Problemão (Versão Acústica)

Recording by MTK.

Recording identifiers

ISRC
BCMTK2000010
CopyrightID (CopyrightChains transaction hash)
0x9927b4621737bda2694ec8bc9ce9e760601863af47095a7e9a5efdde5e22db3c
Copyright registration time
2026-07-07T07:38:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:1adc16e7981b67bb4647f801d32a3121c5680fcf88ea364115870ed477af9d20

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.