Simbo is an island in Western Province, Solomon Islands. It was known to early Europeans as Eddystone Island. The islanders have their unique language spoken nowhere else. Geography Simbo is actually
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 0xe50a17517d0c23e2351d6218d9243b632fc33e0048ae43a411d2078acd2c4130. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/037068b4-f6de-4ae7-8710-c86fa9e4e359.json and https://artists.proofprofile.net/proofs/artist/037068b4-f6de-4ae7-8710-c86fa9e4e359.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).