The Dark Side of the Past

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
GBE7J1060010
CopyrightID (CopyrightChains transaction hash)
0xafaca10858f3b10d9df8ca626043b9810b3f4fb0489d572f2a36c62aaf188806
Copyright registration time
2026-07-31T21:24:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T22:27:44Z
Bitcoin block
960473
Canonical record hash
sha256:182f0ccb99cbac0053b11281a03ce1f0247ecc37133f697586d2898351e08531

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.