Prelude in E-Flat Major, Op. 23, No. 6

Recording by Sergei Rachmaninoff.

Recording identifiers

ISRC
QMFMG1439826
CopyrightID (CopyrightChains transaction hash)
0xfcb383a194a183cc3183ae5f8a279c82c0e5c45ad764dda7cbfe31d488d46e6f
Copyright registration time
2026-07-07T11:42:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:79299866833348f9d877772d0e48d525c143bad7883608ec8672934d43ac8e65

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. 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.