Amazon Web Services lease
Company: Cipher Mining - Project: Black Pearl Facility
The claim, verbatim
Entered into 15-year lease agreement with Amazon Web Services to deliver approximately 300 MW at Black Pearl Facility
Source (primary)
Cipher Mining 10-K filed 2026-02-24 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “we entered into a 15-year lease agreement with Amazon Web Services, Inc. ("Amazon") to deliver approximately 300 gross MW of turnkey data center capacity at the site”
How we checked this
Checked on September 16, 2026. The cited source supports every part of this claim.
The filing describes a 15-year Amazon Web Services lease for roughly 300 gross MW at Black Pearl, matching the claim.
Confirmed in the source:
- Cipher entered into a 15-year lease agreement with Amazon Web Services, Inc.
- The lease covers approximately 300 gross MW of turnkey data center capacity at the Black Pearl Facility
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1819989/000181998926000009/cifr-20251231.htm) in full (477,779 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Cipher Mining 10-K filed 2026-02-24
Quote: “we entered into a 15-year lease agreement with Amazon Web Services, Inc. ("Amazon") to deliver approximately 300 gross MW of turnkey data center capacity at the site”