Bitcoin Wiki - User contributions [en]

Block chain

2024-01-30T05:39:21Z

Tokenview: add https://tokenview.io into blockchain explorer list

[[File:blockchain.png|thumb|Blocks in the main chain (black) are the longest series of blocks that go from the genesis block (green) to the current block. Purple blocks are blocks that are not in the longest chain and therefore not used.]]

A '''block chain''' is a transaction database shared by all [[Node|nodes]] participating in a system based on the Bitcoin protocol. A full copy of a currency's block chain contains every [[transaction]] ever executed in the currency. With this information, one can find out how much value belonged to each [[address]] at any point in history.

Every [[Blocks|block]] contains a [[hash]] of the previous block. This has the effect of creating a chain of blocks from the [[genesis block]] to the current block. Each block is guaranteed to come after the previous block chronologically because the previous block's hash would otherwise not be known. Each block is also computationally impractical to modify once it has been in the chain for a while because every block after it would also have to be regenerated. These properties are what make bitcoins transactions [[Irreversible Transactions|irreversible]]. The block chain is the main innovation of Bitcoin.

Honest generators only build onto a block (by referencing it in blocks they create) if it is the latest block in the longest valid chain. "Length" is calculated as total combined difficulty of that chain, not number of blocks, though this distinction is only important in the context of a few potential attacks. A chain is valid if all of the blocks and transactions within it are valid, and only if it starts with the genesis block.

For any block on the chain, there is only one path to the genesis block. Coming from the genesis block, however, there can be forks. One-block forks are created from time to time when two blocks are created just a few seconds apart. When that happens, generating nodes build onto whichever one of the blocks they received first. Whichever block ends up being included in the next block becomes part of the main chain because that chain is longer. More serious forks have occurred after fixing bugs that required backward-incompatible changes.

Blocks in shorter chains (or invalid chains) are not used for anything. When the bitcoin client switches to another, longer chain, all valid transactions of the blocks inside the shorter chain are re-added to the pool of queued transactions and will be included in another block. The reward for the blocks on the shorter chain will not be present in the longest chain, so they will be practically lost, which is why a network-enforced 100-block maturation time for generations exists.

These blocks on the shorter chains are often called "orphan" blocks. This is because the generation transactions do not have a parent block in the longest chain, so these generation transactions show up as orphan in the listtransactions RPC call. Several pools have misinterpreted these messages and started calling their blocks "orphans". In reality, these blocks have a parent block, and might even have children.

Because a block can only reference one previous block, it is impossible for two forked chains to merge.

It's possible to use the block chain algorithm for non-financial purposes: see [[Alternative chain]].

The block chain is broadcast to all nodes on the networking using a flood protocol: see [[Block chain download]].

== Time chain ==

[[Satoshi]] actually used the term time chain.<ref>[https://cryptoinsider.media/timechain-satoshis-original-vision-blockchain-bitcoin/ Timechain is Satoshi's Original Vision for Blockchain and Bitcoin, Crypto Insider], by Vlad Costea</ref> Only at a later point the word ''blockchain'' became in widespread use, but mostly by promoters of [[altcoin]]s and consulting agencies marketing their services to big corporations and governments.

== Blockchain nonsense ==

Blockchain is touted as a magical fairy dust solution that you can sprinkle over a problem and end up with an amazing solution. ICOs have perfected this art (often combining it with other buzz words like IoT and AI) and raised billions of dollars to deliver virtually nothing. If someone comes to you talking about a blockchain project: run if you don't know them. If they're a friend or family, explain to them that it's nonsense to use a blockchain without strong [[proof of work]] and an adequately decentralized network of nodes. 

[[Category:Technical]]
[[Category:Vocabulary]]

==See Also==
*[http://bitcoinproperly.org/ The real value of bitcoin and crypto currency technology - The Blockchain explained]

* [https://bitupper.com/en/explorer/bitcoin Bitupper Explorer] - Clean and fast web-based Bitcoin blockchain explorer
* [https://bitcoinchain.com BitcoinChain.com] - Bitcoin Live Platform that provides Block Explorer Service
* [[BlockChain.info]] - Utility site and [[EWallet]] provider of similar name
* [https://tokenview.io Tokenview] - A Web based Blockchain Explorer
* [[BlockTrail.com]] - Advanced API and Block Explorer for Bitcoin
* [[Coinprism.info]] - Web based blockchain explorer for bitcoin and colored coin
* [[Biteasy|Biteasy.com]] - Web based blockchain explorer
* [http://www.blockr.io Blockr.io] - Web based blockchain explorer
* [https://bchain.info bchain.info] - Block Explorer for Bitcoin
[[ru:цепочка блоков]]

