Opluj.Pl

Recording by Katarzyna Skrzynecka.

Recording identifiers

ISRC
PLA391137311
CopyrightID (CopyrightChains transaction hash)
0xe9b0bce8182ff0bd679c237617ca1fecd683471ce689af402eda316a1322c9ce
Copyright registration time
2026-07-30T23:42:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T00:26:26Z
Bitcoin block
960327
Canonical record hash
sha256:36bde643881971e2eb7f589877cf4aa21ec7ca81591d33dfc5732f554f41b7a1

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.