Swan Lake, Op. 20, Act I: No. 2, Waltz (Tempo di valse)

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
GBAYD8200455
Release date of the album this recording appears on
2016-12-06
CopyrightID (CopyrightChains transaction hash)
0x63b302c231a824bbf2b5055fda88dfccbd24f84574ef93885b768993c8da86e7
Copyright registration time
2026-07-06T06:11:50+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:cf35c602ecb61026007ad12c07711014f3ff71047ed2e65fefbf16b8c6453d96

What this proof establishes

This recording was released in 2016, 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.