Block chain browser

2024-01-30T05:33:21Z

Tokenview: add https://tokenview.io into blockchain explorer list

==Block Explorer==

A Blockchain Explorer is a web application to view and query [https://en.bitcoin.it/wiki/Block blocks] <ref>Blockchain for dummies p 99 - Tiana Laurence - ISBN 978-1119365594</ref> working as a [https://en.bitcoin.it/wiki/Web_browser web browser] that is not connected to the internet, like Google Chrome, but to the [https://en.bitcoin.it/wiki/Blockchain Blockchain]. Their primary function is to allow everyone with an internet connection to track in real-time all the [https://en.bitcoin.it/wiki/Transaction_confirmation transactions] or interactions made by each [https://en.bitcoin.it/wiki/Cryptocurrency cryptocurrencies] holders, regardless of his or her level of knowledge and expertise. <ref>Blockchain Enabled Application p.21 - David Metcalf - ISBN 978-1484230800</ref>. However, although there are plenty of Explorer available, only a tiny minority are able to show the transaction using [https://en.bitcoin.it/wiki/Segregated_Witness SegWit] (Bitcoin bech32 addresses start with “bc1”) <ref>Blockchain: A Practical Guide to Developing Business, Law, and Technology Solutions 1st Edition p.19- Joseph J. Bambara - ISBN 978-1260115871</ref>

==The default view==

The default view in the main page generally provides in real time information about of all the last blocks that are being added to the blockchain, most often separated into six columns with this following informations:

'''Block height:''' <ref>Mastering Bitcoin p.28 - Andreas M. Antonopoulos - ISBN 978-1491954386</ref> block number since the Bitcoin [https://en.bitcoin.it/wiki/Genesis_block genesis block] was [https://en.bitcoin.it/wiki/Mining mined]. Each new mined block assumes an increase of one at the height of the block. Thus, the number 492800 in this column means this is the 492800th block mined in the whole history.

'''Age:''' the moment when the block was accepted by a miner and not when the user initiated a payment or transfer to another wallet.

'''[https://en.bitcoin.it/wiki/Transaction_confirmation Confirmation]:''' The most relevant information visible at a glance, the transaction status. If a transaction is «unconfirmed» or «pending», that means the transaction is in the Blockchain, but has not included in a block yet. In average, it takes typically 10 minutes for a bitcoin transaction to be confirmed. It will take about one hour to get «confirmed» by six confirmations.

'''Transaction list (TX):''' number of transactions included in the block. <ref>Blockchain: A Practical Guide to Developing Business, Law, and Technology Solutions 1st Edition p.18- Joseph J. Bambara - ISBN 978-1260115871</ref>

'''Reward:''' the reward for those (miners) who mined the block.

'''Mined by:''' name of the miner who mined this block. Usually a pool of miners who had been involved in.

'''Size:''' size of the transaction obtained by adding the sizes of each transactions included in the block. This data is always provided in bytes.

==The browser==

In the same way as with an Internet browser, the user needs to enter a request to begin his search. It can be a transaction hash or TXID <ref>beginning-blockchain-guide-building-solutions p.278 - Bikramaditya Singhal - ISBN 978-1484234433</ref>(sequence of 64 characters hexadecimal (0 to 9 and a to f) numbers used to uniquely identify a particular transaction) or a block height for example. Automatically, a page containing all the details about the transaction is loaded according to the request. Advanced information contains all the movements in this transaction and is only available at the user's request. Most of the time, a bitcoin transaction has several input and output [https://en.bitcoin.it/wiki/Bitcoin_address addresses] insofar as it allows a sender to save time and money by sending to several addresses at once. All the following data will be displayed:

'''TXID:''' as mentioned above

'''Input:''' transaction inputs are pointers to UTXO <ref>Blockchain Enabled Application p.18 - David Metcalf - ISBN 978-1484230800</ref>. They point to a specific UTXO by reference to the transaction hash and sequence number where the UTXO is recorded in the blockchain.

'''Output:''' contains instructions for sending bitcoins <ref>Blockchain Enabled Application p.18 - David Metcalf - ISBN 978-1484230800</ref>.

'''Value:''' the number of Satoshi (1 BTC = 100,000,000 Satoshi) that this output will be worth when claimed.

'''ScriptPubKey:''' the second half of a script. There can be more than one output. Because each output from one transaction can only ever be referenced once by an input of a subsequent transaction, the entire combined input value needs to be sent in an output if the user doesn't want to lose it. <ref>beginning-blockchain-guide-building-solutions p.201-202 - Bikramaditya Singhal - ISBN 978-1484234433</ref> If the input is worth 50 BTC but a consumer only want to send 25 BTC, Bitcoin will create two outputs worth 25 BTC. This section is divided into two parts. The first, the top line, showing the total amount that the recipient has to receive in BTC, known as the destination. And the other part, below, showing the amount of bitcoins back to the user that remains in the wallet and which can be used as a new input in a subsequent transaction. Any input bitcoins not redeemed in an output is considered a transaction fee.

'''Transaction Fees:''' most transactions include transaction fees, which compensate the bitcoin miners for securing the network. Transaction fees serve as an incentive to include (mine) a transaction into the next block and also as a disincentive against “spam” transactions or any kind of abuse of the system, by imposing a small cost on every transaction. Transaction fees are collected by the miner who mines the block that records the transaction on the blockchain. <ref>Mastering Bitcoin p.127 - Andreas M. Antonopoulos - ISBN 978-1491954386</ref>

'''Coinbase Data:''' This field must be between 2 and 100 bytes. Except for the first few bytes the rest of the coinbase data can be used by miners in any way they want; it is arbitrary data. In the genesis block, for example, Satoshi Nakamoto added the text “The Times 03/Jan/ 2009 Chancellor on brink of second bailout for banks” in the coinbase data, using it as a proof of the date and to convey a message. Currently, miners use the coinbase data to include extra nonce values and strings identifying the mining pool. <ref>Mastering Bitcoin p.225 - Andreas M. Antonopoulos - ISBN 978-1491954386</ref>

==List of blockchain explorers==

Unless otherwise noted, all explorers support segwit addresses.

