Property and equipment (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Property and equipment, gross	$ 143,276	$ 177,850
Less accumulated depreciation	(53,732)	(46,472)
Property and equipment net	89,544	131,378
Computer Equipment [Member]
Property and equipment, gross	69,200	69,200
Computer server [Member]
Property and equipment, gross	19,751	0
Mining equipment [Member]
Property and equipment, gross	$ 54,325	$ 108,650