Cardinal Rule

Recording by Michael Brecker.

Recording identifiers

ISRC
GBUM70702900
CopyrightID (CopyrightChains transaction hash)
0x49a7b707aadb3005960625930f337961edaf30d19738e7cb6221064a8ee1329e
Copyright registration time
2026-07-07T03:17:59+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:421f1873390c916c03f9036bee4a59eb12b6cd99da91f04a207ad8d665fce616

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.