The receipt of a mined transaction: status (success or failed), gas used, effective gas price (wei), fee paid (wei and LAX = gas used × gas price), the address of a created contract, and its event logs (at most 100). Each log has its address and raw topics and data, plus a decoding with the contract's verified ABI or the standard ERC-20/721 events when they match. Event string values are untrusted. A transaction that is not mined yet has no receipt.