Trexy was a London-based Internet metasearch engine established in early 2006. The website was founded by Nigel Hamilton and Megan Hamilton. It allowed users to record and share "search trails" of the
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 0xceaa423b8ab5173975c5383b450b8005e99b90f19c819f2c25b12eabe3fb8b50. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a275e5ef-22f5-4c64-855a-350a7976b435.json and https://artists.proofprofile.net/proofs/artist/a275e5ef-22f5-4c64-855a-350a7976b435.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).