Black Pearl Phase I energization
Company: Cipher Mining - Project: Black Pearl Facility
What the later record shows
Not a promise: a reported event · happened June 30, 2025
The claim, made on 2025-08-06, reports that Phase I construction and energization were already finished in Q2 2025. Later filings confirm Phase I was energized in June 2025.
“In June 2025, we energized and commenced bitcoin mining operations at Phase I of the Black Pearl facility.”
2025-08-06 · Cipher Mining 10-Q filed 2025-08-07 View cached copy (2026-08-31)Live source ↗
“an increase in total bitcoin mined attributable to the Black Pearl Facility coming online at the end of the second quarter of 2025”
2025-11-02 · Cipher Mining 10-Q filed 2025-11-03 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
Black Pearl Phase I (150 MW) construction and energization were completed on schedule in Q2 2025, with ~6.9 EH/s currently deployed.
Source (primary)
cipher-mining 8-K exhibit (ciphermining_businessupd.htm) (SEC EDGAR (8-K Ex), press_release)
View cached copy (2026-10-08)Live source ↗
Quote: “Phase I – 150 MW – Construction and energization completed on schedule in Q2 2025 – Current hashrate of ~6.9 EH/s”
How we checked this
Checked on October 13, 2026. The cited source supports every part of this claim.
The presentation states that Phase I (150 MW) construction and energization were completed on schedule in Q2 2025, with a current hashrate of ~6.9 EH/s.
Confirmed in the source:
- Black Pearl Phase I is 150 MW
- Black Pearl Phase I construction and energization were completed on schedule in Q2 2025
- ~6.9 EH/s is currently deployed at Black Pearl Phase I
What we did: Read our cached copy of SEC EDGAR (8-K Ex) (https://www.sec.gov/Archives/edgar/data/1819989/000181998925000079/ciphermining_businessupd.htm) in full (19,841 characters, retrieved October 8, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms cipher-mining 8-K exhibit (ciphermining_businessupd.htm)
Quote: “Phase I – 150 MW – Construction and energization completed on schedule in Q2 2025 – Current hashrate of ~6.9 EH/s”