Topic: Chainlink (LINK) - middleware that connects smart contracts to external world - page 4. (Read 23771 times)

Fairly and Securely Selecting Lady Luck Winners Using Chainlink VRF



Lady Luck is pleased to announce our live integration of Chainlink Verifiable Random Function (VRF) to access secure and verifiable random numbers used to select winners for each Lady Luck Lottery draw. By leveraging Chainlink VRF — the industry-leading Random Number Generator (RNG) solution for smart contracts — Lady Luck is now able to host fully decentralised, automated, and provably fair lotteries.

Transparency and trust are two core principles of Lady Luck. Trust is obtained through the security of VRF, making it impossible for the Lady Luck developers, oracles, or the public to tamper with the winner selection process. Additionally, the seed used to generate the VRF result is made completely public after each VRF call, providing transparent verification of the RNG’s integrity. In line with these core principles, Lady Luck has been designed to work entirely on-chain, negating the need for trusting any 3rd party organisations or services.

Read more: https://lando-lady-luck.medium.com/fairly-and-securely-selecting-lady-luck-winners-using-chainlink-vrf-7f84e724adea

Blockchain-based musician platform #sayBLOWE will integrate Chainlink to enable dynamic #NFTs that represent hip hop’s most celebrated artists. #Chainlink oracles will update NFTs’ on-chain trending scores based on artists’ real-world performance data

sayBLOWE is a blockchain-based platform with a mandate to be the catalyst in the advancement of Hip Hop culture. In order to meet that goal, we’re excited to announce our intention to leverage the market-leading Chainlink Oracle Network to create dynamic Hip Hop NFTs on our new platform.

These dynamic NFTs will be unique digital assets that are digitally depicted using famous artists, with each NFT’s value based on that Hip Hop artist’s career as determined by the Hip Hop community and a variety of real-world data sources delivered by Chainlink Oracles.

sayBLOWE Will Use Chainlink Oracles to Create Dynamic Hip Hop NFTs

Chainlink’s decentralized oracle networks support the growth of #DeFi by securely bringing external data on-chain. Easily integrate #Chainlink’s pre-built WAVES/USD Price Feed to build derivatives markets around @wavesprotocol’s native asset, already relied on by @Bondedfinance.

https://data.chain.link/waves-usd

Uniqly Will integrate chainlink VRF for our limited collection of NFT T-shirt drop.

On the Uniqly platform, anyone will be able to create their own unique landing page and list their products, which are either created in our generator or deposited via escrow. Users can then trade these NFT tokens backed by real-world items in our digital marketplace. This allows users to easily trade physical products, even those that were not created in our Generator, including clothing, works of art, collectibles, and more. Additionally, some limited-edition NFT collections will be available for users that lock UNIQ tokens in escrow.

In order to reward our early community of supporters that participate in the upcoming Uniqly launch, we are conducting an ETH giveaway for any users who bought t-shirts or select NFTs. To ensure the giveaway is provably fair and transparent, we’re employing Chainlink VRF to obtain a verifiable source of randomness used to select winners.

Chainlink is the most widely used decentralized oracle network throughout DeFi, Blockchain Gaming, and NFTs, securing billions in value for leading smart contract applications. Because Chainlink VRF generates a cryptographic proof alongside its random number generation, users have verified on-chain proof that each winner is selected in a truly random manner that neither the Chinlink oracle, external entities, or Uniqly team can manipulate. This creates a transparent and exciting element to the giveaway, ultimately ensuring that each participant has an equal chance of winning prizes.

Read more: https://uniqly.medium.com/uniqly-will-integrate-chainlink-vrf-for-our-limited-collection-of-nft-t-shirt-drop-1bc7b2c54cfc

Chainlink VRF gives devs a tamper-proof RNG for building gaming dApps & dynamic NFTs that require unpredictable yet provably fair outcomes. Explore our Intro to VRF docs to learn how to leverage a verifiable source of randomness in your smart contract app.



Generate Random Numbers in your Smart Contracts

Chainlink VRF (Verifiable Random Function) is a provably-fair and verifiable source of randomness designed for smart contracts. Smart contract developers can use Chainlink VRF as a tamper-proof RNG to build reliable smart contracts for any applications which rely on unpredictable outcomes:

Blockchain games and NFTs
Random assignment of duties and resources (e.g. randomly assigning judges to cases)
Choosing a representative sample for consensus mechanisms

Learn how to write smart contracts that consume random numbers: Get a Random Number.

