Diagrams

Nexus Mutual Platform Flow Diagram

This document merges multiple Cover and Staking flows with their underlying interactions across Token, Capital, Claims/Assessment, and Governance groupings. We use two comprehensive flows:

1. Buying Cover and Processing Claims
   • Includes:
     • Buying Cover (Cover ↔ Token ↔ Capital)
     • Submitting and Assessing Claims (Claims/Assessment ↔ Cover ↔ Capital ↔ Governance)
2. Staking Pool Management and Staking Lifecycle
   • Includes:
     • Pool creation and product listing (Staking ↔ Token)
     • Stakers redeeming rewards (Staking ↔ Token)
     • Burning NXM on approved claims (Claims/Assessment ↔ Staking ↔ Token)

We provide detailed steps and a Mermaid diagram for each flow, ensuring step numbering in both the text description and diagrams for clarity. Code blocks are escaped so they remain valid raw markdown.

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Buying Cover & Processing Claims

Step-by-Step

1. Buyer Purchases Cover
   (1a) Buyer calls buyCover(params, poolAllocationRequests) on Cover.
   (1b) Cover checks if buyer is a member via onlyMember modifier.
   (1c) Cover gets product info from CoverProducts.
   (1d) Cover mints NFT via CoverNFT if new cover.
   (1e) CoverNFT issues NFT to buyer.
   (1f) Cover requests allocations from StakingPool(s).
   (1g) Cover handles payment: - For NXM: Burns premium via TokenController - For ETH/ERC20: Transfers premium to Pool

2. Buyer Submits Claim
   (2a) Buyer calls submitClaim() on IndividualClaims.
   (2b) IndividualClaims validates:

   • Cover ownership via CoverNFT.isApprovedOrOwner()
   • Cover validity via Cover.coverSegmentWithRemainingAmount()

   (2c) IndividualClaims starts assessment via Assessment.startAssessment().

3. Claim Assessment
   (3a) Assessors call castVotes() on Assessment.
   (3b) Assessment locks staked NXM via TokenController.
   (3c) When voting ends:

   • If accepted: Claim can be redeemed
   • If denied: Claim deposit funds rewards

4. Claim Payout
   (4a) Buyer calls redeemClaimPayout() on IndividualClaims.
   (4b) IndividualClaims calls Cover.burnStake() to burn staker's NXM.
   (4c) IndividualClaims calls Pool.sendPayout() which: - Transfers claim amount in cover asset - Returns assessment deposit in ETH

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Staking Pool Management & Staking Lifecycle

Step-by-Step

1. Pool Manager Creates a New Staking Pool (1a) Manager calls "createStakingPool()" on StakingProducts.
   (1b) StakingProducts calls "create()" on StakingPoolFactory.
   (1c) StakingPoolFactory deploys new StakingPool.
   (1d) StakingProducts assigns manager via TokenController.
   (1e) StakingProducts sets initial products and metadata.

2. Manager Updates Pool Products (2a) Manager calls "setProducts()" on StakingProducts.
   (2b) StakingProducts updates weights and prices in StakingPool.

3. Staker Deposits NXM (3a) Staker calls "depositTo(amount, trancheId, tokenId, dest)" on StakingPool.
   (3b) StakingPool validates and calculates shares, calls "depositStakedNXM()" on TokenController.
   (3c) TokenController updates pool balance and calls "operatorTransfer()" on NXMToken.

4. Staker Withdraws Stake/Rewards (4a) Staker calls "withdraw()" on StakingPool.

   • Optional: Check withdrawable amounts first via NexusViewer ("getClaimableNXM()", "getStakedNXM()")

   (4b) StakingPool calculates amounts, calls "withdrawNXMStakeAndRewards()" on TokenController.
   (4c) TokenController calls transfers on NXMToken. (4d) NXMToken transfer stake + rewards to Staker

5. Claim Redemption Burns Stake and Pays Claimant If a claim is approved the claimant is paid from the staked NXM. (5a) Claimant calls "redeemClaimPayout()" on IndividualClaims.
   (5b) IndividualClaims calls "burnStake()" on Cover.
   (5c) Cover calls "burnStake()" on affected StakingPool(s).
   (5d) StakingPool calls "burnStakedNXM()" on TokenController.
   (5e) TokenController burns tokens via NXMToken.
   (5f) IndividualClaims calls "Pool.sendPayout()" which:

   • Transfers claim amount in cover asset
   • Returns assessment deposit in ETH