RT: #Blockchain is a closed system that can only get on-chain data, but unable to determine the credibility and accuracy of off-chain data from the 'real world'.
The #Oracle establishes a mechanism to verify and authenticate off-chain data fed to the #blockchain.
#WINkLink #WIN https://twitter.com/WinkLink_O...
转发：#区块链是一个封闭系统，只能获取链上数据，但无法确定来自“现实世界”的链外数据的可信度和准确性。
#Oracle建立了一种机制来验证和验证提供给#区块链的链外数据。
#WINkLink#赢https://twitter.com/WinkLink_O...