Acho is a surname. Notable people with the surname include: Emmanuel Acho (born 1990), American football player James Acho, American sportswriter Sam Acho (born 1988), American football player as fi
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 0x13c6199280240c84f14450cbe972ccfa0ea4e471d946bd6f778cdd69ba690897. Chain 2 (Bitcoin): anchored in block 954573 (2026-06-20T15:45:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b436abc4-6a86-427e-9d7a-a5c0b4a6e0c4.json and https://artists.proofprofile.net/proofs/artist/b436abc4-6a86-427e-9d7a-a5c0b4a6e0c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).