#Blockchains have one major limitation – they are unable to access data from external systems
This is by design, like a computer without an internet connection, they maintain their isolation to guarantee security and streamline efficiency
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Unfortunately, the vast majority of potential use cases for #Web3 require a connection to the outside world
Exchanges need accurate price information, insurance needs data to make decisions on policy payouts and many apps require market information to determine settlements
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The solution to this problem is known as an #oracle, a separate piece of infrastructure that bridges a #blockchain to real-world data
Oracles can source a variety of information including prices, weather, sports scores, election results, geodata, random numbers, etc…
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🔶 Problem
While oracles solve one problem, they introduce another (centralization)
Oracles are vulnerable to hacking, denial of service attacks, insider manipulation & abuse – if one node is compromised, the entire system is ruined
This is known as the “Oracle Problem”
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🔶 Solution
The solution to this problem is to rely on multiple oracles that independently gather data & cross-check their results
This structure is known as a “decentralized oracle network” (“DON”)
In a #DON, a single oracle can be compromised without harming the system
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🔶 Protocol Overview
#Chainlink is the largest decentralized oracle network, offering solutions to a variety of industries including:
• DeFi
• Enterprise
• NFTs and Gaming
• Social Impact
• Climate Markets
Let's take a look at each
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🔹 DeFi
Chainlink provides real-time prices for a variety #DeFi uses including:
Notaby, it provides a random number generator (#VRF) that assists with NFT creation, unpredictable gameplay & fair rewards
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🔹 Social Impact
The protocol partners with several nonprofits, NGOs and other institutions to assist with sustainability, financial inclusion and public goods projects.
Notable partners include Technalia, Lemonade and Arbol
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🔹 Climate Markets
Chainlink provides enterprise-grade middleware that help power climate markets
Notable partners include Hyphen, Floodlight and Correst
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🔶 How it works
The ecosystem is powered by the $LINK token, which has three purposes. It’s:
• Used by clients to pay for services
• Received by oracles as compensation for work performed
• Serves as collateral to ensure that oracles behave properly
Let’s explore:
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Let’s say that a #DEX wants to show the price of #Ethereum on its site. They would:
1. Create a request for data from the Chainlink network to obtain the price of $ETH
2. Submit this request along with payment in the form of Chainlink’s native token, $LINK
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3. Chainlink selects the best oracles based on 1) their reputation and 2) their ability to find the necessary data
4. Oracles will find the requested data and send it back to Chainlink. Oracles must stake $LINK tokens as collateral to ensure proper behavior
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5. Chainlink aggregates the results, chooses the most accurate answers and discards outliers. Oracles that are deemed to be negligent and / or malicious may face penalties and lose some or all of their collateral
6. The information is routed through Chainlink to the DEX
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🔶 Chainlink 2.0
#Chainlink occupies a unique position as the dominant “middleware” layer transferring data between blockchains and the real world
Since it’s already transferring data, it’s not a huge leap to perform computations on that data, store or even transmit it
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This is exactly what the protocol plans to do with the release of Chainlink 2.0
It’s utilizing “hybrid smart contracts” – computer programs that that combine ON-chain data with OFF-chain data – to create a new layer that can perform computations off-chain
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If executed correctly, this hybrid smart contract layer could create a lot of benefits, such as:
1. Scalability
2. Privacy
3. Interoperability
Let’s dig into each
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🔹 Scalability
#Chainlink 2.0 could serve as a de facto “Layer 2” network
Like traditional #L2 solutions like roll-ups, it is designed to perform calculations off-chain and plug the results back into the native chain
This should ↑ throughput, ↓ latency and reduce fees
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🔹 Privacy
As an independent bridge between blockchains and real-world data, Chainlink 2.0 is in a unique position to provide privacy solutions
For instance, #DONs can encrypt off-chain computations and conceal them from their relaying blockchains
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🔹 Interoperability
Chainlink 2.0 would theoretically be able to use its system of hybrid smart contracts to connect different blockchains
Its network of oracles could securely route messages between one another and transfer tokens between chains
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In a way, #Chainlink could function as an “upside down” Cosmos or Polkadot
Instead of connecting multiple #L1s at a base, or “#L0” layer, it could connect them at the #L2 layer
If successful, this could be huge, as it could replace traditional interoperability solutions
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While it’s too early to tell whether Chainlink 2.0 will succeed, if it does it could represent a major paradigm shift in Web3 - a unified “middleware” layer that provides the functionality of a:
• Privacy tool
• Layer 2
• Bridge
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🔶 Market Overview
While there are dozens of oracles serving the #crypto market, Chainlink is by far the most popular with nearly 1,500 connections
Other notable players include Berry and Band Protocol
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🔶 Traction
#Chainlink has achieved significant traction to date, it:
• Has enabled over $6 trillion in transaction volume
The protocol has also partnered with a variety of players in Web 2.0, such as Google Cloud and Oracle and dozens of projects across the #Web3 ecosystem
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#Chainlink also boasts a very strong community, often called the #linkmarines with 79K reddit subs, 900K Twitter followers and 114K Discord members
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🔶 Team
Chainlink was created in 2017 by @SergeyNazarov and Steve Ellis
Bullish on the metaverse but hesitant to purchase individual assets such as PFPs or land?
Many investors use a “pick and shovel” strategy, focusing on protocols building the infrastructure for Web3
@Filecoin is one such project with the potential to 50x-100x
Here’s why
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Filecoin is a decentralized storage protocol that allows anyone to rent out excess storage space on their computer and receive cryptocurrency rewards in return
The project’s market cap is $1.4B and its FIL token currently trades at $4.39
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This thread will provide a deep dive into Filecoin on the following fundamentals:
If you’re willing to invest several hours studying, the two best resources to learn about DeFi are @coingecko’s “How to DeFi: Beginner” and “How to DeFi: Advanced”
Aptos & Sui – love ‘em or hate ‘em, they’re both getting a lot of chatter
@binance covers what makes these “4th generation blockchains” so special in their latest report: "Aptos and Sui: The New Kids on the Block"
Here's a 20 tweet summary to get you up to speed
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Aptos and Sui are two new smart contract platforms that were created to improve:
• Scalability
• Security
• Decentralization
Let’s see how they hope to accomplish these:
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Problem #1: Scalability
Scalability is a major problem for L1s
Networks such as Ethereum suffer from low throughput (e.g. 25 TPS) and higher TPS chains such as Solana have proven unreliable (they’ve had 9 outages!)
This is bad for consumers b/c it translates to high fees