Smart Contracts

Distributed Computing in Blockchain: From Zero to Clarity

Blockchain fundamentals, nodes, consensus, distributed systems, and network security Distributed Computing in Blockchain: From Zero to Clarity Distributed computing in blockchain is the reason a public ledger can exist without one central company, bank, server, or administrator controlling it. Instead of trusting one machine to store the truth, thousands of independent nodes store data, validate […]

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Add Base Sepolia to MetaMask

Blockchain Basics, Smart Contracts / Wisdom Uche Ijika

Add Base Sepolia to MetaMask: Complete, Fast, and Safe Guide Add Base Sepolia to MetaMask correctly before you test dApps, deploy smart contracts, claim test ETH, bridge test assets, or experiment with the Base ecosystem. Base Sepolia is the public test network for Base, an Ethereum Layer 2 built on the OP Stack. It gives

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How to Add Arbitrum Sepolia to MetaMask

Blockchain Basics, Smart Contracts / Wisdom Uche Ijika

How to Add Arbitrum Sepolia to MetaMask (Complete Guide) If you are trying to add Arbitrum Sepolia to MetaMask, you are basically doing one thing: telling your wallet how to talk to the Arbitrum Sepolia test network. Once MetaMask has the correct network settings, you can switch to Arbitrum Sepolia, receive test ETH, deploy contracts,

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Privacy Coins vs Compliance (design choices, risks, controls)

Smart Contracts, DeFi and Staking / Wisdom Uche Ijika

Privacy Coins vs Compliance: Risk-Based Controls, ZK Credentials and KYT Limits (Complete Guide) Privacy Coins vs Compliance is not a debate between good and bad actors. It is an engineering and governance problem: how to support legitimate financial privacy while meeting regulatory expectations for anti money laundering, counter terrorist financing, sanctions screening, and Travel Rule

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Cryptocurrency Regulatory Approaches Worldwide (landscape and comparison lenses)

Security and Best Practices, DeFi and Staking, Smart Contracts / Wisdom Uche Ijika

Regulatory Approaches Worldwide: How Regions Supervise Crypto and Web3 (Complete Guide) Cryptocurrency Regulatory Approaches Worldwide is the practical map builders and operators need: what triggers licensing, how AML and Travel Rule expectations show up, how stablecoins and custody are treated, and how to design a compliance posture that survives expansion across regions. This guide breaks

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KYC and AML in Web3 (risk-based CDD, KYT, Travel Rule concepts)

Security and Best Practices, Blockchain Basics, DeFi and Staking, Smart Contracts / Wisdom Uche Ijika

Regulation and Compliance: KYC and AML in Web3 (Risk-Based CDD, KYT and Travel-Rule Concepts) KYC and AML in Web3 is not just paperwork. It is a production system that identifies customers, monitors flows, prevents sanctions exposure, and keeps your product usable without turning into a surveillance machine. This guide explains how to build a risk-based

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RPCs and Nodes (Clients, Reliability, Security)

Nodes, L1/L2, Rollups, DeFi and Staking, Smart Contracts / Wisdom Uche Ijika

RPCs and Nodes: Accessing the Chain Reliably and Safely (Complete Guide) RPCs and Nodes are the hidden backbone of every wallet, dApp, bot, indexer, and analytics dashboard. If your RPC layer is slow, inconsistent, or unsafe, your product becomes slow, inconsistent, and unsafe. This complete guide breaks down node types, JSON-RPC and WebSocket patterns, reliability

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Decentralized Storage (IPFS, Arweave, Filecoin)

NFTs and Token Standards, DeFi and Staking, Smart Contracts / Wisdom Uche Ijika

Decentralized Storage: IPFS, Arweave, and Filecoin (Complete Guide) Decentralized Storage: IPFS, Arweave, and Filecoin is the practical blueprint for shipping Web3 apps that do not lose their assets, metadata, proofs, or archives when a server disappears. This guide breaks down content addressing, pinning, gateways, permanence versus leases, Filecoin deals and proofs, Arweave bundles and the

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Indexing and Querying (The Graph)

DeFi and Staking, Nodes, L1/L2, Rollups, Smart Contracts / Wisdom Uche Ijika

Indexing and Querying: The Graph, Subgraphs and GraphQL (Complete Guide) Indexing and Querying: The Graph, Subgraphs and GraphQL is how serious Web3 products turn raw on-chain activity into fast dashboards, analytics, and clean APIs. This complete guide explains the full indexing pipeline, how to design entities that match product questions, how to write deterministic mappings

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Oracles in web3 (Chainlink, Pyth)

Blockchain Basics, DeFi and Staking, Smart Contracts / Wisdom Uche Ijika

Oracles in Web3: Bringing Real-World Data On Chain (Chainlink and Pyth) Complete Guide Smart contracts cannot browse the web, call an API, or check a stock price on their own. An oracle is the bridge between on chain execution and off chain facts. If you build lending markets, perps, options, vaults, RWA apps, games, lotteries,

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Smart Contracts

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