Aspide, named for the asp, is an Italian medium range air-to-air and surface-to-air missile produced by Selenia and its successors, Alenia Aeronautica and MBDA that was developed in the 1970s to repla
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 0xeea66f81abff77fb17a923a29dca2a95fc4b63191e6eca5bc2b2187e003f0b33. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90ab3ef9-4aad-4699-a8e4-a4b7b3e0ae56.json and https://artists.proofprofile.net/proofs/artist/90ab3ef9-4aad-4699-a8e4-a4b7b3e0ae56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).