The Nutcracker, Op. 71, TH 14: Overture

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
HKI199339701
CopyrightID (CopyrightChains transaction hash)
0xc5542c16283b4ea476c9677766d2a391527d55e449889201b3cecaaf8b3bcd3f
Copyright registration time
2026-06-07T20:40:37+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:b0d7df281a6622eb58a7e9f7ba3c5153112b899883456755d8c1da51854481c8

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.