À Toa

Recording by Dori Caymmi.

Recording identifiers

ISRC
BRRPL1300048
CopyrightID (CopyrightChains transaction hash)
0x0f828bb8bf96e69b6af6a3876e3a5d444fe8063fbab8c2f76198d3f74f9068e9
Copyright registration time
2026-07-07T04:18:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:654d96f25b275ccb5e0c61df8af14a92695aae1de3113ed582c44f21706d2b44

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.