The Viet Cong (VC) was an epithet and umbrella term to refer to the communist-led armed movement and united front organization in South Vietnam. It was formally organized as and led by the National Li
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 0xc30138199a93ca4d4ae6a7624d3ad71ec7a7b9f176e15843e2ec5fa52b7112cb. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbf21b9f-8519-4da7-ad47-cc6bd1946df5.json and https://artists.proofprofile.net/proofs/artist/bbf21b9f-8519-4da7-ad47-cc6bd1946df5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).