Nocturna

Recording by Cacho Castaña.

Recording identifiers

ISRC
ARUM71600250
CopyrightID (CopyrightChains transaction hash)
0xae9234109747b4b3077990bdafdd4d405e2feddf1806b4359390b8e1c3c6ef06
Copyright registration time
2026-07-30T14:32:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T14:44:50Z
Bitcoin block
960266
Canonical record hash
sha256:7ab9423ccaf1781ad52c53823431224ab1b8d71e7dbc55f149b24779c13807e2

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.