Waltz from 'Swan Lake

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
USA560926506
CopyrightID (CopyrightChains transaction hash)
0xdb33e0196ea1adfb0be20501f3effb929a4b554f18736c41c77ef0b0cc0837ef
Copyright registration time
2026-07-30T12:20:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T12:45:34Z
Bitcoin block
960258
Canonical record hash
sha256:e80bbbe827334ea7ea0acc340e45c09bc53b944cad8add3ea7dcaccf1061de63

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.