Rocha Firme

Recording by João Marcos.

Recording identifiers

ISRC
BRMKP0300401
CopyrightID (CopyrightChains transaction hash)
0xdbef9562368918a49d38e1ea020d5dd42504f80a855a8b25eeba3a1747df6650
Copyright registration time
2026-07-06T20:44:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5be7daa26f69748fa50f9223412772ca2f8fb07ab595db238579deb4dff8e3a1

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.