The Nutcracker, Op. 71, TH 14, Act II: XIVa. Pas de deux

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
NLE421903520
CopyrightID (CopyrightChains transaction hash)
0xceb5a8706b2c15788046cea1743b426fe9cfe17533e13dc69779be52bd6b049c
Copyright registration time
2026-07-07T08:10:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:fd3d40f55db80d107aa2b2729aefd4865c4f544611b3250610fd65bf9d6bf748

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.