Nocturne Romantique No. 6 in A Minor

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU3698230
CopyrightID (CopyrightChains transaction hash)
0x5eaf7f68c6b69033f7f16442ec3be34850df2d17b5f8d405132c33dd46af9f73
Copyright registration time
2026-07-07T21:44:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:4e25598fb462533b3ad80f505723dec0b5854d1aa1f84cbb9c2558040fa1461e

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.