KCDA (103.1 FM) is a hot adult contemporary outlet owned by iHeartMedia. Facility ID:57625 The station offers up a mix of familiar new music with less talk. Its city of license is Post Falls, Idaho, a
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 0x4909aa0a6bb7838fe668bab3927d8432ce0b9f111bdab2c9ab7ab92ae3004752. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad07e5ad-3687-464e-a666-9e9ceadd7f56.json and https://artists.proofprofile.net/proofs/artist/ad07e5ad-3687-464e-a666-9e9ceadd7f56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).