Solonic

The Mark · we call it the Sphragis

A mark that points. Not a mark of truth.

There is no mark of truth — the first sentence this company ever published — so this is not one. The Mark asserts exactly one thing: this exact version passed through the Solonic gate on this date, and here is the public record. It is a pointer to higher-order evidence, checkable by anyone in under a minute. The image can be copied by anybody. The registry entry cannot.

The claim, both columns

What it asserts — and refuses to

The Mark asserts

  • An exact version, bound by SHA-256 content hash. Change one character and the mark no longer describes your file.
  • A gate and a date: which tier ran, when, and by which protocol version.
  • A record URL where the verdict summary — including the failures — is public.
  • A current standing, because verdicts revise: STANDING, PROVISIONAL, SUPERSEDED, or WITHDRAWN.

The Mark does not assert

  • That the work is true. Verdicts are judgments under uncertainty, revisable per the ledger.
  • That Solonic endorses the conclusions. We gate arguments; we do not adopt them.
  • That any later version inherits it. Marks do not transfer; revisions re-gate or go unmarked.
  • Permanence. A withdrawn mark stays visible in the registry as withdrawn, with the reason.

Checking one

Sixty seconds, no trust required

  1. Follow the URL on the mark to the registry record.
  2. Hash the file you were given (any SHA-256 tool) and compare it to the hash on the record. Match: the mark describes this exact version. Mismatch: it does not, whatever the badge says.
  3. Read the record — tier, date, verdict distribution, and standing. The failures are listed with the passes; a mark that hid its UNSUPPORTED counts would be a mark of truth, which we don’t sell.

The two marks

Gated, and Refit

Solonic Mark: Gated — Caliber Deep, 2026-07-09, with registry link
GATED — verification ran at the stated tier; the record shows the full verdict distribution.
Solonic Mark: Refit — re-gated 2026-07-09, with registry link
REFIT — revised toward the evidence with a traced diff, then re-gated by a family that took no part in the revision.

STANDING — record current PROVISIONAL — a required step pending SUPERSEDED — a newer gated version exists WITHDRAWN — misuse or reversal; reason on record

A live record

Sample: our own flagship

solonic.ai/mark/s0001

Artifact
The Superintelligence Problem — Probability Map v2.1
SHA-256
01fdd4855ee9cd4b8a9e6e7513a4b631bc9cf597b21c41c8c82a0a305cdf5b00
Gate
Caliber Deep · 2026-07-08 · findings E1–E6 published in the artifact’s own §0 and in the errata record
Refit
Applied 2026-07-08 · every change traced to a finding
Standing
PROVISIONAL — the re-gate after refit was run by the same family that performed the revision, which our own rules do not accept. An independent re-gate is docket item four for the panel. The mark stands PROVISIONAL until it completes — including on our own flagship, which is the point.

Misuse and withdrawal. Displaying a mark on any version other than the hashed one is misrepresentation; we withdraw the mark and the withdrawal is public, dated, and permanent in the registry. The deterrent is not the badge — it is that the registry never forgets.

Why “Sphragis.” Theognis of Megara sealed his verses with a sphragis — a mark set into the text itself so that tampering could be detected. The oldest anti-forgery device in the written corpus. Ours does the same job with a hash.