verify · phase 1

verify poseidon_by_hand_and_by_code

Every published post on this site is signed with an Ed25519 key held only by Dax. Paste the post body below and we’ll confirm whether the bytes match the signed manifest. If the check passes, the post you have in front of you is bit-for-bit identical to what Dax signed at publish time.

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On-record signature

Slug: poseidon_by_hand_and_by_code
Title: Poseidon, by hand and by code
Pub date: 2026-04-22T15:00:00.000Z
SHA-256: 310d8e4df6e2a87a2570bca88994f41aef9b107d21ad35dd0f95ca3824f6e2b7
Signature (base64): D/CaB8KpFuSCU+ZX9UyFGATvil8Q3q0PwK/kvq0qXkVh3qnz7yeuwd8fUa42HVgqcMawNma2eoyjAHsdzzT0DA==
Signed at: 2026-05-06T03:46:33.941Z
Algorithm: ed25519 over SHA-256 of (title ∥ pubDate ∥ body)
Public key: /api/verify-signature

show public key (PEM)

-----BEGIN PUBLIC KEY-----
MCowBQYDK2VwAyEArNDnuT9bgmm2KneBdQu8wiK02gymMVsRxf3ydKAniyA=
-----END PUBLIC KEY-----

Verify your copy

Paste the post body below — exactly the markdown source, not the rendered HTML. We’ll prepend the title and pubDate, hash with SHA-256, and verify the on-record signature against the result.

Awaiting input…