Saudade

Recording by Antonio Marcos.

Recording identifiers

ISRC
BRBMG7500005
CopyrightID (CopyrightChains transaction hash)
0xb5adfb7350e8c87ee0694e826bc6bbdacdb1b2ab6a7db363995fcf2fd4880204
Copyright registration time
2026-07-07T10:25:12+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:dc450b772121ca8592ce56fa11148b1d3e2dcab9c43d535d8af75a94c1b53470

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.