Piano Concerto No. 3 Op. 30: Intermezzo

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
NLB159600453
Release date of the album this recording appears on
2007-09-13
CopyrightID (CopyrightChains transaction hash)
0x72464ef7490b571a9aca1383094de6ddf984596201a2d152522b08f060cd2caa
Copyright registration time
2026-07-29T10:06:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T11:07:37Z
Bitcoin block
960095
Canonical record hash
sha256:419136f7140226c6ef0483709fe92311efcc18902cae3f75b584b83e75e08e99

What this proof establishes

This recording was released in 2007, 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.