Dive into blockchain infrastructure from running a node to understanding Layer 1 and Layer 2 scaling solutions like rollups and sidechains
Argo Blockchain: Operations, Strategy, and the Economics of Sustainable Bitcoin Mining A deep, beginner-friendly yet professional guide to Argo Blockchain (ARB): history, facilities, energy strategy, costs, risk controls, governance, and how mining businesses survive across crypto market cycles. Quick navigation: Introduction • Origins & Evolution • Mining Operations • Energy & Sustainability • Unit Economics […]
Argo Blockchain (ARB) Explained Read More »
Cardano Blockchain Platform: A Complete Beginner-to-Pro Guide Understand Cardano’s vision, layered architecture, Ouroboros consensus, staking economy, eUTXO model, scalability (Hydra, Mithril), governance, and how it compares to other chains. Quick navigation: Introduction • Why Cardano • Layered Architecture • eUTXO Model • Ouroboros • Staking & Delegation • Scaling (Hydra, Mithril) • Smart Contracts •
Cardano Blockchain Platform Read More »
Distributed Computing in Blockchain: From Zero to Clarity A practical, visual guide to how thousands of independent machines coordinate, agree, and secure a public ledger without a central authority. Quick navigation: Basics • How blockchains use it • Transaction flow • Consensus & security • Scalability trilemma • PoW vs PoS • Applications • Deep
Distributed Computing in Blockchain Read More »
RPCs and Nodes: Accessing the Chain Reliably and Safely Node types, JSON RPC patterns, reliability architectures, and production grade security practices for real dapps. TL;DR: Pick deliberately between public endpoints, hosted providers, and self run nodes (full or archival). Build resiliency with multi provider failover or quorum RPC. Build safety with chain checks, simulation, finalized
RPCs and Nodes (Clients, Reliability, Security) Read More »
Indexing and Querying: The Graph, Subgraphs and GraphQL From raw on chain events to queryable APIs: subgraph schemas, mappings, indexing economics, and production grade query patterns. TL;DR: The Graph turns contract events and call results into a GraphQL API using a subgraph that declares a schema, a manifest of what to watch, and mapping functions
Indexing and Querying (The Graph) Read More »
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
Multi-sig Wallets (Safe/Gnosis) and MPC Overview Read More »
Sidechains & State Channels Two non-rollup scaling approaches: separate chains with their own security, and off-chain micro-transactions with on-chain settlement. TL;DR: Sidechains: Independent consensus + bridge to L1. Cheaper, but inherit sidechain security (not L1). State channels: Lock funds on L1, exchange signed updates off-chain, settle final state on-chain. Great for rapid, repeated interactions. In
Sidechains and State Channels Read More »
ZK Rollups: zkSync & StarkNet Validity proofs compress execution and prove correctness to Ethereum for fast finality and withdrawals. TL;DR: ZK rollups submit validity proofs so Ethereum can verify a batch is correct. Withdrawals are typically faster; tradeoffs include prover complexity/cost and EVM compatibility differences. In this lesson How ZK rollups work EVM-compatibility spectrum zkSync
ZK Rollups zkSync vs StarkNet Read More »
Optimistic Rollups: Arbitrum & Optimism Scale Ethereum by executing off-chain and posting data on-chain, fraud proofs keep things honest. TL;DR: Optimistic rollups assume transactions are valid by default; anyone can challenge via fault/fraud proofs. Cheap & EVM-friendly, but withdrawals wait through a challenge window. In this lesson How optimistic rollups work Bridging & the challenge
Optimistic Rollups (Arbitrum, Optimism) Read More »
Layer 1s: Ethereum vs Solana vs Avalanche Three popular base layers with different tradeoffs in security, performance, and developer experience. TL;DR: Ethereum (PoS, EVM-first): Deepest liquidity & ecosystem; scales via L2 rollups. Solana (PoH + PoS, parallel runtime): High throughput, single global state, fast finality. Avalanche (Snow consensus, subnets): Customizable app chains with fast finality.
Ethereum vs Solana vs Avalanche (L1 overview) Read More »
