Theodore John Kotick (June 4, 1928 – April 17, 1986) was an American jazz double bassist. Kotick never recorded as a leader, but he appeared as a sideman with many leading jazz musicians, including Ch
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 0xdc675b4ce524f3721fa8318afae4039d87d84eb9fa35fc942e87166bd543de36. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26303c7f-5f6b-4e04-a8ba-d877cad3fcc9.json and https://artists.proofprofile.net/proofs/artist/26303c7f-5f6b-4e04-a8ba-d877cad3fcc9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).