Tak smutno mi bez ciebie

Recording by Mieczysław Fogg.

Recording identifiers

ISRC
PLB960700316
CopyrightID (CopyrightChains transaction hash)
0xc05b05b1555af5134678372b13580ba2405c5ff906bb2fcf25bd40e295ebef09
Copyright registration time
2026-07-07T11:34:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:7a386a45d0215f1b683dd868c72ea59cfb006b7658b0358927550b8e994978af

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.