Download bitcoin core

Point that we're recording this, the new Bitcoin Core release has not actually been released yet.Bitcoin Core 22 has not actually been released yet.But by the time this episode is released, then maybe Bitcoin Core 22 is released as well.And otherwise, it will be released very soon, right?Sjors: 00:02:41That's right.There's now a third release candidate out.Aaron: 00:02:44So that means basically any day now, at the point of recording at least.And maybe, like I said, maybe it's out by the time this episode is released.So anyways, we're going to highlight some of the improvements compared to Bitcoin core 21 essentially and bitcoin core 21.1. Was there a bitcoin core 21.2 as well?I don't think so.Sjors: 00:03:09I think there's one in progress.Aaron: 00:03:11Right exactly yeah there's one coming as well.So we're gonna give a short overview of the most notable changes, right?Sjors: 00:03:22Yeah, exactly.So usually the last version digit, those changes are very small.They're usually bug fixes and those kind of things.So the release we're talking about now is a big one.Aaron: 00:03:32They're either very small or they're a protocol upgrade.Sjors: 00:03:36Right.So in this case, it's a bit more complicated because it's small fixes and taproot that go into 0.21.1 and also probably in 0.21.2.Hardware Wallet Support in the GUIAaron: 00:03:47So let's get to Bitcoin Core 22.That's what the episode is about.I think the main, the most notable change, the biggest change, and I think you'll agree with that because you worked on it, so you're biased, is hardware wallet support, the HWI, right?Sjors: 00:04:06I think that's a pretty cool change.I don't know if it's the biggest change.I'm definitely very happy with it.Yeah, so basically if you download Bitcoin Core 22 and then also download HWI, which we talked about in episode 30, which is just a Python script that connects to all sorts of different hardware wallets essentially using their drivers.Then I think you just have to change one setting which is to tell it where you put the HWI script and then once you've done that you just insert your hardware wallet you say to Bitcoin core give me a

New wallet and it'll say "oh do you want to use a trezor, ledger whatever you've just inserted" and it'll just work to him like any other wallet except that your wallet your hardware device will now show on screen "hey do you want to prove this transaction" so that's pretty cool I think.Aaron: 00:05:01Right, but am I understanding you correctly that it does not work out of the box?You can't only download Bitcoin Core 22, you also need to download the HWI.Sjors: 00:05:11Correct.Aaron: 00:05:12Which is a separate software package.Sjors: 00:05:14Yeah, It's a Python library and you know because it contains all the stuff from the hardware manufacturers and it communicates with USB so it is potentially a can of worms and so we don't want to put it in Bitcoin Core for everybody.Maybe one day will be but I think it'll be a while because just including USB drivers into Bitcoin Core sounds a bit scary.Aaron: 00:05:35Right.So for now it's like an add-on.Sjors: 00:05:38Yes.But like I said, pretty easy to install.You download it, put it somewhere, point to it, and that's it.Aaron: 00:05:44Hardware wallets were already supported by Bitcoin Core though, right?Sjors: 00:05:48Indirectly, yes.You could use HWI already, but you had to use it from the command line yourself.And actually HWI also came with a graphical tool, so you could actually use it somewhat you know reasonably, but I think this is much easier now.It's just right into the Bitcoin Core interface.Bitcoin Core InterfaceAaron: 00:06:08Yeah, no one uses the command line, sure.So only a couple of Bitcoin Core developers themselves use that stuff.Regular people.Sjors: 00:06:16A surprising number of Bitcoin Core developers use the graphical interface too and it's especially because coin selection is just a lot easier to do if you want to decide which coins you want to spend using a graphical interface you just click on them whereas with a command line it's horrible, you have to copy paste the transaction hash and the identifier, etc.Which Hardware Wallets are SupportedAaron: 00:06:37Right.So, which hardware wallets are supported?Sjors: 00:06:41Off the top of my head, whatever HWI supports.So, that is

Run NBitcoin-Google-Colab NOTE WE HAVE DETECTED SOME FAKE COPAY WALLETS ON THE GOOGLE PLAY STORE FOR ANDROID, PLEASE BE SURE TO INSTALL "BITPAY WALLET" ONLY FROM THE APP STORES. APP's DEVELOPER SHOULD BE "BITPAY INC" ONLYBitpay Wallet (formerly Copay) is a secure Bitcoin, Bitcoin Cash, Ethereum and ERC20 wallet platform for both desktop and mobile devices. Bitpay Wallet uses Bitcore Wallet Service (BWS) for peer synchronization and network interfacing.Binary versions of Bitpay Wallet are available for download at: project was created by BitPay Inc, and it is maintained by BitPay and hundreds of contributors.Main FeaturesBitcoin, Ethereum, Bitcoin Cash and XRP supportMultiple wallet creation (BTC, BCH and ETH) and management in-appIntuitive, multisignature security for personal or shared walletsEasy spending proposal flow for shared wallets and group paymentsBIP32 Hierarchical deterministic (HD) address generation and wallet backupsDevice-based security: all private keys are stored locally, not in the cloudSupport testnet wallets for all supported coins.Synchronous access across all major mobile and desktop platformsPayment protocol (BIP70-BIP73) support: easily-identifiable payment requests and verifiable, secure bitcoin paymentsSupport for over 150 currency pricing options and unit denomination in BTCMnemonic (BIP39) support for wallet backupsPaper wallet sweep support (BIP38)Email for payments, transfers, confirmations, etc.Push notifications (only available for ios and android versions)Customizable wallet naming and background colorsMultiple languages supportedSee more details and download links at specific featuresBitcoinSegwit and native segwit addresses (BECH32) for sending and receivingCPFP (Child pays for parent) transaction acceleration (available after 4 hours of unconfirmed TXs).Transaction fee adjustment using 4 preset levels (using bitcoin-core estimations) OR