KOAS (105.7 FM, 105.7 Maxima) is a radio station broadcasting a bilingual adult contemporary format. Licensed to Dolan Springs, Arizona, United States, the station serves the Laughlin/Las Vegas/Dolan
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 0x0cca1704428808388a9627c5885b1f2d729b055808a94ea11374e7e41f648710. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7da79e85-ab2b-4673-99fa-83d0c15898cc.json and https://artists.proofprofile.net/proofs/artist/7da79e85-ab2b-4673-99fa-83d0c15898cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).