Puerto Rico Todos Quieren Fumar

Recording by Grupo Nizze.

Recording identifiers

ISRC
USDHM1621309
CopyrightID (CopyrightChains transaction hash)
0x5b4e43468b0b2277fe9b1a1ea996d41ecdf75596a22f6882b6d85d92fb983bf8
Copyright registration time
2026-06-05T13:40:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T15:41:10Z
Bitcoin block
953528
Canonical record hash
sha256:3d92069c141d5f60e525844428e7e89e541be388ec14e35af523545867e988b8

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.