Ossy is a village in the administrative district of Gmina Ożarowice, within Tarnowskie Góry County, Silesian Voivodeship, in southern Poland. References Category:Villages in Tarnowskie Góry County
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ec7a5407e9bbbbb8d896d99e3d1a7e16d8a978848abc3d7be83e85b3406913. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cdb2b6f-0611-4e9b-9aa5-8e8c193b7d18.json and https://artists.proofprofile.net/proofs/artist/8cdb2b6f-0611-4e9b-9aa5-8e8c193b7d18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).