MKA may refer to: Companies and organization Magnusson Klemencic Associates, an American engineering consulting firm Majlis Khuddam-ul Ahmadiyya, the young men's branch of the Ahmadiyya Muslim c
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc988840b70c6a2a3365dfa0709a4373e5ecd2666866265cd3e212a702bef3317. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/146acb21-6511-4611-9b9d-297b5b998ac7.json and https://artists.proofprofile.net/proofs/artist/146acb21-6511-4611-9b9d-297b5b998ac7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).