thumb|Janne Teller in Mexico City, 2016 thumb|Janne Teller at Yucatan's international book fair, Mérida, March 2015 thumb|Janne Teller at Göteborg Book Fair, 2014 Janne Teller (born 8 April 1964 in
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 0xd3dbedd8712ee36d161fbb0f980f22b9bf2a92f53a81f9ad3bf9fb506c454a0c. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/554c4305-7186-4c11-9e29-54347f44f7cb.json and https://artists.proofprofile.net/proofs/artist/554c4305-7186-4c11-9e29-54347f44f7cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).