Transaction Data

Overview

The transaction payload describes the action being requested. A native transfer may contain a destination and value. A smart-contract transaction can include encoded function selectors and parameters. UTXO transactions list consumed inputs and newly created outputs. Some networks declare every account the transaction may read or modify.

Authorization data proves who approved the request. Signatures, public keys, multisignature instructions, or delegated permissions can appear inside or alongside the transaction. Fee and sequence fields control priority and replay protection.

Execution produces additional data. A receipt may show success, resource usage, and emitted events. Traces can reveal internal calls and intermediate state changes. These results should not be confused with the original request.

Transaction data can be public and permanent, creating privacy concerns. Users should avoid placing personal information, secrets, or large files directly on-chain. Even encrypted data may remain available indefinitely and could become readable later if keys leak or cryptography weakens.

Applications should preserve raw canonical identifiers and decode fields through trusted, versioned libraries. Token symbols and explorer labels are derived metadata. Payment systems need to connect technical transaction data with invoice and customer records without assuming that the blockchain itself explains the commercial context.

Data schemas should retain raw integer values, exact byte fields, and decoding version. Converting everything immediately into formatted strings can lose precision or make later reprocessing impossible. Sensitive off-chain metadata should be linked through controlled internal identifiers rather than embedded in public calldata. When exports or APIs expose transaction data, access controls should separate public protocol fields from private customer and business context.