The Nutcracker, Op. 71, Act II Scene 3, 14. Pas de deux: a. Pas de deux

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBAYD8200171
CopyrightID (CopyrightChains transaction hash)
0xb7ec8dc564b919c491a851405a4dd3e76acb82b785f4c98a344636e9f884537b
Copyright registration time
2026-07-07T19:04:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:f7b197778f78954899e3198950fc1518d8aaf64abc69f4d15ef86aa7bd0307ca

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.