Do, DO or D.O. may refer to: Arts, entertainment and media Music Do (Do album), 2004 Do (Psychostick album), 2018 "Do", a song by the White Stripes from the 1999 album The White Stripes C (musica
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 0x6015939fbb13459d127def0d14eea9c930fb0680b8639741f59e2891cd23eef4. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/187dadb7-8494-4625-bd71-65f8f68379b8.json and https://artists.proofprofile.net/proofs/artist/187dadb7-8494-4625-bd71-65f8f68379b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).