Mazurka No. 4 in E-Flat Minor, Op. 6 No. 4. Presto ma non troppo

Recording identifiers

ISRC

GBF078340604

Release date of the album this recording appears on

2025-03-28

CopyrightID (CopyrightChains transaction hash)

0x5bf40d08c3c33044e3a8d4b28767ed07d0744113cca52595bee0991536782b0d

Copyright registration time

2026-06-28T01:31:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-02T16:51:38Z

Bitcoin block

956375

Canonical record hash

sha256:bff74d4efd8f165cd741562c86cdd2e21de1fc92bdb63536173199f28c104419

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBF078340604

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.