Duas

Recording by Biquini Cavadão.

Recording identifiers

ISRC
BRMCA8700022
CopyrightID (CopyrightChains transaction hash)
0x98a123deb5a6b4cf6624e3f8fcd41e9ac0857d71e8e6bb3420fbe8966786b44b
Copyright registration time
2026-07-31T09:58:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T10:20:10Z
Bitcoin block
960389
Canonical record hash
sha256:c8cd1e9525e6c11eb9b26f41360d166fb7ff6724d5dcfcd43fb089f24cba97d0

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.