* https://mempool.space Open-source Bitcoin Explorer
* https://bitaps.com
* https://mempool.ninja Development version of mempool.space
* https://blockstream.info/ Uses Esplora
* https://bitcoinchain.com
* https://bitinfocharts.com/bitcoin
* https://blockchain.info
* https://blockchair.com/
* https://btcscan.org/
* https://bitcoinexplorer.org
* https://btc.com/
* https://tokenview.io
* https://chain.so/BTC
* https://chainz.cryptoid.info/btc
* https://explorer.bitcoin.com/btc
* https://insight.bitpay.com
* https://live.blockcypher.com/btc
* https://blockpath.com/
* https://cryptomus.com/explorer
* https://www.blockonomics.co
* https://www.smartbit.com.au
* https://blockexplorer.one
* https://yogh.io/landing/
* https://be.anyone.eu.org - local [https://bitcoinexplorer.org/ BitcoinExplorer] instance

==References==
<references />

Bech32 adoption

2024-01-30T05:27:43Z

Tokenview: add https://tokenview.io into blockchain explorer list

[[Bech32]] is a bitcoin [[address]] format specified by [[BIP 0173]]. It is used for the native segwit version 0 output types, P2WPKH and P2WSH. The upcoming [[Taproot]] softfork will add another output type called Pay to Taproot (P2TR). P2TR outputs and future native segwit versions will be using an updated variant of [[Bech32]], called [[Bech32m]] (specified by [[BIP 0350]]). This page tracks the adoption of [[Bech32]] and [[Bech32m]].

Ideally wallets and services would first support ''sending to'' new addresses. When most wallets and services support sending to the new address type, people are more likely to adopt it for receiving.

The amount of bech32 addresses on the blockchain is tracked on this website: https://p2sh.info/dashboard/db/bech32-statistics?orgId=1

{| class="wikitable"
|-
| {{No}} ||
|-
| {{Evaluating|??}} || Maybe / Haven't checked / placeholder
|-
| {{Planned}} || The developers said they plan to
|-
| {{Acceptable|PR Merged}} || In the case of software, code has been written and merged, and it will be in next release.
|-
| {{Yes}} || Feature has been released
|}

