David Essig (born December 2, 1945, in Frederick, Maryland)Biography of David Essig; Canadian Encyclopedia. Retrieved 2014-01-21. is a Canadian singer-songwriter, producer and record label owner. Hi
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 0xebba5ce35729bed62e6bd26f7c7a1a4e97d52f6fd5033b85c7c7661bf6153c88. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffb9d179-ef71-41df-8452-e16dc1d62978.json and https://artists.proofprofile.net/proofs/artist/ffb9d179-ef71-41df-8452-e16dc1d62978.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).