Jay DeMarcus (born Stanley Wayne DeMarcus Jr.; on April 26, 1971) is an American musician, vocalist, record producer and songwriter. He is a member of the country music band Rascal Flatts. Early life
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 0xb3788bfb82e41c670c02d4a89d7c4627e706167d53917a00023b1bfd6facd957. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40584c14-2cb8-485e-8756-8e27c42277dd.json and https://artists.proofprofile.net/proofs/artist/40584c14-2cb8-485e-8756-8e27c42277dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).