PayJoin adoption

2024-12-28T23:17:42Z

Saxtron3000: /* Software Wallets */

[[PayJoin]] is a privacy improvement for bitcoin. Payjoin solves the sole privacy problem left open in the [[Bitcoin whitepaper]], that transactions with multiple inputs "necessarily reveal that their inputs were owned by the same owner," because both the sender and receiver of a transfer contribute inputs to the transaction.

[[Transaction surveillance company|Transaction surveillance companies]] heavily depend on the [[Common-input-ownership heuristic|common input ownership assumption]] which is broken by PayJoin transactions. So if those transactions became even a little bit widespread they could massively decrease the reliability of blockchain surveillance. Those who adopt PayJoin would find their privacy improved from strangers analyzing the blockchain. For example a surveillance company spy would find it much harder to figure out which addresses and transactions belonged to a particular merchant that was using PayJoin, or who else transacted to them.

PayJoin transactions can be made indistinguishable from regular bitcoin transactions by design, so it's very hard to get an accurate number for how common they are.

The most widely adopted PayJoin protocol standard is [[BIP 0078]].

{| class="wikitable"
|-
| {{No}} ||
|-
| {{Evaluating}} ||
|-
| {{Planned}} || The developers said they plan to
|-
| {{Weak|Non-BIP78}} || Implements a form of PayJoin but not BIP78
|-
| {{Acceptable|Extension}} || Can PayJoin using additional software
|-
| {{Yes}} || Feature has been released
|}

