







Been thinking about plc.directory as a single-point-of-failure So as a learning exercise, I threw together DIDMARC - an example of an independent witness for the directory 🔍 This approach uses Starknet to be fully trustless, but a trusted mirror could perform similar checks to identify abuse
DIDMARC: DID Mapping Alignment, Reporting & Conformance
didmarc.devJul 10, 2026 at 11:34 AM
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.
didplc.directory | DID:PLC Read Replica
A DID:PLC read replica for the AT Protocol. Resolve DID documents without hitting the main plc.directory server.
Introducing plcbundle - Tree For You
A Transparent and Verifiable Way to Sync the AT Protocol's PLC Directory
gbl08ma.com/didplcbft
A very experimental PLC implementation which uses BFT consensus for decentralization
did-method-plc/did-method-plc
Public Ledger of Credentials: a cryptographic, strongly-consistent, and recoverable DID method
did:plc Specification v0.1
DID PLC is a self-authenticating DID which is strongly-consistent, recoverable, and allows for key rotation.

A PLC-centric Digital Forensic Readiness Framework for Industrial Control Systems
Powered by Pure Link opens in a new tab, Scopus Link opens in a new tab & Elsevier Fingerprint Engine™ Link opens in a new tab
Creating an Independent Public Ledger of Credentials (PLC) Directory Organization - AT Protocol
As the next step of maturing governance of the PLC identity system, Bluesky Social PBC is supporting the creation of an independent organization to operate the PLC directory.

Primary | Data Command and Control
Primary - the Zero Trust Control Plane, offers unparalleled security and control for web access. Protect corporate data and secure your workforce without compromising speed and usability.

BlueAT Network (@blueat.net)
Introducing: BlueAT Network's PLC Directory Mirror! A mirror of the PLC Directory powered by Cloudflare Workers and Cloudflare's D1. Learn more: plc.blueat.net 🧵 (1/2) https://plc.blueat.net
Trust & Safety Library - Trust & Safety Professional Association
Welcome to the Trust & Safety Library! We use this space to collect articles, blog posts, journal articles, lectures, podcasts, and websites that trust and safety professionals may find useful in developing policies, supporting moderators, building systems to detect violations, and generally deepening their practice. We welcome your submissions and feedback. This project was initially

did-method-plc/website/spec/v0.1/did-plc.md at main · did-method-plc/did-method-plc
Public Ledger of Credentials: a cryptographic, strongly-consistent, and recoverable DID method - did-method-plc/did-method-plc
Introducing: BlueAT Network's PLC Directory Mirror! A mirror of the PLC Directory powered by Cloudflare Workers and Cloudflare's D1. Learn more: plc.blueat.net 🧵 (1/2)
PLC Directory Mirror | BlueAT Network
plc.blueat.net