Melodia z filmu Trąd

Recording by Tadeusz Prejzner.

Recording identifiers

ISRC
PLA551800102
CopyrightID (CopyrightChains transaction hash)
0xd3cf96c7fbc860cadceb91afea84d833b6b48b46cc08de1ba7fd50a66c73d1b5
Copyright registration time
2026-07-07T21:40:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:36b17a7aba064ec7a9da1e7209fab57159a6a8be5f7af7f25fcf2f1742c36ddc

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.