Dave Sharp (born 28 January 1959) is an English guitarist who co-founded, along with Mike Peters, the Welsh punk/new wave band the Alarm. Early career Sharp was born in Kersal, Salford, Lancashire, a
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 0xdac3f37da238af14d6387061c0ce7413802adf1b584ff040874995a56567ac4c. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac6ed25f-afe4-463f-91ad-467f23befa09.json and https://artists.proofprofile.net/proofs/artist/ac6ed25f-afe4-463f-91ad-467f23befa09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).