4 Impromptus, Op. 142, D. 935: No. 4 in F Minor - Excerpt

Recording identifiers

ISRC

GBUM72407122

Release date of the album this recording appears on

2025-02-28

CopyrightID (CopyrightChains transaction hash)

0x2edd92fc864f9abc38bdefce8f5c77c7b681f7619f66eda1ea35d8a060d099c9

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-30T14:36:16Z

Bitcoin block

960264

Canonical record hash

sha256:03153636d197afe7e5b04072a24d9a3ec23518943427686c61c38fdbe2d5b2d4

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBUM72407122

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.