Waltz 2

Recording by Dmitri Shostakovich.

Recording identifiers

ISRC
RUAGT2560072
CopyrightID (CopyrightChains transaction hash)
0xe485af020ab539b95ebb521b33f38a87c715dd9ca2321869a0212b9fa7eed23b
Copyright registration time
2026-06-19T23:37:28+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:fb4e87f341a198a0e772b7399a2fd4c31d1ff13ae25dab026a7e4e3371f84ebe

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.