Speak little.Prove everything.

1512, Brescia. The Stammerer.

War cut a boy across the jaw. He kept the name they gave him. Tartaglia.

He spoke little.He proved everything.

Shielded notes, hidden orders, a proof that balances. The chain learns only that a valid trade happened. Never who. Never which side. Never how much.

1535, Venice. The Duel.

Rivals staked money with a notary and traded sealed challenge letters, the cartelli. Each side lodged its stake before a witness. The letters stayed sealed until the round closed. Answers were public. Method stayed secret.

Letter

The order commitment.

Notary

The MARGINALIA pool, holding both stakes.

Disfida

The batch, crossed every N seconds at the Chainlink midpoint.

Example duel: buy up to 500 NVDA at midpoint, minimum fill 50.

1539. The Verse.

“When the cube and the things together

are equal to some discrete number,

find two other numbers differing by it.”

The solution was never stated plainly. It was encoded as a poem. Two hidden numbers, u and v, combine to produce exactly one public root. Move the challenge and watch the duel resolve.

Two hidden numbers.One public truth.

Buyer and seller orders are the two hidden numbers, private witnesses in the settlement circuit. The single public fact is settlement at the oracle midpoint: price equals midpoint, and minFill ≤ qty ≤ maxQty for both sides.

1545. The Breach.

An oath was the only protection of a secret. It broke.

No oath. Only proof.

Tartaglia exists to stop front-running, MEV and order leakage. The chain will never print your order.

Trust and limits

• Mainnet live. Guarded pool with real assets.
• The MVP matcher can see orders so it can cross them. It never holds funds, and nothing it sees reaches the chain.
• Safety pauses. If the oracle goes stale or stock-token markets are closed, matching pauses and funds stay shielded.
• Compliance first. Deposits are screened against an approved set from an Association Set Provider (ASP).

The settlement, entered in the ledger.

For every match, the Verse proves the following five things.

1. I

   Existence

   Both orders are backed by real, unspent funds in the pool.

2. II

   Fair price

   Every match fills at the signed Chainlink midpoint, verified onchain. If the feed is stale or markets are closed, the round pauses.

3. III

   Respect

   Each side fills within its sealed bounds: minFill ≤ qty ≤ maxQty.

4. IV

   Conservation

   Per asset, inputs equal outputs plus fee.

5. V

   Clean funds

   Both deposits pass ASP screening.

Three axioms

1. I

   Soundness

   No trade settles unless the books balance.

2. II

   Silence

   An order reveals nothing onchain: before, during, or after the match.

3. III

   Fairness

   Everyone in a round fills at the same midpoint.

Vocabulary of the house

Cartello

The sealed order.orderCm = Poseidon(side, asset, maxQty, minFill, limit, nullifier, salt)

Disfida

One batch round, every N seconds, crossed at the midpoint.

Notary

The MARGINALIA shielded pool where funds rest.

Verse

The proof. Checked by all, read by none. Built with Noir and UltraHonk.

Midpoint

The single public price, from Chainlink Data Streams.

Assets at launch: USDG, NVDA, TSLA, AAPL. Midpoint-only orders. Batch cadence N seconds. No customers, no prices, no benchmarks are claimed. The mechanism is the demonstration.