Exhibit 1

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree that they are jointly filing this statement on Schedule 13D. Each of them is responsible for the timely filing of such statement and any amendments thereto, and for the completeness and accuracy of the information concerning such person contained therein; but none of them is responsible for the completeness or accuracy of the information concerning the other persons making the filing, unless such person knows or has reason to believe that such information is inaccurate.

IN WITNESS WHEREOF, the undersigned hereby execute this Joint Filing Agreement as of the 2nd day of October, 2025.

	BITFURY HOLDING B.V.

	By:	/s/ Stijn Ehren
	Name:	Stijn Ehren
	Title:	Managing Director

	BITFURY TOP HOLDCO B.V.

	By:	/s/ Stijn Ehren
	Name:	Stijn Ehren
	Title:	Managing Director

	BITFURY GROUP LIMITED

	By:	/s/ Valerijs Vavilovs
	Name:	Valerijs Vavilovs
	Title:	Director

	V3 HOLDING LIMITED

	By:	/s/ Valerijs Vavilovs
	Name:	Valerijs Vavilovs
	Title:	Director

	VALERIJS VAVILOVS

	By:	/s/ Valerijs Vavilovs
	Name:	Valerijs Vavilovs

Cipher Mining Inc. SCHEDULE 13D/A