Mazurka No. 17 in B flat minor Op. 24 No. 4: Moderato

Recording identifiers

ISRC

DEF059004374

Release date of the album this recording appears on

1999-01-01

CopyrightID (CopyrightChains transaction hash)

0x4c0bb8441c86f005f9ce7003de846327b87f78a98d5badd7fe476228692ce1f1

Copyright registration time

2026-07-31T18:48:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-31T19:53:13Z

Bitcoin block

960455

Canonical record hash

sha256:0d7094c29155e03f25950a4789cd20491cb2e18585188fd2b091b93aa9eebb5e

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC DEF059004374

What this proof establishes

This recording was released in 1999, 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.