Nocturne Romantique No. 2 in D Minor

Recording by Carlos Marquez.

Recording identifiers

ISRC
GBSMU3698226
CopyrightID (CopyrightChains transaction hash)
0xb34bac208a327f92072a79af52154bed66da4de1e71ffeb45e6ace8953c4873b
Copyright registration time
2026-06-19T18:00:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:85f674d0fcb2e3ee686d07c8232eeb81a0fa86d03161e56df4cfb6d122ac57d4

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.