Thomas Ziegler may refer to: Thomas Ziegler (ice hockey) (born 1978), Swiss ice hockey player Thomas Ziegler (cyclist) (born 1980), German road bicycle racer Thomas Ziegler (zoologist) (born 1970),
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 0xd8e7a05eb4c47df0df9500af3115b906688aeba1c84418441522b1c1edea5416. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ececc95f-ecf1-4d95-882a-dc4ea4cd47c3.json and https://artists.proofprofile.net/proofs/artist/ececc95f-ecf1-4d95-882a-dc4ea4cd47c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).