Dan Gould

Payjoin Dev Kit 1.0 is out. The Rust implementation of BIP 77 and BIP 78 payjoin is stable on crates.io, with bindings for other languages.

1.0 commits to the core state machine API and the persisted session format meaning sessions you store today will replay in future versions. Clients send and receive payjoin with only HTTP client transport, survive restarts, and fall back gracefully.

Hard earned through pilot integrations with

and

. Thanks to dozens of contributors and to

, nostr:nprofile1qqs8suecw4luyht9ekff89x4uacneapk8r5dyk0gmn6uwwurf6u9ruspz4mhxue69uhkummnw3ezummcw3ezuer9wchszyrhwden5te0dehjuum5wghxxu30tde5x2, nostr:nprofile1qqs0rxy6jmt44guxkny8z4pkym9mxckqxfytygxuntjn6l80hj409sgpzfmhxue69uhky6t5wd6xzcmt9eshquqpzemhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtywn3e, Maelstrom, nostr:nprofile1qqsgcjxztw2d7fcxkupfq8p2hdwcqhpzc399fdl3y8rnwplqw8carkqppemhxue69uhkummn9ekx7mp0qy2hwumn8ghj7un9d3shjtnyv9kh2uewd9hj7l3ampx, and nostr:nprofile1qqsfzszrtw60ut24h28k0qy3cdyxhvpp2zx4lwyqzdfm7xwjsaxsj2qpzemhxue69uhkummnw3ezummwwdshguewdaexwqg5waehxw309aex2mrp0yhxgctdw4eju6t0ynpsle for support.

https://payjoin.org/blog/2026/08/12/announcing-payjoin-1-0/

shepherd’s pie is just Irish curry

Nick Land’s “Meltdown” is this week’s required reading

We really need more hardware to support miniscript

Americans might not be lean around the waist but afaict Europeans are certainly not lean around the company

Did nostr get attacked 2 days ago without any news?

Listen to this podcast. Go into 40hpw overtime if you have to.

This NIP defines how a Nostr relay can expose an Oblivious HTTP (OHTTP) target interface so that clients can send Nostr requests through an OHTTP relay without revealing their network identity to the target relay. Each request is encapsulated with an ephemeral HPKE key pair and routed via an OHTTP relay as per RFC 9458. The target relay processes the (decapsulated) request, decrypts the payload, and returns a response; the OHTTP relay cannot read contents, and the target relay cannot see client metadata.

https://github.com/nostr-protocol/nips/pull/2088

We just released Payjoin Dev Kit payjoin-1.0.0-rc.0. We think it’s a stable API.

and

pilots showed us a need for stability before more integrations.

More integrations must be coming next.

https://github.com/payjoin/rust-payjoin/releases/tag/payjoin-1.0.0-rc.0

17 contributors on this crate alone. Many others who just haven’t made commits.

Spiral Bitcoin Wizard (yes, that's his rightful title) and Longtime Bitcoin Privacy Developer Yuval Kogman Joins Payjoin Foundation as the First Advisory Board Member.

Thank you

and Yuval. We'd still be playing in the mud without your support.

https://payjoindevkit.org/2025/09/23/yuval-kogman-foundation-advisor/

Victor Mair commentary on Zhuangzi

The “Memes” forum (梗圖) icon on DCard (Taiwanese Zoomer Reddit) is Pepe

Hello, based

Payjoin Foundation Announced at bitcoin++ Riga

The necessity of privacy is self-evident. Every society makes use of it, from body covering to changing tone when non-family members are around the house.

these slides have seen better days

40,000 sats I DM TOES (OSS is not free)

Waiting patiently for

to offer a Bitcoin-secured revolving line of credit with checkbook access. Soon.

Payjoin is like CoinJoin but instead of focus on splitting money it’s on batching and instead of using some purpose built wallet you just scan a QR code

are you introducing social technologies into society at a scale significant enough to alter your civilization, anon?

How to chat on White Noise?

why do people use germanic -ness on latin roots when the latin -ity is right there

does this not prick your ears

The threat to use black-box chain analysis on a continuous basis in industrial and business organizations is degrading. The fundamental dignity of man is the issue.

Massachusetts has a history of leading the way with legislation protecting personal privacy. I wonder if there is a lever to pull with regard to financial privacy on the state despite the senators being backwards on this issue.

Many parallels between the history of the polygraph and black-box chain analysis

In 1955 all the installed computers in the US could do 500,000 additions per second.

An iPhone 16 Pro’s neural engine can do 35 trillion.

How is it you think about building your doner base

Open letters only work if you write them to an authority. Written to the public they are only read as decree.

Async Payjoin clients are backwards-compatible with Simple Payjoin, so BTCPay, Sparrow, Wasabi, etc can all payjoin with Cake and BullBitcoin Mobile

Every time someone says “This is the way” you must interpret it as taoist commentary and judge appropriately

nevent1qqsqcuhcqrdl7a5zklznpyrupqeaxu3m6yal6d4qa3kdjhj8ercwzmqpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhghp6axv

o3 is insanely useful for purchase research

Does using Bitcoin make me a satizen of the chain?

Payjo.in Directory Security Incident: Misconfiguration May Have Exposed Some Payjoin v1 Messages

Backwards compatible BIP 77 receives from BIP 78 senders made before April 2 may not have full common input heuristic protection

https://payjoindevkit.org/2025/04/08/payjo-in-redis-misconfiguration/

Why are async payments not the lightning priority what could possibly be more important

isn’t that what we need for self custodial mobile zaps