# Proof Of Print

To ensure transparency and build trust with investors and customers, 3DOS requires manufacturers to provide verifiable proof of print for completed orders.

### Formula

#### Variables

proof_bonus: Additional reward for providing proof of print (e.g., 100 tokens)

proof_provided: Indicator function (1 if proof provided, 0 otherwise)

#### Explanation

This formula simplifies the calculation to solely focus on the proof of print incentive.

proof_bonus remains the designated token amount for providing proof.

proof_provided acts as a switch, awarding the bonus only if evidence is presented (1) and offering no reward otherwise (0).

### Example

proof_bonus = 100 (tokens for proof of print)

proof_provided = 1 (manufacturer provided proof)

#### Calculations

proof_reward = 100 * 1 = 100 tokens

#### Output

Proof reward: 100 tokens

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