thumb|Coin of Teia, merely inscribing: ("Teia the King"). Teia (died 552 or 553), also known as Teja, Theia, Thila, Thela, and Teias, was the last Ostrogothic King of Italy. He led troops during the
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 0x2c211953652bbe24531fe34a0119b485bf609d51669eb253b1f6bb6fc6552fe2. 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/8f0c986b-24b2-4392-8028-780a77b7c4a0.json and https://artists.proofprofile.net/proofs/artist/8f0c986b-24b2-4392-8028-780a77b7c4a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).