Hej chłopcy, bagnet na broń

Recording by Chor Polskiego Radia.

Recording identifiers

ISRC
PLA246711905
CopyrightID (CopyrightChains transaction hash)
0xd845ffe3a267e4d6ffbc14271e1459cd3a5ef0dba8101df0bb7d971145cc22cb
Copyright registration time
2026-06-21T10:46:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:4b9d1330c0a34db7325feac9618d3fa673c282f8844af1c40473ee83888551da

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.