Tasa Jiya (; born 16 September 1997) is a Dutch track and field athlete who competes as a sprinter. In 2023, she became the Dutch national champion over 200 metres. She won a bronze medal in the women
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 0xeedf95bce98b666efe8e26db2f697bc09af11b4df93fe5a087e6cd48b1ff73d0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d89b1893-6be4-4f24-b09d-d9ff2112d75c.json and https://artists.proofprofile.net/proofs/artist/d89b1893-6be4-4f24-b09d-d9ff2112d75c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).