Perfidia

Recording by Esa Pulliainen C-Combo.

Recording identifiers

ISRC
FIRMX1300069
CopyrightID (CopyrightChains transaction hash)
0x506d1a8841fd63b72a309a7936973dc658cf93621781c494a2695fce4e93e56d
Copyright registration time
2026-06-25T12:28:54+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:546829a225f42ddd002f68da241660327631f8b92a646bdafe24d283609dfd3f

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.