Sending Address

Overview

Meaning and boundaries

Sending Address is an address or account identified as the source of a blockchain transfer. A sending address is a visible source association for a blockchain transfer, but its interpretation depends on the ledger. Account-based chains commonly expose a sending account; UTXO transactions can spend multiple inputs, and contract-mediated transfers can involve more than one apparent sender.

How it works in practice

In account-based networks it may directly identify the signing account, while in UTXO systems a transaction can spend outputs associated with multiple addresses. Operationally, systems record the source wallet, network, inputs, ownership, authorization, fees, and relationship to change outputs or contract execution. The principal risk is that assuming one visible address represents the only sender or beneficial owner can produce incorrect attribution and compliance analysis.

Checks and failure points

Never infer the payer’s identity from the sender address alone. Exchange and custodial withdrawals often originate from shared infrastructure, and a malicious party can make unrelated transfers to a public destination.

Operational evidence and decisions

Transaction attribution should use the full network record. Token transfers through contracts can show different initiators and event-level sources, while exchange withdrawals may batch many customers. Where a payer must prove control of a wallet, an explicit cryptographic ownership proof is a separate action from observing an outgoing payment. The asset contract and relevant transaction event matter when interpreting token sources.

How it differs from related terms

Sending address is an on-chain source indicator; account identity and invoice ownership are separate business facts. Related entries: Sender Address; Address-Based Payment.