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Blockchain oracles act as intermediate links connecting the blockchain to real-world data. Thus, the Binance Oracle connects smart contracts with reliable and verified data sources. It was initially developed for BNB Chain, but it may expand to other networks in the future. Currently, this service can be used in any project based on BNB Chain. With Binance Oracle, developers don't have to worry about the source and use of data and focus on other important aspects of their blockchain projects.
Introduction
Blockchain oracles are a critical element of the blockchain ecosystem. Without them, smart contracts would not be able to receive any data from the real world. The Binance Oracle is a blockchain oracle that provides smart contracts with access to real-world data sources needed for blockchain applications. This ensures that smart contracts receive the correct data at the right time.
What is an oracle on a blockchain?
Blockchain oracles are services that act as a bridge between the blockchain and the real world, giving smart contracts access to data sources outside of their native networks. In other words, they act as a bridge between on-chain applications and off-chain data.
As a result, off-chain events are converted into on-chain events that can be recognized by smart contracts. In this case, the transmitted information can be anything: prices for tokens or shares, results of football matches, weather forecasts and much more.
Blockchain oracles can also verify the validity of data, but are not the source of it. They represent an additional layer that collects and verifies the authenticity of information, and then transmits it to its destination.
Thanks to oracles, blockchain technology can be used in agreements. For example, two friends want to bet on a football match. First, they agree on the terms and lock in their funds in a smart contract. The blockchain oracle then tells the smart contract the result of the game and then sends the funds to the winner of the dispute.
There are different types of blockchain oracles, and one oracle can fall into several categories: software, centralized, decentralized, inbound and outbound oracles. The principle of operation of an oracle depends on the task for which it was created.
What is Binance Oracle
A smart contract cannot interact with external data without outside help, so it relies on an oracle to provide the necessary information. The Binance Oracle is similar to other blockchain oracles - it is a data service from Binance that provides reliable and secure data on the blockchain.
Although the Binance Oracle was specifically designed for BNB Chain, it may expand to other chains in the future. Currently, all projects built on BNB Chain can use the services of the Binance Oracle.
The Binance Oracle brings many benefits to the BNB Chain ecosystem. Having your own oracle increases the reliability of blockchain data, and more verified data opens up new opportunities for existing and new projects.
Finally, the Binance Oracle helps attract new developers to the BNB Chain ecosystem. With this technology, any developer can freely connect their BNB Chain-based projects to off-chain data without having to maintain existing data, search for new sources, or risk using potentially unreliable information.
Binance Oracle Solutions
Blockchain projects rely on the reliability of data. The Binance Oracle has four characteristics that ensure accurate and timely information, as well as protection from hacking. Let's take a closer look at the Binance Oracle features that connect BNB Chain to the real world.
Data sources
Binance Oracle uses only verified data sources, ensuring the accuracy and reliability of the information. For example, Binance Oracle pulls price data from multiple centralized exchanges (CEXs) and decentralized finance (DeFi) applications, aggregating the information using a weighted average formula.
Data processing and signing
Binance Oracle has a data processing and signing feature that increases the level of protection against hacking. This feature creates a distributed signature system, known as a threshold signature scheme, and signs the latest data from different sources. Any owner of a public key can verify the accuracy and authenticity of a digital signature, and the data itself cannot be changed without a set of private keys.
Publishing data
Data is transmitted to the blockchain through multinodes, which publish only signed information. Smart contracts storing data are securely protected and verified, and multinodes can adjust the frequency of data publication depending on market conditions. This helps ensure data accuracy during periods of high price volatility, as multinode systems ensure the reliability of published data even in the most extreme scenarios.
Data monitoring
Binance Oracle data remains up to date thanks to an independent monitoring service that operates 24/7. It obtains prices from various sources and compares them with published blockchain data. If significant deviations are detected, Binance Oracle support intervenes.
How to Use Binance Oracle
If you have used blockchain applications before, you can easily get started with Binance Oracle. Some developers pre-associate their applications with specific data. However, if you are a blockchain developer and want to use Binance Oracle, check out our step-by-step official guide.
Summary
Oracles expand the functionality of the blockchain and the possibilities of mass adoption - without them, projects can only use internal data of their network. While blockchain oracles do not solve the problem of data availability, they do provide access to off-chain data from external sources.
The Binance Oracle gives smart contracts access to all verified data outside of its network. This function ensures that the information is correct, secure and up-to-date. The Binance Oracle has developed four solutions to ensure data reliability and continuously monitor potential problems.