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Upgrade of Bitmain miners from T21 to S21 Pro

Company: Cipher Mining

This claim was marked delayed on September 4, 2026. Recorded automatically from the cited source when it was published, then queued for evidence review.

How this was decided: Automated extraction from the cited source. The claim is preserved below exactly as it was originally published, so the record shows what was asserted as well as what became of it.

Subject kind
product
Statement date
2024-06-09
Promised by
2024-10-31
Promised amount
30364.0 units
Current status
delayed

The claim, verbatim

Cipher Mining upgraded its purchase from 37,396 Antminer T21 miners to 30,364 Antminer S21 Pro miners

Source (primary)

Cipher Mining 8-K filed 2024-06-10 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗

Quote: “upgraded the purchase of 37,396 Antminer T21 miners to 30,364 Antminer S21 Pro miners”

How we checked this

This claim has not yet been checked assertion-by-assertion against its source. It carries a cited source and quote, but the deeper check has not run. When it does, the result appears here whatever it says.

Additional evidence

confirms Cipher Mining 8-K filed 2024-06-10

Quote: “upgraded the purchase of 37,396 Antminer T21 miners to 30,364 Antminer S21 Pro miners”

View cached copy (2026-08-31)Live source ↗

Record of changes

September 3, 2026 — stated
Automated extraction from the cited source. Recorded automatically from the cited source when it was published, then queued for evidence review.
September 4, 2026 — delayed
Automated extraction from the cited source. Recorded automatically from the cited source when it was published, then queued for evidence review.