Trudne sprawy

Recording by Matek.

Recording identifiers

ISRC
PLD501410004
CopyrightID (CopyrightChains transaction hash)
0x4a21e5e28a156082a616e8886e515252565e2ac1b158d71e0704c1aebcdda99f
Copyright registration time
2026-06-27T09:17:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:1a45f1996b426508ca3d2202c163c3ac8796c47b0a063a47e2ab86c0230c6ff0

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.