ERC-7786 Cross-Chain Messaging Gateway

FinalERCcreated 2024-10-142 later proposals build on itrequires ERC-7930

An interface for contracts to send and receive cross-chain messages containing arbitrary data.

Authors: Francisco Giordano (@frangio), Hadrien Croubois (@Amxx), Ernesto García (@ernestognw), CJ Cobb (@cjcobb23), Sergey Gorbunov (@sergeynog), joxes (@Joxess)

ERC-165 interface ids

Computed here as the XOR of the selectors each interface defines.

IERC7786GatewaySource 0x11967553

Functions this standard introduces (2)

`0xcdfe7f5c`	`sendMessage(bytes,bytes,bytes[])`	payable
`0xdc680a0f`	`supportsAttribute(bytes4)`	view

Events (1)

Topic0 is the keccak256 hash of the signature, which is what a log filter matches on.

0x7446eaa0a0dda80670b3bfe972bfbefab659bcfb67abad4e0b64dc4630a70481 MessageSent(bytes32,bytes,bytes,bytes,uint256,bytes[])

Custom errors (1)

0xe1c9e479 UnsupportedAttribute(bytes4)

Depends on (1)

Proposals this one names in its requires field.

Built on by (2)

Later proposals that name this one in their requires field.

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