Blockchains and Oracles: Similarities, Differences, and Synergies
"Blockchains and oracles are both critical network infrastructure to developing decentralized applications (dApps) and use similar security approaches like cryptography, decentralized consensus, and cryptoeconomic incentives. However, they also differ in network architecture, service offerings, node composition, and their overall purpose. These differences are synergistic and combine to form hybrid smart contracts—smart contracts that retain the security assumptions of blockchains while achieving extensive feature richness via oracles."
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