Alisa and Alissa are female given names, versions of Alice, used in Russia, Ukraine, Finland, Estonia and other countries. Notable people and characters with these names include: Alisa People Alisa 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 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 0x5b76bbdb51182526250dca0c932f3f6a2bb2e96b18fbfac2eafd5fd7115e3723. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d374ac51-c43b-4cc5-87c0-7da7d9e0d30f.json and https://artists.proofprofile.net/proofs/artist/d374ac51-c43b-4cc5-87c0-7da7d9e0d30f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.