24 Preludes and Fugues, Op. 87: Prelude No. 2 in A Minor

Recording identifiers

ISRC

USSM12005404

Release date of the album this recording appears on

2021-09-10

CopyrightID (CopyrightChains transaction hash)

0x0e12de2669057a788d76aac2001bca2327470b77784e0d09e22c5511c623c94e

Copyright registration time

2026-07-06T07:14:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-07T18:39:05Z

Bitcoin block

957073

Canonical record hash

sha256:2ac9d55ff41cbeb6e83a6e455eeff3d55ee746a9e68d7309594f827f72821ce7

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC USSM12005404

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

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.