Impromptu No.2, Op. 31 in F Minor - Welte-Mignon 1481

Recording identifiers

ISRC

DEPI82307367

Release date of the album this recording appears on

2023-07-28

CopyrightID (CopyrightChains transaction hash)

0x3aaaeb7095c38e2187dc68824c6dc237bbf7b95b24fa22e7249883f03c1e5d74

Copyright registration time

2026-07-07T10:32:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:21080771a89b41940aee9c5edfe526fb8a3394dbfb45b041b60c7c34ea47105c

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC DEPI82307367

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.