A Firma

Recording by Mundo Segundo.

Recording identifiers

ISRC
QM6P42082726
CopyrightID (CopyrightChains transaction hash)
0x874af9519debed639555aa13ff7fcd868fc1a1026ecce095ac1cd6d84d9385cf
Copyright registration time
2026-07-31T22:46:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T23:30:38Z
Bitcoin block
960478
Canonical record hash
sha256:605cc209100a258189216c5da216d1e36b7db406952dc5e19c1e238945f1a0af

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.