California State University Fullerton University Singers
{"copyright_id":"0xdc6cc00f58f8ec40f033b80ca7e48bc3ebbfcad93f12014846ca53cffdf8c2e1","name":"California State University Fullerton University Singers","registered_at":"2026-06-21T06:04:27Z","symbol":"NIM1842722","token_address":"0xe8c1a228783ed3cc14cd05f5af1d59b51945a87f","type":"artist","uuid":"df4a5bb7-987e-4a3b-9983-9472c90b9f4d"}
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 0xdc6cc00f58f8ec40f033b80ca7e48bc3ebbfcad93f12014846ca53cffdf8c2e1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df4a5bb7-987e-4a3b-9983-9472c90b9f4d.json and https://artists.proofprofile.net/proofs/artist/df4a5bb7-987e-4a3b-9983-9472c90b9f4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).