docs/
└── tutorials/
└── blockchain/
├── index.mdx
├── introduction/
│ ├── what-is-blockchain.mdx
│ ├── how-blockchain-works.mdx
│ ├── blockchain-characteristics.mdx
│ ├── blockchain-vs-databases.mdx
│ ├── public-private-consortium.mdx
│ └── real-world-use-cases.mdx
├── fundamentals/
│ ├── blocks-and-transactions.mdx
│ ├── distributed-ledgers.mdx
│ ├── nodes-and-peers.mdx
│ ├── blocks-and-hashing.mdx
│ ├── merkle-trees.mdx
│ ├── forks-and-chain-reorganization.mdx
│ └── blockchain-limitations.mdx
├── cryptography/
│ ├── cryptographic-hashing.mdx
│ ├── public-private-keys.mdx
│ ├── digital-signatures.mdx
│ ├── wallet-addresses.mdx
│ ├── elliptic-curve-cryptography.mdx
│ ├── randomness-and-entropy.mdx
│ └── cryptography-best-practices.mdx
├── consensus/
│ ├── consensus-overview.mdx
│ ├── proof-of-work.mdx
│ ├── proof-of-stake.mdx
│ ├── byzantine-fault-tolerance.mdx
│ ├── validators-and-miners.mdx
│ ├── finality-and-confirmations.mdx
│ └── consensus-tradeoffs.mdx
├── development-setup/
│ ├── prerequisites.mdx
│ ├── nodejs-and-npm.mdx
│ ├── typescript-setup.mdx
│ ├── local-blockchain.mdx
│ ├── hardhat-setup.mdx
│ └── foundry-setup.mdx
├── ethereum/
│ ├── ethereum-overview.mdx
│ ├── accounts-and-addresses.mdx
│ ├── transactions-and-gas.mdx
│ ├── ethereum-virtual-machine.mdx
│ ├── execution-and-consensus.mdx
│ ├── rpc-providers.mdx
│ ├── testnets.mdx
│ └── layer-two-networks.mdx
├── solidity/
│ ├── introduction.mdx
│ ├── contract-structure.mdx
│ ├── data-types.mdx
│ ├── variables-and-constants.mdx
│ ├── functions-and-modifiers.mdx
│ ├── visibility-and-mutability.mdx
│ ├── mappings-and-arrays.mdx
│ ├── structs-and-enums.mdx
│ ├── events-and-errors.mdx
│ ├── inheritance.mdx
│ ├── interfaces-and-libraries.mdx
│ ├── receive-and-fallback.mdx
│ └── gas-optimization.mdx
├── smart-contracts/
│ ├── what-are-smart-contracts.mdx
│ ├── deployment-lifecycle.mdx
│ ├── storage-memory-calldata.mdx
│ ├── access-control.mdx
│ ├── contract-interactions.mdx
│ ├── upgradeability.mdx
│ └── contract-verification.mdx
├── development-tools/
│ ├── hardhat.mdx
│ ├── foundry.mdx
│ ├── remix-ide.mdx
│ ├── ethers-js.mdx
│ ├── viem.mdx
│ ├── wallet-integration.mdx
│ └── block-explorers.mdx
├── testing/
│ ├── unit-testing.mdx
│ ├── integration-testing.mdx
│ ├── fuzz-testing.mdx
│ ├── invariant-testing.mdx
│ ├── fork-testing.mdx
│ ├── gas-testing.mdx
│ └── test-coverage.mdx
├── security/
│ ├── reentrancy.mdx
│ ├── access-control-vulnerabilities.mdx
│ ├── integer-arithmetic.mdx
│ ├── oracle-manipulation.mdx
│ ├── front-running-and-mev.mdx
│ ├── denial-of-service.mdx
│ ├── signature-replay.mdx
│ ├── secure-randomness.mdx
│ ├── audit-workflow.mdx
│ └── security-checklist.mdx
├── decentralized-applications/
│ ├── dapp-architecture.mdx
│ ├── frontend-wallet-connection.mdx
│ ├── reading-contract-data.mdx
│ ├── writing-contract-data.mdx
│ ├── transaction-status.mdx
│ ├── network-switching.mdx
│ ├── events-and-indexing.mdx
│ └── user-experience.mdx
├── tokens-and-standards/
│ ├── fungible-tokens.mdx
│ ├── erc-20.mdx
│ ├── non-fungible-tokens.mdx
│ ├── erc-721.mdx
│ ├── erc-1155.mdx
│ ├── token-approvals.mdx
│ └── token-security.mdx
├── defi/
│ ├── decentralized-finance.mdx
│ ├── decentralized-exchanges.mdx
│ ├── liquidity-pools.mdx
│ ├── lending-and-borrowing.mdx
│ ├── stablecoins.mdx
│ ├── price-oracles.mdx
│ └── defi-risks.mdx
├── scaling-and-interoperability/
│ ├── scalability-challenges.mdx
│ ├── layer-two-rollups.mdx
│ ├── optimistic-vs-zk-rollups.mdx
│ ├── bridges-and-cross-chain.mdx
│ ├── interoperability-risks.mdx
│ └── data-availability.mdx
├── infrastructure/
│ ├── blockchain-nodes.mdx
│ ├── rpc-services.mdx
│ ├── event-indexing.mdx
│ ├── decentralized-storage.mdx
│ ├── ipfs-fundamentals.mdx
│ ├── oracles-and-external-data.mdx
│ └── monitoring-and-logging.mdx
├── privacy-and-governance/
│ ├── onchain-vs-offchain-data.mdx
│ ├── privacy-limitations.mdx
│ ├── decentralized-governance.mdx
│ ├── dao-fundamentals.mdx
│ └── governance-security.mdx
├── projects/
│ ├── toy-blockchain.mdx
│ ├── digital-certificate.mdx
│ ├── voting-contract.mdx
│ ├── crowdfunding-dapp.mdx
│ ├── erc20-token.mdx
│ ├── nft-collection.mdx
│ ├── onchain-credential-system.mdx
│ └── production-dapp.mdx
├── troubleshooting/
│ ├── deployment-errors.mdx
│ ├── transaction-reverts.mdx
│ ├── gas-estimation-errors.mdx
│ ├── wallet-connection-errors.mdx
│ ├── rpc-errors.mdx
│ └── contract-verification-errors.mdx
├── interview-questions/
│ ├── beginner.mdx
│ ├── intermediate.mdx
│ ├── advanced.mdx
│ └── scenario-based.mdx
├── exercises/
│ ├── beginner-labs.mdx
│ ├── intermediate-labs.mdx
│ ├── advanced-labs.mdx
│ └── solutions.mdx
├── reference/
│ ├── solidity-cheatsheet.mdx
│ ├── ethereum-glossary.mdx
│ ├── evm-and-gas-reference.mdx
│ ├── security-checklist.mdx
│ └── official-resources.mdx
└── assets/
├── images/
└── diagrams/