Waltz No. 4 in F Major, Op. 34 No. 3

Recording identifiers

ISRC

DEN960800953

Release date of the album this recording appears on

2008-01-01

CopyrightID (CopyrightChains transaction hash)

0x376ca8435436833178a16a8d38b9ca152cc34a892f6ebe2cd07507c05d66481a

Copyright registration time

2026-07-30T21:38:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T22:27:30Z

Bitcoin block

960321

Canonical record hash

sha256:7cf5a366996e4abfb2f8650c055dc983d37c98513feb8a8526f46eeee4a7b83f

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEN960800953

What this proof establishes

This recording was released in 2008, 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.