Carta Abierta

Recording by La Tropa Chicana.

Recording identifiers

ISRC
QM6DC1549152
CopyrightID (CopyrightChains transaction hash)
0xc5b05625e9bcf730b0eeda90a09bbe53feecb20d57792b653ead024765ae59de
Copyright registration time
2026-07-07T03:47:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:9ff999bff28e8b393eb57b73eeecba47fef3174b6c7c7cce4ea7120a9b9f21e3

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.