Program & Contracts

This page is the authoritative technical reference for Microset’s on-chain footprint — a single Anchor program, prediction_market, implementing a sport-agnostic, parimutuel, multi-outcome market. For a plain-language version, see How Markets Work.

Program identity

Field	Value
Program name	`prediction_market` (Anchor)
Program ID	`B6nzqfZfxJ2UyAGD7ko3zSa2QLF8aWNjHqjkDqh1dzsC`
Cluster	Solana devnet
Used by	Frontend (`app.microset.io`) and backend API
Explorer	View on Solana Explorer
Treasury (fee recipient)	`3AzAex6froVqKX4EknPHsccZK8YjmFtqkzR3dWDxn9Cz`
Upgrade authority	A single key held by Microset

Instructions

Core

Instruction	Purpose	Who can call
`initialize_config`	Create the global `Config` (treasury, fee, resolution authority); unpause	One-time setup by the deployer
`update_config`	Update treasury, fee, resolution authority, or pause state	`config.authority` only
`create_market`	Create a market (`market_id`, outcomes, name, close/resolve times) and its vault	Microset’s backend authority (markets are created authority-only in practice)
`place_bet`	Stake SOL on an outcome	Any user
`resolve`	Set the winning outcome; send the protocol fee to the treasury	`config.resolution_authority` only
`void_market`	Void a market so users can claim full refunds	`config.resolution_authority` only
`claim`	Pay a winner’s proportional share, or refund a voided market	The staking user

Quick-prediction delegate session

To let users make repeated predictions without re-prompting their wallet, the program supports an explicit, user-funded delegate session:

Instruction	Purpose
`create_delegate_session`	User signs once to create a session for a delegate key, funding an escrow with a spend cap (`max_lamports`) and expiry (`expires_at`)
`fund_delegate_session`	Add SOL to an existing session (raises escrow and cap)
`place_bet_with_delegate`	Make a prediction signed by the delegate key, drawn from the capped escrow
`withdraw_delegate_funds`	Withdraw unused escrow back to the owner
`revoke_delegate_session`	Revoke the session at any time

Access control

Role	Holder	Powers
`authority`	A single key held by Microset	Update config, treasury, fee, resolution authority, pause
`resolution_authority`	Microset’s backend key	Resolve and void markets
Market creation	Authority-only in practice	Markets are created by Microset’s backend

The protocol fee (protocol_fee_bps) and resolution authority are stored in the on-chain Config and can be changed only by config.authority. The fee is capped on-chain (InvalidFeeBps if it exceeds 100%).

Accounts

Account	Role
`Config` (PDA `["config"]`)	Global config: `authority`, `treasury`, `protocol_fee_bps`, `resolution_authority`, `paused`
`Market` (PDA `["market", market_id]`)	One market: outcomes, per-outcome stake totals, close/resolve times, resolved state
`UserStake` (PDA `["stake", user, market]`)	A user’s per-outcome stake and claim status
Vault (PDA `["vault", market]`)	Program-owned account holding all of a market’s staked SOL
`DelegateSession`	A quick-prediction session: `owner`, `delegate`, `max_lamports`, `spent_lamports`, `expires_at`, `revoked`
`DelegateEscrow`	Holds the SOL funding a delegate session

Funds & settlement

All stakes for a market sit in one vault PDA, with per-outcome accounting.
On resolve, the protocol fee is taken from the pool and sent to the treasury (3AzAex6f…xn9Cz); the remainder is locked in for winners. If there are no winners, the pool goes to the treasury.
claim pays each winner their proportional share of the post-fee pool; a voided market refunds stakes in full with no fee.
Quick-prediction escrow is bounded by the user-set max_lamports cap and is revocable and withdrawable at any time.

Resolution data

Microset does not set outcomes itself. Resolution is triggered by third-party data APIs: when a recognized sports data provider (the Roanuz Sports API for cricket) reports a final result, that result drives the resolve instruction, which the resolution authority submits on-chain. This keeps outcomes tied to real-world events rather than to Microset’s discretion.

Events

Event	Emitted by
`CreateMarket`	`create_market`
`BetPlaced`	`place_bet` / `place_bet_with_delegate`
`MarketResolved`	`resolve`
`Claimed`	`claim`
`MarketVoided`	`void_market`

Source & verification

The Microset web app at app.microset.io and its backend both reference this program ID and IDL, which match the deployed program.
Security review: internal security audits and vulnerability testing completed.

Overview

Using Microset

Contract & Security

Data & Compliance

Program & Contracts

Program identity

Instructions

Core

Quick-prediction delegate session

Access control

Accounts

Funds & settlement

Resolution data

Events

Source & verification

​Program identity

​Instructions

​Core

​Quick-prediction delegate session

​Access control

​Accounts

​Funds & settlement

​Resolution data

​Events

​Source & verification

Program identity

Instructions

Core

Quick-prediction delegate session

Access control

Accounts

Funds & settlement

Resolution data

Events

Source & verification