Bitcoin custody: who can authorize a withdrawal?
Compare service balances, self-custody, hardware signers, and recovery responsibilities.
The reading desk
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Bitcoin mining: from candidate block to accepted history
Connect proof of work, validation, pool shares, and operating economics without confusing their roles.
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Ethereum accounts: addresses, keys, contracts, and nonces
Read account behavior without confusing a wallet application, an address, and the authority behind it.
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Ethereum gas: distinguish work, price, and spending caps
Calculate a hypothetical fee and learn why a reverted transaction can still cost ETH.
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Ethereum finality: from a quick receipt to finalized settlement
Understand head, justified and finalized checkpoints, and why application receipts can arrive before finality.
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Smart contracts: inspect the rules and the people who can change them
Learn what deployed code guarantees, what it cannot know, and how upgrades change the trust picture.
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Token approvals: understand the permission before the swap
Separate allowances, signatures, transfers, and website connections when controlling token access.
Notes in brief
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Token supply: read minting, burning, vesting, and circulation separately
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Token decimals: translate raw balances without changing value
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Stablecoin mechanics: identify the route back to the target value
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Stablecoin reserves: read the assets, liabilities, and access terms
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DeFi collateral: calculate the buffer before borrowing
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AMM liquidity: what a pool position actually owns
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DEX slippage: distinguish the quote, price impact, and tolerance
More perspectives
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Oracle design: examine where a protocol gets its facts
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Blockchain bridges: trace the claim on both sides
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Rollups: separate execution speed from settlement guarantees
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Data availability: why a valid commitment is not enough
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Protocol governance: follow a proposal through to execution
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Multisig wallets: a threshold is only the beginning
02 / Explore the complete library
The mechanism, explained
Go beyond the headline: understand how the moving parts fit together.
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Wallet backups: test recovery before you need it
Plan for device loss, missing passphrases, incompatible recovery, and secure succession without exposing wallet secrets.
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Crypto phishing: inspect the requested authority, not the urgency
Recognize malicious recovery requests, address substitution, and signatures that grant more than they appear to.
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Transaction explorers: read evidence without overreading labels
Follow status, contract calls, logs, and balance changes while separating public facts from explorer interpretation.
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Onchain metrics: define the observation before telling a story
Interpret active addresses, transfer value, fees, and locked assets without pretending they directly count people or demand.
Practical reading
Worked examples, verification steps and the limits of each tool.
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Trading volume quality: inspect what was counted and where
Separate spot turnover, derivatives notional, liquidity depth, and suspicious patterns before comparing markets.
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Market capitalization: useful arithmetic with important limits
Calculate circulating and diluted valuations while separating marginal price, supply estimates, liquidity, and token rights.
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Crypto research sources: build a claim-to-evidence trail
Use documentation, code, governance records, and independent observations without confusing first-party claims with proof.
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Protocol upgrades: distinguish proposal, release, activation, and migration
Follow network and contract changes through their actual lifecycle instead of treating an announcement as completed behavior.
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Staking: separate validator rewards from the service wrapper
Compare direct operation, pooled participation, liquid claims, penalties, fees, and withdrawal dependencies.
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MEV: understand how transaction ordering changes outcomes
Learn the differences between arbitrage, liquidation, and sandwich behavior, plus the limits of private transaction routes.
Questions worth asking
Read the assumptions before drawing a conclusion.
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NFT metadata: separate token ownership from the file it references
Inspect contract identity, token URIs, content addressing, storage persistence, and the limits of ownership claims.
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How to read a crypto whitepaper as a testable argument
Turn architecture and economic claims into questions about assumptions, implementation, incentives, and failure cases.
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Bitcoin UTXOs: why a balance consists of individual outputs
Understand inputs, change, coin selection, and the cost of spending many small receipts.
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Bitcoin confirmations: reading settlement as a process
Separate broadcast, inclusion, confirmation depth, and service crediting when receiving a payment.
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Bitcoin fees: calculate cost before choosing a speed
Learn fee rates, virtual size, input count, and the difference between accelerating and refunding.
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What a Bitcoin full node verifies for you
Distinguish validation, mining, wallet signing, and storage when deciding what a node accomplishes.