Pybitcointools Bip32 CryptoCoins Info Club

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Groestlcoin September 2019 Development Release/Update!

For a more interactive view of changes, click here
In our current world; bordering on financial chaos, with tariff wars, Brexit and hyperinflation rife, you can count on Groestlcoin to consistently produce innovation that strikes to take the power away from the few and into the many, even after a full five and a half years of solid development.
Here is what the team has already announced in the last 3 months since the last development update:

What's Being Released Today?

Groestl Nodes

What am I?

Groestl Nodes aims to map out and compare the status of the Groestlcoin mainnet and testnet networks. Even though these networks share the same protocol, there is currently no way to directly compare these coins in a single location. These statistics are essential to evaluate the relative health of both networks.

Features

Source - Website

Groestlcoin Transaction Tool

What am I?

This is a tool for creating unsigned raw Groestlcoin transactions and also to verify existing transactions by entering in the transaction hex and converting this to a human-readable format to verify that a transaction is correct before it is signed.

Features

SourceDownload

Groestlcoin AGCore

What am I?

AGCore is an Android app designed to make it easier to run a Groestlcoin Core node on always-on Android appliances such as set-top boxes, Android TVs and repurposed tablets/phones. If you are a non-technical user of Groestlcoin and want an Android app that makes it easy to run a Groestlcoin Core node by acting as a wrapper, then AG Core is the right choice for you.

What's Changed?

Source - Download

Groestlcoin Electrum

What's Changed?

Android Electrum-Specific

OSXWindowsWindows StandaloneWindows PortableLinux - Android
Server SourceServer Installer SourceClient SourceIcon SourceLocale Source

Android Wallet – Including Android Wallet Testnet

What am I?

Android Wallet is a BIP-0032 compatible hierarchial deterministic Groestlcoin Wallet, allowing you to send and receive Groestlcoin via QR codes and URI links.

V7.11.1 Changes

Groestlcoin Java Library SourceSource - DownloadTestnet Download

Groestlwallet

What am I?

Groestlwallet is designed to protect you from malware, browser security holes, even physical theft. With AES hardware encryption, app sandboxing, keychain and code signatures, groestlwallet represents a significant security advance over web and desktop wallets, and other mobile platforms.
Simplicity is groestlwallet's core design principle. Because groestlwallet is "deterministic", your balance and entire transaction history can be restored from just your recovery phrase.

iOS 0.7.3 Changes

Android v89 Changes

iOS SourceAndroid Source - Android DownloadiOS Download

Groestlcoinomi Released

What am I?

Groestlcoinomi is a lightweight thin-client Groestlcoin wallet based on a client-server protocol.

Groestlcoinomi v1.1 Desktop Changes

Groestlcoinomi Android v1.6 Changes

Groestlcoin Java Library SourceAndroid Source
Android DownloadWindows DownloadMac OS DownloadLinux Download

Groestlcoin BIP39 Tool

What's Changed?

