Spotkanie po latach

Recording by Marek Koscikiewicz.

Recording identifiers

ISRC
PLC691101748
CopyrightID (CopyrightChains transaction hash)
0xff85f24ba1a31fa09d36ec72671e246bd730c159cf93ffc95ae82945e2cacc16
Copyright registration time
2026-07-07T09:40:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:e904ab1bb59a1716811d3465cc9bd70434afa7ca89f71cb0e28dbd9e9cae37ef

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.