Blockchain
By Sydney TheCMO
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Smart contracts are one of the most ambitious projects of the 21st century and are poised to bring a sea-change in major industries and for better.
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Well, there is not one but two chief reasons behind the delay in large scale adoption of smart contracts for real-world industry use cases.
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First, smart contracts don’t have access to off-chain or external world data. They need data feeds from the off-chain world to function at their full potential lest they are only…
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Smart contracts are unable to push outputs right into off-chain systems. In that light, smart contracts can’t execute payment transactions in conventional fiat currencies on our…
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Oracles can be defined as a cutting-edge blockchain middleware, designed to connect smart contracts with different off-chain resources.
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Oracles are poised as a middle layer in between blockchain and API which translates data for blockchain.
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You will find 3 kinds of oracles today - oracles programmed from scratch, centralized oracles as well as decentralized oracles.
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In regard to the first one, it’s really tedious to code up an oracle right from zero for every use case.
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With centralized oracles, there is one single third party which sources and injects data into smart contracts.
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But, decentralized oracles receive data from multiple sources and hence always allows verification of authenticity of data.
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When it comes to decentralized oracles, Chainlink is certainly a trailblazer. You also have other major decentralized oracles like Band.
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