KLS may stand for: Kalash language (ISO 639 code: kls), a language of Pakistan KeAndre Lambert-Smith, American football wide receiver Key Largo School, a school in Florida, US Khitan large scrip
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 0x67586a77a30047edc765c0dcbe978ca3c8c3cf1565e949d0dc8c1bb1454c3a83. 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/c41e37bc-8895-4fe3-8992-e75d2b80d9f1.json and https://artists.proofprofile.net/proofs/artist/c41e37bc-8895-4fe3-8992-e75d2b80d9f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).