Firmeza

Recording by Mestre Irineu.

Recording identifiers

ISRC
BRAOU0400005
CopyrightID (CopyrightChains transaction hash)
0x7989dc59dd5281f79bac9880dd5fc29d5215e935abd882d218db98c8594487c5
Copyright registration time
2026-07-06T23:04:51+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:92e52379ef2d8980cf1d4ededc52e302c9d4341753db69326505d59943993b14

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.