Checked fact 176318 Oct 2026Research

The post says the base points for P-224, P-256, P-384, P-521 and the NIST binary curves remain unexplained, and that the fifth binary seed, B-163, is unexplained.

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The exact words it rests on

The fifth binary seed, B-163, fits nothing Claude has tried and remains unexplained.

What the source said when we opened it, on 18 Oct 2026.

The source

Claude reveals ECDSA curve origins
Anthropic · 2026-10-16

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Checked

Checked by the notis newsroom on 18 Oct 2026, against the source above.

In the story

Anthropic says an internal model traced NIST curve seeds to lrand48 and a timestamp, making a backdoor less plausible. 18 Oct 2026

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In a sentence

“The post says the base points for P-224, P-256, P-384, P-521 and the NIST binary curves remain unexplained, and that the fifth binary seed, B-163, is unexplained.” ai notis, checked 18 Oct 2026. Source: Claude reveals ECDSA curve origins (Anthropic). https://ainotis.com/c/1763

As a reference (APA style)

ai notis. (2026, October 18). The post says the base points for P-224, P-256, P-384, P-521 and the NIST binary curves remain unexplained, and that the fifth binary seed, B-163, is unexplained [Checked claim 1763]. ai notis. https://ainotis.com/c/1763

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