Black Pearl construction and BTC mining decommissioning
Company: Cipher Mining - Project: Black Pearl Facility
The claim, verbatim
Black Pearl HPC data center development on track with engineering, procurement and construction commenced; BTC mining decommissioning completed in February 2026
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: “HPC data center development on track as engineering, procurement and construction have commenced... BTC mining decommissioning completed in February 2026”
How we checked this
Checked on September 21, 2026. The cited source supports every part of this claim.
The Black Pearl Construction Update states development is on track with EPC commenced and BTC mining decommissioning completed in February 2026.
Confirmed in the source:
- Black Pearl HPC development on track with engineering, procurement and construction commenced
- Black Pearl BTC mining decommissioning completed in February 2026
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: “HPC data center development on track as engineering, procurement and construction have commenced... BTC mining decommissioning completed in February 2026”