John Brown

Recording by Los Marcellos Ferial.

Recording identifiers

ISRC
QM7281491136
CopyrightID (CopyrightChains transaction hash)
0xb25c209f9fd35ca6942eebe2587f11a6a6be24980988908e4012a0a2eae65999
Copyright registration time
2026-07-30T20:25:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T20:45:02Z
Bitcoin block
960311
Canonical record hash
sha256:352f665193080b4caf0f515e7346955ce80a4d96f49d2e546b78a0b8d89cfa90

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.