=== Software Wallets ===
{| class="wikitable sortable"
|-
! Name !! Send to Bech32 !! Receive to P2WPKH/P2WSH !! Send to Bech32m !! Receive to P2TR !! Notes
|-
| Armory || {{Yes}} || {{No}} || {{Planned|Planned around activation}} || {{Evaluating|??}} ||
|-
| AQUA || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| bcoin || {{Yes}} || {{Yes}} || {{Yes|Since 2.2.0}} || {{Evaluating|??}} ||
|-
| Bisq || {{Yes}} || {{Yes}} || {{Evaluating|Dependent on BitcoinJ}} || {{Evaluating|??}} || As of v1.5.0 https://bisq.network/blog/bisq-v1.5.0-highlights/
|-
| Bitcoin Core || {{Yes|Since 0.16.0}} || {{Yes|Since 0.16.0}} || {{Yes|Since 0.21.1}} || {{Yes|Since 22.0}} || Uses P2WPKH as default address since version [https://bitcoin.org/en/release/v0.20.0 0.20.0]. Creating P2TR addresses requires manual import for now.
|-
| Bitcoin Knots || {{Yes|Since 0.16.0}} || {{Yes|Since 0.16.0}} || {{Yes|Since 0.21.1}} || {{Yes|Since 22.0}} ||
|-
| Blockstream Green || {{Yes}} || {{Yes}} || {{Yes|Since Mobile 3.7.6+, Desktop 1.0.4+}} || {{Planned|Planned}} || Bech32m sending support as of [https://github.com/Blockstream/gdk/releases/tag/release_0.0.47 GDK 0.0.47]
|-
| Breadwallet || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || https://www.reddit.com/r/BRDapp/comments/9xx1hq/as_of_today_brd_fully_supports_native_segwit/
|-
| [https://play.google.com/store/apps/details?id=de.schildbach.wallet Bitcoin Wallet for Android] || {{Yes}} || {{Yes}} || {{Yes|Since 9.0}} || {{No}} || Tested as of v9.20 (October 2022)
|-
| BlueWallet || {{Yes}} || {{Yes}} || {{Yes|Since 6.2.14}} || {{No}} || Tested as of v6.3.1 (October 2022)
|-
| Breez || {{Yes}} || {{Yes}} || {{Yes}} || {{Acceptable|Yes, via the dev console}} || https://github.com/breez/breez/pull/209
|-
| BTC.com || {{No}} || {{No}} || {{No}} || {{No}} || wallet discontinued: https://wallet.btc.com/#/announcement
|-
| [https://github.com/unchained-capital/caravan Caravan] || {{Yes}} || {{Yes}} || {{Planned}} || {{Evaluating|??}} ||
|-
| Casa || {{Yes}} || {{No}} || {{Yes}} || {{Planned}} ||
|-
| C-Lightning || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} ||
|-
| Coinomi || {{Yes}} || {{Yes}} || {{No}} || {{No}} || Tested as of v1.26.0 (October 2022)
|-
| [https://edge.app Edge] || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned}} || https://twitter.com/thedavidcoen/status/1696526932815523957
|-
| Electrum || {{Yes}} || {{Yes}} || {{Yes|Since 4.1.0}} || {{Planned|Planned: Descriptor-based keypath spends}} || https://github.com/spesmilo/electrum/issues/7544
|-
| Exodus || {{Yes}} || {{Yes}} || {{Yes}} || {{No|Not yet planned}} || https://support.exodus.com/article/1480-bitcoin-faqs-learn-more-about-btc#
|-
| Fully Noded || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes|Since v0.2.26}} || https://twitter.com/FullyNoded/status/1438652812410298370
|-
| Guarda Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{No|Currently not planned}} || [https://twitter.com/GuardaWallet/status/1194270398730448896 twitter announcement]
|-
| Iris Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/cryptoquick/status/1585187190627528710
|-
| JoinMarket || {{Yes}} || {{Yes}} || {{Yes|Since v0.9.5}} || {{Evaluating|??}} ||
|-
| Liana || {{Yes}} || {{Yes}} || {{Yes}} || {{No}} || https://twitter.com/KLoaec/status/1685291936549044224
|-
| LND || {{Yes}} || {{Yes}} || {{Yes|Since v0.15}} || {{Yes|Since v0.15}} || The coming LND v0.15 release will introduce full P2TR support including scriptpath spends, PSBT signing, and a MuSig2 API.
|-
| Muun || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/MuunWallet/status/1459294066135474177
|-
| Mycelium || {{Yes}} || {{Yes}} || {{No}} || {{No}} || Bech32m not supported as of version 3.16.0.13, tested on October 12th, 2022. https://github.com/mycelium-com/wallet-android/issues/645
|-
| Nunchuk || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/nunchuk_io/status/1511365917808103426
|-
| Phoenix || {{Yes}} || {{Yes}} || {{Evaluating|Support in iOS, but not Android}} || {{No}} ||
|-
| Samourai Wallet || {{Yes}} || {{Yes}} || {{Yes|Since v0.99.98}} || {{No|Currently not planned}} || https://twitter.com/SamouraiWallet/status/1415788631491497985?s=20
|-
| Sparrow Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/SparrowWallet/status/1415632270434705408
|-
| Specter Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/_benkaufman/status/1431293856675508228
|-
| Trust Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{No|Not planned}} || https://github.com/trustwallet/wallet-core/releases/tag/2.6.5, https://twitter.com/catenocrypt/status/1520152930065817601
|-
| Uniblow || {{Yes}} || {{Yes}} || {{Yes | Since v1.2.2}} || {{No|Not yet planned}} || [https://github.com/bitlogik/uniblow/releases/tag/v1.2.2 release1.2.2]
|-
| Wallet of Satoshi || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/walletofsatoshi/status/1459782761472872451
|-
| Wasabi Wallet || {{Yes}} || {{Yes}} || {{Yes | Since Wasabi 2.0}} || {{Planned|Planned: via NBitcoin}} || https://twitter.com/NicolasDorier/status/1413693010236170241 <br> https://mempool.space/testnet/tx/05a23151b6ad114fb71e851147861d6c992a438ad4f62d6f0749bc9f200ef254
|}

=== Hardware Wallets ===

Hardware wallet manufacturers typically publish a web wallet or browser add-on wallet for use with their hardware. Users can also sometimes connect their hardware wallet to a software wallet like [[Electrum]].

{| class="wikitable sortable"
|-
! Name !! Send to Bech32 !! Receive to P2WPKH/P2WSH !! Send to Bech32m !! Receive to P2TR !! Notes
|-
| Trezor + Trezor Suite || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || since [https://blog.trezor.io/trezor-suite-and-firmware-updates-december-2021-d1e74c3ea283 Trezor Suite 21.12.2] + Trezor Firmware 1.10.4 (Model One) / 2.4.3 (Model T)
|-
| Ledger Live (desktop app) || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || Ledger Live Desktop 2.35 + Bitcoin App 2.0.0, Ledger Live Mobile support TBD. https://blockstream.info/tx/41d46e6f6e58a325eb6c913aa603f4db313f4a1db0649952f06fe2cd70546451
|-
| KeepKey chrome app || {{No}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| BitBox Desktop app || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/_benma_/status/1504455969631350792
|-
| Trezor + Electrum || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned}} ||
|-
| Ledger + Electrum || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| BitBox + Electrum || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/_benma_/status/1504458280000761857
|-
| KeepKey + Electrum || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Archos + Electrum || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Coldcard + Electrum || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://blog.coinkite.com/edge-firmware/
|-
| Ballet + app || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| SeedSigner || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/KeithMukai/status/1750547895994982906
|-
| Tangem + app|| {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Blockstream Jade + Blockstream Green || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned|Planned}} || Bech32m sending support as of [https://github.com/Blockstream/gdk/releases/tag/release_0.0.47 GDK 0.0.47] available via Blockstream Green mobile apps 3.7.6+ and desktop app 1.0.4+
|-
| Keystone || {{Yes}} || {{Acceptable|Yes, but only with BTC-only firmware}} || {{Planned|Planned for Q1 2022}} || {{Evaluating}} || https://twitter.com/KeystoneWallet/status/1460110906789031938
|-
| Foundation Passport || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned|Planned}} || https://twitter.com/ShrtCrct6102/status/1661102603810250761
|}

