SUM — paste, attest, verify

Math does the trust. Paste any paragraph, mint the facts, download a self-verifying JSON — anyone can recompute the state integer on their own machine with no SUM software installed.

Facts 0

Gödel state integer

—

what is this

Each fact (subject, predicate, object) is deterministically mapped to a unique prime via SHA-256(axiom_key) → seed → nextprime(seed). The state integer is the LCM of every prime. Two SUM states merge losslessly by taking their LCM. Entailment: state % prime == 0 answers "does this knowledge base contain fact X?"

unsigned in-browser mint — bundle carries signature: "unsigned:v0". Structural integrity (state integer ↔ tome) is still verifiable by anyone. For HMAC or Ed25519 signatures, run sum attest --signing-key … (see DID_SETUP.md).

Render tome with sliders

Five axes shape the tome from the same facts. Density (above) is deterministic — selects which facts to include. The four below condition an LLM render via /api/render. Fact preservation across non-density axes is empirically verified at median 1.000, p10 0.818 (see SLIDER_CONTRACT.md).

length 0.50

formality 0.50

audience 0.50

perspective 0.50

Verify a bundle

Paste a SUM bundle JSON. This in-browser verifier runs two checks: structural — recomputes the state integer from the canonical tome and confirms it matches the claim; Ed25519 — if the bundle carries a public_signature and public_key, the signature is verified natively via SubtleCrypto (Chrome 113+, Firefox 129+, Safari 17+). No server, no network, no keys to supply. HMAC (shared-secret) signatures still require sum verify --signing-key ….

This file is both a standalone HTML page AND a Claude artifact. Paste it into a Claude artifact conversation and extraction upgrades automatically to Claude-grade recall (SVO, lowercased, underscore-joined subjects, negation suppressed, passive inverted — the same rules SUM's Python sieve enforces). Outside an artifact it uses a naive tokeniser; the attestation layer is identical either way. Source + cross-runtime harnesses: github.com/OtotaO/SUM.

Every fact becomes a prime number.

Facts 0

Gödel state integer copy

Render tome with sliders

Verify a bundle

Gödel state integer