Tomi Pulkkinen (born 2 August 1992) is a figure skater who represented Switzerland until 2012 and began competing for Finland in 2013. Born in Helsinki, Finland, he moved to Switzerland when he was ei
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 0x7dc42557e9960c09d729907efcb74891047a75882d938a10988878a1c5417e25. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb32752c-ee93-472b-91fb-40fed23d4eb6.json and https://artists.proofprofile.net/proofs/artist/cb32752c-ee93-472b-91fb-40fed23d4eb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).