Swan Lake, Ballet Suite, Op. 20a: II. Waltz

Recording by Pyotr Ilyich Tchaikovsky.

Recording identifiers

ISRC
CAM460670238
Release date of the album this recording appears on
2020-02-29
CopyrightID (CopyrightChains transaction hash)
0x50d9f2894ce420a8003e9334ab6881ba44acd962530a01f8b179b199aebc8495
Copyright registration time
2026-07-31T10:51:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T12:24:41Z
Bitcoin block
960397
Canonical record hash
sha256:acda2cb1f12614146c118317b92f400acf02d3cf425d5428d8d8a73bd0107273

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.