=== Web Wallets / Wallet Service Providers ===

{| class="wikitable sortable"
|-
! Name !! Send to Bech32 !! Receive to P2WPKH/P2WSH !! Send to Bech32m !! Receive to P2TR !! Notes
|-
| Bitcoin Beach Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{No}} || https://twitter.com/nicolasburtey/status/1556659398365401088
|-
| [https://coin.space Coin Wallet] || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| BitGo || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || Full native segwit support on v2 platform, no plans to add native segwit support on v1 platform. Also see: https://blog.bitgo.com/native-segwit-addresses-via-bitgos-api-4946f2007be9, Taproot: https://blog.bitgo.com/taproot-support-for-bitgo-wallets-9ed97f412460
|-
| [https://bitmask.app BitMask Wallet] || {{Yes}} || Taproot Only || {{Yes}} || {{Yes}} || https://twitter.com/cryptoquick/status/1685061519653076992
|-
| Bitnob || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/bernard_parah/status/1469962690483400706
|-
| blockchain.com web|| {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/Pellicceama/status/1563171639063629828
|-
| Fireblocks || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned|Planned for 2022}} ||
|-
| HolyTransaction || {{Yes}} || {{No}} || {{Yes}} || {{Evaluating|??}} ||
|-
| [https://coinb.in Coinb.in] || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || open source JavaScript implementation
|-
| Guarda Wallet || {{Yes}} || {{Yes}} || {{Yes}} || {{No|Currently not planned}} || https://twitter.com/GuardaWallet/status/1194270398730448896
|}

