Cecilie is a given name. Notable people with the name include: Cecilie Broch Knudsen (born 1950), artist and rector of the Oslo National Academy of the Arts Cecilie Henriksen (born 1986), football fo
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ef50d1aa5863ae769744d8cc70c265a5187259d11335e8df6c3bb82c6b1561. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d61276c3-a9cc-429f-b97c-af9f4dfc9939.json and https://artists.proofprofile.net/proofs/artist/d61276c3-a9cc-429f-b97c-af9f4dfc9939.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).