Presidencia Aberta

Recording by Duas Caras.

Recording identifiers

ISRC
USCGH2091038
CopyrightID (CopyrightChains transaction hash)
0x9000d775f5e3986f2ec57f44009088bd652af0698c6c67d63926b63ea1d5da54
Copyright registration time
2026-06-22T08:26:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:fed7d102975a2c25258ff58f708ba0cdd17616ea9b3f97715df5dd067352789b

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.