Casse-noisette, op. 71 : pas de deux (extrait)

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
FR0W61940652
CopyrightID (CopyrightChains transaction hash)
0x086eeeeebd022ea738043b8bc40c7e9201c90cb12b5b3a8f84c66584299d7b45
Copyright registration time
2026-07-30T02:19:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T02:30:29Z
Bitcoin block
960199
Canonical record hash
sha256:e16f862ad7ae9d361a006ca77751f736b54885144903b2495ec60378fc158901

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.