The authenticity proofs can build upon different technologies such as auditable virtual machines and Trusted Execution Environments.Ī more detailed overview of Provable authenticity proofs is provided in the Authenticity Proofs section of this documentation. This is accomplished by accompanying the returned data together with a document called authenticity proof. The solution developed by Provable is instead to demonstrate that the data fetched from the original data-source is genuine and untampered.
It is inherently inefficient: all the parties participating will require a fee and, for every request, it will take time before reaching a sufficient number of answers. It requires a predefined standard on data format. Unfortunately, this approach has severe limitations: This type of system can be considered a decentralized oracle system. One solution is to accept data inputs from more than one untrusted or partially trusted party and then execute the data-dependent action only after a number of them have provided the same answer or an answer within some constrains. The need for such figure arise from the fact that blockchain applications, such as Bitcoin scripts and smart contracts cannot access and fetch directly the data they require: price feeds for assets and financial applications weather-related information for peer-to-peer insurance random number generation for gambling.īut to rely on a new trusted intermediary, the oracle in this case, it would be betraying the security and reduced-trust model of blockchain applications: which is what makes them interesting and useful in first place. In the blockchain space, an oracle is a party which provides data. Provable is the leading oracle service for smart contracts and blockchain applications, serving thousands of requests every day on platforms like Ethereum, Rootstock, R3 Corda, Hyperledger Fabric and EOS. Tutorials: tutorials on our Provable integrations. Pricing: information on our pricing model for production uses. Security Deep Dive: how Provable's Authenticity proofs works. Development Tools: a list of tools to aide development of Provable-integrated smart contracts. Quick node pricing how to#
Integrations: how to integrate a blockchain application with Provable.Data-Sources: information regarding the types of data sources Provable supports.General Concepts: the main concepts behind Provable.
Background: the rationale behind the Provable's Oracle Model.The documentation is divided in the following sections: Welcome to the Documentation of Provable!
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