=== Exchanges ===



{| class="wikitable sortable"
|-
! Name !! Send to Bech32 !! Receive to P2WPKH/P2WSH !! Send to Bech32m !! Receive to P2TR !! Notes
|-
| [[AgoraDesk]] || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} ||
|-
| Anycoin Direct || {{Yes}} || {{No}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/AnycoinDirect/status/1691731011447464135
|-
| Binance || {{Yes}} || {{Yes}} || {{No}} || {{No}} || https://twitter.com/colemaktypo/status/1460337599499882502
|-
| Bitaroo || {{Yes}} || {{Yes}} || {{Yes}} || {{No}} ||
|-
| BitBargain.co.uk || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Bitcoin.de || {{Yes}} || {{No}} || {{No}} || {{No}} || https://twitter.com/Ben_deWaal/status/1460464528181936130
|-
| Bitfinex || {{Yes}} || {{No}} || {{Planned}} || {{No}} || https://twitter.com/paoloardoino/status/1460620727342796800
|-
| BitMEX || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/BitMEXResearch/status/1492152557044654082
|-
| Bitonic || {{Yes}} || {{Evaluating|??}} || {{No}} || {{Evaluating|??}} || https://twitter.com/BitcoinenNL/status/1460284373291384833
|-
| Bitpanda || {{Yes}} || {{Evaluating|??}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/christiant5r/status/1461369956252139520
|-
| Bittrex || {{No}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://www.reddit.com/r/Bitcoin/comments/gqt1m6/bittrex_does_not_even_support_withdrawals_to/
|-
| Bittylicious || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://twitter.com/Bittylicious_/status/998881327347888128
|-
| Bitstamp || {{Yes}} || {{Yes}} || {{Planned}} || {{Evaluating|??}} || https://www.bitstamp.net/article/weve-added-support-bech32-bitcoin-addresses-bitsta/
|-
| Bitso || {{Yes}} || {{No}} || {{Yes}} || {{Evaluating|??}} ||
|-
| Bitwage || {{Evaluating|??}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Bitwala || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Bitypreço || {{Yes}} || {{Yes}} || {{Yes}} || {{No}} ||
|-
| Bottlepay || {{Yes}} || {{Yes}} || {{No}} || {{Evaluating|??}} || https://help.bottlepay.com/en/articles/4909780-what-bitcoin-addresses-do-you-support-for-on-chain-withdrawals, https://twitter.com/Stack_Russel_UK/status/1460330265751044097
|-
| BSDEX || {{Yes}} || {{No}} || {{No}} || {{No}} || https://www.bsdex.de/en/faq/#deposit-and-withdrawal-options-which-cryptocurrency-address-formats-are-supported-in-bsdex
|-
| Bull Bitcoin || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned}} || https://twitter.com/francispouliot_/status/1464264391155666950
|-
| CardCoins.co || {{Yes}} || No deposits || {{Yes}} || No deposits || https://twitter.com/CardCoinsCo/status/1452680654030872589
|-
| CEX.IO || {{No}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Coinbase.com || {{Yes}} || {{No}} || {{No|Not a priority currently}} || {{No}} ||
|-
| CoinCorner || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/CoinCorner/status/1461360995746545667
|-
| CoinFalcon || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| [https://coinmate.io Coinmate.io] || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://coinmate.io/cz/taproot-revolucni-upgrade-bitcoinu/
|-
| Coinsbank.com || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Coinygram || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Flyp.me || {{Yes}} || {{No}} || {{Yes}} || {{Evaluating|??}} ||
|-
| LedgerX || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || Formerly FTX US Derivatives
|-
| GDax || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://www.reddit.com/r/Bitcoin/comments/8c738k/coinbase_gdax_already_allows_sending_to_bc1/
|-
| Gemini || {{Yes}} || {{Yes}} || {{No}} || {{No}} || https://np.reddit.com/r/Bitcoin/comments/b66n0v/psa_gemini_is_full_on_with_native_segwit_and_uses/
|-
| Genesis || {{Evaluating|??}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Globitex || {{No}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| HitBTC || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Hodl Hodl || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || https://medium.com/@hodlhodl/hodl-hodl-segwit-compatible-exchange-a2231968ac56
|-
| Independent Reserve|| {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://www.independentreserve.com/bitcoin/investing
|-
| Itbit || {{Evaluating|??}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Kraken || {{Yes}} || {{No}} || {{Yes}} || {{No}} || https://blog.kraken.com/post/16740/bitcoin-taproot-address-now-supported-on-kraken/
|-
| Liberalcoins || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || https://liberalcoins.com
|-
| [[LocalBitcoins]] || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://twitter.com/LocalBitcoins/status/1322194709159301120
|-
| Luno || {{Yes}} || {{No}} || {{Planned|Planned}} || {{Evaluating|??}} || https://www.luno.com/blog/en/post/luno-launches-support-for-bech32-addresses
|-
| Okcoin || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/Okcoin/status/1471563103049756672
|-
| Paxful.com || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://paxful.com/support/en-us/articles/360011766520-Can-I-Withdraw-Bitcoin-from-Paxful-Wallet-to-My-External-Wallet-
|-
| PeachBitcoin.com || {{Yes}} || {{No}} || {{Yes}} || {{No}} || https://github.com/sbddesign/bech32m-adoption/pull/33
|-
| Purse.io || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| Poloniex.com || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} || https://www.reddit.com/r/Bitcoin/comments/a3jhcf/you_can_now_withdraw_from_poloniex_to_bech32/
|-
| River.com || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} ||
|-
| Robinhood.com || {{Yes}} || {{Evaluating|??}} || {{No}} || {{Evaluating|??}} || https://robinhood.com/us/en/support/articles/cryptocurrency-wallets/#Supportedaddressformatsforcryptowithdrawals
|-
| Square CashApp || {{Yes}} || {{No}} || {{Yes}} || {{Evaluating|??}} || https://cash.app/help/us/en-us/20211114-bitcoin-taproot-upgrade
|-
| StackinSat.com || {{Yes}} || No deposits || {{Yes}} || No deposits || https://twitter.com/StackinSat_FR/status/1500898826416230401
|-
| Strike || {{Yes}} || {{Yes}} || {{Yes}} || {{No}} || https://github.com/sbddesign/bech32m-adoption/pull/29
|-
| Swan || {{Yes}} || No deposits || {{Yes}} || No deposits || https://twitter.com/SwanBitcoin/status/1468318386916663298
|-
| TheRockTrading.com || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || https://twitter.com/TheRockTrading/status/976787499648512003
|-
| VBTC || {{Yes}} || {{Planned}} || {{Yes}} || {{Planned}} || https://twitter.com/VBTC_Vietnam/status/1460978196816416775
|-
| Xapo || {{Yes}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|}

=== Bitcoin ATM Models ===

Hopefully when a model updates then all its ATMs everywhere will gain that feature. See https://coinatmradar.com/shop/buy-bitcoin-atm/

{| class="wikitable sortable"
|-
! Name !! Send to Bech32 !! Receive to P2WPKH/P2WSH !! Send to Bech32m !! Receive to P2TR !! Notes
|-
| Bitaccess BTM || {{Yes}} || {{Yes}} || {{Planned|Work in progress}} || {{Planned}} || https://twitter.com/DylanSeago/status/1520212294898274305
|-
| GenesisCoin || {{No}} || {{No}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| General Bytes || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || Depending on configuration. Since version 20190613 https://www.generalbytes.com/en/support/changelog
|-
| Lamassu || {{Yes}} || {{Yes|Yes (optional)}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/LamassuBTC/status/1459918440303673349
|}

=== Blockchain Explorers ===

To investigate bech32 capability, you can use mainnet TXIDs <code>4ef47f6eb681d5d9fa2f7e16336cd629303c635e8da51e425b76088be9c8744c</code> and <code>514a33f1d46179b89e1fea7bbb07b682ab14083a276979f91038369d1a8d689b</code> or look up the addresses <code>bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq</code> and <code>bc1qc7slrfxkknqcq2jevvvkdgvrt8080852dfjewde450xdlk4ugp7szw5tk9</code>.

