jcs

A command-line utility for processing JSON-LD, RDF, RDFC, JCS, CBOR-LD, and multiformats with native executables for Ubuntu, macOS, and Windows - completely free of JVM dependencies.

ELPA for jcs-emacs, using github-elpa

JSON Canonicalization Scheme (JCS) implementation in rust on top of serde_json

Serialize JSON into a canonical format.

JCS (JSON Canonicalization Scheme), JSON digests, and JSON Merkle hashes

Go implementation of RFC 8785 JSON Canonicalization Scheme (JCS).

A multi-language reference implementation for computing canonical SBOM hashes. Supports CycloneDX v1.7 & SPDX v2.2, v3.0 (JSON) to demonstrate cross-language interoperability and best practices for SBOM signing and verification.

Deterministic RFC 8785 JSON Canonicalization Scheme (JCS) for Go: strict parser, canonical serializer, and stable CLI ABI.

Deterministic JSON serialization and canonical equality. RFC 8785 JCS

Verified Brand Record™ (VBR™) Specification — open standard for cryptographically signed, brand-authored identity records for AI systems. Apache 2.0.

Terraform Deployments

RFC 8785 (JCS) canonical JSON serialization and stable hashing for any JS value. Zero dependencies, ESM + CJS, typed errors.

IETF Internet-Drafts for the Veritas Acta protocol: signed receipts, knowledge units, and restraint/adherence artifacts

Byte-level conformance vectors for Agent Passport System implementations. JCS canonicalization, delegation, decision receipts, instruction provenance. Bring your canonicalizer, verify against the reference.

Sample app to demonstrate SSO between JCS and Oracle Fusion Applications

The single canonical LogLine receipt format. One file, frozen, citable. Engines obey it; conformance proves obedience.

Some functions to implement Verifiable Credential Data Integrity 1.0 using ED25519 and JCS

Conformance suite for the LogLine canon: schemas, vectors, fixtures, and a reference verifier proving engines obey logline.receipt.v0

Two-sided conformance vectors for the evidence-record layer — independence, completeness, anchored existence, phase separation, offer/decision/boundary binding. stdlib-only verifier + independent TypeScript cross-check; live Bitcoin-anchored vectors; externally reproduced byte-identically.