Stacia Blake, known mononymously as Stacia, is a former performance artist/dancer with the rock band Hawkwind. Early years Stacia was born in Exeter, Devon, England. With Hawkwind thumb|Stacia app
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 0xeed6749a4c50262d91a4667ece0f93d41ddff82e6f41fd928afb12a35cfea01b. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/307b070e-6300-4270-b7cc-e59da2f3a988.json and https://artists.proofprofile.net/proofs/artist/307b070e-6300-4270-b7cc-e59da2f3a988.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.