预言机面临的挑战

预言机面临的挑战

响应缓慢：由于大多数Oracle的数据集成都与链上和链外有关，因此由于需要2个块的时间间隔，因此无法动态确保实时数据。更不用说以太坊的严重拥堵和高昂的手续费，缓慢响应可能是数据调用者遇到的问题。

数据不准确：大多数现有的oracle是集中式服务，因此某些节点可能是单片的，从而导致恶意性能，只要它比提供准确的数据更有利可图，这使其还不如传统的集中式数字协议更安全。

数据多样性的局限性：有多种DeFi协议使用从去中心化交易所中提取的数据，但是，由于缺乏交易深度或交易量，已证明数据不够用。此外，某些衍生产品的价格（例如股票，黄金等）未包括在列表中。

The challenges that oracles are encountering

Responding slowly: Since the data integration of most oracles is related to both on-chain and off-chain, the real-time data cannot be dynamically ensured due to the time interval of 2 blocks it takes. Not mention the heavy congestion and high gas fee on Ethereum, responding slowly can be problems to the data caller.

Data inaccuracy: Most existing oracles are centralized services, therefore certain nodes can be monolithic, causing malicious performance as long as it’s more profitable than providing accurate data, making it no more secure than a traditional, centrally run digital agreement.

Limit of data diversity: There are multiple DeFi protocols using data extracted from decentralized exchanges, however, it has been proved the data cannot be sufficient enough due to the lack of trading depth or transaction volume. Additionally, the price of some derivatives, such as stocks, gold etc. are not included in the list.