Sorrenti is a surname. Notable people with this surname include: Alan Sorrenti (born 1964), Italian singer and composer Clara Sorrenti, aka Keffals (born 1994), Canadian Twitch streamer Davide Sor
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 0x9bd616efa3fbb5f5ec035836b628c7365f73511ee2c430329db73ccf17a18925. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/06d3420e-ca08-499e-afe3-09c5e23e0940.json and https://artists.proofprofile.net/proofs/artist/06d3420e-ca08-499e-afe3-09c5e23e0940.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.