Swan Lake, Op. 20, Act II No. 13: Dance of the Cygnets: IV. Allegro moderato

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBLLH2064807
Release date of the album this recording appears on
2020-09-04
CopyrightID (CopyrightChains transaction hash)
0x74292ee19dae3a37fd91db6c8d28a7e728e825dccc56d3f3cae72997bb1721e8
Copyright registration time
2026-06-19T13:27:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:ee0efe66486c1cda9802d3411d1d89c52be342849a9739c88ad008b9bb5c6e29

What this proof establishes

This recording was released in 2020, 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.