Steen Hansen is a Danish curler. He is a . Teams Men's Season Skip Third Second Lead Events 1975–76 Tommy Stjerne Oluf Olsen Peter Andersen Steen Hansen DJCC 1976 Junior DM Herrer | Hvidovre C
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 0x2ce8684f653bc6fdf6fe57ed6e9d90926340c6bf07ec87f26d3fafb71c14a656. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3fb25d6-6cde-4bb9-83eb-3535ec3e6cbd.json and https://artists.proofprofile.net/proofs/artist/b3fb25d6-6cde-4bb9-83eb-3535ec3e6cbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).