La Última Carta

Recording identifiers

ISRC

MXD782402293

CopyrightID (CopyrightChains transaction hash)

0xe56576a1077c2b00b22874a2fcb24b53e45ce27480d3017df7d0603b0999a24b

Copyright registration time

2026-06-04T06:36:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-06-13T12:47:07Z

Bitcoin block

953513

Canonical record hash

sha256:4e083ab142dac54578f44bb5b94b8da7f501ef91afc80b6f129b887e91d6d0ba

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result

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.