Proposta

Recording by Nara Leão.

Recording identifiers

ISRC
BRMCA7800134
Release date of the album this recording appears on
1978-01-01
CopyrightID (CopyrightChains transaction hash)
0xf4b0c097d80f210ee138f161baab5723ebfd224380fd1422dcdbf49f0a5a02e4

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T04:30:37Z
Bitcoin block
960509
Canonical record hash
sha256:53aa54ea136dee0255224ea6a9450dd61df84d4efd51ae4b25f4481236ecf4cc

What this proof establishes

This recording was released in 1978, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.