ISRC PL90Y2391648
Verified recording
PL90Y2391648 is “Byliśmy kiedyś w Warszawie” by Klarenz,
registered on the CopyrightChains blockchain with CopyrightID
0xafb8dbbbb6a9490d953fb9c30c7cb790154cec97dd1685746e6959eefd0293ac and independently timestamped
in Bitcoin block 957120 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL90Y2391648.
Recording identifiers
- ISRC
- PL90Y2391648
- Title
- Byliśmy kiedyś w Warszawie
- Artist
- Klarenz
- CopyrightID (CopyrightChains transaction hash)
0xafb8dbbbb6a9490d953fb9c30c7cb790154cec97dd1685746e6959eefd0293ac
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:22:41+00:00
- Bitcoin block
- 957120
- Canonical record hash
sha256:560506d5fa20497140d102627229ab3471634c2613f619eafc2e7742c4a38a42- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL90Y2391648
- Bitcoin block existence check
- https://blockstream.info/api/block/957120
Full record
Track page: Byliśmy kiedyś w Warszawie · Machine-readable JSON-LD