Pas de deux

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBBBC2200601
CopyrightID (CopyrightChains transaction hash)
0x7cedcf534dda221a6e1a93ee5a55278c6962a3ef418abdc68edf66723d58a222
Copyright registration time
2026-06-21T21:09:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:891c0818034ca30ba450ce2344cf57c5be1dc5305c2b7c4049265c635ecd904d

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.