15-year AWS HPC hosting lease at Black Pearl
Company: Cipher Mining - Project: Black Pearl Facility
What the later record shows
Not a promise: a reported event · happened October 31, 2025
The claim reports a lease that was already signed when stated. Filings date it to October 2025, though one passage says November 2025, so the exact date is uncertain.
“In October 2025, the Company entered into a 15-year lease agreement with Amazon Data Services, Inc.”
2026-05-04 · Cipher Mining 10-Q filed 2026-05-05 View cached copy (2026-08-31)Live source ↗
“The sublease provides three five-year extension options, as well as a short-term extension option under specified conditions.”
2026-08-03 · Cipher Mining 10-Q filed 2026-08-04 View cached copy (2026-08-30)Live source ↗
Checked October 10, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
Executed 15-year base lease agreement with Amazon Web Services for HPC hosting at Black Pearl with three 5-year extension options; Amazon.com, Inc. guarantees all base rent and operating expenses
Source (primary)
cipher-mining 8-K exhibit (cipherdigital_businessup.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-09-13)Live source ↗
Quote: “Executed 15-year HPC lease with AWS at ~100% NOI margin... 15-year base lease agreement with AWS with three 5-year extension options... Amazon.com, Inc. guarantees all base rent and operating expenses”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The Black Pearl transaction overview describes a 15-year HPC hosting lease with AWS that has three 5-year extension options, with Amazon.com, Inc. guaranteeing all base rent and operating expenses. The presentation also refers to an executed AWS HPC lease at Black Pearl.
Confirmed in the source:
- Cipher executed a 15-year HPC lease with Amazon Web Services
- The AWS lease is for HPC hosting at Black Pearl
- The AWS lease has three 5-year extension options
- Amazon.com, Inc. guarantees all base rent and operating expenses under the lease
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1819989/000181998926000007/cipherdigital_businessup.htm) in full (25,132 characters, retrieved September 13, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms cipher-mining 8-K exhibit (cipherdigital_businessup.htm)
Quote: “Executed 15-year HPC lease with AWS at ~100% NOI margin... 15-year base lease agreement with AWS with three 5-year extension options... Amazon.com, Inc. guarantees all base rent and operating expenses”