Dwa proste słowa

Recording by Marek Koscikiewicz.

Recording identifiers

ISRC
PLC691101750
CopyrightID (CopyrightChains transaction hash)
0x2c2de889108c73be7ad643683a6c8b4b104a0a1a3d4ad79f3cc7d3d8004da984
Copyright registration time
2026-06-25T13:08:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:b8ec2967a98eb24f0d2a3a17c768a4e411edc4c54694a4c32ab8fdf0d37482fd

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.