Rite Majorem Jacobum

Recording by Guillaume Dufay.

Recording identifiers

ISRC
US9Z81100109
CopyrightID (CopyrightChains transaction hash)
0xc3833122a615b8f1ba2e1a8e00a404721d3b1dccf9374c1de0229708e5f6bc64
Copyright registration time
2026-07-06T22:56:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:87335537f42eed623dba352cf4fea0429495553d2f6528f91accd170c78af831

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.