It’s been a busy month of constructing on Chainlink, with the conclusion of three hackathons that featured successful initiatives with a plethora of recent functionalities for decentralized purposes due to safe and dependable off-chain connections. Not solely did we host the very first Chainlink Digital Hackathon, however we additionally participated and awarded prizes on the ETHWaterloo Hackathon and the Kyber DeFi Digital Hackathon. We’re impressed by each the vary of various purposes and the extent of real-world enterprise worth demonstrated by individuals utilizing related sensible contracts.
The Chainlink Digital Hackathon
This October we hosted the first-ever Chainlink Digital Hackathon to determine initiatives with the very best real-world purposes that leverage exterior information, occasions, and/or techniques. We awarded bounties to the highest three initiatives, together with six Choose’s Selection awards and a prize for the Most Revolutionary challenge. Together with our nice group of mentors, we hosted a number of developer workshops and loved the alternatives to work together with our neighborhood of sensible contract builders and assist them construct with Chainlink!
Incomes the coveted first-place honors is LinkPal, a challenge created by Vitaly Volozhinov. LinkPal is a decentralized escrow utility that makes use of sensible contracts to facilitate peer-to-peer (P2P) trades between ETH and PayPal with out counterparty danger or third occasion change sign-ups. To make sure trades are trustless, sellers lock up their ETH as collateral in a wise contract which isn’t launched till the consumers’ fee bill on Paypal is confirmed. As soon as a number of Chainlink oracles confirm that the fee bill has been made to the vendor for the right amount and forex as outlined within the sensible contract, the locked-up ETH is launched and despatched to the client through a beforehand provided public key. LinkPal is a wonderful instance of a compelling real-world use case involving present infrastructure that may be addressed in a safe decentralized method by aggregating the responses of a number of Chainlink oracles.
Taking house the second-place prize is hacker Mikhail Lazarev of Cerebus Pockets. The Cerebus Pockets offers customers with a further layer of safety when submitting Ethereum transactions by enabling two-factor authorization through push telephone notifications. Each time the customers indicators a transaction with their personal key, they obtain a 2FA code to their telephone that have to be entered to finish the transaction. By means of this design, customers can forestall malicious hackers from accessing their funds, even when their personal secret’s stolen. Cerebus Pockets makes use of Chainlink oracles to confirm the 2FA code was entered in a specified period of time utilizing an alarm clock API, in addition to to entry the Cerebus server to verify the right 2FA code was entered.
Coming in third place is Flyt, a submission by developer Robin Thomas. Flyt is a decentralized flight insurance coverage utility that permits customers to acquire flight insurance coverage insurance policies in a trustless and personal method. As an alternative of trusting the insurance coverage firm to set truthful charges and settle claims, Flyt makes use of sensible contracts and internet information (APIs) retrieved by Chainlink oracles to calculate coverage premiums (utilizing a weighted common based mostly on flight and airport rankings) and settle claims robotically inside 24 hours (based mostly on flight standing).
The Most Revolutionary Award
Receiving the Most Revolutionary Award is Whole Return Swap, a five-member crew from Safe Information Hyperlinks, an official node operator within the Chainlink ecosystem. Whereas the staking function shouldn’t be finalized nor dwell on mainnet in the mean time, Whole Return Swap is a Dapp design that enables Chainlink node operators to hedge the worth volatility of the LINK token whereas it’s staked as collateral throughout node providers. Nodes that wish to scale back their publicity to cost actions can promote that danger to a counterparty as an artificial asset tied to the worth of the LINK token. Nodes acquire curiosity on the artificial token mortgage, whereas the counterparty obtains leveraged artificial publicity to LINK.
The Choose’s Selection Awards
Good Advertising Campaigns makes use of sensible contracts and oracles to automate funds to advertising businesses based mostly on attestations from Chainlink oracles concerning the variety of distinctive guests to the web site. With advertising businesses usually at odds with their prospects in regards to the ROI of a advertising marketing campaign, particularly as a result of problem of acquiring correct information metrics concerning its effectiveness, Good Advertising Campaigns solves this drawback by having Chainlink oracles acquire an simply verifiable information metric like new/distinctive guests to then use as the idea of a trustless advertising service settlement.
Steam Dealer makes use of Chainlink oracles and the Steam API to implement safe, decentralized funds for in-game belongings on the Steam gaming platform. Steam Dealer is a enjoyable and relatable challenge that showcases how Chainlink’s capabilities can be utilized by anybody to resolve the kinds of issues all of us expertise on a regular basis, resembling buying and selling possessions with out counterparty danger.
Contractor is an utility that creates absolutely coded sensible contracts based mostly on user-selected options. These options embrace selecting the kind of sensible contract, particular oracles, variety of oracles, API connections, aggregation methodology, and different further choices. Contractor makes it straightforward for non-technical folks to deploy a wise contract with all of the options they want for fulfillment.