Some blockchain explorers can only parse the bech32 address and display it, they don't build an index so users cannot search for bech32 addresses.

To verify bech32m readiness, you can look up the mainnet TXID <code>b10c007c60e14f9d087e0291d4d0c7869697c6681d979c6639dbd960792b4d41</code> on which the first output should be addressed as <code>bc1pqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqsyjer9e</code>. Note that the superseded bech32 encoding only differs in the last six characters that encode the checksum: <code>bc1pqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqszqgpqyqs_3wf0qm_</code>.

See also: https://en.bitcoin.it/wiki/Category:Block_chain_browsers

{| class="wikitable sortable"
|-
! Name !! Display Bech32 !! Index Bech32 !! Display Bech32m !! Index Bech32m !! Notes
|-
| bitaps.com || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://bitaps.com
|-
| Bitflyer || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://chainflyer.bitflyer.jp
|-
| Blockbook || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://btc1.trezor.io
|-
| blockchain.com || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://www.blockchain.com/explorer
|-
| Blockchair || {{Yes}} || {{Yes}} || {{Yes|Ready, but old txns not reindexed yet}} || {{Yes|Ready, but old txns not reindexed yet}} || https://github.com/Blockchair/Blockchair.Support/issues/567#issuecomment-966393097, https://twitter.com/Blockchair/status/1458817396433731585
|-
| Blockcypher || {{Yes}} || {{Yes}} || {{Yes}} || {{No}} || https://live.blockcypher.com/btc
|-
| Blockonomics || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://www.blockonomics.co
|-
| Blockpath || {{Yes}} || {{Yes}} || {{No}} || {{No}} || https://blockpath.com
|-
| BTC.com || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://BTC.com
|-
| Esplora || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || Open source explorer, instances are https://blockstream.info/ and https://www.localbitcoinschain.com/. [https://github.com/Blockstream/esplora/issues/323 Issue] for BIP350 support.
|-
| Insight || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || Open source explorer, instances include https://insight.bitpay.com/
|-
| Mempool || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || Open source explorer, instances include https://mempool.space https://mempool.ninja https://mempool.emzy.de https://mempool.bisq.services https://mempool.bitcoin.ninja https://mempool.bitaroo.net/
|-
| OKLink || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://www.oklink.com
|-
| OXT || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://oxt.me/
|-
| Tradeblock || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned|Yes, but search field rejects bech32m addresses}} || https://tradeblock.com/bitcoin
|-
| WalletExplorer || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://walletexplorer.com/
|-
| Bitcoin Explorer || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://bitcoinexplorer.org, https://twitter.com/BitcoinExplorer/status/1425148093977309187
|-
| BitRef || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://bitref.com
|-
| Tokenview || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://tokenview.io
|}

=== Payment Processors ===



{| class="wikitable sortable"
|-
! Name !! P2WPKH/P2WSH Invoices !! Bech32 Withdrawal addresses !! P2TR Invoices !! Bech32m Withdrawal addresses !! Notes
|-
| [https://apirone.com Apirone] || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || Payment notifications, merchant dashboard, plugins for Magento, WooCommerce, OpenCart 2, Opencart 3.x, Virtuemart
|-
| [https://bitaps.com Bitaps] || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} || Payment forwarding API, Wallet API, fault tolerance callback.
|-
| [https://btcpayserver.org BTCPay Server] || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes|Supported since 1.3.0}} || https://twitter.com/NicolasDorier/status/1432354289599451136, https://twitter.com/NicolasDorier/status/1457527754350415873
|-
| [https://coingate.com CoinGate] || {{No}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| [https://confirmo.net CONFIRMO] || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Evaluating|??}} ||
|-
| [https://cryptochill.com CryptoChill] || {{Yes}} || {{Yes}} || {{Evaluating|??}} || {{Planned}} || Highly customizable Bitcoin and Lightning Network payment gateway and custodial wallets provider. TSS/HD wallets, API, SDK.
|-
| [https://github.com/nickfarrow/SatSale SatSale] || {{Yes}} || n/a || {{Yes}} || n/a || Supports any address format supported by backend Bitcoin Core. Invoices use address format configured as default there. Has no withdrawal functionality in itself, payments are received in Core wallet.
|}

