⛓️ Blockchain & Web3

Blockchain & Web3 architecture diagram templates

Crypto exchanges, wallets and custody, NFT marketplaces, DeFi and smart contract workflows. Open any template to see the finished diagram, then use it as the starting point for your own in the Studio.

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11 templates

C4 ArchitecturePro

Crypto Exchange Architecture

The main parts of a centralised crypto exchange: a matching engine, wallets split between hot and cold storage, deposits and withdrawals, and compliance checks.

Sequence

Crypto Withdrawal Sequence

How an exchange processes a crypto withdrawal safely: balance hold, 2FA, risk and address screening, signing, broadcast and confirmations.

C4 ArchitecturePro

NFT Marketplace

How an NFT marketplace works: listings signed off-chain, metadata on IPFS, and sales settled by a marketplace smart contract.

Flowchart

Smart Contract Upgrade Process

How a team safely upgrades a smart contract behind a proxy: audit, testnet rehearsal, multi-signature approval and a timelock before the change goes live.

State Machine

Blockchain Transaction States

The states a blockchain transaction goes through from signing to final confirmation, including replacement and dropped transactions.

Network

Hot and Cold Wallet Custody

How a custodian separates internet-connected hot wallets from offline cold storage, with signing hardware and an air-gapped transfer process.

DeploymentPro

Web3 dApp Deployment

Where a decentralised app's parts run: frontend on IPFS, contracts on a layer-2 chain, and supporting services like RPC providers and an indexer.

Sequence

DeFi Lending and Liquidation

How a DeFi lending protocol works: deposit collateral, borrow, and what happens when the collateral value falls and a liquidator steps in.

Database ERD

Crypto Wallet and Holdings Schema

Tables for a crypto portfolio app: users, wallets on different chains, tokens, balances and transaction history.

Flowchart

DAO Governance Proposal Flow

How a DAO makes a decision: forum discussion, an on-chain proposal, token voting, quorum, a timelock and execution.

Mindmap

Web3 Building Blocks

The main building blocks of Web3 applications, for teams deciding what their product needs.

More Blockchain & Web3 templates are being added regularly.