DRE may refer to: Dre (album), 2010 by American rapper Soulja Boy Tell 'Em, 2010 Dre (given name) Dr. Dre, American rapper and producer Dre (Tibetan), one of the eight classes of gods and demons 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 0x0d81dc8dc108ba7616d57f4e1d3fe92e59238bf5ff8cd99a8ebe822b8d55a45e. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44dc70a6-4477-4c8b-b607-8fe4f0b35c78.json and https://artists.proofprofile.net/proofs/artist/44dc70a6-4477-4c8b-b607-8fe4f0b35c78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).