XP Union Vault
The Union Vault is the Foundation's non-custodial staking vault. It takes what the Foundation's Union validator node actually earns and splits it two ways: 60% streams to stakers, and more than 40% is permanently burned. No new issuance funds these rewards.
Read directly from the public Mainnet RPC in your browser. Verify anything here yourself on XPScan.
Mechanism
Four steps, all on-chain. Your principal never leaves your control, is never re-staked, and is never redeployed elsewhere.
Stake the native token directly — no wrapping, no bridging, no lock-up on deposit. The vault implements ERC-4626 with asynchronous redemption; internally 1 XP is accounted as 1,000 shares.
The Foundation's Union validator node earns block rewards and transaction-fee shares like any other Union member. Once per 1-day epoch, anyone can call settlement — it is permissionless, so the vault does not depend on the Foundation to keep paying.
The settled amount is split: 60% is allocated to stakers and streamed continuously over the following 24 hours, and the remainder — always more than 40% — is sent to the burn address and permanently removed from supply. Your share of the staker allocation is scaled by vault utilisation, and yield from unfilled capacity is burned rather than redistributed.
Redemption is a request followed by a 7-day cooldown, then a claim of your full principal. Rewards never expire — claim them whenever you want. The vault charges 0%; you pay network gas only.
Parameters
Rewards are paid out of revenue the validator node has already earned — block rewards and its share of transaction fees. The vault never mints XP to pay you. That is why the APR moves with the node's actual earnings and your own stake size, and not with how many other people are staking.
More than 40% of every day's rewards go to 0x…dEaD and never come back. That sits alongside two other burns: 50% of every transaction fee, and everything earned by the Foundation's interim validator nodes while they hold seats not yet taken by Union members. The Foundation publishes the daily burn record, and every settlement is a transaction you can open on the explorer.
Verify
Confirm these addresses here or in the documentation before you sign anything. The vault is immutable at the addresses below.
Full contract reference: docs.x-phere.com/staking/contracts
Vault rewards come from what the validator node actually earns, so the rate moves with real network activity. It can fall. Past distributions do not predict future ones, and staking carries risk. Read the fees and risks page before you deposit.
That threshold applies only to Union validator membership, which is a separate, permissioned programme requiring dedicated server infrastructure. Staking in the Union Vault has no minimum of that kind and requires no node.