Mar Y Luna (Mar E Lua)

Recording by Chico Buarque.

Recording identifiers

ISRC
BRPGD8200010
CopyrightID (CopyrightChains transaction hash)
0xfb881a83e1b7db339f4f49659d8d2b57b9120a9f9e77271f242adcb4d6f7b484
Copyright registration time
2026-06-18T02:26:09+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:e288692992b7ed9663698e019ac2844294826766d65334ede50ca05cd529f9d3

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.