BitBlock
System Design Roadmap, bitblockCryptocurrency for Beginners: Complete 2025 Guide to Digital Assets
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 18 | Subscribers | Read | bitblock.substack.com |
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Latest Issues
Recent posts by this newsletter. Browse the email archive.
Hardware vs Software Wallets: Security Trade-offs Analysis
Last week, I watched a DeFi protocol architect lose $2.3 million in a single transaction. Not to a smart contract exploit or oracle manipulation, but because his hot wallet's private key was extracted by malware while he was approving a rou...
Cryptocurrency Wallets Architecture: How Digital Asset Storage Works
Last month, I watched a seasoned DeFi developer lose $200,000 in a single transaction. Not from a smart contract exploit or oracle manipulation, but from a fundamental misunderstanding of how wallet architecture actually works. He assumed h...
Crypto Keys Guide: Mastering Public and Private Key Security
Issue #11 of "Cryptocurrency and Bitcoin Mastery" - Part II: Security & Access
Digital Signatures & Public Key Infrastructure in Cryptocurrency
Part I - Foundations
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