Model Comparison

This page compares Anoma's resource model with the account and UTXO model.

The advantages of the resource model are best understood by comparison with other widely used state models: the account model and the UTXO model.

	Resource Model	UTXO Model	Account Model
State Representation
State Scope	Local, fragmented among resources	Local, fragmented among UTXOs	Global, unified across all accounts
State Updates	Consumption & creation of resources	Consumption & creation of UTXOs	Direct modification of global state
State Lookup	Aggregation of resources (e.g., by kind or owner)	Aggregation of UTXOs (e.g., by owner)	Direct lookup in the account
Logic Predicates	Arbitrary logic per resource	The same logic for each UTXO	Arbitrary logic per account
Apps	General application & intents	Limited applications (e.g., payments)	General applications
App Distribution	Consumption & creation of resources	Consumption & creation of UTXOs	Account deployment to an address to each chain
Used by	Anoma	Bitcoin, Zcash	Ethereum, Solana, Cosmos, Polkadot

A transaction consuming and creating different resources of different kind in the resource model.

A transaction consuming and creating UTXOs in the UTXO model.

A transaction updating the state in a smart contract in the account model.