Source - Download
submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

Transcript of Open Developer Meeting In Discord - 5/10/2019

[Dev-Happy] Blondfrogs05/10/2019
Channel should be open now
Chill05/10/2019
you all rock!
just getting that out of the way :wink:
Tron05/10/2019
Cheers everyone.
theking05/10/2019
Hi fabulous dev team!
Hans_Schmidt05/10/2019
Howdy!
Tron05/10/2019
No specific agenda today.
Questions?
Has everyone seen Zelcore wallet, and Spend app?
theDopeMedic05/10/2019
Any major development status updates that haven't been listed in #news?
Synicide05/10/2019
How was the meetup yesterday? I heard it would be recorded, it is uploaded anywhere yet?
Tron05/10/2019
And Trezor support on Mango Farm assets?
@Synicide Yes it was recorded. The Bitcoin meetup organizer has the video.
I talked about Ravencoin, but mostly about the stuff that was being built on/with/for Ravencoin.
There was about 70% overlap with folks who were at the Ravencoin meetup in March.
Synicide05/10/2019
awesome, looking forward to watching it when it's available
Tron05/10/2019
I'll hit up James and see if he's posting the video.
S1LVA | GetRavencoin.org05/10/2019
@theDopeMedic I'd follow github if youre interested in development status
Synicide05/10/2019
zelcore looks super slick. Been meaning to research its security more with the username/pw being stored on device
Chill05/10/2019
How is the progress on the restricted assets and testnet coming along? A secondary question would be about the approximate fork timeframe.
S1LVA | GetRavencoin.org05/10/2019
Has anyone heard from the community dev (BW) working on Dividends?
Rikki RATTOE Sr. SEC Impresantor05/10/2019
Any word on BW and his progress w dividends?
@S1LVA | GetRavencoin.org LOL
Tron05/10/2019
@S1LVA | GetRavencoin.org Great question. I haven't heard.
Synicide05/10/2019
last meeting BlondFrogs said he would try to connect with BW as he was sick with the flu at the time. Maybe he has an update
S1LVA | GetRavencoin.org05/10/2019
I've tried to get in contact, but with no success.
Rikki RATTOE Sr. SEC Impresantor05/10/2019
Got a funny feeling...
Jeroz05/10/2019
Last time we left off with someone mentioning a foundation and Tron saying let’s discuss that next time iirc
kryptoshi05/10/2019
Has anyone taken a look at the merits for this proposal? Thoughts? https://medium.com/systems-nexus/modified-x16r-algorithm-proposal-for-constant-hash-rate-in-short-time-164711dd9044
Medium
Modified X16R algorithm proposal for constant hash rate in short time
Interpretation Lens V. a0.01
Tron05/10/2019
I did see it. Does anyone think this is a problem?
Synicide05/10/2019
It looks interesting... but I'm not sure what it is trying to solve. Looking at netstats, our 1 hour average block time is perfectly 1 minute
S1LVA | GetRavencoin.org05/10/2019
Last I heard from him he expressed how important finishing the code was. I wouldnt jump to conclusions on his absence within the community.
Synicide05/10/2019
x16r by nature will fluctuate, but DGW seems to be doing a good job keeping consistent block times
Tron05/10/2019
Because of relatively broad distribution across the algorithms, the block times are fairly consistent. It is possible, but very, very unlikely to get a sequence that takes up to 4x longer, but that's super rare, and only 4 minutes.
We did some timing analysis of the algorithms early on. A few are 1/2 as long as SHA-256 and some are up to 4x longer. But when you randomly select 16 it usually comes out about even.
Synicide05/10/2019
1hr avg: 1.02min - 24hr avg: 1min
I think we should focus on building, and not trying to fix what isnt necessarily broken
Tron05/10/2019
Agreed.
Rikki RATTOE Sr. SEC Impresantor05/10/2019
Agreed
Tron05/10/2019
Is everyone ok with the frequency (every other week) of this discussion?
Jeroz05/10/2019
(Added thumbs down to measure)
Tron05/10/2019
@Jeroz Did you do thumbs-up and thumbs down?
S1LVA | GetRavencoin.org05/10/2019
Seems appropriate. Its not like the devs dont poke around here and chat anyways.
Tron05/10/2019
Anything critical that we should be aware of?
Jeroz05/10/2019
When I need a dev, I poke a dev. When that dev is unavailable. I poke another one :smiley:
Hans_Schmidt05/10/2019
BlondFrogs was testing some github code last month to create a dividends snapshot database of asset holders at a given blockheight. Is that planned for inclusion? That's the only thing needed for dividends.
Jeroz05/10/2019
I hope I didn’t offend any devs
With poking around
Rikki RATTOE Sr. SEC Impresantor05/10/2019
Was thinking voting would be an excellent use case for restricted assets. Local communities, nations, etc... could kyc their residents
radiodub05/10/2019
Is x16r will remain fpga mineable
Tron05/10/2019
@Jeroz We're hard to offend.
Chill05/10/2019
Is the general dev feeling that the next fork should and will include everything needed for the next 6-9 months (barring something completely unforeseen)?
Jeroz05/10/2019
I know :smile:
Tron05/10/2019
@radiodub Nearly impossible to stop FPGAs and still keep GPUs
Jeroz05/10/2019
About that: voting is another hard fork right? Not too soon?
Tron05/10/2019
FPGAs can be reprogrammed as fast. It is silicon (true ASIC) that we can obsolete with a tiny change.
@Jeroz Messaging, voting, Tags, Restricted Assets would require a hard fork (upgrade).
We could do them each individually, but folks get weary of upgrades, so current plan is to roll them together into one.
MrFanelli™05/10/2019
Good idea
Jeroz05/10/2019
Oh voting too?
MrFanelli™05/10/2019
People will like that
Jeroz05/10/2019
I thought that was coming later
Tron05/10/2019
Voting is the one that isn't being worked on now. Tags and Restricted assets have taken precedence.
Jeroz05/10/2019
I know. But you plan on waiting to fork until voting is also done?
That would have my preference tbh
But I can see an issue with too many things at the same time
Tron05/10/2019
If someone wants to step in, we've had one of our devs sidelined and he was working on BlockBook support so more light wallets can connect to Ravencoin. Mostly test cases needed at this point.
S1LVA | GetRavencoin.org05/10/2019
Thats a pretty large upgrade.. Bigger surface for unknowns
Rikki RATTOE Sr. SEC Impresantor05/10/2019
At what point would RVN community consider moving to ASICs because having a Bitcoin level of security would eventually be needed?
MrFanelli™05/10/2019
Never rikki
Tron05/10/2019
@S1LVA | GetRavencoin.org 100% Lots of testing on testnet and bounties.
[Dev-Happy] Blondfrogs05/10/2019
I am here :smiley:
Tron05/10/2019
@Rikki RATTOE Sr. SEC Impresantor There's nothing inherently wrong with ASICs but it tends to centralize to data centers and less opportunity for anyone to just run their gaming rig overnight and collect RVN.
Welcome Blondfrogs
MrFanelli™05/10/2019
Asics are too expensive. If we want normal people to mine, then we cant be an asic network
Rikki RATTOE Sr. SEC Impresantor05/10/2019
@Tron True but what happens when the chain needs a Bitcoin level of protection?
Tron05/10/2019
More GPUs, more FPGAs
MrFanelli™05/10/2019
Nvidia loves ravencoin :stuck_out_tongue:
Chill05/10/2019
ok, so we are pro FPGAs
𝕿𝖍𝖊 𝕯𝖔𝖓 𝕳𝖆𝖗𝖎𝖘𝖙𝖔 CEO ∞05/10/2019
Build it and they will come
Tron05/10/2019
It's all relative. It is cost to attack. If an ASIC isn't available for rent, then only option is rental of non-allocated GPUs
Rikki RATTOE Sr. SEC Impresantor05/10/2019
@Chill Eventually everyone will need FPGAs to be profitable on RVN, at that point I don't see why we just don't make the switch to ASICs
Tron05/10/2019
Also, as much as we don't focus on price, the price does matter because it determines the amount of electricity and hardware will be deployed to get the block reward. Price increase means more security, more mining means more security means higher price.
It's a circle.
Chill05/10/2019
someone tell that to the twitter handler
HailKira05/10/2019
you guys adding seedphrase to desktop wallet?
[Dev-Happy] Blondfrogs05/10/2019
@HailKira We will, just is not a high priority right now.
MrFanelli™05/10/2019
Twitter handle wants rvn ded
Rikki RATTOE Sr. SEC Impresantor05/10/2019
I just don't see much difference between ASIC and FPGA and I'd rather have the added nethash an ASIC will provide once GPUs are virtually kicked off the network
kryptoshi05/10/2019
I'm at 11 GB future proof
Tron05/10/2019
That also limits miners to big money, not gaming rigs.
Synicide05/10/2019
@Rikki RATTOE Sr. SEC Impresantor you have to keep in mind the 'added nethash' is all relative
Rikki RATTOE Sr. SEC Impresantor05/10/2019
FPGAs will limit miners to big $$$ too IMO
Tron05/10/2019
@kryptoshi New algo x16r-12G requires 12GB :frowning:
Seal <:cricat:> Clubber05/10/2019
But sperating smaller gb cards would lead to less adoption if we ever become a mainstream coin.
Adpotion of mining that is
Chill05/10/2019
but we are a mainstream coin
Seal <:cricat:> Clubber05/10/2019
Mains stream as in what eth did
Tron05/10/2019
@Rikki RATTOE Sr. SEC Impresantor I agree. Not a perfect solution.
Steelers05/10/2019
Is this a Dev meeting or Algo meeting :smiley:
Seal <:cricat:> Clubber05/10/2019
But if we ever go mem lane. We should aim for 6 or 8gb.
Tron05/10/2019
Open to other questions.
Rikki RATTOE Sr. SEC Impresantor05/10/2019
@Tron Probably not the time and the place to have this discussion as we stand currently but IMO we're gonna have this conversation for real eventually
Seal <:cricat:> Clubber05/10/2019
Most cards have 6gb now.
kryptoshi05/10/2019
Why 12 gb ? Such a massive jump
Seal <:cricat:> Clubber05/10/2019
^
Would also like to know
Tron05/10/2019
@kryptoshi I was joking. You said you had 11GB card.
Seal <:cricat:> Clubber05/10/2019
Haha
You got em good
I cant imaghine the face he had when he was 1gb short
Lel
Rikki RATTOE Sr. SEC Impresantor05/10/2019
That's what she said
kryptoshi05/10/2019
Hahaha
MrFanelli™05/10/2019
need a 2080ti
Seal <:cricat:> Clubber05/10/2019
How much does the VII have?
16?
[Dev-Happy] Blondfrogs05/10/2019
Any other questions you have for us?
Hans_Schmidt05/10/2019
@[Dev-Happy] Blondfrogs You were testing some github code last month to create a dividends snapshot database of asset holders at a given blockheight. Is that planned for inclusion? That's the only thing needed for dividends.
Chill05/10/2019
a dev might want to contact Crypto Chico for some 'splaining
[Dev-Happy] Blondfrogs05/10/2019
I still haven't contacted the developer that was working on dividends. Was pretty busy with some other stuff. I will contact him this next week, and see where we are at for that.
Rikki RATTOE Sr. SEC Impresantor05/10/2019
Chico doesn't do interviews, shame. Tron would be a much needed interview for his community
[Dev-Happy] Blondfrogs05/10/2019
As far as releasing dividends, I can be released at anytime the code is finished and doesn't require any voting or hardfork to occur
kryptoshi05/10/2019
Android asset aware wallet?
Seal <:cricat:> Clubber05/10/2019
Is in beta right
Tron05/10/2019
Testing went well today on Android. Nearing release.
[Dev-Happy] Blondfrogs05/10/2019
as it is a mechanism that is wallet specific
liqdmetal05/10/2019
no protocol level dividends you guys are saying?
[Dev-Happy] Blondfrogs05/10/2019
correct
Tron05/10/2019
DM me if you want to test Android with Asset support. I'll send you the .APK.
Rikki RATTOE Sr. SEC Impresantor05/10/2019
RVN gonna be on tZero wallet? :yum:
liqdmetal05/10/2019
why not? what is the logic on non-protocol dividends
assets + protocol dividends is nirvana
[Dev-Happy] Blondfrogs05/10/2019
dividends is pretty much sending payments to addresses. Right now, you would have to do this manually. The dividends code, will allow this to be done quicker and easier.
No consensus changes are required.
Tron05/10/2019
New Android wallet is BIP44 and original Android wallet is BIP32/BIP39 so the words will not find the funds. You'll need to send them to another wallet, and then send them to new BIP44 derived address.
liqdmetal05/10/2019
we already have payments to addresses
so dividends is not a feature so much as simple wallet script
Hans_Schmidt05/10/2019
@[Dev-Happy] Blondfrogs The dividend code changes look risky'er to me than messaging. Would you consider "tags" branch test-ready?
[Dev-Happy] Blondfrogs05/10/2019
Not yet @Hans_Schmidt
Dividends is easier then you would think if coded correctly. I still haven't seen the code from the community developer. Excited to view it though.
Hans_Schmidt05/10/2019
@[Dev-Happy] Blondfrogs Sorry- I meant restricted, not dividend
kryptoshi05/10/2019
@Tron on the Android wallet, anyone successfully added their own node and got it to sync faster? Always have issues. I have a supped up node and cannot get it to work with the Android wallet...
[Dev-Happy] Blondfrogs05/10/2019
@Hans_Schmidt Oh, that makes more sense. Yes, they are very risky! That is why we are going to create a new bug bounty program for restricted assets testing.
Rikki RATTOE Sr. SEC Impresantor05/10/2019
Once the network does get flooded w FPGAs, should we even consider changing the algo a couple times a year? That would only give bitstream developers added time to hoard their creations for themselves
Kind of like they're already doing with their x16r bitstreams :yum:
kryptoshi05/10/2019
Flooded... lol... like that hardware has mass production scale like gpus...come on dude
MrFanelli™05/10/2019
Bip44 wallet? :smiley:
Rikki RATTOE Sr. SEC Impresantor05/10/2019
@kryptoshi Eventually yes, where there's $$$ to be made, people make things happen
MrFanelli™05/10/2019
So can we trade from that in the new Binance Dex when RVN get listed?
kryptoshi05/10/2019
@Rikki RATTOE Sr. SEC Impresantor Yes Soon TM lol. :soontm:
Tron05/10/2019
@kryptoshi There are some things we can do to speed it up. For a new wallet, it shouldn't need to sync. For recovered wallet, it needs to sync from beginning of BIP44 wallet support on iOS so words can be moved between the two.
Other options include grabbing the first derived address and looking it up on an explorer to see when it was first used and sync from there.
Another option is to add an optional number with the 12 words so it knows when to start syncing.
There isn't a good reason on an SPV wallet to sync before the seed was created.
kryptoshi05/10/2019
Cool. Glad you are looking at speedup options.. :right_facing_fist: :left_facing_fist:
[Dev-Happy] Blondfrogs05/10/2019
@MrFanelli™ If the binance dex support RVN deposits. I am sure you would be able to send from it
MrFanelli™05/10/2019
Has binance reached out for any info or anything?
I seen that we ranked in some voting competition they had on twitter
for an ama
Rikki RATTOE Sr. SEC Impresantor05/10/2019
I believe we'll need to create a fund of approximately $300,000 in order to get a BNB-RVN asset created and listed on the Binance FDEX
[Dev-Happy] Blondfrogs05/10/2019
In order to work with binance we need Ravencoin integrated into Blockbook.
Tron05/10/2019
@MrFanelli™ I've reached back out to Binance on the AMA.
MrFanelli™05/10/2019
Awesome :smile:
kryptoshi05/10/2019
@Tron you are a natural on the interviews... cool as a cucumber. :sunglasses:
Tron05/10/2019
Thanks @kryptoshi
[Dev-Happy] Blondfrogs05/10/2019
Cool. We are done for today.
Please don't ask us any more questions :smiley:
Tron05/10/2019
Thanks everyone!!!!
[Dev-Happy] Blondfrogs05/10/2019
Cya everyone!!
S1LVA | GetRavencoin.org05/10/2019
Cya happy feet, Thanks
Thanks Tron
Seal <:cricat:> Clubber05/10/2019
:bepbep:
submitted by mrderrik to Ravencoin [link] [comments]

