Pergunta Difícil

Recording by Chico Limeira.

Recording identifiers

ISRC
QZ5AB1784889
CopyrightID (CopyrightChains transaction hash)
0xcb1050190a6523016dcab602a8b0a094d3ebf74425f187b06fec40b0ac34530a
Copyright registration time
2026-07-31T06:14:43+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T06:42:11Z
Bitcoin block
960360
Canonical record hash
sha256:b5447130383c316431a8d51b412c9b55ff43a703c7984c917631bb6c70a231e5

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.