Nie mieliśmy nic

Recording by KęKę.

Recording identifiers

ISRC
PLS412100013
CopyrightID (CopyrightChains transaction hash)
0xf4cffe4deb8f842bed1f1e7790a4a15f776a551a71038adb5b4cbc8820c56e86
Copyright registration time
2026-06-09T17:38:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:20ca87ce884863fa3812dae02afa0bfdf7a02c7eb0a1eb1cb21c356e06b38694

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.