Random World is a platform that hosts open-source and provably truthful playing purposes, resembling heads or tails and flipping cube, which are constructed utilizing sensible contracts and a random quantity generator. Incorporating Chainlink’s exterior adapter for Random.org, RandomWorld video games have entry to exterior, tamperproof randomness to make use of as the idea for his or her odds, versus counting on internally produced odds which are closed supply.
Fiat Gateway makes shopping for and promoting between crypto and fiat currencies a lot simpler through the use of sensible contracts on the backend for escrow, in addition to confirming trades through safe, decentralized Chainlink oracles. “Makers” present fiat and/or crypto liquidity to “Takers” (consumers/sellers) for a makers payment, with all trades being depending on oracles that verify profitable fiat funds between events on community like WePay and PayPal.
The Anti-Social Problem incentivizes customers to take breaks from social media by way of a skin-in-the-game method to utilization. To take part, customers lockup collateral in a wise contract, which they’ll solely recuperate in the event that they keep off social media for a specified period of time. In the event that they produce any social media exercise, which is tracked and reported to the sensible contract by Chainlink oracles, they lose their collateral and it’s distributed equally to individuals that resisted temptation all through everything of the problem.
From November eighth – 10th, we attended the ETHWaterloo occasion in Canada the place Developer Advocate Dan Forbes hosted a Chainlink Developer Workshop about constructing real-world purposes utilizing off-chain assets. We additionally participated within the hackathon by awarding three prizes to individuals with the very best working Chainlink-enabled sensible contracts.
DeFi-dy, a four-person crew consisting of Jean-Baptiste Terrazzoni, Kendrick Tan, Sneh Koul, and Madhur Kumar Sharma, took house the highest honors. As an alternative of limiting investor/buying and selling hypothesis to token worth motion, DeFi-dy permits customers to take a position on an organization’s efficiency. To allow this, DeFi-dy points artificial belongings which are valued based mostly on the basics of a selected protocol. The elemental worth of the protocol, which within the case of their demo is Compound, is calculated based mostly on a weighted algorithm that takes into consideration metrics resembling recognition, utilization, collateralization ratio, borrowing energy, provide energy, and so forth. Chainlink oracles retrieve these information metrics off-chain and feed them into the sensible contract to compute the worth of the artificial asset.
CarbonGuilt, a four-person crew made up of Jeremías Díaz, Vijay Kandy, Victor Vicente, and Bilal Alghazi, obtained the 2nd place prize. With proof-of-work blockchains like Ethereum having environmentally intensive consensus algorithms, CarbonGuilt offers Ethereum customers the choice to offset their carbon footprint. CarbonGuilt makes use of Chainlink oracles to collect information from an assortment of power consumption and carbon emission sources and relay it on-chain. As soon as on-chain, the sensible contract makes use of that information to compute a carbon consumption footprint, which customers can choose to pay as a donation to trusted organizations combating in the direction of lowering the world’s carbon footprint.
WeatherBet, a three-person crew of Christina Chen, Christian Agnew, and Jake Munsterberg, gained the third place bounty. WeatherBet permits customers to make bets utilizing ETH on what the climate will probably be like on a sure day in a selected location sooner or later. Chainlink oracles are used to collect correct climate information from trusted APIs and mixture them collectively to find out the outcomes of bets.
Kyber DeFi Digital Hackathon
From September ninth – October 28th, we participated as a Tech Accomplice within the Kyber DeFi Digital Hackathon, awarding one prize to the very best working Dapp that leverages each Chainlink and Kyber.
Chainlink x Kyber Prize
EthOptions, a four-person crew of Parinaa Anand, Nikhil Yadav, Siddharth Bhalla, and Mohsin Hussain, obtained the Chainlink bounty. Choices are a important a part of the monetary system. They permit customers the power to hedge the worth motion of an asset by buying an choices contract, for a premium, that enables them to purchase that particular asset at a specified worth sooner or later. EthOptions is a decentralized choices buying and selling platform the place customers from everywhere in the world can purchase and promote choices contracts, versus limiting participation to classy events. Chainlink oracles are used to attach the choices contracts with dependable market costs through our CoinMarketCap exterior adapter. These costs are used to find out payouts upon the choice being exercised throughout the allotted timeframe specified within the contract.
We’re thrilled to allow so many distinctive sensible contract designs through connection to off-chain assets. It’s solely the beginning of what’s potential too, as extra information suppliers, node operators, challenge integrations, and exterior techniques change into built-in into to the Chainlink community and accessible for sensible contract consumption. We sit up for continued participation in quite a lot of hackathons as a means of fostering extra developer engagement and persevering with to develop the Chainlink ecosystem.