The Nutcracker - Ballet Op. 71 (2001 Remastered Version), ACT 1: No. 2 - March

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBAYC0200227
Release date of the album this recording appears on
2021-01-27
CopyrightID (CopyrightChains transaction hash)
0x0369caea0a68f5c9ca5bf560614786d714c2fa8555ab527f67519056a3e66354
Copyright registration time
2026-07-31T06:02:00+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T06:42:11Z
Bitcoin block
960360
Canonical record hash
sha256:144a1b748a54d0bb07f31b9e2d4668a9c72e1f64bd4863ceb6520d93de17edf3

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.