DJ Ghost (born 1981), real name Joshua Barrett, is an American DJ and music producer based in Philadelphia, Pennsylvania. He is best known as the official DJ for the Philadelphia 76ers and served as t
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 0x07d08fd4bffa003ac6ffc709ac16712dbbb0f8e2ebfa0bed8953e5bddf6bfc05. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6827fa5a-be17-437b-9d91-57008eb07222.json and https://artists.proofprofile.net/proofs/artist/6827fa5a-be17-437b-9d91-57008eb07222.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).