Infinite-End, Truth-Driven Prediction Protocol

Prediction markets that terminate on truth, not on time.

Sooth is a fully on-chain protocol for infinite-end prediction markets that use retroactive finality to neutralize latency arbitrage and protect LPs, backed by a unified vault and multi-class adjudication.

∞ Live until truth

4 Adjudicator classes

ZK Verified settlement

Sooth · Market Snapshot

Demo Only

Market

BTC 7-day TWAP > $100k

Infinite-End Adjudicator: Oracle+ZK

Current Implied Probability

Vault-backed LMSR 62% YES · 38% NO

Retroactive Finality

T^* = Truth Time

Free-option resistant Latency-agnostic

If the condition is met at T^*, all trades after T^* are economically rewound via ZK-verified settlement. No rollbacks. No LP bleed from stale quotes.

Unified vault · Bounded-loss LMSR · Multi-adjudicator All numbers on this page are illustrative only.

Demo Markets

Example Sooth-style infinite-end markets. These are mock datasets demonstrating how markets, adjudicators, and cooldown states appear in a UI.

Unified Vault · LMSR vAMM

Market	Adjudicator	Status	Implied YES
BTC 7-day TWAP > $100k	Oracle+ZK	Live · Infinite-End	62%
“Protocol X hacked > $1M?”	ZK Rule	Cooldown · T^* pending	41%
“UN Announces Confirmation of Alien Life”	Optimistic	Live · Infinite-End	54%
“Stablecoin Z depegs < 0.90”	Oracle+ZK	Settled	0%

Infinite-End, truth-driven termination

Cooldown enforced · Guardian mark

Settled via adjudicator + ZK accounting

Adjudicator classes

A Optimistic (UMA / Reality-style)

B ZK Rule (pure on-chain logic)

C Oracle + ZK enhancement

D Attestation-based

Infinite-End behavior

Markets do not expire on a fixed date. They remain live until an adjudicator reports a truth and a termination time T^*. Settlement is computed back from T^*, rewinding any latency-driven trades.

LP perspective

LPs deposit into a singleton vault and earn fees and yield across all markets sharing that adjudicator class. LMSR ensures bounded loss; ZK settlement avoids loss-vs-rebalancing from stale quotes.

Protocol Architecture

Sooth separates concerns across market, adjudication, liquidity, settlement, and account layers. Each layer is replaceable and governance-tunable.

Layered Design · ZK-Ready

1 · Market Layer

Infinite-End Markets

Markets are not tied to an expiry timestamp. They terminate solely on adjudicated truth, using a precise T^* to define when an event became true. This structurally removes free-option attacks and latency arbitrage around resolution.

Event-driven lifecycle
Guardian-driven cooldown
Retroactive settlement on T^*

2 · Liquidity Layer

Singleton Vault + LMSR vAMM

A unified vault per (chain, adjudicator class) powers an LMSR vAMM that prices outcome exposure. Virtual liquidity can be weighted per market while preserving bounded vault loss.

Unified LP exposure
Virtual liquidity routing
Bounded-loss LMSR curve

3 · Settlement & Account Layer

ZK-Verified PnL

Trades, positions, and T^* feed into an off-chain ZK engine (e.g. Brevis) that computes per-account delta-PnL. A settlement batch with proof is posted on-chain and applied to Smart Accounts.

Merkle-root settlement
Proof-verified accounting
Local PnL application per account

Landscape Positioning

Sooth complements existing platforms like Polymarket, Kalshi, Omen, and HIP-4 by focusing on infinite-end, vault-backed, ZK-verifiable markets.

Context · Not Competition-Only

Sooth Event-perpetual · Truth-first

Polymarket Kalshi Omen HIP-4

Axis	Sooth	Polymarket	Kalshi	Omen	HIP-4
Market Type	Infinite-End, T^*-driven	Fixed event markets	Fixed event contracts	Fixed Q&A markets	Event perps
Liquidity	Vault + LMSR vAMM	Hybrid CLOB / on-chain	Centralized CLOB	Per-market AMM pools	On-chain CLOB
Resolution	Multi-class + ZK settlement	Oracle + optimistic	Centralized oracle	Reality.eth + arbitration	Chosen oracle
Decentralization	Fully on-chain protocol	Hybrid infra	Centralized exchange	Fully on-chain	Custom L1, semi-decentralized

Sooth is deliberately narrow: it aims to be the most expressive and secure base layer for truth-terminated, infinite-end markets, while remaining neutral infrastructure for any front-end or ecosystem that wants to build on top.

Sooth Protocol Demo

This is the interactive dApp surface for Sooth: trader, LP, and guardian views wired into a single infinite-end vAMM. Connect wallet, choose a market, and simulate positions against the unified vault.

Unified USDC Vault LMSR-style virtual balances Chain: base-sepolia

Sooth demo UI mounts here (React app). In the current static preview this is a placeholder; in production, this container is controlled by your Vite bundle.

Tip: click the Sooth logo in the top-left at any time to jump back to the landing page.