Inventory rigs deployed at Black Pearl a quarter early
Company: Cipher Mining - Project: Black Pearl Facility
What the later record shows
Delivered on time · happened June 30, 2025
Black Pearl began mining in June 2025 using previously utilized Odessa rigs and new rigs, so hashrate came online in Q2 as promised. The passages do not separately confirm the ~2.5 EH/s figure.
“as of July 2025 with Black Pearl Phase I 150 MW deployment of delivered Bitmain S21 XP rigs from recent purchase order and previously utilized rigs from the Odessa site”
2025-08-06 · cipher-mining 8-K exhibit (ciphermining_businessupd.htm) View cached copy (2026-10-08)Live source ↗
“We commenced mining bitcoin at the Black Pearl data center in June 2025”
2026-02-23 · Cipher Mining 10-K filed 2026-02-24 View cached copy (2026-08-31)Live source ↗
Checked October 16, 2026 against filings, releases and reporting published after the claim was made. Quotes are verbatim from the linked documents.
The claim, verbatim
Cipher will deploy rigs from inventory at Black Pearl, bringing about 2.5 EH/s online one quarter earlier than anticipated with no additional capital expenditure.
Source (primary)
cipher-mining 8-K exhibit (exh991cifrmay6_earningsxpr.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-10-16)Live source ↗
Quote: “This strategic decision will bring approximately 2.5 exahashes per second online one quarter earlier than anticipated through the efficient use of idle assets at no additional capital expenditure to the company.”
How we checked this
Checked on October 17, 2026. The cited source supports every part of this claim.
The CEO's statement in the release covers every element of the claim: inventory rigs at Black Pearl, about 2.5 EH/s, one quarter early, and no added capital expenditure.
Confirmed in the source:
- Cipher decided to deploy rigs from inventory at the Black Pearl site
- The deployment would bring approximately 2.5 EH/s online
- The capacity would come online one quarter earlier than anticipated
- The deployment involves no additional capital expenditure to the company
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1819989/000181998925000034/exh991cifrmay6_earningsxpr.htm) in full (15,860 characters, retrieved October 16, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms cipher-mining 8-K exhibit (exh991cifrmay6_earningsxpr.htm)
Quote: “This strategic decision will bring approximately 2.5 exahashes per second online one quarter earlier than anticipated through the efficient use of idle assets at no additional capital expenditure to the company.”
confirms Cipher Mining 10-K filed 2026-02-24
Quote: “We commenced mining bitcoin at the Black Pearl data center in June 2025”
confirms cipher-mining 8-K exhibit (ciphermining_businessupd.htm)
Quote: “as of July 2025 with Black Pearl Phase I 150 MW deployment of delivered Bitmain S21 XP rigs from recent purchase order and previously utilized rigs from the Odessa site”