minimal nocturne no. 4

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU3566202
CopyrightID (CopyrightChains transaction hash)
0x095bcbfd7bd7ae04f8c7048da819c56b4a5b73dd8e630ea1ff60a7b9be795af8
Copyright registration time
2026-06-05T18:24:40+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:f21c9636369df48a23ac81dc3b582e64e645703606ac467f64accc084bb8e945

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.