Second Waltz

Recording by Dmitri Shostakovich.

Recording identifiers

ISRC
DEMZ11700076
CopyrightID (CopyrightChains transaction hash)
0xc0e9dcd626cc1d895897e3db1d740279026bb1a306ed84bfda92bbc05d7923ca
Copyright registration time
2026-06-19T09:02:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:9991dd063504383dd1efc473dfb085d7fd5114ac5c455dcc4a26adcd0107ee13

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.