13 Préludes, Op. 32: No. 2. Allegretto in B-Flat Minor

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
FR7JM1757130
Release date of the album this recording appears on
2018-02-16
CopyrightID (CopyrightChains transaction hash)
0x80b879e7a8084a05363b2b41bc2d65acf679c5131182e1db3d961f44cd00fbc6
Copyright registration time
2026-06-18T15:25:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:215ffa26b13b527bf3848e24abeb992462d33ff9bf6af876fc356ef4b2e83616

What this proof establishes

This recording was released in 2018, 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.