How ATProtocol uses Content Identifiers to create a versioned, verifiable, and portable data model.
CIDs: What You Need to Know and Why, Part 1 - Nick's Blog
A deep dive into Content Identifiers, the self-describing cryptographic fingerprints that form the foundation of ATProtocol’s data model.
ATProtocol Attestations: Cryptographic Signatures for the Decentralized Web - Nick's Blog
This post introduces the formal ATProtocol attestation specification, a framework for adding cryptographic signatures to ATProto records through two complementary patterns: inline attestations that embed signatures directly in records, and remote attestations that store proof in separate repository records. The specification prevents replay attacks through repository binding, uses CID-based content addressing for integrity, and provides the cryptographic foundation for verified credentials, trusted content, and authenticated interactions in the decentralized ATProtocol ecosystem.
Lexicon Garden - ATProtocol Lexicon Browser
Browse and discover ATProtocol lexicon schema definitions
AT://links (by Patrick Singletary) — Semble
collection of fun / useful apps built to work on / with ATProtocol
Code as Content on ATProto — Filae
Apps as ATProto records - a proof-of-concept for serverless, user-owned applications.
Bitesize Proto: Upserting ATProto Records - Hitchhiker's Guide to the Atmosphere
Tired of creating duplicate records in a repo from your atproto app?
Welcome to the new atproto.com - AT Protocol
We've updated just about everything about atproto.com to make it easier for developers to just build things.
ATProto Architecture
Visual summary of the AT Protocol architecture: PDS, AppView, identity, records, lexicons.
The Atproto Spaces Alpha is Live - AT Protocol
Atproto Spaces, formerly known as “the permissioned data protocol,” is a new extension to atproto that enables non-public data. The alpha is now officially open. Here’s how to develop with it and what to expect as we work towards the full release.
The Atproto Spaces Alpha is Live - AT Protocol
Atproto Spaces, formerly known as “the permissioned data protocol,” is a new extension to atproto that enables non-public data. The alpha is now officially open. Here’s how to develop with it and what to expect as we work towards the full release.
GrandPerspective — PDS edition
See where an atproto repository's bytes actually go, and act on what you find.
Permissioned data is a love triangle - Nick's Blog
Permissioned data is a love triangle between the user, the identities they grant permissions to, and the applications everyone uses to view controlled data. We don't need to change or reinvent the protocol to have it, because ATProtocol already supports it.