I Whistle a Happy Tune

Recording by Marni Nixon.

Recording identifiers

ISRC
GBURF1000001
CopyrightID (CopyrightChains transaction hash)
0x7c9ee2b5b64543263175dc7de37d34cb9fe62d099ad48023d9a71f5bfd201c64
Copyright registration time
2026-06-20T12:23:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:585d92c4d28ead019b4d957c63b98db8bcea36356d0b14257bb50be4e0232470

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.