Mike Lipskin (born 1945) is a stride jazz pianist of the pre-bop jazz style. A protege of Willie "The Lion" Smith, Eubie Blake and Luckey Roberts, he has created his own special mode within the idiom.
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 0xa506fa470b6468b9a7ed444356bba6152853aa9bbfc31d7baacca5127f1b2b9c. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c73b9dd-6a0f-4825-8b76-2c6543550a13.json and https://artists.proofprofile.net/proofs/artist/2c73b9dd-6a0f-4825-8b76-2c6543550a13.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).