Memo Attribution
Memo attribution is the process of using a blockchain transaction memo and its surrounding evidence to associate an incoming payment with a…
Glossary terms starting with M
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Memo-Based Payment Matching
Memo-Based Payment Matching links an incoming blockchain transaction to an invoice, customer, or internal ledger record by comparing its memo field with…
Mempool
A mempool is a node's temporary collection of valid unconfirmed transactions awaiting selection, propagation, replacement, eviction, or expiration. There is usually no…
Mempool Admission
Mempool admission is a node's decision to accept an unconfirmed transaction after consensus, fee, conflict, resource, and local-policy checks. Admission policy can…
Mempool Auction
A mempool auction is competitive transaction ordering in which users or searchers bid fees, tips, or payments for scarce block inclusion priority.…
Mempool Detection
Mempool detection observes unconfirmed transactions in node or network mempools to identify broadcasts, conflicts, replacements, congestion, or targeted activity. Coverage is inherently…
Mempool Eviction
Mempool eviction removes previously accepted unconfirmed transactions when capacity, fee, conflict, expiry, dependency, or chain-state conditions no longer permit retention. Eviction is…
Mempool Minimum Fee
The mempool minimum fee is the lowest effective fee rate a node currently accepts or retains for unconfirmed transactions under local policy.…
Mempool Ordering
Mempool ordering is the policy or market process that ranks unconfirmed transactions for relay, block construction, simulation, or execution priority. The displayed…
Mempool Policy
Mempool policy is a node's configurable set of non-consensus rules for accepting, relaying, replacing, prioritizing, and evicting unconfirmed transactions. Policy is not…
Mempool Risk
Mempool risk is exposure created while blockchain transactions remain publicly observable, reorderable, replaceable, delayed, censored, or unconfirmed before inclusion. For Mempool Risk,…
Mempool Synchronization
Mempool synchronization is the peer-to-peer exchange of unconfirmed transaction information so nodes can converge on useful block candidates and relay coverage. Perfect…
Merchant
A merchant is a person or organization that offers goods or services and accepts payment from customers under a commercial and payment…
Merchant Account
A merchant account is an account or acquiring arrangement that enables a business to accept and settle payment transactions under defined provider…
Merchant Adoption
Merchant adoption is the extent to which businesses actively accept and repeatedly use a payment method, platform, or financial technology. Merchant Adoption…
Merchant API
A merchant API lets a business integrate payment creation, status retrieval, transaction history, callbacks, and related merchant operations into its own systems.…
Merchant API Integration
A merchant API integration connects a business application to payment-provider endpoints so orders, payment requests, statuses, and records move reliably between systems.…
Merchant API Key
A merchant API key is a secret credential that identifies and authenticates a merchant application when it calls protected payment-provider endpoints. Merchant…
Merchant Approval Rate
Merchant approval rate is the percentage of eligible payment authorization attempts for a merchant that receive an approved response under a defined…
Merchant Attribution
Merchant attribution is the process of determining which merchant, sub-merchant, store, or business account should receive credit for a crypto payment within…
Merchant Audit
A merchant audit evaluates a merchant's records, controls, transactions, products, compliance, security, and fulfillment against defined criteria and scope. Merchant Audit provides…
Merchant Automation
Merchant automation uses software rules and integrations to operate payment, order, customer, fulfillment, accounting, and support workflows with reduced manual handling. Merchant…
Merchant Callback
A merchant callback is a server-to-server message sent by a payment provider to a merchant endpoint when a transaction or payment state…
Merchant Collusion
Merchant collusion is coordinated misconduct in which a merchant or merchant insider cooperates with customers, fraudsters, affiliates, employees, or other merchants to…