Mazurka No. 51 in F Minor, Op. 68 No. 4

Recording identifiers

ISRC

DEN960801650

Release date of the album this recording appears on

2023-10-06

CopyrightID (CopyrightChains transaction hash)

0x3e138be771d9470bfc6d0e6caacbe0f9c8444c4d04ffab6120b75a29af16b71b

Copyright registration time

2026-07-07T15:50:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T08:56:20Z

Bitcoin block

957145

Canonical record hash

sha256:394bb39ba9be99f01a4422900809c979b3b8a110a3f5127f4eecab0fb8585f95

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEN960801650

What this proof establishes

This recording was released in 2023. 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.