Hi-C is an American fruit juice–flavored drink made by the Minute Maid division of The Coca-Cola Company. It was created by Niles Foster in 1946 and released in 1947. The sole original flavor was oran
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5eaf3c8d983bbef0dc568b95c9f6c61a82647aff9709db7c47b4b3335f99a8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f32a55d-02d1-466f-b2ac-3d3a69adb63b.json and https://artists.proofprofile.net/proofs/artist/5f32a55d-02d1-466f-b2ac-3d3a69adb63b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).