thumb|Laura Conti official portrait Laura Conti (31 March 1921 – 25 May 1993) was an Italian anti-fascist partisan, doctor, environmentalist, socialist politician, feminist, and novelist, considered
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 0xe6ceccba8a5659de2eb5d7799120f165380ee61f16d5e964f071bd6a68d5e752. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45ee3b8c-4094-4af1-922f-52afab449ffe.json and https://artists.proofprofile.net/proofs/artist/45ee3b8c-4094-4af1-922f-52afab449ffe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).