Ricci () is an Italian surname. Notable Riccis Arts and entertainment Angelo Maria Ricci (1946–2025), Italian comics artist Antonio Ricci (painter) (c. 1565–c. 1635), Spanish Baroque painter of Ita
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 0x210f044f24296dea99465674c2c775dcb0b9f6a2cfb36198c5f60beec99dbb17. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f943d034-f972-4fd2-b172-3230fc4b00f9.json and https://artists.proofprofile.net/proofs/artist/f943d034-f972-4fd2-b172-3230fc4b00f9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).