Mempool
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Accepted Evidence Vs Mempool AcceptedWorking Model BridgesWhy node mempool admission and consensus accepted evidence are different.Transactions, UTXO, Fees, And MempoolTransactionsTurn ownership, UTXOs, transaction format, mass/fees, mempool admission, and accepted evidence into one source-backed learning path.UTXO Model And OwnershipTransactionsKaspa ownership is best taught as spendable outputs rather than account balances.Transaction StructureTransactionsA transaction is a structured object interpreted by validation, hashing, signing, mempool, RPC, wallet, and block-template code.Inputs, Outputs, And OutpointsTransactionsInputs, outputs, and outpoints are the vocabulary of UTXO spending.Transaction ID, Full Hash, Payload Digest, And Rest DigestTransactionsTxid and full transaction hash must be explained separately because they answer different identity and commitment questions.Sighash And Signing CommitmentsTransactionsSighash defines what a signature commits to and is one of the highest-risk wallet/developer surfaces.Mass, Fees, And Storage MassTransactionsMass is resource accounting, not just a fee-size synonym.Transaction Validation LayersTransactionsTransaction validation is layered, and each layer rejects different classes of mistakes.Mempool Policy, Orphans, RBF, And RelayTransactionsMempool admission is local node policy and not final chain acceptance.Block Templates And Transaction SelectionTransactionsBlock templates turn node state and mempool candidates into miner work.Accepted Transaction EvidenceTransactionsAccepted evidence is the boundary between transaction intent and consensus-visible consequence.RPC, UTXO Index, And Explorer BoundariesTransactionsRPC and indexer shapes expose transaction data to tools, but they do not replace consensus source review.Source Path For Transaction ContributorsTransactionsTransaction contributors need a guided source order so a change does not silently break hashing, signing, mempool policy, RPC, or accepted evidence.Mempool And Block TemplatesOperationsThis page bridges operations and protocol source: a node may admit a transaction, but miners still need a valid block template and consensus still decides acceptance.