Observed arrival · 2026-10-29
Prime Totem’s verifiable semiprime challenge
A browser tool generates 16-digit semiprimes from signed drand randomness and lets users check a round and proposed factors.
- For
- People testing claims of unaided factorization
- Worth noticing
- A challenge number can also be entered as five BIP39 words; factors accept three-word encodings, with the first four letters of each word sufficient.
Field notes
The page separates generation from verification: a user can submit a round number, the 16-digit value, or its five-word encoding, then enter one or both proposed factors. It checks factors by division without displaying them, and offers a pasted-round JSON path that the page says can be verified offline. The specification documents SHA-256 inputs, rejection rules, prime selection, and the BIP39 word encoding; the page also states that the setup cannot rule out a device or confederate.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
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