Quando a Lua Voltar a Passar

Recording by Sebastião Antunes & Quadrilha.

Recording identifiers

ISRC
PT8CY1900319
CopyrightID (CopyrightChains transaction hash)
0xea5fe9361649207c742d74b15050b65e09e1d771a63af3ce90bbabe12ee8c29f
Copyright registration time
2026-07-07T11:23:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:42aa2626b0c36c1b7b024afb9f1d734b5b000a39ae3de91b5ead8494adac39ec

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.