KAAR (92.5 MHz) is a commercial radio station in Butte, Montana. KAAR airs a country music format. KAAR and its sister stations are all located at 750 Dewey Blvd. in Butte. The rear of this radio fac
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 0x57c65097bab7580bc5a9bf741df4b5c441cebdd4ed79fe5bfd730f7de4187c70. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afe3bb53-7fc8-4393-8561-7784ce590e33.json and https://artists.proofprofile.net/proofs/artist/afe3bb53-7fc8-4393-8561-7784ce590e33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).