=== Mining Pools ===

{| class="wikitable sortable"
|-
! Name !! Payout to Bech32 !! Payout to Bech32m !! Notes
|-
| [https://pool.btc.com/ BTC.com Pool] || {{No}} || {{Evaluating|??}} ||
|-
| [http://ckpool.org/ Ckpool] || {{Yes}} || {{Evaluating|??}} ||
|-
| [https://kano.is/ KanoPool] || {{Yes}} || {{Evaluating|??}} || [https://bitcointalk.org/index.php?topic=789369.msg53374508#msg53374508 bitcointalk source]
|-
| [https://luxor.tech Luxor Mining] || {{Yes}} || {{Yes}} || [https://twitter.com/LuxorTechTeam/status/1685021778005872641 Tweet]
|-
| [http://poolin.com/ Poolin] || {{Yes}} || {{Evaluating|??}} || [https://bitcointalk.org/index.php?topic=5169994.msg52184844#msg52184844 bitcointalk source]
|-
| [https://sbicrypto.com SBICrypto Pool] || {{Yes}} || {{Acceptable|Ready to release at activation}} ||
|-
| [https://slushpool.com/ Slush Pool] || {{Yes}} || {{Planned|At activation}} || [https://twitter.com/braiins_systems/status/1432376840484794375 Tweet]
|-
| [https://ukrpool.com/ Ukr Pool] || {{Yes}} || {{Evaluating|??}} || [https://bitcointalk.org/index.php?topic=5124825.msg51358033#msg51358033 bitcointalk source]
|-
| [https://pool.viabtc.com/ ViaBTC Pool] || {{No}} || {{Evaluating|??}} ||
|}

=== Libraries ===

{| class="wikitable sortable"
|-
! Name !! Language !! Send to Bech32 !! Receive to P2WPKH/P2WSH !! Send to Bech32m !! Receive to P2TR !! Notes
|-
| [https://github.com/bitcoin/libbase58 libbase58] || C || {{No}} || n/a || {{No}} || n/a
|-
| [https://github.com/MetacoSA/NBitcoin NBitcoin] || .NET || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/NicolasDorier/status/1432354289599451136
|-
| [https://github.com/bcoin-org/bcoin bcoin] || JS || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://github.com/bcoin-org/bcoin/pull/1038
|-
| [https://github.com/btcsuite btcsuite/btcutil] || Go || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} ||
|-
| [https://github.com/bitcoinjs/bitcoinjs-lib bitcoinjs-lib] || JS || {{Yes}} || {{Yes}} || {{Yes|Yes, since v6.0.0}} || {{Yes}} || https://twitter.com/junderwood4649/status/1655457044068196358
|-
| [https://bitcoinj.github.io/ bitcoinj] || Java || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|??}} || https://github.com/bitcoinj/bitcoinj/commit/183986c9801f10f1bf46bd46621e535973d39ef8
|-
| [https://github.com/bitcoin-s/bitcoin-s-core bitcoin-s] || Scala || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned|Planned for 2021}} || https://twitter.com/Chris_Stewart_5/status/1459205497463136270
|-
| [https://github.com/rust-bitcoin/rust-bitcoin rust-bitcoin] || Rust || {{Yes}} || {{Evaluating|??}} || {{Yes}} || {{Evaluating|??}} || https://twitter.com/RCasatta/status/1423695925252329476
|-
| [https://lightningdevkit.org Lightning Dev Kit] || Rust || {{Yes}} || {{Yes}} || {{Yes}} || {{Evaluating|Pending BOLT update}} ||
|-
| [https://bitcoindevkit.org Bitcoin Dev Kit] || Rust || {{Yes}} || {{Yes}} || {{Yes|Yes, since [https://github.com/bitcoindevkit/bdk/releases/tag/v0.14.0 0.14.0]}} || {{Yes|Yes, since [https://github.com/bitcoindevkit/bdk/releases/tag/v0.19.0 0.19.0]}} || P2TR support is "experimental", see [https://github.com/bitcoindevkit/bdk/pull/593 PR #593]
|-
| [https://github.com/ElementsProject/libwally-core libwally-core] || C || {{Yes}} || {{Yes}} || {{Yes|Yes, since [https://github.com/ElementsProject/libwally-core/releases/tag/release_0.8.4 0.8.4]}} || {{Yes|Yes, since [https://github.com/ElementsProject/libwally-core/releases/tag/release_0.8.4 0.8.4]}} ||
|-
| [https://github.com/Blockstream/gdk GDK] || C || {{Yes}} || {{Yes}} || {{Yes|Yes, since [https://github.com/Blockstream/gdk/releases/tag/release_0.0.47 0.0.47]}} || {{Evaluating|??}} ||
|-
| [https://github.com/Simplexum/python-bitcointx python-bitcointx] || Python || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://github.com/Simplexum/python-bitcointx/issues/57
|-
| [https://github.com/dgarage/NBXplorer/ NBXPlorer] || C# || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://twitter.com/NicolasDorier/status/1432354822888431619
|-
| [https://github.com/acinq/bitcoin-kmp Kotlin Multiplatform Bitcoin Library] || Kotlin || {{Yes}} || {{Yes}} || {{Yes}} || {{Planned}} || https://twitter.com/realtbast/status/1458533450919649284
|-
| [https://github.com/libbitcoin Libbitcoin] || C++ || {{Yes}} || {{Evaluating|??}} || {{Yes}} || {{Evaluating|??}} || https://github.com/libbitcoin/libbitcoin-system/blob/master/include/bitcoin/system/wallet/addresses/witness_address.hpp#L41
|-
| [https://github.com/chaintope/bitcoinrb Bitcoinrb] || Ruby || {{Yes}} || {{Yes}} || {{Yes}} || {{Yes}} || https://github.com/chaintope/bitcoinrb/wiki/Taproot
|}


=== References ===

[[Category:Software]]