Blockchain Oracles: They serve as an ideal gateway for the development of hybrid smart contracts.
The continued growth of the crypto market over the past decade has helped greatly fuel the development of blockchain oracles. In their simplest, most fundamental meaning, oracles can be thought of as digital entities that can connect blockchains to an external platform, allowing the former to leverage smart contracts and execute commands based on inputs and outputs coming from various real-world sources.
More specifically, oracles serve as an ideal gateway for decentralized Web 3.0 systems to gain access to a wide range of data streams, legacy systems, etc., enabling the development of “hybrid smart contracts”.
These offerings are able to combine on-chain code and off-chain infrastructure to help build future-ready decentralized applications (dApps) capable of reacting to real-world events while being fully integrated with traditional ones systems to be interoperable.
Blockchain Oracle: Some Examples
Considering how many different types of off-chain resources exist today, there are quite a number of blockchain oracles available to users now. Some prominent examples are:
- Enter Oracle: These are by far the most used types of oracles on the global tech landscape today. They are designed to collect data from real (off-chain) environments and deliver it to a specific network. One of the most common uses of these oracles is “live price feeds”.
- spend oracle: These systems are primarily designed to allow smart contracts to send commands off-chain, allowing the execution of niche transactions. Exit oracles are most commonly used by decentralized banks and IoT networks.
- Cross-chain Oracles: As the name seems to imply, these unique oracles are able to read/write information across a number of different blockchains, allowing data from one network to be used to trigger specific actions in another system.
- Calculating Oracles: While not as common as their counterparts above, this new generation of oracles are designed to leverage secure off-chain information to provide users with decentralized services that would otherwise be impractical to access.
Blockchain oracle use cases are growing rapidly
Due to the unique financial and technological proposition of blockchain oracles, smart contract developers continually use these platforms to build a range of decentralized applications that can be deployed across a variety of different domains. Some of these rooms include:
Decentralized Finance (DeFi)
The success of the decentralized finance (DeFi) sector largely depends on oracles able to feed platforms (operating in this space) with real-time financial data, specifically information on various digital assets and speculation-driven markets. For example, DeFi money markets use the power of price oracles to assess an individual’s borrowing ability and determine if their existing positions are under-collateralized (and therefore subject to liquidation).
Many oracles are able to track changes related to dynamic NFTs, which can change their native properties depending on external events, including temperature jumps/drops, time of day, etc.
environmental sustainability
There are oracles designed to support hybrid smart contracts with causes related to environmental sustainability that allow them to promote green practices through various verification techniques. In this regard, certain oracles are able to feed smart contracts with environmental data ranging from sensor recordings to spacecraft images to live AQI measurements (and everything else in between).
insurance
Entry oracles play an important role in ensuring that insurance-centric smart contracts are able to verify the occurrence of insurable events when a monetary claim is submitted by an individual.
Mainstream utility for businesses
Thanks to the use of cross-chain oracles, mainstream companies have the ability to route large amounts of data between their backend systems and external blockchain platforms.
The Impact of Oracles on Web 3.0
Right at the start, it should be noted that oracles have helped bring to life many of the core philosophies underlying Web 3.0 (e.g. transparency, decentralization, etc.). For example, they allow Layer 1 protocols – like Bitcoin, Ethereum, etc. – to collect a wide range of information from secondary/external blockchains as well as off-chain databases.
To illustrate, let’s take an example of where a regulator would want to ensure the veracity of an individual’s identity. This can easily be done with decentralized systems so that the regulator can simply use an oracle to communicate with each state’s proprietary driver database and verify that the information provided is correct. Once the person’s identity has been verified, a smart contract can be deployed to automatically facilitate certain actions without the need for human intervention.
Well-known blockchain oracle projects you should know about
chain link
Chainlink can best be described as a decentralized network of nodes capable of providing its users with a range of real-time data transmitted from off-blockchain sources to on-blockchain smart contracts via the use of oracles. Technically, Chainlink’s smart contracts are pre-specified and capable of not only evaluating live data, but also automatically executing specific actions when conditions are met.
LINK is the native crypto token of the Chainlink ecosystem. Not only can it be paid for a variety of services within the network, but it can also be used for other, external purposes. For example, they can be used to facilitate deposits initiated by node operators (as and when ordered by contract builders).
QED
QED is essentially a decentralized oracle that can seamlessly connect a range of blockchain networks, smart contracts, and external data sources. QED’s precursor, DelphiOracle, operates algorithmic stablecoins, prediction markets, as well as other dApps operating in the EOSIO ecosystem.
Due to its extremely robust, dynamic operating framework, QED is able to allow its oracle ecosystem to use external collateral as a bond in relation to its smart contracts, thereby mitigating many systemic risks that could affect the platform in the long run (such as poor network performance).
API3
From the outside, API3 can be seen as a collaborative project that aims to provide a variety of API services for smart contract platforms in a way that is not only based on transparency (i.e. decentralized), but also requires a minimum level of trust between its participants.
More specifically, the project is governed by a Decentralized Autonomous Organization (DAO) – also known as API3 DAO – which ensures that all of its coding data is available to developers in an open-source format, while maintaining a high level of operational transparency is maintained.
I do not know
Similar to many of the above projects, Witnet can be viewed as a decentralized oracle network (DON) designed to connect smart contracts to real-world data sources. More specifically, the platform allows third-party software to collect information published by any web address at any given time – complete with verifiable evidence of the data’s accuracy.
Witnet boasts a well-developed blockchain ecosystem along with a native crypto token that miners can earn by “retrieving web content, confirming it, and delivering it to the system’s customers.” Finally, WIT can be used to pay for a variety of internal operations such as: B. Incentives for witnesses to perform various Retrieve-Attest-Deliver (RAD)-related tasks.
Do you have anything to say about blockchain oracles or something else? Write to us or join the discussion on our Telegram channel.
Disclaimer
All information contained on our website is published to the best of our knowledge and belief and for general information purposes only. Any actions taken by the reader based on the information contained on our website are entirely at your own risk.
Learn Crypto Trading, Yield Farms, Income strategies and more at CrytoAnswers
https://nov.link/cryptoanswers
Comments are closed.