=== Software Wallets ===
{| class="wikitable sortable"
|-
! Name !! Sending !! Receiving !! Notes
|-
| Armory || {{No}} || {{No}} ||
|-
| bcoin || {{No}} || {{No}} ||
|-
| [https://bitcoindevkit.org/bdk-cli/ BDK-CLI] || {{Acceptable|Live Draft}} || {{Evaluating}} || https://github.com/bitcoindevkit/bdk-cli/pull/156 https://github.com/bitcoindevkit/bdk-cli/issues/149
|-
| Bitcoin Core || {{Acceptable|Extension}} || {{Acceptable|Extension}} || [https://github.com/payjoin/rust-payjoin Beta CLI payjoin-client via RPC], native support [https://github.com/bitcoin/bitcoin/issues/19148 under evaluation]
|-
| Bitcoin Knots || {{Acceptable|Extension}} || {{Acceptable|Extension}} || [https://github.com/payjoin/rust-payjoin Beta CLI payjoin-client via RPC]
|-
| [https://play.google.com/store/apps/details?id=de.schildbach.wallet Bitcoin Wallet for Android] || {{No}} || {{No}} ||
|-
| [https://segwit.bitmask.app/ BitMask] || {{Yes}} || {{No}} || Chrome extension only https://github.com/diba-io/bitmask-core/pull/121
|-
| [https://www.blink.sv Blink (Bitcoin Beach Wallet)] || {{Evaluating}} || {{Evaluating}} || https://twitter.com/nicolasburtey/status/1673760619374280705
|-
| [https://blixtwallet.github.io/ Blixt Wallet] || {{Evaluating}} || {{Evaluating}} || https://t.me/blixtwallet/122197
|-
| Blockstream Green || {{No}} || {{No}} ||
|-
| BlueWallet || {{Yes}} || {{Planned}} || https://old.reddit.com/r/Bitcoin/comments/j6qswf/bluewallet_releases_payjoin_bip78/
|-
| [https://github.com/Bitcoin-Brainbow/Brainbow Brainbow] || {{Evaluating}} || {{Evaluating}} || https://github.com/Bitcoin-Brainbow/Brainbow/issues/98
|-
| Breadwallet || {{No}} || {{No}} ||
|-
| BTC.com || {{No}} || {{No}} ||
|-
| BTCPay Server || {{Yes}} || {{Yes}} || https://docs.btcpayserver.org/Payjoin/
|-
| [https://play.google.com/store/apps/details?id=com.bullbitcoin.mobile&hl=en_US Bull Bitcoin Mobile] || {{Yes}} || {{Yes}} || https://github.com/SatoshiPortal/bullbitcoin-mobile
|-
| Casa || {{No}} || {{No}} ||
|-
| CLN || {{Weak|DFC}} || {{Weak|DFC}} || [https://github.com/ElementsProject/lightning/blob/v23.02/CHANGELOG.md#0100---2021-03-28-neutralizing-fee-therapy dual funded channels] [https://twitter.com/niftynei/status/1585710438461116416 Evaluating BIP 78 support]
|-
| Coinomi || {{No}} || {{No}} ||
|-
| Eclair || {{Weak|DFC}} || {{Weak|DFC}} || [https://github.com/ACINQ/eclair/pull/2275 dual funded channels]
|-
| Electrum || {{Planned}} || {{Planned}} || https://github.com/spesmilo/electrum/issues/6585
|-
| [https://foundationdevices.com/envoy/ Envoy] || {{Evaluating}} || {{No}} || https://github.com/Foundation-Devices/envoy/pull/84
|-
| Fedimint || {{Evaluating}} || {{Evaluating}} || https://github.com/fedimint/fedimint/discussions/1764
|-
| [https://github.com/AreaLayer/FireBolt FireBolt] || {{Planned}} || {{Planned}}
|-
| [https://fullynoded.app Fully Noded] || {{Evaluating}} || {{Evaluating}} || https://github.com/Fonta1n3/FullyNoded/issues/126
|-
| Gordian Wallet || {{Evaluating}} || {{Evaluating}} || https://github.com/orgs/BlockchainCommons/discussions/49
|-
| Guarda Wallet || {{No}} || {{No}} ||
|-
| [https://jamapp.org/ JAM] || {{Planned}} || {{Planned}} || [https://github.com/joinmarket-webui/jam/blob/4d9171e15fe45100dd26db621576739af9b7e012/README.md?plain=1#L74 roadmap] [https://github.com/joinmarket-webui/jam/issues/406 issue]
|-
| JoinMarket || {{Yes}} || {{Yes}} || https://github.com/JoinMarket-Org/joinmarket-clientserver/blob/master/docs/PAYJOIN.md
|-
| [https://wizardsardine.com/liana/ Liana] || {{No}} || {{Evaluating}} || [https://github.com/wizardsardine/liana/issues/534 payjoin for automatic timelock refresh]
|-
| LND || {{Acceptable|Extension}} || {{Acceptable|Extension}} || [https://github.com/chaincase-app/nolooking nolooking bip 78 web app alpha], [https://github.com/alexbosworth/balanceofsatoshis/blob/9f2d32904617088069aa1f930db211711ba415e5/CHANGELOG.md?plain=1#L1494 Non-BIP78 dual funding via BoS]
|-
| [https://mutinywallet.com Mutiny Wallet] || {{Yes}} || {{Evaluating}} || Send [https://njump.me/nevent1qqsrtpdy9jd5r0dpsxcm4y5jw75zdcsgam2ka3shfj6xwu9ddmxlclqp2amhxue69uhkv6tvw3jhytnwdaehgu3wwa5kuef0dec82c33d46hgmnev93kxwt4vv68gdtdd4u8vurswfmhxct4dg6hqvn30pcnjdtkx3snj63sdfuxcwrhde4kvan409ch2efjxdmxwqgdwaehxw309ahx7uewd3hkcqgcwaehxw309aex2mrp0yh8xmn0wf6zuum0vd5kzmqpzpmhxue69uhkummnw3ezuamfdejsz9rhwden5te0wfjkccte9ejxzmt4wvhxjmcpzemhxue69uhhyetvv9ujumn0wd68ytnzv9hxgqguwaehxw309ahx7um5wghx6at5d9h8jampd3kx2apwvdhk6qghwaehxw309ahx7um5wghxvmt59emkj73wvf5h5h30rus released in v0.5.7] receiver [https://github.com/MutinyWallet/mutiny-node/pull/820 in progresss], [https://stacker.news/items/200410 "payer side" PDK evaluation from Mutiny devs], [https://github.com/MutinyWallet/mutiny-node/issues/194 planning issue]
|-
| Mycelium || {{No}} || {{No}} ||
|-
|[https://nunchuk.io/ Nunchuk] || {{Evaluating}} || {{Evaluating}} || https://stacker.news/items/129571
|-
| Phoenix || {{No}} || {{Evaluating}} || [https://github.com/ACINQ/phoenix/issues/161 BIP 78 payjoin issue]
|-
| Samourai Wallet || {{Weak|Cahoots}} || {{Weak|Cahoots}} || https://samouraiwallet.com/stowaway
|-
| Sparrow Wallet || {{Yes}} || {{Weak|Cahoots}} || https://github.com/sparrowwallet/sparrow/releases/tag/0.9.7, https://github.com/sparrowwallet/sparrow/releases/tag/1.5.3
|-
| [https://specter.solutions/desktop/ Specter Desktop] || {{Evaluating}} || {{Evaluating}} || https://github.com/cryptoadvance/specter-desktop/issues/1369
|-
| [https://stackwallet.com Stack Wallet] || {{Evaluating}} || {{Evaluating}} || https://github.com/cypherstack/stack_wallet/issues/445
|-
| [https://trezor.io/trezor-suite Trezor Suite] || {{Evaluating}} || {{Evaluating}} || https://stacker.news/items/174289
|-
| Trust Wallet || {{No}} || {{No}} ||
|-
| [https://lnvortex.com Vortex] || {{Evaluating}} || {{Evaluating}} || https://github.com/ln-vortex/ln-vortex/issues/407
|-
| Wasabi Wallet || {{Yes}} || [ {{Evaluating}} || https://docs.wasabiwallet.io/using-wasabi/PayJoin.html [https://github.com/zkSNACKs/WalletWasabi/pull/3582 receiver draft]
|-
| [https://zeusln.app/ Zeus] || {{Planned}} || {{Planned}} || [https://github.com/ZeusLN/zeus/blob/6f0e4568ce81ae9193ec8c272b0c7ac1299c2e8f/README.md?plain=1#L68 on feature roadmap]
|}

