KASL (1240 AM) is a commercial radio station licensed to Newcastle, Wyoming. The station carries a country music format, and broadcasts a 1,000 watt signal. It signed on in 1953. Weekdays, Kevin Seng
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 0xdbce1eff8b492b5bd07b891a19a8cf33b4308c04b162f5b8ff596a39bc918d3c. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25f5f1d6-6653-46d1-80ad-36dbd16e2beb.json and https://artists.proofprofile.net/proofs/artist/25f5f1d6-6653-46d1-80ad-36dbd16e2beb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).