Suzo International was founded in 1955 in Rotterdam, The Netherlands and supplies components and solutions for the amusement, video game, casino, and vending industries. It also develops and manufact
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 0x503557bac6212cd1efac28394c0e7a11fc9b7559622970aed3ec9a22d3d50f4a. Chain 2 (Bitcoin): anchored in block 953936 (2026-06-16T11:24:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2051e1b7-fce7-4136-8eea-01098d85ad3d.json and https://artists.proofprofile.net/proofs/artist/2051e1b7-fce7-4136-8eea-01098d85ad3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).