8.1 UTXO-Based Model

PTERI uses Litecoin’s UTXO (Unspent Transaction Output) model as the foundation for payments.

In a UTXO system:

• Value is not stored as balances
• Each transaction consumes specific outputs
• Each output can be independently verified

This provides strong guarantees:

• Clear provenance of funds
• Deterministic verification
• No hidden state or account ambiguity
• Easier auditing and reconciliation

A UTXO either exists or it does not.
There is no intermediate or uncertain state.

This makes the model ideal for:

• Payments
• Automation
• Machine verification
• Infrastructure-grade systems

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