Jason Jamal Jackson (born July 26, 1987), known by his stage name 03 Greedo, is an American rapper, singer, songwriter, and record producer from the Watts neighborhood of the city of Los Angeles, Cali
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 0xeea98a18696964c337291440efef03caa3732b38986cd0e434024752f43a7ee1. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47592cde-d75b-49ed-95df-80a731cf6167.json and https://artists.proofprofile.net/proofs/artist/47592cde-d75b-49ed-95df-80a731cf6167.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).