How $MPC ↔ $sMPC Conversion Works
Introduction
When you use liquid staking on Partisia Blockchain, your $MPC is converted into $sMPC. Later, if you choose, $sMPC can be converted back into $MPC.
Understanding how this conversion works, and what changes during the process, removes most of the uncertainty around liquid staking.
The system is designed to be predictable, transparent, and reversible.
Step 1: $MPC → $sMPC (Staking)
When you stake $MPC through Sceptre, your tokens are delegated to validators who operate nodes that secure the network. There’s no minimum amount required to start staking.
In return, the protocol issues $sMPC to your wallet.
Two important things happen simultaneously:
- Your $MPC becomes staked and begins earning rewards.
- You receive $sMPC as a liquid representation of that staked position.
Your $MPC is not “sent away” in the traditional sense. It is locked within Partisia Blockchain’s native staking mechanism and tracked by the Sceptre protocol. $sMPC represents your claim on that position.
At the moment of staking, the exchange rate between $MPC and $sMPC is defined. Over time, that rate changes.
Step 2: How the Exchange Rate Evolves
Unlike traditional staking, where rewards are distributed separately and need to be restaked manually, liquid staking automatically accumulates rewards inside the protocol.
This causes the value of $sMPC relative to $MPC to increase by the value of the staking rewards.
For example (conceptually):
- At time of staking:
1 sMPC = 1 MPC - After rewards accrue*:
1 sMPC = 1.02 MPC
*this continues to compound as rewards accrue.
This does not mean new tokens were printed or speculative gains were introduced. It means staking rewards were compounded within the Sceptre protocol and reflected in the exchange rate.
This happens due to the function of the exchange rate which changes whenever new rewards are claimed and added to the pool, meaning the value of $sMPC relative to $MPC only goes up.
Instead of adding staking rewards to your wallet, the total value of your position grows through this rate adjustment.
You do not need to claim or manually restake rewards. The benefit of Sceptre’s liquid staking protocol is that compounding happens automatically.
Why This Model Is Used
- The exchange-rate model simplifies participation.
- It avoids separate reward tokens.
- It reduces operational friction.
- It ensures rewards are continuously compounded.
- It also allows the protocol to optimise delegation and reduce idle stake, improving overall efficiency.
- The mechanism is transparent. The exchange rate can be observed at any time.
Step 3: $sMPC → $MPC (Unstaking)
If you decide to convert back to $MPC, you initiate the unstaking process.
The protocol applies a defined 14-day cooldown period before releasing $MPC back to your wallet. This period exists to maintain validator stability and protect the security of the network.
During the cooldown:
- Your unstaked portion keeps earning staking rewards until you claim it.
- The request is tracked by the Sceptre protocol.
- No further action is required until the redemption window.
Once the cooldown completes, you redeem $MPC at the current exchange rate.
Because the exchange rate has increased over time, the $MPC you receive reflects accumulated staking rewards.
The process is predictable and pre-defined by the protocol for clarity and fairness.
Partial Conversions
- You are not required to convert your entire position.
- Both staking and unstaking can be done partially, allowing flexible participation.
- This flexibility is central to liquid staking’s design.
Alternative Exit via Liquidity
$sMPC may also be swapped for $MPC (or other assets) via supported exchanges. We already have active pools in zkCross, Partisia Blockchain’s native DEX.
This route depends on available liquidity and market pricing, whereas the unstaking route follows the protocol-defined exchange rate and cooldown period.
Both mechanisms exist to provide flexibility depending on your needs.
What Does Not Change
It is important to clarify what liquid staking does not alter.
- The underlying $MPC token remains the native asset of the network.
- The staking rewards are generated by network participation.
- The protocol rules governing validator operations remain intact.
Liquid staking changes how rewards are represented and how flexibility is enabled. It does not change the fundamentals of network security.
In Summary
The $MPC ↔ $sMPC conversion model is built around three principles:
- Representation: $sMPC represents staked $MPC.
- Accumulation: rewards are reflected through exchange-rate growth.
- Reversibility: conversion back to $MPC follows a defined, predictable process.
The system is designed to remove unnecessary friction while maintaining network stability and transparency.
Understanding this mechanism removes most of the uncertainty around liquid staking.
To start liquid staking, follow the guide here.
