Bitmain Antminer S19j Pro purchase agreement
Company: Cipher Mining
What the later record shows
Delivered late · happened December 31, 2022
Deliveries were due by September 2022, but only 12,953 had arrived by September 30, 2022. The full 27,000 (27,035) had arrived by December 31, 2022.
“which were expected to be delivered in nine batches on a monthly basis between January 2022 and September 2022. As of September 30, 2022, 12,953 miners have been received.”
2022-11-13 · Cipher Mining 10-Q filed 2022-11-14 View cached copy (2026-09-13)Live source ↗
“purchased a total of 27,000 Antminer S19j Pro (100 TH/s) (“S19j Pro”) miners and had received 27,035 miners from Bitmain at our data centers in Texas as of December 31, 2022”
2023-03-13 · Cipher Mining 10-K filed 2023-03-14 View cached copy (2026-09-13)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
Company agreed to purchase 27,000 Antminer S19j Pro (100 TH/s) miners with monthly deliveries January 2022 through September 2022
Source (primary)
Cipher Mining 424B3 filed 2021-10-08 (SEC EDGAR, sec_filing)
View cached copy (2026-09-13)Live source ↗
Quote: “we and Bitmain Technologies Limited ("Bitmain") entered into agreements for us to purchase 27,000 Antminer S19j Pro (100 TH/s) miners, which are expected to be delivered in nine batches on a monthly basis between January 2022 and September 2022”
How we checked this
Checked on October 11, 2026. The cited source supports every part of this claim.
The prospectus states that Cipher agreed with Bitmain to buy 27,000 Antminer S19j Pro (100 TH/s) miners, with delivery expected in nine monthly batches from January to September 2022.
Confirmed in the source:
- Cipher Mining entered into agreements with Bitmain Technologies Limited, dated August 20 and August 30, 2021, to purchase 27,000 Antminer S19j Pro (100 TH/s) miners
- The miners were expected to be delivered in nine monthly batches between January 2022 and September 2022
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1819989/000119312521295507/d383691d424b3.htm) in full (687,884 characters, retrieved September 13, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms Cipher Mining 424B3 filed 2021-10-08
Quote: “we and Bitmain Technologies Limited ("Bitmain") entered into agreements for us to purchase 27,000 Antminer S19j Pro (100 TH/s) miners, which are expected to be delivered in nine batches on a monthly basis between January 2022 and September 2022”
confirms Cipher Mining 10-K filed 2023-03-14
Quote: “purchased a total of 27,000 Antminer S19j Pro (100 TH/s) (“S19j Pro”) miners and had received 27,035 miners from Bitmain at our data centers in Texas as of December 31, 2022”
confirms Cipher Mining 10-Q filed 2022-11-14
Quote: “which were expected to be delivered in nine batches on a monthly basis between January 2022 and September 2022. As of September 30, 2022, 12,953 miners have been received.”