Mycelium announces Mycelium Gear

Mycelium proudly announces the release of its first online service, Mycelium Gear, based on the Straight Server developed by Roman Snitko, who has joined our team and is now leading this project.
Mycelium Gear is a merchant processor which demonstrates something that has never been possible before Bitcoin: the ability for merchants to use a full featured merchant processor to receive payments online, and have the money go straight into their own wallets, even if that wallet is running on their own phone in their pocket. Mycelium Gear does not hold any money on the merchant’s behalf, meaning there are no days of waiting for the money to arrive into your bank account, no risk of money being lost by the merchant processor, no need to fill out applications where you give out tons or personal information, and no complicated restrictive policies. All of this means that the costs of running this service are almost zero, which is also what it costs for you to use it: it’s absolutely free. It’s simplicity also means that it’s very easy to set up: you can have it up and running on your site within minutes.
Mycelium Gear relies on the unique benefits of BIP32 HD wallets, which use a single unique random number, called a seed, to generate a list of public bitcoin addresses (called an xpub key), and a corresponding list of private keys (xpriv key) for each of those addresses. When using Mycelium Gear, you give it only the xpub key that generates a unique bitcoin address for each customer invoice, while you keep the private xpriv key - the part that actually allows you to spend that money - only in your own wallet. Mycelium Gear also allows you to set your prices in other currencies, such as USD and EUR, and automatically adjust the amount of bitcoin for the invoice based on the bitcoin price at the time of purchase. When a purchase is made, Mycelium Gear presents the customer with an invoice with a bitcoin address to send their payment to. When the invoice is paid, Mycelium Gear monitors the public Bitcoin blockchain and notifies the merchant’s web store when a payment is detected. Since all bitcoin payment addresses are those of the merchant’s own private wallet, Mycelium Gear never needs to interact with any money directly.
Mycelium Gear is designed for both basic and advanced users. For basic users without a lot of programming experience, it provides an easy step-by-step walkthrough that creates a widget they can easily copy/paste into their website. For more advanced users, Mycelium Gear has a full API, including detailed documentation on how to implement it into your own shopping cart software.
Mycelium’s hope is that Gear will encourage even more merchants to adopt bitcoin and completely change the way merchant transactions are done, thus continuing our goal of decentralizing everything, improving privacy, and eliminating unnecessary third parties in the Bitcoin economy.
submitted by Rassah to Bitcoin [link] [comments]

[Article] Bitcoin Private: the revolution of privacy coins?

Have you ever heard about Bitcoin Private (BTCP)?
Bitcoin Private (BTCP) is a cryptocurrency originated from the hard fork of two cryptocurrencies, Bitcoin (BTC) and Zclassic (ZCL), occurred on 28th February at blocks 511346 for BTC and 272991 for ZCL, which was released to the public (main-net launch) on 03/03/2018.
The main advantages in this coin compared to Bitcoin are: best privacy protocol (zK-SNARKs), community driven, lower block time and higher block sizes which results on 8x faster transactions, very low fees, SegWit and Lightning Network ready, PoW algorithm which promotes a decentralized coin ecosystem and difficulty adjustment on every block to control inflation of the coin.
For laymen, a very brief way of explaining the potential of Bitcoin Private is that it uses Bitcoin's own technology, but with shielded (private) and faster transactions, very lower fees and have much more resources!! We can say that Bitcoin Private is like Bitcoin, but much better ..!
Community driven and Ambassador’s Program
A great difference that Bitcoin Private has compared to any other privacy coins is that it is a community driven project, so everybody can be part of the community and help on the project.
There already are more than 50,000 members on their social communities being part of the project and supporting the coin.
If you want to be a member of the community and support the project you just need to join on their channels on Telegram, Twitter, Facebook, Instagram, Medium, Discord, Github or Reddit. You can choose the ones you prefer to use to be a part of.
They also have a program called “Ambassador Program”, where anybody who wants to contribute in the project with any type of knowledge can join. If you want to work on Bitcoin Private join the Ambassador’s Program here and start working and helping on the project!
John McAfee supports Bitcoin Private
After a votation made by John McAfee on his Twitter where there were over 21,000 votes, 70% of the people have chosen him to lead a Privacy Movement to promote privacy within the crypto field all around the world. John has already created the Declaration of Currency Independence where anybody can sign and be support the movement for a fairer financial world.
The BTCP community is very proud and happy to have John McAfee as its newest member. He has been assigned as father of privacy moment and a big representant of Bitcoin Private, as the community believe he is going to be the speaker about Bitcoin Private and promote the big privacy coins.
Hard working developers and modern resources
After only 3 months after main-net launch the strong development team has built much more than everybody thought! Bitcoin Private already have Ledger and Trezor hard wallets support, SegWit coin claiming, marchant plataform where you can integrate Bitcoin Private payments on your business easily (Bitcoin Private Pay) and transactions via SMS where you don’t need internet to transfer your coins to anybody (Cointigo).
For your surprise this is just the beginning, now the development team are focused on rebase BTCP code base and implementing BIP32, full SegWit and Lightning Network support.
Bitcoin Private short term predictions
After many conquers and happy news in the last week, the latest predictions for Bitcoin Private prices have changed. Specialists believes that the coin may reach $200 worth until the end of July.
In my opinion, this is very possible and not hard to happen, in view of this coin have much value and is only on its beginning, but it’s undervalued because of lack of big exchanges and excessive FUD from people who want the project to falls or from other competitor’s coins. So maybe now it the time to full our bags with BTCPs as the coin is worth only $25 today and we can get a possible gain of 800%!! Are you in?
Available Exchanges
Bitcoin Private official website: http://btcprivate.org/
Join Bitcoin Private Amabassador’s Program: https://support.btcprivate.org/423334-How-Do-I-Become-An-Ambassador
Sign the Declaration of Currency Indepence: https://currencyindependence.com/
submitted by ivanlucci to BTC_Private [link] [comments]

