Waltzes, Op. Posth. 69: No. 1 in A-Flat Major, "Farewell Waltz"

Recording identifiers

ISRC

DEB790302960

Release date of the album this recording appears on

2013-12-16

CopyrightID (CopyrightChains transaction hash)

0x437e21667443901807134d37634b7eaaafa5e1959fd88318ac1548fb04ffc5ea

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:6c945fccace4549f492da98f421427a7f0386742101bb0c7d1a6a97b71af8d71

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEB790302960

What this proof establishes

This recording was released in 2013, 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.