StEver

StEver is a staking platform that aggregates real network validators in one place. This platform has the ability to automatically balance between validators.

This project resolves problems:

1. Users shouldn't select a validator for them self
2. Users shouldn't freeze their money, after stake user will receive StEver tokens based on the current rate

Functional Description

Actors

1. StEverVault - a contract that aggregates all validators and provides the ability to stake
2. User - a person who wants to stake his money
3. StEverAccount - a user account that represents user's withdrawal requests
4. StEver - a token that represents the user's stake in the StEverVault
5. StEverGovernance - a software that manage ever tokens between connected validators
6. StEverStrategy - an abstraction that represents a connector to DePool contract
7. StEverCluster - a contract that aggregates strategies owned by a validator

Actors behavior

StEverVault

This is the main entry point for each user, owner, governance operations. It keeps all ever assets, and also it is the StEver token issuer. Let's dig into the StEverVault functionality:

1. Deposit - StEver.deposit user can deposit his ever tokens to the StEverVault and receive StEver tokens in return
2. Withdraw - StEver.onAcceptTokensTransfer user can withdraw his ever tokens from the StEverVault by sending StEver tokens to the StEverVault. After it inside the user's StEverAccount will be created new withdrawal request (withdraw request can also be canceled by the user). When withfrawHoldTime will be passed, and StEverGovernance will process this request, user will receive his ever tokens + reward back

StEverCluster

If the validator wants to participate to StEver project he should get in touch with StEver admins. After some checks, if a validator pass our checks we will create a StEverCluster contract for him.

Integrate validator functionality

1. Admin will call StEver.createCluster, after this call new cluster will be added to clusterPools mapping. Then cluster address will be provided to validator
2. Validator going to deploy his DePool contracts and call StEverCluster.deployStrategies with DePool addresses
3. Each cluster has its own constrains such as maxStrategiesCount and assurance. maxStrategiesCount is a maximal strategy count that can be created by the Cluster. assurance is Assurance that should be provided by the clusterOwner to his Cluster. assurance is StEver value, so the clusterOwner should make a StEver token transfer to the Cluster address
4. When all constraints are satisfied, the validator can obtain strategies addresses, and call StEverCluster.addStrategies with strategies addresses. After its strategies will be added to the StEverVault and will be available for staking

StEverGovernance

This is software that has access to re-balance ever tokens between connected strategies, and also it manages withdrawals for users.

Re-balance functionality

1. StEverVault.depositToStrategies
2. StEverVault.processWithdrawFromStrategies

Withdraw request satisfaction

1. StEverVault.processSendToUsers

Deploy

npm i

SEED="{{seed phrase}}" \
MAIN_GIVER_KEY={{giver secret key}} \
npx locklift run --disable-build --network mainnet -s scripts/1_deploy-and-setup-stEverVault.ts

Deploy params:

1. MultiSig admin(owner) wallet address: StEverVault owner
2. TokeRoot address: StEver token root address
3. Governance PUBLIC key: bot public key
4. StEverVault deploy value (nano ever), min 100 ever
5. GainFee (nano ever), min 1 ever: StEverVault will take gainFee from each strategy report to maintain the required gas level (1 ever is recommended)
6. StEver platform fee (0..1000), 1% == 10: This fee will aggregate (as a platform fee) for future withdrawal to the admin

Get upgrade code

npx locklift run --disable-build --network mainnet -s scripts/2_fix_upgrade.ts

Change log

[v2]

Fixes

[v3] - Cluster

This update provides validators the possibility to control their strategies for themselves (in the previous version only stEverOwner could add and remove strategies from StEverVault)

Added

• Cluster entity was added to the StEverVault, now actions like deploy, add and delete strategy only allowed by the Cluster contract. Cluster can be created only by the stEverOwner. Each cluster includes constraints such as maxStrategiesCount and assurance.
  • maxStrategiesCount - maximal strategy count that can be created by the Cluster
  • assurance - Assurance that should be provided by the clusterOwner to his Cluster. assurance is StEver value, so the clusterOwner should make a StEver token transfer to the Cluster address

Now interaction with strategies looks like this:

1. We need to create a Cluster, this method can be called by stEverOnwer only

• Other operations should be done by clusterOwner

2. Deploy strategies via Cluster.deployStrategies(_dePools=deppolssAddress[])
3. Attach strategies to the StEver Cluster.addStrategies(_strategies=strategiesAddresses[])

• Remove strategies

1. Cluster.removeStrategies(_strategies=strategiesAddresses[])

[V4]

With this update we improve withfrawHoldTime for each user. This is anti-abuse mechanism that allows to withdraw only after withfrawHoldTime from the withdrawal request.

Added

• Filed withfrawHoldTime - time that should be passed from the withdrawal request to the withdrawal itself
• Each withdrawal request has its own unlockTime that is calculated as now + withfrawHoldTime

[V5]

This update provide reduction factor for rewards. This factor is used to reduce growing of ever/stEver ratio. And now users are obtaining their rewards immediately after the stake was made (each second rate are growing). Instead of obtaining rewards immediately after strategy report.