ISRC CA5KR1537533
Verified recording
CA5KR1537533 is “Nic o tobie nie wiem, from “Włóczęgi”” by Mieczysław Fogg,
registered on the CopyrightChains blockchain with CopyrightID
0x8710ce2e9b86d2abe3f973bc7f4e3c87918d93153e5e1205ca0b1fffa0b50851 and independently timestamped
in Bitcoin block 960368 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1537533.
Recording identifiers
- ISRC
- CA5KR1537533
- Title
- Nic o tobie nie wiem, from “Włóczęgi”
- Artist
- Mieczysław Fogg
- CopyrightID (CopyrightChains transaction hash)
0x8710ce2e9b86d2abe3f973bc7f4e3c87918d93153e5e1205ca0b1fffa0b50851
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T08:26:41+00:00
- Bitcoin block
- 960368
- Canonical record hash
sha256:26c2f0b83776a39bf421bfebf8da3f88f30f0eee1643589f7a08bbbf70a61884- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR1537533
- Bitcoin block existence check
- https://blockstream.info/api/block/960368
Full record
Track page: Nic o tobie nie wiem, from “Włóczęgi” · Machine-readable JSON-LD