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On-chain Verification of Randomness

Chainlink VRF enables smart contracts to access randomness without compromising on security or usability. With every new request for randomness, Chainlink VRF generates a random number and cryptographic proof of how that number was determined. The proof is published and verified on-chain before it can be used by any consuming applications. This process ensures that the results cannot be tampered with nor manipulated by anyone, including oracle operators, miners, users and even smart contract developers.

Read more about Chainlink VRF in our announcement post.

.@SportMonks_com launched its own #Chainlink node on mainnet, giving smart contracts on-chain access to premium, cryptographically signed sports data, starting with cricket. This enables the creation of new prediction markets, sports-based #NFTs, and more.

https://www.sportmonks.com/blogs/sportmonks-launches-live-chainlink-node-to-provide-smart-contracts/

We are pleased to announce that the SportMonks Chainlink node is live and fully operational on mainnet, enabling smart contracts to access our premium sports data, starting with cricket, but with plans to extend to football/soccer and F1. Developers can now call our Chainlink node to get real-time and cryptographically signed sports game results and toss results, which can then be used to build new types of decentralized prediction markets, fantasy sports, and dynamic NFTs.

https://twitter.com/chainlink/status/1388131324846911493?s=21

Chainlink Partners with UNICEF Innovation Fund to Support Blockchain-Enabled Applications in Emerging Markets

The Chainlink Community Grant Program provides financial resources to the many development teams and researchers building a more functional, accessible, and socially impactful Chainlink Network. We encourage talented individual developers and development teams to apply to the grant program here, or if you are a researcher and want to collaborate, contact us.
As part of our Social Impact Initiative centered around our mission of creating a more economically fair world using smart contracts, we actively support projects that share this goal of applying cryptographically enforced systems in a manner that is driven less by vague brand promises and more by the value that institutions and individuals actually provide. As part of furthering this initiative, we’re excited to award a grant to support the UNICEF Innovation Fund, a pooled fund designed to finance startups building early stage, open-source technology that address key global challenges; and the UNICEF CryptoFund, a new financial vehicle allowing UNICEF to receive, hold, and disburse cryptocurrency. The Chainlink Community Grant will go towards supporting the startups building blockchain-based solutions that UNICEF works with by offering funding, mentorship, and access to our expertise.
Some of the specific objectives of the Chainlink’s grant to support the UNICEF Innovation Fund and CryptoFund are:
Finance early-stage, free, and open-source blockchain-enabled software, specifically designed to benefit emerging markets by fostering technological leaps that lead to major advancements in overall quality of life.
Provide domain-specific expertise and additional resources to support blockchain-focused startups working with UNICEF’s CryptoFund.
Accelerate blockchain as a force for good by expanding the capabilities of startups building solutions for populations where innovative applications are most needed.
Launched in 2016, UNICEF’s Innovation Fund enables UNICEF to learn from and shape markets of emerging technology by investing in and supporting companies in spaces such as blockchain, virtual and augmented reality, machine learning, and artificial intelligence. Together, the CryptoFund and Innovation Fund provide both fiat and cryptocurrency investments to early-stage startups.
By contributing to the UNICEF CryptoFund, Chainlink will be able to further support early-stage companies who are scaling their operations and increase the amount of people who can benefit from social good projects. Some of the initiatives the CryptoFund supports with its funding include applying AI analytics to public services in Argentina, making sensitive clinical data portable and private in Mexico, using an interactive voice response platform in Cambodia to educate people about Covid-19, and improving food and vaccine distribution in India.
Support for the UNICEF CryptoFund is just one of the many social impact initiatives being supported by the Chainlink Grant Program, ranging from helping smallholder farmers get crop insurance and increasing transparency in state lotteries to incentivizing smart-contract based government improvements through hackathon prizes and funding education programs to advance global knowledge on the power of blockchain technology. We remain fully committed to building an economically fair world and plan to continue supporting developers who want to apply hybrid smart contracts in a manner that enables major technological leaps in emerging markets and drastically reduce systemic risk within established markets.

Read more : https://blog.chain.link/chainlink-partners-with-unicef-innovation-fund-to-support-blockchain-enabled-applications-in-emerging-markets/amp/

Tomorrow afternoon, we will be launching one of our new products - #Prediction.

Prediction revolves around a decentralized oracle, for which we are integrating @Chainlink, to access a tamper-proof and up-to-date price reference every 5 minutes.

