Total Supply vs Circulating Supply in Token Data
Compare on-chain total supply with circulating-supply estimates, and document exclusions such as locked, treasury, custody or burned holdings.
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Practical guides to blockchain APIs, wallet data and the evidence behind a useful answer. Clear concepts, worked examples and better questions for your next integration.
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Token Symbol Collisions and Asset Identity
Prevent assets with matching symbols from merging by using chain and contract identifiers, while treating names, logos and tickers as display metadata.
Read the guideToken Allowance vs Balance: Different Questions
Distinguish a token owner’s balance from an allowance granted to a spender, including changing state and why approval is not a payment.
Read the guideERC-20 Permit: Signatures, Nonces and Deadlines
Understand permit-style token approvals, track nonce and deadline context, and avoid confusing an off-chain signature with an executed allowance change.
Read the guideWrapped Native Tokens: Deposits, Withdrawals and Transfers
Model wrapped-native-token activity separately from native currency, preserving deposit and withdrawal evidence without double-counting conversions.
Read the guideNFT Royalties: Quotes vs Executed Payments
Distinguish NFT royalty information from actual sale payouts, and avoid treating a royalty quote as proof that a marketplace paid the creator.
Read the guideDetecting Token Mints and Burns from Events
Interpret mint and burn evidence with contract-specific rules, supply checks and careful handling of zero-address transfer conventions.
Read the guideFinding NFT Ownership at a Historical Block
Answer who owned an NFT at a selected block using state or ordered transfer evidence, with explicit handling of minting, burning and incomplete history.
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DEX Spot Price vs Execution Price
Compare a pool’s marginal spot price with the price realised by a trade, including trade size, price impact, fees and unit conversion.
Read the guidePrice Impact vs Slippage in AMM Trades
Distinguish the curve effect of trade size from execution uncertainty, and explain how a slippage limit relates to a quoted minimum output.
Read the guideTWAP vs VWAP for Crypto Market Data
Choose time-weighted or volume-weighted prices with explicit observations, windows and missing-data rules, rather than averaging incompatible market records.
Read the guideOHLCV Candle Boundaries and Empty Intervals
Build reproducible market candles with half-open intervals, deterministic trade ordering and clear treatment of empty or late-arriving periods.
Read the guideQuote Currency and Pair Orientation in Crypto Prices
Read base and quote assets correctly, invert prices deliberately, and avoid combining token, stablecoin and fiat observations as if their units matched.
Read the guideLiquidity vs Trading Volume in Token Markets
Distinguish executed turnover from available market depth, and avoid using a busy market’s historical volume as proof that a new trade can execute cheaply.
Read the guideMarket Cap vs Fully Diluted Valuation
Explain market cap and fully diluted valuation using explicit price and supply definitions, including why neither metric measures available liquidity.
Read the guideStablecoin Price Data During a Depeg
Model stablecoin prices as observed market ratios, preserve venue and time context, and avoid hard-coding a one-to-one fiat valuation.
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Each guide starts with a concrete developer question and separates technical observations from the interpretation an application adds. Worked examples use illustrative values; references point to standards and technical documentation.
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