







PLC Keeper is a free iPhone and iPad app that checks your did:plc identity, lets you hold your own recovery keys, and helps you undo unwanted changes.
Who Actually Owns Your ATProto Identity? Hint: It's Probably Not You
ATProto gives your PDS operator full control of your signing and rotation keys, letting them impersonate you across every app in the ecosystem or kill

did:plc Directory
PLC is a persistent global identifier system, which allows accounts to retain relationships while changing names or migrating between service providers. It makes use of cryptography and gives individuals (or organizations) direct control and ownership over their identitifier, but does not make use of any blockchain or cryptocurrency technology, and is inexpensive enough to provide as a no-cost service.
did:plc Directory
PLC is a persistent global identifier system, which allows accounts to retain relationships while changing names or migrating between service providers. It makes use of cryptography and gives individuals (or organizations) direct control and ownership over their identitifier, but does not make use of any blockchain or cryptocurrency technology, and is inexpensive enough to provide as a no-cost service.
PLC Organization
The PLC Organization is a small Swiss Association ("Verein") which provides open network identifier infrastructure. It serves as a neutral steward for the Public Ledger of Credentials (PLC) system, which provides persistent identifiers to over 40 million accounts in the atproto social web ecosystem.
PLC Organization
The PLC Organization is a small Swiss Association ("Verein") which provides open network identifier infrastructure. It serves as a neutral steward for the Public Ledger of Credentials (PLC) system, which provides persistent identifiers to over 40 million accounts in the atproto social web ecosystem.
Building AIP: An ATProtocol Authorization Gateway - Nick's Blog
OAuth is the first challenge developers face in the atmosphere. This post is about AIP, the authorization gateway we built at Graze Social to alleviate some of the pain.
did:plc Specification v0.1
DID PLC is a self-authenticating DID which is strongly-consistent, recoverable, and allows for key rotation.
Your identity isn't your username
Your username is a label; your identity is a key you own. atproto splits who you are from what you're called, so you can rename freely, prove who you are with a domain you control, and carry one identity across the apps you use. Part of 'Apps as Views, Not Vaults': the things you make are yours; apps are just the viewers.

plc-passkey · Passkeys as PLC Rotation Keys
Derive deterministic secp256k1 rotation keys from passkeys via WebAuthn PRF and add them to AT Protocol did:plc documents.
Entryway operator guide — running atproto-entryway
Operating atproto-entryway: the account service and OAuth authorization server in front of one or more PDS instances. What it owns, keys, pairing a member PDS, the full environment reference, reconciliation, and the traps.

ATProtoFans - Support Your Favorite Creators
Decentralized supporter attestation service for the ATProtocol ecosystem. Support creators with cryptographically verifiable relationships.

built an atproto terminal ui for setting up alternative plc rotation keys. there are two types of keys. hardware-based: no sync software-based: synced via icloud is anyone interested in this? I could package it up and release it, though it needs a lot of UX work. tangled.org/saewitz.com/plc-touch/
I suspect we’ll see a bunch of apps that leverage atproto’s did:plc identity layer but store data out of band.
boltless
the single most important part of atproto is the PDS as a user-controlled auth and storage layer to which clients can connect directly. death to appviews
Authenticated Transfer Enables Orchestration - nekomimi
blog.nekomimi.petSeventh in the atproto permissioned-data series: notifications. One self-keyed space per identity, every app writing through a create-only grant, and a reader you choose doing the triage. The self shape returns, direction flipped.
Permissioned Data Shapes: Notifications
ngerakines.leaflet.pub