The Nutcracker, Op. 71: Act I Tableau 1: March

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
FINDE1100085
CopyrightID (CopyrightChains transaction hash)
0x19b93e42d87b6cead803b3047f477f7c1b4c2fd4f26dc8b677ab18950556cbfb
Copyright registration time
2026-06-08T02:38:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:6872c59d43f58823e547e005a1cb3394d48acb60ff3508c0ef71cfa0fc66f0d3

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.