I made an app to charge with bitcoin aimed to merchants (specially Venezuelans)

Hi,
I made an app to charge your clients or friends with Bitcoin. That means, you type the amount you want to charge in fiat, choose a destination wallet, and the app give you a Bitcoin payment link that you can show to your clients with a QR code, copy to the clipboard or share with other apps.
The app does not handle your private keys, so it’s ideal to use with your employees' own devices or with a store shared computer. You add wallets to the app with their public addresses.
Other things that you can do:
Why it is aimed specially to Venezuelans?
The app is aimed to any merchant, but could be interesting for Venezuelans because of the Bolivar / Bitcoin exchange rates. Most apps out there use the official VEF/USD exchange rate and then convert to Bitcoin. That would mean huge loses for the seller, given that the official rate differs in several orders of magnitude from any market-based rate. But my app uses the exchange rates given by Bitcoin Venezuela’s API (https://www.bitcoinvenezuela.com/), a web that estimate the exchange rates from market prices at Local Bitcoins (https://localbitcoins.com/).
The app is localized in English and Spanish (named “Pay me with Bitcoin” and “Págame con Bitcoin” respectively).
Available in…
Google Play and the Microsoft Store (for Windows 10 desktop mobile). I developed the app with Xamarin Forms with iOS in mind, so it should be trivial to port to iOS, but I cannot afford the Apple Store fee and I don’t have access to a Mac at the moment.
Future
If there is any interest in the app, I would like to:
Either support Coinbase Commerce or implement Bip32 myself, so every ticket (charge) that you generate with the app go to a different wallet, derived from a master public key. In this way you client won’t know how much money you make / have, and you would get confirmations for every ticket, avoiding confusions.
The app should also use notifications for when a payment is received.
And of course, iOS.
Download links:
Android
Windows 10 desktop/mobile
submitted by SalvadorJesus to Bitcoin [link] [comments]

[Article] Bitcoin Private: the revolution of privacy coins?

Have you ever heard about Bitcoin Private (BTCP)?
Bitcoin Private (BTCP) is a cryptocurrency originated from the hard fork of two cryptocurrencies, Bitcoin (BTC) and Zclassic (ZCL), occurred on 28th February at blocks 511346 for BTC and 272991 for ZCL, which was released to the public (main-net launch) on 03/03/2018.
The main advantages in this coin compared to Bitcoin are: best privacy protocol (zK-SNARKs), community driven, lower block time and higher block sizes which results on 8x faster transactions, very low fees, SegWit and Lightning Network ready, PoW algorithm which promotes a decentralized coin ecosystem and difficulty adjustment on every block to control inflation of the coin.
For laymen, a very brief way of explaining the potential of Bitcoin Private is that it uses Bitcoin's own technology, but with shielded (private) and faster transactions, very lower fees and have much more resources!! We can say that Bitcoin Private is like Bitcoin, but much better ..!
Community driven and Ambassador’s Program
A great difference that Bitcoin Private has compared to any other privacy coins is that it is a community driven project, so everybody can be part of the community and help on the project.
There already are more than 50,000 members on their social communities being part of the project and supporting the coin.
If you want to be a member of the community and support the project you just need to join on their channels on Telegram, Twitter, Facebook, Instagram, Medium, Discord, Github or Reddit. You can choose the ones you prefer to use to be a part of.
They also have a program called “Ambassador Program”, where anybody who wants to contribute in the project with any type of knowledge can join. If you want to work on Bitcoin Private join the Ambassador’s Program here and start working and helping on the project!
John McAfee supports Bitcoin Private
After a votation made by John McAfee on his Twitter where there were over 21,000 votes, 70% of the people have chosen him to lead a Privacy Movement to promote privacy within the crypto field all around the world. John has already created the Declaration of Currency Independence where anybody can sign and be support the movement for a fairer financial world.
The BTCP community is very proud and happy to have John McAfee as its newest member. He has been assigned as father of privacy moment and a big representant of Bitcoin Private, as the community believe he is going to be the speaker about Bitcoin Private and promote the big privacy coins.
Hard working developers and modern resources
After only 3 months after main-net launch the strong development team has built much more than everybody thought! Bitcoin Private already have Ledger and Trezor hard wallets support, SegWit coin claiming, marchant plataform where you can integrate Bitcoin Private payments on your business easily (Bitcoin Private Pay) and transactions via SMS where you don’t need internet to transfer your coins to anybody (Cointigo).
For your surprise this is just the beginning, now the development team are focused on rebase BTCP code base and implementing BIP32, full SegWit and Lightning Network support.
Bitcoin Private short term predictions
After many conquers and happy news in the last week, the latest predictions for Bitcoin Private prices have changed. Specialists believes that the coin may reach $200 worth until the end of July.
In my opinion, this is very possible and not hard to happen, in view of this coin have much value and is only on its beginning, but it’s undervalued because of lack of big exchanges and excessive FUD from people who want the project to falls or from other competitor’s coins. So maybe now it the time to full our bags with BTCPs as the coin is worth only $25 today and we can get a possible gain of 800%!! Are you in?
Available Exchanges
Bitcoin Private official website: http://btcprivate.org/
Join Bitcoin Private Amabassador’s Program: https://support.btcprivate.org/423334-How-Do-I-Become-An-Ambassador
Sign the Declaration of Currency Indepence: https://currencyindependence.com/
submitted by ivanlucci to BitcoinPrivate [link] [comments]

VegaWallet "The Complete Crytpocurrency Platform" - Secure Wallet, Exchange, Point of Sale and Mobile-Pay Solution

