thumb|Michael Stolle pole vaulting at the Potsdamer Platz in Berlin 2004 Michael Stolle (born 17 December 1974 in Buxtehude) is a German pole vaulter. His personal best was 5.95 metres, achieved in A
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 0x27a5d5fd08399e55751fc72f3a3a4c30e9bbd258158b277a0352e62e99468336. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44711fe1-89af-4c20-968b-b21c84780444.json and https://artists.proofprofile.net/proofs/artist/44711fe1-89af-4c20-968b-b21c84780444.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).