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 0xd4f21f53ac60fb4bae0338b53fa5b507712e3f21360c5530d6f06cfe51a0ffbb. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74cec24e-c9e9-48bd-8fcc-fb764cb7678b.json and https://artists.proofprofile.net/proofs/artist/74cec24e-c9e9-48bd-8fcc-fb764cb7678b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
S.O.O.N 2 (A Better Year) [Deluxe Edition]