Co Każdy Chłopiec Wiedzieć Powinien

Recording identifiers

ISRC

PLU591700041

Release date of the album this recording appears on

2021-04-14

CopyrightID (CopyrightChains transaction hash)

0xc0117696526bcb883a199ba71c6528a0650511c366bdf4e34144cba34d331f17

Copyright registration time

2026-07-07T19:23:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:22:41Z

Bitcoin block

957120

Canonical record hash

sha256:1bd2d862145a0789d5479bd72b84fb6ab1d45ffc4780e298dd6c737b8b684e11

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC PLU591700041

What this proof establishes

This recording was released in 2021, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.