upright|thumb|Portrait of a woman holding her young child, upright|thumb|Statue of a mother with children at the Monumental Cemetery of Staglieno in Genoa A mother is the female parent of a child. 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dce59a9384b0cea347f82c3bb1a765c326a23333fb3c2af2c7181e5c42c3a9e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fc10216-195c-4d75-b2ee-ea3e0de09a2d.json and https://artists.proofprofile.net/proofs/artist/5fc10216-195c-4d75-b2ee-ea3e0de09a2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).