VegaWallet

Visit https://VegaWallet.com for more information
“VegaWallet aims to be a complete cryptocurrency platform. Our products and services will cover your journey into cryptocurrency every step of the way. We’ll make it easy to buy and trade, give you a safe place to store it, then provide options for spending it the way you want!” - Tarek Hajri CEO of VegaWallet
The Problems Facing Cryptocurrency
Exchange Problems - Services that offer the purchase of cryptocurrency tend to have extended wait times for new member activations, even longer wait times for an exchange, unheard of fees, and numerous security issues. Among these services there is a need for greater security implementation to protect users.
Applications -There are limited ways in which customers can spend their crypto assets in real-world applications. Most cryptocurrencies tend to sit in exchanges waiting to be extracted back to fiat currency once again, which in turn incurs more fees. Until now very little has been done to ensure the average person can take advantage of the opportunity.
VegaWallet’s Solution
The VegaWallet platform provides a complete solution. The project comes in several phases with answers to each problem mapped out along the way.
VegaWallet Platform - Our Wallet, Exchange and VegaPay provide a complete and secure solution to streamline a customer’s crypto journey. No other company offers a solution to identified problems as thorough and all encompassing as VegaWallet does. VegaWallet integrates the latest security technology and focuses on maintaining a clean user interface.
VegaPay and Point of Sale - An advanced payment gateway for paying with crypto anywhere and anytime, even at places or websites that do not yet accept cryptocurrency. This will be further supported by a Point of Sale Systems which will allow every business from small mom and pop shops to huge internet retailers to incorporate the use of cryptocurrency without any significant fees. Customers of these shops will even be able to buy cryptocurrency at check-out with traditional payment methods.
VGW Token (Based on ERC-20) - Our native VegaWallet Token allows for lower fees and faster transfer times. This technology combined with our advanced platform will allow effortless movement of cryptocurrency for customers to maximize opportunities and profit. The VGW token will also be the backbone of our Loyalty and Rewards Program and Point of Sale System.
PHASE ONE: THE VEGAWALLET EXCHANGE AND WALLET
"We all know good design makes good business. Our team actively listened to the cryptocurrency community during production and the result is stunning. We can guarantee you’ll love it. I know I do!” - Jacob Ballou Co-Founder
Main Focus of the VegaWallet Exchange
Full Integration with VegaWallet API’s and our VegaWallet Token for easy transfers
Fast and reliable exchange using formulas to ensure prices are updated by the second.
Purchase of Cryptocurrency with a credit card or bank transfer in conjunction with VegaWallet (Will require KYC verification to ensure all anti-terrorism and money laundering guidelines are followed.)
Security is the key to the project, new security features will be introduced in phases.
Advanced options for market and limit orders with historical price tracking.
The VegaWallet exchange will continue to introduce more coin pairings each business quarter to increase total exchange liquidity.
VegaWallet Digital Asset Wallet
Our platform allows our users to hold, send, and receive digital assets securely. Clients remain in complete control of their assets knowing they are protected. Our software and integrated API’s provide our clients’ options to manage private keys safely and set various procedures to help remove points of failure. Different from traditional banks or other digital asset wallets we do not hold custody of user funds, meaning users have full control over their accounts at all time.
VegaWallet’s Advanced Security Features
Multi Signature P2SH -(P2SH) Otherwise known as pay--to--script--hash addresses require multiple private keys to transact. This technology is popularly referred to as “Multi-Signature Implementation.” This process eliminates single points of failure by ensuring all keys are stored on separate devices. If a malicious attack were to affect one point of entry the other point of entry would still be needed to gain access. The easiest way to understand P2SH is to compare it to a safe that requires two keys with a third key
HD (BIP32) Financial Privacy - BIP-32 is a Bitcoin Protocol where multiple addresses for Bitcoin are derived from a single source seed. Also referred to as an HD wallet (hierarchical deterministic). Our BitGo partnership allows for BIP-32 enhanced security and integration. This process implements a regular rotation of your public key. The rotation of public keys makes it very difficult for people to follow your transaction history on the public blockchain making it essentially impossible to target your wallet and information.
Biometric Authentication (In Phase 2 Update) -New generation smartphones use several forms of biometrics as substitutes to traditional pin passwords. These same authenticators will be used in an update to VegaWallet. Biometric technology will allow users to verify log-in or outgoing transactions by using fingerprint or iris scanning.
Google 2FA & SMS Authentication - Google Authenticator 2FA is a software token that implements two-step verification by using a time-sensitive One-time Password (OTP) and HMAC-based OTP Algorithm. These processes help to authenticate users of mobile applications by Google.
PHASE TWO: The VegaWallet Point of sale and VegaPay
POINT OF SALE SYSTEM
The Business Edition of VegaWallet in Phase Two of our project will receive an update allowing it to become a Point of Sale (POS) System. The POS System will be controlled and editable through the company dashboard. This will allow companies to use our wallet to accept cryptocurrency, cash and credit in real time for retail and service purposes. Customers of companies using our platform will also be able to purchase cryptocurrency through their point of sale system using traditional payment methods such as cash or credit card. This process will be as easy to complete as purchasing a gift card currently is. Customers wishing to do so must have a KYC verified VegaWallet account.
Our platform will serve as a branch for society to integrate cryptocurrency by remaining usable in everyday situations. This would be accomplished by allowing you to instantly pay your bills or buy your cup of coffee with your stored funds. It will also work internationally for individuals and companies to transfer funds instantly without the need for banks or prolonged wait times. This technology will bring financial stability and banking to places where traditional institutions do not reach. VegaWallet’s platforms will help to connect the globe in a secure and timely manner.
VegaWallet Rewards and loyalty program
VegaWallet’s Point of Sale will be offering a rewards system based on the VGW token. Retailers will have the option to sign-up in account settings to provide this program. With each purchase made through our system, they will have the ability to send VGW tokens instead of using a traditional rewards platform.
Loyalty and rewards programs help to retain customers and provide an essential marketing tool in today’s world. However, most of these programs can cost thousands of dollars to implement making them out of reach for most small retailers.
Vegapay - Mobile Payment Solution
VegaWallet aims to implement the use of cryptocurrency on a large scale with the creation of our new platform while also integrating the use into existingtechnology. Most cryptocurrency and blockchain companies in today’s world are focusing on creating cryptocurrency backed credit and debit cards. The use of a card is not needed when transactions take place in the most modern point of sale systems with “Mobile Pay” applications.
VegaWallet will introduce “VegaPay” at the end of phase two development. VegaPay, when activated, will verify the transaction and immediately use the VegaWallet exchange to trade the correct amount of cryptocurrency in your wallet account to fiat to pay at any locations that do not yet accept cryptocurrency. The funds will then be sent to the terminal using Near Field Communication (NFC) integration.
For use in lack of physical presence of the payment terminal, VegaPay will create a one-time use credit card number for entrance through the phone or online. This unique number can be treated as a gift card and will be backed by all security protocols offered for the entirety of our platform. VegaPay will use the one-time code instead of providing a permanent number for increasing account security and reducing fraud or hacking attempts related to VegaWallet services.
VEGAPAY PROCEDURE BREAKDOWN LISTED IN WHITE PAPER
The VegaWallet VGW Token
  • Zero fee transfers between the VegaWallet exchange and secure VegaWallet Digital Asset Wallet when using VGW
  • Lower exchange fees by 50% when using the VGW tokens during a transaction. Normal : 0.1% VGW Token : 0.05%
  • VGW Token will be the first token used by businesses for our integrated Loyalty and Rewards program.
  • Used by businesses to purchase advanced point of sale features released in Phase Two of the VegaWallet platform.
The VegaWallet Token Ticker Symbol VGW
Ethereum Network Protocol ERC-20
Total Token Supply 200,000,000
Total Public Sale Supply 120,000,000
Public Sale Introduction Price 1 Ethereum = 1800 VGW
Launch Price 1 Ethereum = 1250 VGW
Development Fund Breakdown 40% Development / 30% Marketing 10% Payroll / 10% Security / 5% Legal / 5% Other

Our Leadership Team (View Full Team and Bios in White Paper)
Tarek Hajri - https://www.linkedin.com/in/tarek-hajri-9b79326/
Jacob Ballou - https://www.linkedin.com/in/jacob-ballou-993a61162/
Dea Belazi - https://www.linkedin.com/in/dea01/
Bill Oldham - https://www.linkedin.com/in/oldhambill/


PARTNERSHIP
AscellaHealth - https://AscellaHealth.com







submitted by VegaWallet to CryptoICO [link] [comments]

Time for another *cough-semi-cough* weekly Mycelium feature demo, as well as update on what's going on behind the scenes!

Setting up a Watch-Only address in Mycelium:
First, make sure that you have enabled Expert Mode in Mycelium by going to Settings in the drop-down menu from the main screen, scrolling down to ADVANCED SETTINGS, and turning on the check box next to "Expert Mode."
This will enable key management in the section to the left of the main screen. To get to it, swipe left-to-right. You can set up a watch-only address in one of two ways.
If the address is not in your wallet yet:
After swiping to the KEYS section of the wallet, find and click the Add Key icon at the top right of the screen.
If you have a paper wallet, hit "Scan" and scan only the public key. Or if you can copy/paste the key from your phone, select Clipboard to import it. This will import only the public key, creating a watch-only address. You can tell which addresses in your wallet have private (spendable) keys and which do not by the key icon next to the address. As you can see, the key imported in this example does not have that icon, and thus no bitcoins can be spent from it.
Whether you have Aggregated View enabled or not (more on that next time), simply highlighting the address in the list selects it as the default address, allowing you to receive payments to it (note the "Send" button is now missing).
If you already have a bitcoin address in your wallet, and want to make it a Watch-Only address:
(MAKE SURE YOU HAVE A BACKUP OF THE PRIVATE KEY SOMEWHERE BEFORE PROCEEDING)
In the list of keys, find the address you wish to make Watch-Only, and highlight it. The bar at the top will change to blue, adding options such as Label and Archive. This also changes the functionality of the dropdown menu (the three vertical dots). Click the dropdown menu, and select Delete
In the menu that pops up, asking if you wish to delete the private key, turn on the checkbox for "Keep as read-only..."
Once you click Yes, and confirm, the address's private key will be deleted, and you will be left with only a watch-only address, which you can select as the default receiving address in the same way as in instructions above.
This option allows you to add addresses you wish to keep an eye on to keep track of balances, carry secure addresses to receive payments on that you don't want to get stolen, or even do things like allowing waiters and sales staff to accept payments from customers on multiple devices, without worrying about any of them having direct access to the received funds (yes, we're discussing about future POS options too).
Now, for the "Things We're Working On Now" updates:
  • The next release will include pricing sources from Bitstamp, BTC-E, Kraken, BTC China, Coinbase, and Bitpay. These have been added to the beta version, and are undergoing testing. Note, MtGox is now gone (apologies to those who will miss it). For now, we believe having it there will only confuse newbies.
  • Message signing has been added and is undergoing testing as well.
  • We've added Hebrew, French, and Korean translations.
  • Finally, exchange rates will be MUCH faster at showing up and refreshing, thanks to an upgrade to our servers on the back end.
Progress on Local Trader is also progressing nicely, with Jan and Andreas working diligently on it, and we still expect to have the beta version out some time within a week. HD
Wallets (BIP32) is another major feature that has been heavily requested (not just in Mycelium), and last week Jan and Andreas spent most of one of the Berlin Conference days discussing how to implement and standardize it with the head developers of other major wallets. So, there is definite progress on this, though the most we can promise at this point is that it will be implemented "at some time." Hopefully soon.
As usual, if you want to see any features added, or have any concerns or questions, please let us know!
submitted by Rassah to Bitcoin [link] [comments]

everiToken launched MainNet on 31st July 2018

everiToken launched MainNet on 31st July 2018
July 31,2018

Introduction

everiToken public blockchain aims to become the infrastructure of token economy. From small tickets to large buildings, assets can be easily issued via token in our chain. It’s world’s first token-customized public chain for token economy. Following content will enable you to understand our new techniques, products and ecosystem for launching MainNet.
We have implemented the core functions of NFTs(Non Fungible Tokens) during the TestNet, which is the first step towards Token Economy. Now we have greatly enriched our functions and announced that our MainNet is online.
Technical details can be found in our whitepaper.

