KTLN may refer to: KTLN-TV, a television station (PSIP channel 68/RF channel 22) licensed to Palo Alto, California, United States KTLN (FM), a radio station (90.5 FM) licensed to Thibodaux, Louisia
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 0x2099bd6ca22106ece82826869686c47fb7f70d9464cf5d7f55325cdb009d8d0b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a2274da-ad67-4b1a-9856-6a882a80ddd2.json and https://artists.proofprofile.net/proofs/artist/8a2274da-ad67-4b1a-9856-6a882a80ddd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).