Design Patterns MCP Server

{ "id": "arweave-permanent", "name": "Arweave Permanent Storage", "category": "Storage", "description": "Pay-once permanent storage for critical data. Uses endowment model for perpetual availability.", "when_to_use": "Historical records, legal documents, permanent NFT storage", "benefits": "Permanent storage, one-time fee, immutable", "drawbacks": "Higher upfront cost, limited queryability, centralization risk", "use_cases": "Mirror.xyz, permanent NFTs, archival", "complexity": "Medium", "tags": [ "storage", "arweave", "permanent", "nft", "archival" ], "examples": { "solidity": { "language": "solidity", "code": "// Arweave transaction ID stored on-chain\ncontract PermanentNFT {\n mapping(uint256 => string) public arweaveIds;\n \n function mint(address to, string memory arweaveTxId) external {\n uint256 tokenId = _nextTokenId++;\n _mint(to, tokenId);\n arweaveIds[tokenId] = arweaveTxId; // e.g., \"ar://abc123...\"\n }\n}" } } }