Jacob Lateiner (March 31, 1928 – December 12, 2010) was a Cuban-American pianist. Early life and studies Though born on March 31, 1928, Lateiner's father did not get around to registering his birth
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 0xf0ec88a914a54b3b54993d6df9c2acaf4ddf1e11e0d448e55a35d7cd2a6f39ad. 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/772a7c13-231a-4b0f-a8d5-1524441a0c31.json and https://artists.proofprofile.net/proofs/artist/772a7c13-231a-4b0f-a8d5-1524441a0c31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).