Ainslee Cox (June 22, 1936, Big Spring, Texas – September 5, 1988, New York City) was an American conductor. A graduate of Westminster Choir College and the University of Texas at Austin, he was assoc
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 0x3c050f7825b8d4be929215091b08d9e24e08799450a5b6d0ef784a625431e222. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75b2322a-7324-4def-949d-f9d2b7de1de1.json and https://artists.proofprofile.net/proofs/artist/75b2322a-7324-4def-949d-f9d2b7de1de1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).