Mary Had a Little Lamb

Recording by Matthew Mayer.

Recording identifiers

ISRC
US5ED2202181
CopyrightID (CopyrightChains transaction hash)
0x467eff7f8c64fc4eb7e91b7af5028333ebd4533493adc447d8ac8f9c134e0f48
Copyright registration time
2026-06-26T06:49:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:dbfaaf8337defb6c7c1ffc4748f479da952e576695a1408350793146047779a4

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.