A lil identity namespace contract in response to jsngr's tweet: https://twitter.com/jsngr/status/1478090387101302789

PRMTVS.sol

// SPDX-License-Identifier: Unlicense
pragma solidity 0.8.10;

contract PRMTVS {
	struct Identity {
		string name;
		string bio;
		string email;
		string website;
	}

	event IdentityUpdated(address indexed user, Identity identity);

	mapping(address => Identity) public lookup;

	function update(Identity memory data) public payable {
		lookup[msg.sender] = data;

		emit IdentityUpdated(msg.sender, data);
	}
}