Mining rigs arrival for Phase 1
Company: Cipher Mining - Project: Black Pearl Facility
What the later record shows
Delivered on time · happened July 31, 2025
No passage states the arrival date of the rigs. However, mining began in June 2025 and the facility was delivering ~6.9 EH/s as of July 31, 2025, so the rigs were in place by the July deadline.
“As of July 31, 2025, the facility is delivering approximately 6.9 EH/s of self-mining capacity.”
2025-08-06 · Cipher Mining 10-Q filed 2025-08-07 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
Mining rigs for Phase 1 expected to arrive in July 2025
Source (primary)
Cipher Mining 424B5 filed 2025-05-22 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “the mining rigs are expected to arrive in July 2025”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The filing says the mining rigs are expected to arrive in July 2025, in the same sentence as the Phase 1 energization plan. It also describes the rigs as required for Phase 1.
Confirmed in the source:
- The mining rigs for Black Pearl Phase 1 are expected to arrive in July 2025
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1819989/000119312525124290/d876435d424b5.htm) in full (211,062 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Cipher Mining 424B5 filed 2025-05-22
Quote: “the mining rigs are expected to arrive in July 2025”
confirms Cipher Mining 10-Q filed 2025-08-07
Quote: “As of July 31, 2025, the facility is delivering approximately 6.9 EH/s of self-mining capacity.”