Frihet

Recording by Halvdan Sivertsen.

Recording identifiers

ISRC
NOPLB0402050
CopyrightID (CopyrightChains transaction hash)
0x2a6981f0ab019c0c2a179ec6a4f2e40a1353847453dc958d5ee1c536155baf36
Copyright registration time
2026-06-18T22:22:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:3e1433380c15617f24b23fe559b9e33f54623310f863858e89c7c390fe515972

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.