KYOA (98.7 FM) is a radio station licensed to Kiowa, Oklahoma, United States. The station is currently owned by K95.5 Inc History This station was assigned call sign KYOA on March 22, 2013. Referenc
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 0x98cd4c0c8a3544809f1b72ade527c5a1aaea7248ed896f081251bac6db3a6bb2. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f9f9ed6-7229-431a-bd3f-1695fb70657a.json and https://artists.proofprofile.net/proofs/artist/9f9f9ed6-7229-431a-bd3f-1695fb70657a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).