Nocturne Romantique No. 3 in E Minor

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU3698227
CopyrightID (CopyrightChains transaction hash)
0xb413a7ba05f63dcdbbad4973e3fe53c084b7706c752f0fd00cd6c12e4b20db82
Copyright registration time
2026-06-22T09:44:44+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:23157b2b28c2f56158ed3e1be68470d18000d97bd89a59cfe55d7786b74d72bb

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.