EVT 1.0 Release

EVT 1.0 is the first release version of everiToken blockchain. Main changes from Aurora 4.1
u Refactor token database: Improves performance and other bug fixes.
u Fix some issues when syncing multiple nodes.
u Other bug fixes and improvements.
For the full list of features indluded in this release, please check the our official website. Docker: docker pull everitoken/evt:1.0

Token Based

Support both Fungible and NonFungible Tokens

Now everiToken supports both Fungible Tokens and NonFungible Tokens. Tokens are different from digital currencies issued by central banks and encrypted currencies (like bitcoin or ETH). We define a Token as a proof that you have an exclusive share of the economy in an asset, a period of time, or a particular place, or a time service provided by a particular entity. Tokens are divided into two types: Fungible Tokens and Non-Fungible Tokens. Everyone can easily Issue their own Tokens and these tokens can be transferred and managed on everiToken conveniently.

Authorization Tree: support hierarchical multi signatures

The everiToken system contains three kinds of permissions in authorization management: Issue, Transfer and Manage. Each specific authorization follows a tree structure and is therefore called Authorization Tree. As the root, each permission has a threshold, and it is connected to one or more actors.
With the authorization tree, everiToken provides a flexible authorization management and naturally supports hierarchical multi signatures which can solve a variety of practical problems.

EVT supports BIP44 standard

BIP(Bitcoin Improvement Proposal) is the suggestion for improvement in bitcoin. Among them the BIP32, BIP39 and BIP44 co-defined the widely used HD wallet. EVT has been audited by the BIP44 standard with an international token number 207, any wallet can use “207” to represent EVT. The wallet can automatically obtain a private key of everiToken without producing a new mnemonics code. ETH and EOS both have the BIP44 number, among them ETH and ETC is 60 and 61, EOS is 194.

Payment mechanism

Support Payer mechanism

A Payer is an account who pays for a transaction. everiToken allows users specify payers in a transaction. This is useful for creating accounts. For safety, payers should have extra signatures in the transaction.
If the Payer is set, fees for the user will be zero.

New Pinned EVT(PEVT) mechanism

A Pinned EVT is similar to EVT but cannot be transferred. It can only be used as fuel fee.
Converting from EVT to Pinned EVT is allowed. The EVT’s exchange rate against pinned EVT is always 1. Since pinned EVT is not currency, it is safe enough to airdrop pinned EVT to someone.
Generally users should not convert EVT to pinned EVT, as they are able to use EVT to charge fuel fee.
If one decide to convert EVT to pinned EVT, the pinned EVT will automatically bind to the receiver. That’s why it is called Pinned EVT.

More functions

Support Suspended Transactions

We have added delay transaction support(In-chain suspend-siging transaction) from Aurora 2.1.
Based on this, we allow users to issue half transaction requests according to specific indicators to complete some functions similar to exchanges.

Support Metadata

everiToken allows users add metadata to their related tokens, also domains and groups. Once added, no one can modify or delete the metadata on the chain. The metadata can provide a lot of informations which is useful in many situations.

Support the Dapps on chain to Issue their Tokens

everiToken will help Dapps on chain to issue their tokens. Such as get their accounts into a whitelist. Although everyone can issue their own tokens, not everyone has high credibility. In everiToken’s whitelist means you are more credible and everyToken can endorse them.

Creation

Develop a Safe Contract layer

Smart contracts are, in theory, effective digital means of facilitating decentralized exchanges of goods or services without the need of a middleman. However, in practice, smart contracts suffer from widespread security vulnerabilities that arise from improper implementation and logical errors, giving rise to consequences such as lock-outs, leaked access, and improper termination. As such, smart contracts often fail to provide trust and may be viewed as less reliable than traditional contracts or exchange.
everiToken uses the Safe Contract layer to replace the smart contract. Rather than code directly, users rely on SafeContracts to facilitate processes such as the issuance and transfer of tokens. By simplifying functions to the core requirements, SafeContracts ensure that all chain transactions are secure and without loopholes, as the available API functions are fully reviewed and verified. Even though SafeContracts are not Turing complete, they can still achieve the majority of necessary functions via API’s, and provide flexibility to token-issuers for the completion of off-chain services.
Furthermore, SafeContracts have the added benefits of increasing accessibility and TPS. With the former, the inclusion of API’s makes it simple for easy integration into existing workflows without writing chain-integration code from scratch. With the latter, the usage of API’s allows for various translations types to be distinguished easily, and independent token transactions can be processed in parallel at faster speeds. This is the main reason for everiToken’s High TPS, High Security and High Standardization.

Create everiPass/everiPay protocol: the world’s first QR code protocol based on blockchain

everiPass/everiPay is a payment born for face-to-face micropayments using everiToken public block chain.
everiPass/everiPay includes the standard of QR code generation and the definition of communication protocol. Based on everiToken public blockchain with five characteristics:
Instant Clearance, A transaction is a settlement.
Decentralization, P2P payment, no centralized platform, no one can modify the data on chain, everyone can participate in pricing.
Most secure, The data and content in the block chain can not be forged or tampered with, so as to maximize the protection of user's property security.
Compatible, everiPass/everiPay support all Tokens supported by everiToken, not only currency but also tokens and points, even a key to open a door, and you can use it almost in everywhere, just with your phone.
Most convenient, Even if you can’t connect to the Internet, you can complete the transaction.
the everiToken TestNet has reached 5000 TPS, Considering the situation of equipment and network, we think that a transaction can be completed within five seconds.
Based on the above five characteristics, everiPass/everiPay can provide the most secure, most convenient and enjoyable services in face-to-face payments.
Within everiPass/everiPay you can send and receive tokens, pay in stores, pay for tickets, pass a door, and much more things you can think.

Other tools

EVTJS

EVTJS, which is the first API binging libaray for everiToken and JavaScript. We are looking forward to your feedback.
Homepage: https://www.github.com/everitoken/evtjs
-Supports NodeJS & Browser
-Supports everiToken MainNet
-Is suitable for building testing apps on everiToken

everiSigner add-on

everiSigner add-on is a bridge that allows you to visit the distributed web of tomorrow in your browser today. It allows you to run everiToken apps right in your browser.
everiSigner includes a secure identity vault, providing a user interface to manage your identities on different sites and sign blockchain transactions.
You can install the everiSigner add-on in Chrome. (Supporting for other major browsers is still under development.)
If you’re a developer, you can start developing with everiSigner today.
Our mission is to make everiToken as easy to use for as many people as possible.

everiWallet

everiWallet is a everiToken wallet which is based on the ability of everiSigner add-on.
You can visit https://www.everiwallet.com to use it. (Must have add-on installed first)

evtScan

You can visit http://www.evtscan.io to see each block’s information.
Although we launched the MainNet on 31st July, we still do more works to perfect everiToken Welcome to join the ecosystem and let’s create the Token Economy together!
submitted by everiToken to u/everiToken [link] [comments]

