DeFi & Staking

Multi-sig Wallets (Safe/Gnosis) and MPC Overview

DeFi & Staking, Nodes, L1/L2, Rollups, Security & Best Practices, Smart Contracts / Wisdom Uche Ijika

Multi-sig Wallets and MPC: Shared Control, Fewer Single Points of Failure Set m-of-n approvals for treasury moves, upgrade rights, or personal vault safety. Compare on-chain multisig and MPC, design pragmatic policies, and avoid common operational mistakes. TL;DR: A multisig is a smart-contract account that executes only after m-of-n owner approvals; policy is transparent and enforceable […]

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ENS and Web3 Domain Names

Crypto Wallets, DeFi & Staking, Smart Contracts / Wisdom Uche Ijika

ENS and Web3 Domain Names: Human-Readable Addresses that Travel With You Turn hex addresses into names people remember, route many wallets through one handle, publish an avatar and profile once, and build safer team workflows with subdomains and fuses. This masterclass explains how naming works on chain, why it matters for UX and brand, and

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Stablecoins (USDC, DAI, Algorithmic Risks)

DeFi & Staking / Wisdom Uche Ijika

Stablecoins: USDC, DAI & Algorithmic Risks How different designs hold a peg, what can go wrong under stress, and a practical playbook for safer usage. TL;DR: Fiat-backed stables (e.g., USDC) hold off-chain reserves and rely on issuer redemptions and banking rails. Over-collateralized crypto stables (e.g., DAI) mint against on-chain collateral with risk parameters (fees, liquidation

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Yield Farming and Liquidity Pools

DeFi & Staking / Wisdom Uche Ijika

Yield Farming & Liquidity Pools Where LP yield comes from (fees, incentives), impermanent loss, pool types, and a practical checklist to avoid common pitfalls. TL;DR: LP yield = trading fees + optional token incentives – impermanent/divergence loss − gas & management costs. Stable/pegged pairs minimize IL. Concentrated-liquidity (CLMM) boosts fee density but adds range risk

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AMMs and DEXs (Uniswap, Curve)

DeFi & Staking / Wisdom Uche Ijika

AMMs & DEXs: Uniswap & Curve Explained Constant-product markets, concentrated liquidity, stable-swap curves, slippage, fees, and MEV. everything you need to trade or provide liquidity with confidence. TL;DR: AMMs price assets via math, not order books. Uniswap uses constant-product (x·y=k) and now concentrated liquidity; Curve optimizes for stable pairs with a low-slippage “stable-swap” curve. Mind

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Lending and Borrowing (Aave, Compound)

DeFi & Staking / Wisdom Uche Ijika

Lending & Borrowing in DeFi (Aave, Compound) How supply/borrow markets work, APYs, collateral, liquidations, and the risks to understand before you click “deposit”. TL;DR: You supply assets to earn variable APY and receive receipt tokens (aTokens on Aave, cTokens on Compound). You can borrow against posted collateral within limits. If your health factor drops (price

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Auditing and Testing (Foundry/Hardhat, fuzzing, static analysis)

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

Auditing & Testing: From Unit Tests to Fuzzing & Invariants Ship with confidence: rigorous tests, automated checks, and structured reviews before mainnet. TL;DR: Use Foundry or Hardhat for unit/integration tests, add fuzzing/invariant tests, run static analysis (Slither), measure coverage, and follow an audit checklist with clear threat models. In this lesson Tooling Stack Foundry Example

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Real-World DApps Examples

Smart Contracts, DeFi & Staking / Wisdom Uche Ijika

Real-World DApps: Patterns, Flows & Integration From token swaps to crowdfunding: on-chain contracts + front-end + wallet + indexers. TL;DR: A DApp = Smart contract + Front-end + Wallet + RPC/Indexers. Learn common flows you can implement and test end-to-end. In this lesson DApp Architecture DEX Swap (Uniswap-style) NFT Mint Crowdfunding (escrowed) Multisig & Wallet

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Staking & Restaking: Risks and Rewards

DeFi & Staking / Wisdom Uche Ijika

Staking & Restaking: Risks and Rewards Intermediate DeFi • ~11 min read • Updated: 08/08/2025 TL;DR: In Proof-of-Stake (PoS), validators lock capital to secure the network and earn rewards. You can participate directly (solo), delegate to professionals, or use liquid staking to get a tradable receipt (an LST). Know the tradeoffs: slashing (penalties for misbehavior),

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Liquidity Pools, AMMs & Impermanent Loss.

DeFi & Staking / Wisdom Uche Ijika

Liquidity Pools, AMMs & Impermanent Loss Beginner DeFi • ~10 min read • Updated: 08/08/2025 TL;DR: AMMs replace order books with liquidity pools. Prices come from math, often the constant-product rule x·y = k. LPs earn swap fees but face impermanent loss (IL) when token prices diverge. You can reduce IL with stable pairs, dynamic-fee

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