Duas Palavras

Recording by Boaventura.

Recording identifiers

ISRC
QZWDD2320933
CopyrightID (CopyrightChains transaction hash)
0x9d7b2ca6b85fe8a0f305ff141342ddcd8be520f464f4e2e831d2dadf798059fc
Copyright registration time
2026-06-04T03:36:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:ee51f1a7d36ed3f34fad341c60d120277df802276f7ffeb3c27ada73f657b43c

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.