Tyra may refer to: Places Tyra (Třinec), a village and part of Třinec in the Czech Republic Tyra (stream), a stream in the Czech Republic Tyra Field, a gas field in the North Sea People Tyra (gi
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3e93830c0ec4a4a4eccb7ac9a1bb4c26948f11f31a44c84a4cceae87a6a925. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ac72f87-8a46-4e24-980c-1bdcf04ed1e9.json and https://artists.proofprofile.net/proofs/artist/7ac72f87-8a46-4e24-980c-1bdcf04ed1e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).