Madalena Foi Pro Mar

Recording by Chico Buarque.

Recording identifiers

ISRC
BRSGL6600005
CopyrightID (CopyrightChains transaction hash)
0x0531badefb5b318b273c9a2f702a028973eb466c591d371af7bad8421056f699
Copyright registration time
2026-06-22T20:02:21+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:f8fe06bed0767257dfacff5c78fa7a023bd8aed8933b19da0b0377576bf3f132

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.