Marque Richardson Jr. (born October 23, 1985) is an American actor. Early life Richardson was born in San Diego, California in the U.S., in a naval hospital. Both parents served in the United Stat
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 0x69fceddc204d420b6123d5bb88ccf89dbfff72bb1b6f6d4d4db2611829816af4. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c0502475-4f85-4cbb-8f52-12ee11275af6.json and https://artists.proofprofile.net/proofs/artist/c0502475-4f85-4cbb-8f52-12ee11275af6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).