=== Software Libraries ===
{| class="wikitable sortable"
|-
! Name !! Sending !! Receiving !! Notes
|-
| [https://payjoindevkit.org PDK] || {{Yes}} || {{Yes}} || https://github.com/payjoin/rust-payjoin
|-
| [https://bitcoin-s.org/ bitcoin-s] || {{Evaluating}} || {{Evaluating}} || https://github.com/bitcoin-s/bitcoin-s/issues/1362
|}

=== Hardware Wallets ===

{| class="wikitable sortable"
|-
! Name !! Signing !! Notes
|-
| Coldcard || {{Yes}} || Hardware can sign bip78 payjoins and also http://ckbunker.com/
|-
| SeedSigner || {{Yes}} || https://twitter.com/KeithMukai/status/1654235825129893893
|-
| [https://trezor.io/trezor-model-one Trezor Model One] || {{Yes}} || https://stacker.news/items/174289
|-
| [https://trezor.io/trezor-model-t Trezor Model T] || {{Yes}} || https://stacker.news/items/174289
|}

=== Payment processors ===


{| class="wikitable sortable"
|-
! Name !! Receive !! Notes
|-
| [[BTCPay]] || {{Yes}} || First implementer of BIP78 payjoin for merchants.
|-
| [https://satsale.org/ SatSale] || {{Planned}} || https://github.com/SatSale/SatSale/issues/39 https://twitter.com/SatoshiSale/status/1658894420295684096
|}

=== Exchanges ===

P2P exchanges make the most sense as early adoptors of PayJoin. All exchanges are welcome on this list of course.


{| class="wikitable sortable"
|-
! Name !! Send to exchange !! Receive from exchange !! Notes
|-
| [[AgoraDesk]] || {{No}} || {{No}} ||
|-
| Bisq || {{No}} || {{No}} ||
|-
| [https://boltz.exchange/ Boltz] || {{Evaluating}} || {{Evaluating}} || https://stacker.news/items/83396
|-
| [https://www.bullbitcoin.com/ Bull Bitcoin] || {{Planned}} || {{Planned}} || https://twitter.com/francispouliot_/status/1138131827258986499
|-
| Hodl Hodl || {{Planned}} || {{Planned}} || https://twitter.com/hodlhodl/status/1352266122389827584
|-
| LocalBitcoins || {{No}} || {{No}} ||
|-
| LocalCoinSwap || {{No}} || {{No}} ||
|-
| LocalCryptos || {{No}} || {{No}} ||
|-
| Paxful.com || {{No}} || {{No}} ||
|-
| [https://porticoexchange.github.io/porticoexchangev2.github.io/ Portico Exchange] || {{Evaluating}} || {{Evaluating}} || https://twitter.com/PorticoExchange/status/1671095545719590912
|-
| Sideshift.ai || {{Yes}} || {{No}} || For "To send" choose "Bitcoin PayJoin"
|}

=== Non-profits ===


{| class="wikitable sortable"
|-
! Name !! Receive !! URL !! Notes
|-
| payjoin.org || {{Yes}} || https://payjoin.org/ ||
|-
| Human Rights Foundation || {{Yes}} || https://hrf.org/donate-bitcoin/payjoin/ ||
|-
| Waxwing's personal donation page || {{Yes}} || https://joinmarket.me/donations/ ||
|-
| Max Hillebrand's donation page || {{Yes}} || https://towardsliberty.com/btcpay/apps/27jLc1qpN8UXcQanHgeAsaEgLAio/pos ||
|}

=== Casinos ===

Bitcoin casinos are very natural early-adopters of PayJoin. An early protocol specification for it, called bustapay, was created by the owner of a bitcoin casino.


{| class="wikitable sortable"
|-
! Name !! Send to !! Receive !! Notes
|-
| Bustabit || {{No}} || {{No}} ||
|-
|}

=== Stores ===


{| class="wikitable sortable"
|-
! Name !! Receive !! Notes
|-
| [https://eataupa.com/cart/ Aupa Beef Bars] || {{Yes}} || https://twitter.com/EatAupa/status/1675307138288168960
|-
| Ideas Like Flames || {{Yes}} || https://twitter.com/ideaslikeflames/status/1389746824009949191
|-
| The Kratom Syndicate || {{Yes}} || https://thekratomsyndicate.com/blog/buying-kratom-with-payjoin.html
|-
| Namecheap || {{Yes}} || https://www.namecheap.com buy domains with BTCPayServer
|-
| [https://sats.coffee Satoshi Coffee Co.] || {{Yes}} || https://twitter.com/satscoffee/status/1679923696729837568
|}

Bitcoin Wiki - User contributions [en]

PayJoin adoption