KCAT (1340 AM, The Cat) is a radio station broadcasting an urban oldies format. Licensed to Pine Bluff, Arkansas, United States. The station is currently owned by Jay and Devon Brentlinger, through li
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 0x92626aacfcca2f933a3a3382f50e2004adda31baddf97442cc1e4e1957e85c0f. Chain 2 (Bitcoin): anchored in block 953852 (2026-06-15T23:13:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0170bdb6-ce17-4cfb-82a1-843587ab8001.json and https://artists.proofprofile.net/proofs/artist/0170bdb6-ce17-4cfb-82a1-843587ab8001.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).