Smart Contract Architecture
Axiom is composed of several smart contracts, each with a clear and isolated role. This modular design makes the system more secure, more upgradeable, and easier to reason about.
Vaults (XRPVault and future stablecoin vaults)
Responsible for:
Accepting deposits
Minting non-transferable share tokens (aXRP)
Burning shares on withdrawal
Increasing share price as yield accrues
Enforcing resolution locks
The vaults follow a modified ERC-4626 pattern for predictable, fair accounting.
Eligibility Registry
Responsible for:
Snapshotting staker USD values
Sorting stakers by percentile
Defining the top 50 percent
Providing Merkle proofs for eligibility
Supporting fraud proofs during decentralized operation
The system uses an optimistic off-chain Merkle snapshot model with on-chain verification if challenged.
MarketFactory
Responsible for:
Creating new markets
Verifying top 50 percent eligibility post-bootstrap
Deploying market implementations
Managing implementation registration over time
The MarketFactory is upgradeable so the protocol can keep evolving while preserving a stable creation interface.
AxiomConditionalTokens
Responsible for:
Representing outcome positions as ERC-1155 tokens
Splitting collateral into complete sets
Merging complete sets back into collateral
Redeeming resolved winning positions
This is the core positions primitive behind Axiom’s CLOB markets.
AxiomCTFMarket
Responsible for:
Preparing each market condition
Storing market-level metadata and configuration
Acting as the oracle for resolution
Reporting payouts to Conditional Tokens
Exposing market-scoped redemption helpers
This contract connects the prediction market question to the tokenized outcome positions.
AxiomCTFExchange
Responsible for:
Verifying signed orders
Tracking partial fills and cancellations
Settling matched trades atomically onchain
Moving collateral and ERC-1155 outcome tokens safely
Charging CLOB protocol fees during settlement
This is the onchain settlement engine for Axiom’s order-book trading.
FeeRouter and Rewards Infrastructure
Responsible for:
Routing staker fees to the correct recipient
Funding rewards and vault yield flows
Supporting bootstrap incentives and post-bootstrap yield distribution
The fee path differs between bootstrap and post-bootstrap states, but the design goal stays the same: market activity should fund protocol incentives and staker yield.
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