thumb Caesar Frazier is an American musician, keyboard player, producer and jazz, funk and soul recording artist who is best known as the former keyboard player for Marvin Gaye. Frazier specializes i
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 0xf2eaac03dabc0dd6a6f56393c9f118b1fc9e76d26d4fb8c9385fdd9164a53299. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db47d654-4c69-4183-a2f7-d7bd7fb25e1a.json and https://artists.proofprofile.net/proofs/artist/db47d654-4c69-4183-a2f7-d7bd7fb25e1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).