EthernityChain will use Chainlink VRF & Price Feeds to provide provably fair minting & exchange rates for its Authenticated NFT platform. aNFTs are designed by globally recognized artists and creators, with a portion of sales going to charitable causes.

https://ethernitychain.medium.com/ethernity-to-integrate-chainlink-for-secure-minting-and-pricing-of-anfts-69e5f761ab073

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Premium data provider @finageltd has launched a Chainlink node live on mainnet, giving DeFi developers on-chain access to real-time, cryptographically signed benchmark stock prices and sector performance data, with other data types planned for the future.

https://finage.co.uk/blog/finage-launches-live-chainlink-node-to-bring-premium-global-market-data-to-defi

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We’re excited to award a grant to @ChainSafeth for the expansion, improvement, & ongoing support of the #Chainlink Oracle Pallet, enabling devs to easily build hybrid smart contracts on @Polkadot & @kusamanetwork parachains as well as @substrate_io chains.

https://blog.chain.link/chainsafe-receives-a-community-grant-to-expand-the-chainlink-oracle-pallet-on-polkadot/

Premium data provider @finageltd has launched a #Chainlink node live on mainnet, giving #DeFi developers on-chain access to real-time, cryptographically signed benchmark stock prices and sector performance data, with other data types planned for the future.

Read more : https://finage.co.uk/blog/finage-launches-live-chainlink-node-to-bring-premium-global-market-data-to-defi

Finage is pleased to announce that our Chainlink node is live and fully operational on mainnet, providing smart contract applications access to premium stock, forex, cryptocurrency, indices, ETFs and financial statements market data. Developers can now call our Chainlink node to get real-time and cryptographically signed price benchmark stock and sector performance data, with other data types becoming available in the future like reference data and historical end-of-day prices.
 
Our wide array of market data can be leveraged to secure key functions within DeFi applications, including to settle on-chain derivatives products, rebase stablecoins according to their pegged reference asset, or price synthetic token swaps around traditional stocks.

Sushi Integrates Chainlink Price Feeds to Secure Kashi Lending and Margin Trading Markets

Sushi recently launched Kashi, an innovative lending and margin trading protocol that uses a unique risk isolation architecture in order to support a broad set of previously inaccessible token pairs for lending. In order to ensure that Kashi markets are secured by a robust and proven oracle solution, we are excited to announce that we have integrated the widely used Chainlink Price Feeds on the Ethereum Mainnet and Binance Smart Chain.



Traders can now create custom Kashi markets using any of Chainlink’s large collection of pre-built and collectively funded Price Feeds. Price data provided by Chainlink oracles play a key role in securing Kashi markets by ensuring accurate and up-to-date asset valuations are referenced during loan issuance and the liquidation, thereby establishing protection against undercollateralization. Chainlink’s historical performance in securing billions for the DeFi ecosystem and easy integration is the reason as to why we launched with Chainlink, while other oracle solutions will be integrated into Kashi over the coming months.



Sushi Integrates Chainlink Price Feeds to Secure Kashi Lending and Margin Trading Markets

Chainlink Price Feeds are operating live on the layer-2 @StarkWareLtd ZK-Rollup used by top dApps such as DeFi perpetuals platform @dydxprotocol, providing a secure, accurate & reliable source of financial market data even during extreme price volatility.

More information: https://medium.com/starkware/oracle-price-feed-on-starkex-2b15a3ca122

GAUGECASH, The First Decentralized Monetary System is upgrading its Oracle Mechanism to Chainlink before going live.

We are excited to announce that GAUGECASH will integrate market-leading oracle network Chainlink to access a GAU/USD decentralized price feed. Our token, GAU, represents an index of weighted averages from 35 fiat currencies. The Chainlink-powered GAU/USD Price Feed will ensure that the Gauge Index is priced against USD at fair market value and without possible tampering.

GAUGECASH uses various APIs from international financial institutions to calculate the basket’s weighted average index price. This weighted index represents a broad range of fiat currencies, resulting in a stable basket resistant to regional monetary policy movements. It also retains stability beyond prominent single-fiat pegs such as USD-based stablecoins. The GAUGECASH vision is to use this stable index as a benchmark currency to power our new global peer-to-peer monetary system.

Chainlink’s market-leading oracle networks provide us with a proven plug-n-play oracle solution that currently secures billions in USD value across DeFi. Chainlink being the new oracle solution for GAU/USD is a critical element to our design in bringing off-chain FOREX market data into blockchain ecosystems. Although initially launched on Ethereum, the GAUGECASH system is fundamentally blockchain agnostic, thus we require an oracle like Chainlink that supports various other blockchain environments.