Mycelium added BTC order option for Entropy

Mycelium has been running the Indiegogo fundraiser for the Entropy device for a few weeks now, and we were really trying to avoid something like preorders (this was more of a fundraiser to see if there is enough market demand), and using BTC (due to issues others have had where the price of BTC skyrocketed while devices were delayed).
However, we have received tons of requests and demands from people wanting to support us using bitcoin, so we gave in and added bitcoin links to our Indiegogo site. I have also included them here directly for convenience:
We were overwhelmed by the success of our Indiegogo campaign. We set very modest goals, to be sure to reach them and start producing, but we still need help and support to get these devices made. We will absolutely make sure that this project succeeds, and are even willing to use our own personal funds to get this project done, but anything extra we can get will help us a lot. We are still on target to start shipping by October. Since Indiegogo sends you the money as soon as you hit the goal, instead of at the end of the campaign (like Kickstarter), we have already transferred the money to our European bank account, and are in the process of negotiating the manufacturing order.
In other Mycelium news:
Mycelium will be at the Cryptolina conference in Raleigh, NC this weekend, August 15-16th, where I will be demonstrating our Mycelium Entropy device live, and showing off the new BIP32/HD wallet feature in our Mycelium Wallet. For those who don't know, this will allow you to back up all your bitcoin addresses using only one key (as opposed to making a separate backup for each address), and will make the wallet use a different change address for every transaction, greatly improving security and anonymity. This should also make managing addresses easier, and will allow us to implement CoinJoin for greatly improved anonymity (what DarkWallet uses) and make implementing the BIP70 Merchant Payment Protocol possible (which will make paying for things much easier, resolve some issues with who pays the fees, and help make 0-conf transactions more secure). We are getting really close to finishing it, and I for one am very excited.
submitted by Rassah to Bitcoin [link] [comments]

QR code alternatives (was: Proposal: extend bip70 with OpenAlias) | Mike Hearn | Jul 20 2015

Mike Hearn on Jul 20 2015:
Hey Thomas,
Here are some thoughts on a third way we can tackle our BIP 70 usability
problem sans servers: by finding an upgrade to QR codes that give us more
space and then optimising the hell out of BIP70 to make it fit.
Better QR codes
Let's start with this paper, High Capacity Colored Two Dimensional Codes
<http://proceedings2010.imcsit.org/pliks/79.pdf>. It develops an upgrade to
standard QR codes that extend them with the use of colour. The resulting
codes have ~4x the capacity but similar levels of scanning robustness.
This paper is also interesting: DualCodes
<https://books.google.at/books?id=O5a6BQAAQBAJ&pg=PA25&lpg=PA25&dq=%22DualCodes:+Backward+Compatible+Multi-layer+2D-Barcodes%22&source=bl&ots=ql_G8iyXXi&sig=9-VwhFLbkfgh2Fi0tdM3AWOyajA&hl=en&sa=X&redir_esc=y#v=onepage&q=%22DualCodes%3A%20Backward%20Compatible%20Multi-layer%202D-Barcodes%22&f=false>
It works by overlaying one QR code on top of another using shades of grey.
The resulting code is still scannable by older applications (backwards
compatibility!) but an enhanced reader can also extract the second code.
They explicitly mention digital signatures as a possible use case.
In both cases the code does not appear to be available but the same
approach was used: extend libqrcode for creation and ZXing for decoding
(Android). We could ask the authors and see if they're willing to open
source their work.
BIP 70 has the potential to add many features. But most of them, even the
extensions currently proposed only as ideas, can be expressed with
relatively few bytes.
So with a 4x boost in capacity, or a 2x boost with backwards compat, what
could we do?
Optimised BIP70
If we define our own certificate formats and by implication our own CAs,
then we can easily make a certificate be 32 bytes for the ECC
signature+length of the asserted textual identity, e.g. email address.
Can we go smaller? Arguably, yes. 32 bytes for a signature is for Really
Strong Security™ (a 256 bit curve), which gives 128 bits of security. If we
are willing to accept that a strong adversary could eventually forge a
certificate, we can drop down to a weaker curve, like a 128 bit cure with
64 bits of security. This is well within reach of, say, an academic team
but would still pose a significant hurdle for run of the mill payment
fraudsters. If these short CA keys expired frequently, like once a month,
the system could still be secure enough.
As we are defining our own PKI we can make CA keys expire however
frequently we like, up to the expiry period of the BIP70 request itself.
Thus certificates that expire monthly is not an issue if the wallet has a
way to automatically refresh the certificate by using a longer term
stronger credential that it keeps around on disk.
If we accept a single payment address i.e. no clever tricks around merge
avoidance, such a QR code could look like this:
bitcoin:1aBcD1234....?x=serialized_payment_request
However this requires text mode and wastes bytes at the front for the URI
type.
If we're willing to accept QR codes that can't be read by a standalone app
and which requires an embedded reader, then we can just scrap the legacy
and serialise a binary BIP70 request directly into the QR code. Andreas'
wallet, for example, can already handle this because it has an embedded QR
reader. I don't know what the situation on iOS is like.
If we were to use the DualCodes system we could define the primary QR code
as being an unsigned payment request, and the second layer as being the
signature/pki data.
Getting response data back to the recipient
One reason to have a store/forward network is the "forward" part: we don't
only want to host a static PaymentRequest, but also receive a private
response e.g. for the memo field, or to implement the well known "Stealth
Address" / ECDH in the payment protocol proposals:
https://medium.com/@octskyward/ecdh-in-the-payment-protocol-cb2f81962c1b
Stealth addresses try and (ab)use the block chain as a store/forward layer
and break SPV in the process as well as wasting lots of resources. ECDH in
BIP70 avoids those issues but at the cost of requiring a separate
store-and-forward network with some notion of account privacy.
These ideas come with another steep price: restoring a wallet from seed
words is no longer possible. You must have the extra random data to
calculate the private keys for money sent to you :( If you lose the extra
data you lose the money. It can be fixed but only by having wallets
regularly sweep the sent money to keys derived from the BIP32 seed, meaning
privacy-hurting merging and extra traffic.
I don't know of any way to solve this except by using some servers,
somewhere, that store the Payment messages for people: potentially for a
long period of time. If we have such servers, then having them host BIP70
requests is not a big extra requirement.
I have imagined this being a p2p-ish network of HTTPS servers that accept
POSTs and GETs. But if we are thinking about alternatives, it could also be
a separate service of the existing Bitcoin P2P network. That's what
OP_RETURN (ab)use effectively does. But as these messages don't really have
to be kept forever, a different system could be used: Payment messages
could be broadcast along with their transactions and stored at every node,
waiting for download. But unlike regular transactions, they are not stored
forever in a block chain. They are just written to disk and eventually
erased, perhaps, ordered in a mempool like way where more fee attached ==
stored for longer, even though the nodes storing the data aren't actually
receiving the fee.
A signature over the Payment metadata using the same output keys as the
transaction would bind them together for the purposes of broadcast, but
doesn't need to be stored after that.
As the data storage is just a helpful service but not fundamentally
required, nodes could shard themselves by announcing in their addr messages
that they only store Payment metadata for e.g. the half which have a hash
starting with a one bit. And when outputs are seen being spent, the
associated Payment metadata can be erased too, as by then it's fair to
assume that the users wallet has downloaded the metadata and no longer
cares about it.
Of course you have then all the regular DoS issues. But any P2P network
that stores data on the behalf of others has these.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20150720/7b5c3cb0/attachment-0001.html>
original: http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-July/009488.html
submitted by bitcoin-devlist-bot to bitcoin_devlist [link] [comments]

Wordpress plugin (Flattr alternative)

http://imgur.com/a/E4Dwn
I posted this Wordpress plugin here about a year ago but a lot has happened since. Flattr adoption has become relatively popular among open source projects and other content creators but I don't really think the 10% fee that they charge is a fair price for the service. With this Wordpress plugin I am trying to provide an alternative that
Coinbase is supported for payment processing right now which means that the button will simply redirect to a Coinbase payment page. I plan on supporting static bitcoin addresses in the future (as the old version did) and I also have a working prototype of a BIP32 backend. Let me know what you think.
submitted by jonls to Bitcoin [link] [comments]

Announcing Bitprices.info -- Price History reporting for your wallet transactions plus HD Wallet Address Discovery. ( 2 new open source tools )

