The Nutcracker, Op. 71, TH.14 / Act 1: No. 2 March

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBF077440803
CopyrightID (CopyrightChains transaction hash)
0xe08869ae3b0910b1098c4276797a5e5d1c370650f0ca3a32d111cdb742ed9fcc
Copyright registration time
2026-07-07T12:47:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2cd765b968dc2674c62cd820733f745f3cfffc92b5ddd54a730cc36b15902d35

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.