All terms
All termsAddressBlockBlock timeBlockchainConfirmationGasGweiHashMempoolNodePrivate keyPublic keySeed phraseTransactionWalletAll time high (ATH)Bear marketBull marketCandlestickCapitulationChart patternsDollar cost averaging (DCA)Funding rateLeverageLimit orderLiquidationLiquidityMarket capMarket orderOrder bookPosition sizingRisk managementSlippageSpreadSupport and resistanceTrendVolatilityVolumeWhaleAMMBridgeCEXDAODeFiDepegDEXFlash loanGovernance tokenImpermanent lossLiquidity poolLP tokenOraclePerpetual (perp)RestakingRWAStablecoinTVLWrapped tokenYield farmingAirdropAlphaApe inBagholderDegenDiamond handsFloor priceFOMOFUDGMHODLMaxiMeme coinMoonNFTNGMINormiePaper handsPFPRektShillSnapshotWAGMIAddress poisoningCold storageCustodyDue diligence (DYOR)Dusting attackExit scamFront runningHardware walletHoneypotHot walletMEVMultisigPhishingPump and dumpRug pullSandwich attackSelf custodySIM swapToken approvalTwo factor authenticationWallet drainerWash tradingAccount abstractionAppchainBlock explorerCirculating and total supplyConsensusData availabilityEVMFaucetFinalityForkFully diluted valuation (FDV)Gas warHalvingLayer 1Layer 2Layer 3MainnetMiningName serviceOptimistic rollupProof of stakeProof of workRollupShardingSidechainSlashingSmart contractStakingTestnetToken standardTokenomicsValidatorZero knowledge proofZK rollupArweave and the permawebComposabilityCross chain messagingdAppDecentralized identity (DID)DePINGameFi and play to earnIndexerInteroperabilityIPFSOnchain and offchainSession keysSmart accountSocialFiSoulbound tokenSybil resistanceToken gatingWeb2 vs Web3Web3
Definition
A signed instruction to change the state of the blockchain.
A transaction says what you want to happen: move this token, call this contract, deploy this code. You sign it with your private key, broadcast it to the network, and wait for a validator to include it in a block.
Once included and confirmed, it is permanent. There is no chargeback, no reversal and no dispute process. That finality is a feature and a hazard in equal measure.
In practice
Every transaction gets a hash, a unique identifier you can paste into a block explorer to see exactly what happened.
Where to go next
ConfirmationHow many blocks have been built on top of the one containing your transaction.GasThe fee you pay to have the network process your transaction.MempoolThe waiting room where broadcast transactions sit before being included in a block.Block explorerA website for reading everything on a blockchain.
More foundations terms
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