AnalysisAdvanced
Reentrancy Attacks Told Through Real Exploits
The DAO, Fei, Cream — the pattern that ate $50M and how the fix works. The most-cited smart-contract vulnerability.
8 min read
★ Library19 guidesPlain EnglishFilter: Security
Crypto guides · Security
Beginner-to-advanced crypto guides on Bitcoin, Ethereum, DeFi, staking, wallets, taxes, and security. Step-by-step tutorials backed by hands-on testing.
Topics
Click to filter the libraryBrowse by topic
EthereumResearchBitcoinHow-ToAnalysisInvestingSecurityMarketDeFiRegulation
Showing 9 of 19
GuidesIntermediate
How to Verify a Contract Yourself
Source verification, proxy verification, and the trust it actually earns. The habit that protects you from unverified rugpulls.
6 min read
GuidesIntermediate
Digital Signatures — ECDSA vs Schnorr
What a signature proves, why Schnorr matters, and what Taproot did with it. The primitive that lets crypto wallets exist.
7 min read
GuidesBeginner
Public-Key Cryptography, Explained for Crypto Users
Private keys, public keys, addresses, signatures. The math that makes wallets work, without the math.
7 min read
SecurityAdvanced
CoinJoin and On-Chain Privacy Today
Wasabi, Whirlpool successors, and where Bitcoin privacy tooling stands after the 2024 enforcement wave. What still works and what does not.
8 min read
SecurityAdvanced
Multisig Bitcoin Setups Compared
2-of-3, 3-of-5, collaborative custody. The realistic options for splitting keys across devices and locations, and the tradeoffs each imposes.
8 min read
GuidesIntermediate
Running a Bitcoin Node — Full, Pruned, Archive
Node types compared: full, pruned, archive. Storage cost, hardware, and the honest question of who actually benefits from running one.
8 min read
ResearchAdvanced
Solana Validators: Inflation, MEV, and Jito Tips
How Solana validators actually earn — inflation rewards, MEV through Jito, and the staking economics that make running a validator viable.
8 min read
GuidesBeginner
Memecoin Survival Guide: 7 Rules to Not Get Rugged
Seven hard rules for trading memecoins in 2026 without losing everything to rug pulls, drainers, or your own bad decisions.
6 min read