KURL (93.3 FM) is a Christian radio station licensed to Billings, Montana, United States. The station is currently owned by Northwestern Media. History The station initially signed on April 5, 1969,
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 0x0ac27afa497f247ef0d7b3433c16a7af48ecc458437323db8c2424229fcacdc9. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6ba872c-9806-4669-8595-100be9c0aec2.json and https://artists.proofprofile.net/proofs/artist/b6ba872c-9806-4669-8595-100be9c0aec2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).