Black Pearl 300 MW facility bitcoin mining energization
Company: Cipher Mining - Project: Black Pearl Facility
What the later record shows
Delivered late · happened September 30, 2025
Mining started in June 2025, but the site only reached 150 MW by September 2025, after the June 2025 target.
“We commenced mining bitcoin at the Black Pearl data center in June 2025 and ramped up to 150 MW of capacity by September 2025.”
2026-02-23 · Cipher Mining 10-K filed 2026-02-24 View cached copy (2026-08-31)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
Plan to energize 150 MW of bitcoin mining capacity in June 2025 at 300 MW data center
Source (primary)
Cipher Mining 424B5 filed 2025-05-23 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “including one 300 MW data center at which we plan to energize 150 MW of bitcoin mining in June 2025”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The company overview says Cipher plans to energize 150 MW of bitcoin mining in June 2025 at one 300 MW data center. The claim text does not name the site, and this passage does not name it either.
Confirmed in the source:
- Cipher has a 300 MW data center in its pipeline
- Cipher plans to energize 150 MW of bitcoin mining at that data center in June 2025
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1819989/000119312525125868/d876435d424b5.htm) in full (210,464 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Cipher Mining 424B5 filed 2025-05-23
Quote: “including one 300 MW data center at which we plan to energize 150 MW of bitcoin mining in June 2025”
confirms Cipher Mining 10-K filed 2026-02-24
Quote: “We commenced mining bitcoin at the Black Pearl data center in June 2025 and ramped up to 150 MW of capacity by September 2025.”