Introducing Witnet: smart contracts with real power!

Witnet connects smart contracts to the rest of the world in a decentralized and “trustless” way

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[ Hey, listen! — If you’re more of a visual learner or you’re just in a rush, you should watch the 1-minute explainer video. ]

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Blockchain technology promises to revolutionize business by creating smart contracts that, unlike paper contracts, are impossible to breach.

However, up until now, smart contracts are completely isolated from the rest of the Internet. This is called “the oracle problem”.

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The Witnet protocol connects smart contracts to any data source available online. Sport results, stock prices, weather forecasts or even other blockchains.

The protocol works thanks to a distributed network of mining nodes — called witnesses — who earn Wit tokens as a reward for retrieving web data and reporting it directly to the smart contracts.

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Witnesses are also in charge of validating transactions in the network and bundling them into blocks that get appended to the blockchain periodically.

In doing so, they collect transaction fees and block rewards.

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The probability for every witness to be assigned tasks or mine new blocks is directly proportional to their past performance in terms of honesty: their reputation.

The Witnet protocol is designed to make Wit mining viable even on commodity hardware, thus guaranteeing fairness and decentralization.

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Data provided by Witnet is reliable not because of authority but because it comes from anonymous witnesses who are incentivized to remain honest and to compete each other for rewards.

In addition, veracity of this data is guaranteed by a consensus algorithm that detects fraudsters, who are immediately punished.

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Witnet complements (and completes!) all existing smart contract platforms like Ethereum thanks to “bridge nodes”.

Here’s an article explaining how Ethereum <> Witnet bridge nodes will work in practice:

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Witnet will enable the creation of Digital Knowledge Arks: decentralized, immutable, censorship-resistant and eternal archives of humanity’s most relevant digital data. In short, “decentralized Archive.org”.

You can read more about Digital Knowledge Arks in this other article:

Witnet is an open source project devised by Stampery, the leaders of blockchain-powered data certification. The protocol is being developed by Witnet Foundation in collaboration with a community of independent contributors.

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Ever since Stampery was founded in 2014, they have been on a mission: replacing blind trust with mathematical proof. Witnet is the next step towards this goal.

Stampery is backed by top venture capital funds and angel investors, including Tim Draper and Blockchain Capital.

The Stampery team has also been involved in the development of Aragon, Trailbot, Mongoaudit and Loqui IM.

The Witnet Foundation Blog

A P2P protocol that connects smart contracts to the real…

Adán Sánchez de Pedro

Written by

Tech Lead at @Witnet_io, CTO at @StamperyCo, founder of @LoquiIM. Microelectronics aficionado. I write code, give talks, make music, brew beer and laugh a lot.

The Witnet Foundation Blog

A P2P protocol that connects smart contracts to the real world #DontTrustTheMessenger

Adán Sánchez de Pedro

Written by

Tech Lead at @Witnet_io, CTO at @StamperyCo, founder of @LoquiIM. Microelectronics aficionado. I write code, give talks, make music, brew beer and laugh a lot.

The Witnet Foundation Blog

A P2P protocol that connects smart contracts to the real world #DontTrustTheMessenger

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