Chopin: Mazurka No. 11 in E Minor, Op. 17 No. 2

Recording identifiers

ISRC

GBAYC1601721

Release date of the album this recording appears on

2025-10-09

CopyrightID (CopyrightChains transaction hash)

0xbbd61973c155f180723ca237ec688409961a1d4b19b9bff6e7569f4386bb7464

Copyright registration time

2026-06-24T05:31:56+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T03:55:08Z

Bitcoin block

956304

Canonical record hash

sha256:a2b6404b19bbfb7221b039ea3f71591e7b47b3058378962899453f56ff2bc32b

• Verify the CopyrightID on CopyrightChains
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• Recording evidence summary for ISRC GBAYC1601721

What this proof establishes

This recording was released in 2025. 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.