Morro Dois Irmãos

Recording by Chico Buarque.

Recording identifiers

ISRC
BRPUI0700467
CopyrightID (CopyrightChains transaction hash)
0x6ae7d2b892aaf8cdb4be90b941ba1f84b6d1d518301b6f8f70fe3d9215e25eaf
Copyright registration time
2026-06-26T02:14:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:399dbc091ffbe75a4ae6de38d3b121388d64ab0d9f7c6eef53f6fb2a5f3250e3

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.