Ciudad Oscura

Recording by Rubén González y el Noneto Cubano de Jazz.

Recording identifiers

ISRC
GBMEZ0935288
CopyrightID (CopyrightChains transaction hash)
0xb46613989920a030d1adf474343193ee9f10ed834023cf005a72e3ecf2f479e1
Copyright registration time
2026-07-07T19:23:53+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:720c262d9e6ebcd20f52557f05b96875e1c96743eb8d046d0a2567574a85c790

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.