Zdes' khorosho, Op. 21, No. 7

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
GBBBB2010621
Release date of the album this recording appears on
2001-01-01
CopyrightID (CopyrightChains transaction hash)
0x5be5757d5295acb7c52f6525a4c62afd8cc19ce2cd15a9b21f3a6c8f5eb4612e
Copyright registration time
2026-07-31T22:40:45+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T23:30:38Z
Bitcoin block
960478
Canonical record hash
sha256:ae774b5d400e10f54657b36a1954dbb0e1854b5b9edf7a0a8c4362b970917e67

What this proof establishes

This recording was released in 2001, 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.