Canção Necessária

Recording by José Miguel Wisnik.

Recording identifiers

ISRC
BRVWN1100002
CopyrightID (CopyrightChains transaction hash)
0x5feeda110ee8aebeee2bdfdd5dc960eeff0db61f9207bb44b7c41021cf4c0b39
Copyright registration time
2026-07-07T07:49:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:2222ad00a3102581a4322a8f92473778e98ca6a58ceda39e6078ee360c829118

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.