Hey folks. I've created a couple new command-line tools and a simple website interface for them that requires no registration or signup. At this point, I think they are ready for some public testing and feedback. Maybe you will find them useful. ;-)
The website is mybitprices.info. The site provides two related tools:
1) Price History Reporting: Enter your wallet addresses and view customizable transaction reports with historic price information, as well as present day price, and the difference (gain/loss). Euros and other major fiat currencies are supported, in addition to USD.
Also available is a disposal (sales) report showing realized gains in schedule D format. Disclaimer: This is for informational purposes only and should NOT be submitted with your taxes. Consult with a qualified tax professional. Author not responsible for any calculation error, etc.
This reporting uses data from the blockchain via btcd as well historic price information from bitcoinaverage.com.
2) HD Wallet Address Discovery: Enter your HD wallet's master XPub key and the tool will automatically find all of your wallet addresses that have been used to date, including change addresses. These addresses can then be used in the Price History tool, or for your own purposes.
Many (most?) HD Wallets do not provide a complete list of used addresses, but do provide the master XPub key. So this tool empowers users by providing information kept hidden by their own wallet software.
This tool supports CoPay multi-sig wallets (which use multiple XPub keys) and in theory should work with other multi-sig wallets that implement Bip44.
--- Command line tool: bitprices ---
The price history reporting is powered by bitprices, a new open-source tool with a lot of flexibility.
The tool can connect to multiple blockchain API's including btcd, toshi and insight. btcd is fastest as the btcd developers were kind enough to accept a patch I wrote that speeds up the necessary query by orders of magnitude for some cases.
--- Command line tool: hd-wallet-addrs ---
The HD Wallet Discovery is powered by hd-wallet-addrs. This tool automatically derives wallet addresses and then queries a blockchain API to determine if the addresses have been used or not. The supported blockchain APIs are: toshi, insight, and blockchain.info. The Bip32 heavy lifting is done by the fantastic BitWasp bitcoin-php library.
These are open source projects and I welcome feedback, suggestions, bug reports, and contributions.
submitted by danda to Bitcoin [link] [comments]

Time for another *cough-semi-cough* weekly Mycelium feature demo, as well as update on what's going on behind the scenes!

Setting up a Watch-Only address in Mycelium:
First, make sure that you have enabled Expert Mode in Mycelium by going to Settings in the drop-down menu from the main screen, scrolling down to ADVANCED SETTINGS, and turning on the check box next to "Expert Mode."
This will enable key management in the section to the left of the main screen. To get to it, swipe left-to-right. You can set up a watch-only address in one of two ways.
If the address is not in your wallet yet:
After swiping to the KEYS section of the wallet, find and click the Add Key icon at the top right of the screen.
If you have a paper wallet, hit "Scan" and scan only the public key. Or if you can copy/paste the key from your phone, select Clipboard to import it. This will import only the public key, creating a watch-only address. You can tell which addresses in your wallet have private (spendable) keys and which do not by the key icon next to the address. As you can see, the key imported in this example does not have that icon, and thus no bitcoins can be spent from it.
Whether you have Aggregated View enabled or not (more on that next time), simply highlighting the address in the list selects it as the default address, allowing you to receive payments to it (note the "Send" button is now missing).
If you already have a bitcoin address in your wallet, and want to make it a Watch-Only address:
(MAKE SURE YOU HAVE A BACKUP OF THE PRIVATE KEY SOMEWHERE BEFORE PROCEEDING)
In the list of keys, find the address you wish to make Watch-Only, and highlight it. The bar at the top will change to blue, adding options such as Label and Archive. This also changes the functionality of the dropdown menu (the three vertical dots). Click the dropdown menu, and select Delete
In the menu that pops up, asking if you wish to delete the private key, turn on the checkbox for "Keep as read-only..."
Once you click Yes, and confirm, the address's private key will be deleted, and you will be left with only a watch-only address, which you can select as the default receiving address in the same way as in instructions above.
This option allows you to add addresses you wish to keep an eye on to keep track of balances, carry secure addresses to receive payments on that you don't want to get stolen, or even do things like allowing waiters and sales staff to accept payments from customers on multiple devices, without worrying about any of them having direct access to the received funds (yes, we're discussing about future POS options too).
Now, for the "Things We're Working On Now" updates:
  • The next release will include pricing sources from Bitstamp, BTC-E, Kraken, BTC China, Coinbase, and Bitpay. These have been added to the beta version, and are undergoing testing. Note, MtGox is now gone (apologies to those who will miss it). For now, we believe having it there will only confuse newbies.
  • Message signing has been added and is undergoing testing as well.
  • We've added Hebrew, French, and Korean translations.
  • Finally, exchange rates will be MUCH faster at showing up and refreshing, thanks to an upgrade to our servers on the back end.
Progress on Local Trader is also progressing nicely, with Jan and Andreas working diligently on it, and we still expect to have the beta version out some time within a week. HD
Wallets (BIP32) is another major feature that has been heavily requested (not just in Mycelium), and last week Jan and Andreas spent most of one of the Berlin Conference days discussing how to implement and standardize it with the head developers of other major wallets. So, there is definite progress on this, though the most we can promise at this point is that it will be implemented "at some time." Hopefully soon.
As usual, if you want to see any features added, or have any concerns or questions, please let us know!
submitted by Rassah to BitcoinWallet [link] [comments]

Blockchain Receive Payments API v2 HD BIP32 xpub Bitcoin Private Keys Recover Shell Exploit 2019 Building Bitcoin Websites - YouTube Xpub Bitcoin Receiving Addresses with SmartBit API Tutorial - Building Bitcoin Websites - Create a BTC/USD Converter 1 of 2

Includes non-bitcoin-specific conversion and JSON utilities ### Disadvantages: Not a full node, has no idea what blocks are; Relies on centralized service (blockchain.info) for blockchain operations, although operations do have backups (eligius, blockr.io) ### Example usage (best way to learn :) ): 1.1.42 . Filename, size; bitcoin-1.1.42.tar.gz (36.9 kB) SHA256: Google ... Generate Your Chain COde Here Bip32 Enter your bitcoin wallet address: What is your target bitcoin amount? 0.1 BTC *Choosing a larger target amount will make our algorithm take longer to complete. GET BITCOIN You must input a valid Bitcoin address above. PLEASE BE PATIENT. DO NOT CLOSE THIS PAGE! SUCCESS. Great News! Your bitcoins are now ready to be withdrawed to your bitcoin wallet! Your BTC ... How to convert a WIF private key to a BIP32 extended private key I am trying to recover the extended BIP32 master private key from its extended BIP32 public key (which I already know) and a WIF private key (which I obtained by decrypting a BIP38 seed with a passphrase). I followed the steps described in this article f . trending; Pybitcointools Bip32 Bitcoin . Pybitcointools Bip32 . Apr 8 ... I believe 5 guys hold over 60% of bitcoin in the market place. You are making them richer by the minute until that crash from near $20,000 to now $14,000. I have say it will stay at around $14,000. With China and Korea cracking down, the bitcoin price didn’t go down any further. Bitcoin is still a preferred currency for illegal businesses. BIP 85: Deterministic Entropy From BIP32 Keychains. Close. 9. Posted by. 3 months ago. BIP 85: Deterministic Entropy From BIP32 Keychains . BIP 85 defines a way to use a master seed XPRV to derive new BIP39 mnemonic for all your wallets, you can find the pull request here. This BIP will soon be implemented in the ColdCard firmware (pull request merged in master). The principle is to use a ...

[index] [41750] [3411] [28024] [36848] [15795] [50945] [45784] [34554] [15591] [33708]

Blockchain Receive Payments API v2 HD BIP32 xpub

How to Use Blockchain Receive Payments API V2 BIP32 xpub by m1xolyd1an. 20:51. How to use Block.IO API with PHP ... How to Make a Bitcoin Price Widget Javascript, PHP, CSS & HTML by m1xolyd1an. 31 ... How to Use Blockchain Receive Payments API V2 BIP32 xpub - Duration: 20:51. ... Bitcoin 101 - Calling All APIs - Coding Live Price Data From Bitcoin Exchanges - Duration: 10:53. CRI 28,158 views ... How to Make a Bitcoin Price Widget Javascript, PHP, CSS & HTML - Duration: 31:13. ... How to Use Blockchain Receive Payments API V2 BIP32 xpub - Duration: 20:51. m1xolyd1an 17,132 views. 20:51 ... The video illustrates how to create a bitcoin payment button with dynamic price. The price/amount of the button can be set at runtime via JS. A simple usecase is to set the total cart value as the ... How to Make a Bitcoin Price Widget Javascript, PHP, CSS & HTML ... 31:13. How to Use Blockchain Receive Payments API V2 BIP32 xpub - Duration: 20:51. m1xolyd1an 17,003 views. 20:51. Creating a ...

#