Island City may refer to: In geography Island City, Indiana, an unincorporated settlement in the United States Island City, Kentucky Island City, Missouri Island City, Oregon, a city in the United St
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 0x08b22c869078fc93294fd7bd35a870eabe5d19d5bede747b75a6cf7f989a152c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff9464bd-f1dd-4740-80aa-330dc15192d8.json and https://artists.proofprofile.net/proofs/artist/ff9464bd-f1dd-4740-80aa-330dc15192d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aha! Butterfly rescue (Original Soundtrack)