ANProto

the Authenticated and Non-networked protocol or ANother protocol

ed25519 keypairs sign timestamp + hash in base64

try it at anproto.com/try, test AndFS v1 audio/video media, or use a client such as wiredove

What is ANProto?

ANProto is the spiritual successor to secure-scuttlebot, but without all of the extra stuff that is difficult to maintain.
ANProto is an attempt to argue that ATProto is too involved in it's own networking infrastructure to be usefully decentralized.
ANProto operates under the working theory that Nostr will never reach anyone besides Bitcoiners.

Bring your own network!

ANProto works over any networking stack. Open the messages from your URL bar! Email them to your friends! Load them on a USB stick an slingshot them over a river! ANProto is non-networked, so you can send and retrieve the messages anyway you want. Try the fetch API or Websockets if you want a good place to start. But maybe dork out trying to send ANProto messages via Bluetooth, LoRa, or sync them via local wifi like you did with Scuttlebot!

the JavaScript library!

use Deno or your browser

import { an } from './an.js'

console.log(await an.gen())
// BSY7/er4VJIu08o39NaRAiPY/MAvd7oQhlGCRDABjYU=tQa03kqUWG3VtHZ98++lHFBeQ4JKZwuTH2CjC/K6P8EFJjv96vhUki7Tyjf01pECI9j8wC93uhCGUYJEMAGNhQ==

console.log(await an.hash('Hello World'))
// pZGm1Av0IEBKARczz7exkNYsZb8LzaMrV7J32a2fFG4=

console.log(await an.sign(hash, await a.gen()))
// BSY7/er4VJIu08o39NaRAiPY/MAvd7oQhlGCRDABjYU=yVpD8i7d3d4dls3YThEg1x1vSdmqeEweV4e4Ejl/8yPoVG7JR0YAKDPagQOgxXMrlCVLNNqvlNvj4xRDOYDLBjE3NTUxOTc4NDEzMTlwWkdtMUF2MElFQktBUmN6ejdleGtOWXNaYjhMemFNclY3SjMyYTJmRkc0PQ==

console.log(await an.open('BSY7/er4VJIu08o39NaRAiPY/MAvd7oQhlGCRDABjYU=yVpD8i7d3d4dls3YThEg1x1vSdmqeEweV4e4Ejl/8yPoVG7JR0YAKDPagQOgxXMrlCVLNNqvlNvj4xRDOYDLBjE3NTUxOTc4NDEzMTlwWkdtMUF2MElFQktBUmN6ejdleGtOWXNaYjhMemFNclY3SjMyYTJmRkc0PQ=='))

//1755197841319pZGm1Av0IEBKARczz7exkNYsZb8LzaMrV7J32a2fFG4=

Legacy content-addressed blobs

The browser media demo uses AndFS v1. The anblob:v1 helpers below are retained as an earlier ANProto storage experiment, not the current media format.

ANProto artifacts can point at verified files without embedding the file itself.

const store = new an.blob.MemoryBlobStore()
const id = await an.blob.putBlob(file, store)
const bytes = await an.blob.getBlob(id, store)
console.log(await an.blob.verifyBlob(id, bytes)) // true

Small blobs are SHA-256 addressed directly. Files larger than 1 MiB are split into deterministic 1 MiB chunks with a verified manifest.

See BLOBS.md for the format, tests, storage interface, and phone audio/video demo.

MIT