A Transparent and Verifiable Way to Sync the AT Protocol's PLC Directory
atscan.net
tree.fail
PLC Bundle#
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⚠️ Preview Version - Do Not Use in Production!
plcbundle archives AT Protocol's DID PLC Directory operations into immutable, cryptographically-chained bundles of 10,000 operations. Each bundle is hashed (SHA-256), compressed (zstd), and linked to the previous bundle, creating a verifiable chain of DID operations.
What is plcbundle?#
plcbundle solves the problem of synchronizing and archiving PLC directory operations by:
- Bundling: Groups 10,000 operations into compressed, immutable files
- Chaining: Each bundle is cryptographically linked to the previous one
- Verifiable: SHA-256 hashes ensure data integrity throughout the chain
- Efficient: Zstandard compression with ~5x compression ratios
Quick Start#
As a Library#
import plcbundle "tangled.org/atscan.net/plcbundle"
mgr, _ := plcbundle.New("./plc_data", "https://plc.directory")
defer mgr.Close()
bundle, _ := mgr.FetchNext(context.Background())
// Process bundle.Operations
See full library documentation →
As a CLI Tool#
# Install
go install tangled.org/atscan.net/plcbundle/cmd/plcbundle@latest
# Fetch bundles
plcbundle fetch
# Clone from remote
plcbundle clone https://plc.example.com
# Verify integrity
plcbundle verify
Key Features#
- 📦 Automatic bundle management (10,000 operations each)
- 🔄 Transparent synchronization with PLC directory
- 🗜️ Efficient zstd compression
- ✅ Cryptographic verification (SHA-256 + chain validation)
- 🔍 Fast indexing and gap detection
- 🌐 HTTP server for hosting bundles
- 🔌 WebSocket streaming support
Installation#
# Library
go get tangled.org/atscan.net/plcbundle
# CLI tool
go install tangled.org/atscan.net/plcbundle/cmd/plcbundle@latest
Use Cases#
- Archiving: Create verifiable backups of PLC operations
- Mirroring: Host your own PLC directory mirror
- Research: Analyze historical DID operations
- Compliance: Maintain tamper-evident audit trails
Security Model#
Bundles are cryptographically chained but require external verification:
- ✅ Verify against original PLC directory
- ✅ Compare with multiple independent mirrors
- ✅ Check published root and head hashes
- ✅ Anyone can reproduce bundles from PLC directory
Reference Implementations#
Documentation#
- Library Guide - Comprehensive API documentation
- CLI Guide - Command-line tool usage
- Specification - Technical format specification
License#
MIT
Contributing#
Contributions welcome! Please open an issue or PR.