Cowtown may refer to: Nicknames of places United States Cattle towns, a generic name often associated with the American Old West Abilene, Kansas, from 1867 to 1871, the Chisholm Trail ended in
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 0xae88e7aa73711b09dbbb1d8f870329dd45d3f569ec83db6177490668640365bb. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c17dfd33-1480-4c68-9b44-a23567987df5.json and https://artists.proofprofile.net/proofs/artist/c17dfd33-1480-4c68-9b44-a23567987df5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).