Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
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A transaction is a cryptographically signed instruction from an account that changes the state of the blockchain. Block explorers track the details of all transactions in the network. Learn more about transactions in our Knowledge Base.