We chose Chainlink because of its clear superiority in technology, security, and market-dominance. Some of the Chainlink Price Feed features that add significant value to GAUGECASH include:

More information, please click here

OptionPanda (https://opanda.io) has successfully integrated the market-leading Chainlink Price Feeds on mainnet to provide safe and accurate price data for its option trading pairs on BSC. This integration enables users to obtain timely premium quotations when trading, thereby enabling trading decisions to be based on reliable information. It also allows for the precise and tamper-proof settlement of options at the time of expiry, along with future plans for integration for Implied Volatility feeds. By relying on the feeds from Chainlink, OptionPanda manages to avoid a single point of failure that may occur during data procurement and transmission, and thereby provides users with better decentralized option trading services.

Our initial launch involves using the following Chainlink Price Feeds: BTC-USD, ETH-USD, and BNB-USD, with the ability to easily scale up to support more assets or even more exotic option types.

Oracles Empower DeFi Options
Chainlink is the most widely used oracle solution in the market. Through retrieving information from quality data aggregators, Chainlink creates highly accurate and usable on-chain prices that are immune to data manipulation and downtime. Users can also access publically-available visualization tools to oversee all price feeds in real time, including current price, price updating method, node maintenance, etc.



With Chainlink, developers can connect any blockchain to provide a uniform framework for all trading pairs on OptionPanda both now and in the future. The Chainlink integration enables Option Panda to access secure, reliable, and real-time price information which possesses the advantages of high stability and tamper resistance. Chainlink achieves this through several technical features:

• High-Quality Data — data is sourced from numerous premium data aggregators like BraveNewCoin and Kaiko, leading to volume-adjusted global market prices with robust market coverage.

• Reliable Nodes — price feeds are secured by a decentralized network of independent, security-reviewed, Sybil-resistant oracle nodes run by leading blockchain DevOps teams with a proven history of hyper-reliability.

• Decentralized Infrastructure — both the data sourcing and transmission on-chain are decentralized, removing any central point of failure.

• Blockchain Agnostic — Chainlink is blockchain agnostic and already live on BSC, making it straightforward integration with the ability to quickly expand Option Panda into new blockchain environments in the future.

Blockchain-based gaming platform @lepriconio will use Chainlink VRF for its Lucky Pot O’ Gold NFT draw. The tamper-proof and verifiable nature of Chainlink VRF ensures Lepricon provides all early NFT purchasers provably fair results.

Read more : https://t.co/3AlzhqVG2F

I made an experiment taking some "suggested coins" from this topic
https://bitcointalksearch.org/topic/the-next-100x-1000x-coin-2106360 "The next 100x or 1000x coin"
where people trying to guess/suggest the coin that could receive a big pump during end of 2017 early 2018.
Chainlink has been one of the best performer according my blog post dedicated to the coin! Take a look if you like.
https://www.publish0x.com/bitbollo-cryptocurrencies-blog/a-depth-analysis-of-bitcointalkorg-speculation-thread-the-ne-xvwpvqk

Decentralized lending protocol @LendHubDefi will integrate #Chainlink Price Feeds natively on @HECO_Chain to ensure that all loans are issued and liquidated in accordance with aggregated, tamper-proof, volume-adjusted price feeds reflective of global markets.

https://twitter.com/chainlink/status/1374375473841537041?s=21

A Non-Fungible Token (NFT) is a cryptographically secured token existing on the blockchain that represents ownership of something unique. NFTs can represent tokenized ownership claims to real-world assets like a specific piece of land, or actual ownership of digital assets as in a rare digital trading card. Unlike fungible tokens such as Bitcoin where one BTC can be exchanged for any other BTC, each NFT is completely unique and represents verifiable digital scarcity.

Most of the NFT community is familiar with the idea of storing unique items as pieces of data on the blockchain. The blockchain acts as a standardized medium for listing and trading non-fungible assets that are transparent, globally accessible, and more liquid. It also provides a protected environment to store a trusted set of historical records about an asset dating back to its provenance.



Create dynamic nfts using chainlink oracles

Introducing the GovTech Prize at the Chainlink Virtual Hackathon

Information and communication technology has fundamentally changed the way governments operate, both internally between agencies and externally with the public, driving more efficient and effective ways of sharing information, providing services, and facilitating civic involvement. Now with the continued maturation of blockchains, smart contracts, and oracle technology, a similar transformation is underway in how governments track and manage value within society, opening up novel methods of improving the efficiency, transparency, and trust of government services.

More information: https://blog.chain.link/introducing-the-govtech-prize-at-the-chainlink-virtual-hackathon/amp/