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.