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 0x31e75a41514445deb6db1018c2ee47f218009adadc30fd8c61f9cf40de146dba. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e4d72ec-6865-4d28-a2d4-ce59162626d1.json and https://artists.proofprofile.net/proofs/artist/4e4d72ec-6865-4d28-a2d4-ce59162626d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Wicked Problem (Reducing Industrial carbon Emissions) [Original Soundtrack]
For Christopher (From the Usu Production 'the Curious Incident of the Dog in the Night Time')