Blask

Recording by Sidney Polak.

Recording identifiers

ISRC
PLB010900084
CopyrightID (CopyrightChains transaction hash)
0x1f6eafe3267d7e88d55859ff3df5217194a5099d7ba61a511f9cd9bb733eb3f0
Copyright registration time
2026-06-27T18:37:08+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:89fc10d60efbc4c36d643196b0f90162f6eba02a77b3db690c233c1854711186

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.