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- Defined error codes for various contract errors including invalid operator, invalid commitment, challenge period, invalid proof, insufficient funds, invalid input, and unauthorized access.
- Defined data maps for tracking registered operators, state commitments, user balances, and active challenges.
- Defined `contract-owner` data variable to store the contract owner's principal. - Added private functions for validating principals, uint values, commitment hashes, and Merkle proofs.
…ubmission - Added `register-operator` function to allow the contract owner to register new operators. - Added `submit-state-commitment` function to enable operators to submit new state commitments with validation and STX transfer.
- Added `challenge-commitment` function to allow users to challenge existing state commitments by providing a challenge block, commitment hash, and challenge proof. - Validates inputs and transfers a challenge bond before storing the challenge details.
- Added `deposit` function to allow users to deposit tokens into the rollup. - Validates the amount and token identifier before transferring tokens and updating the user balance.
…he rollup - Added `withdraw` function to allow users to withdraw tokens from the rollup, validating inputs and Merkle proof before updating balances and transferring tokens. - Added `transfer-in-rollup` function to enable token transfers between users within the rollup, ensuring sufficient balance and updating user balances accordingly.
…or getting user balance - Added `resolve-challenge` function to resolve challenges against state commitments, validating inputs and ensuring the existence of the challenge and commitment. - Added `get-user-balance` read-only function to retrieve the balance of a user for a specific token.
…tion guidelines, License, Security policy, and Technical specifications
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Overview
This PR implements a comprehensive Layer 2 rollup solution for the Stacks blockchain, enabling high-throughput transactions with robust security guarantees.
Changes
Core Contract Implementation
Public Functions
Operator Management
register-operator: Secure operator registrationsubmit-state-commitment: State commitment submission with validationChallenge System
challenge-commitment: Challenge submission with bond requirementresolve-challenge: Challenge resolution mechanismToken Operations
deposit: Secure token depositswithdraw: Merkle-proof based withdrawalstransfer-in-rollup: Efficient internal transfersget-user-balance: Balance query functionDocumentation
Security Considerations
Testing
Deployment Steps
Documentation Updates
/docsChecklist