1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd16bf217a18a94d72189d6a187015302b24a6f39cd2d606a9199c27e7bda018. 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/d7fecdd1-70f3-4656-8535-6bd2edff0b55.json and https://artists.proofprofile.net/proofs/artist/d7fecdd1-70f3-4656-8535-6bd2edff0b55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sommarsången (och nu så vill jag sjunga)
Barnvisor att leka & röra sig till - acapella