Chopin: Waltz No. 9 in A-Flat Major, Op. Posth. 69 No. 1 "Farewell"

Recording identifiers

ISRC

DEA800115674

Release date of the album this recording appears on

2024-01-30

CopyrightID (CopyrightChains transaction hash)

0xa7cf99bbbe2cceeec0558dbf814c9ff858c87633beb0b4307e9d5be53a22cd90

Copyright registration time

2026-07-22T16:57:16+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-22T17:48:40Z

Bitcoin block

959159

Canonical record hash

sha256:f95c9a762962c4550c9468f9e48808326ba1febf4909b5eabfc40b90843cb4d6

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEA800115674

What this proof establishes

This recording was released in 2024. ProofProfile's artist catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and this recording entered the record through cc-db-prod's ISRC-linked registration. Its provenance rests on the dates stated above rather than on the era of that source corpus.

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.