The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Pas de deux: Intrada

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
DEU921644820
CopyrightID (CopyrightChains transaction hash)
0xc33225947976f25110a6e67611f1556aeadc3277fcdfc25d37c82ebc3d30edc3
Copyright registration time
2026-07-06T18:38:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2df70869a35900d4ce80fea8956132249711d56cd8439ea4372b9818ba51c87e

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.