KAIV, licensed to Thousand Oaks, California, United States, and KYZA, licensed to Adelanto, California, are radio stations on 92.7 MHz broadcasting the Air1 Christian radio network to areas north of L
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 0x563fdf4abf5502a7238e81de209c7e4ff14f4d42d784a7dbadf6711c3d65dfeb. 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/accd06a7-ab97-48a0-9cb0-724be30edbd8.json and https://artists.proofprofile.net/proofs/artist/accd06a7-ab97-48a0-9cb0-724be30edbd8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).