KYWN (890 AM) is a radio station licensed to Meridian, Idaho, and serving the Boise metropolitan area. It airs a Spanish-language Christian radio format and is owned by Impacto Network, Inc. It calls
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 0x5391d924a01e96638e12ca49b4452c2235f354ae14de37c5a216b059917f75f5. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff0b22f9-6df2-46f1-9c0b-4367d99a5b49.json and https://artists.proofprofile.net/proofs/artist/ff0b22f9-6df2-46f1-9c0b-4367d99a5b49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).