# DAT Specification

### Core Structure

<table data-header-hidden><thead><tr><th width="239.015625"></th><th></th></tr></thead><tbody><tr><td><strong>Field</strong></td><td><strong>Description</strong></td></tr><tr><td>ID</td><td>Each DAT is a unique token representing a specific AI asset</td></tr><tr><td>CLASS</td><td>Category of asset (e.g., POV, Model, Inference)</td></tr><tr><td>VALUE</td><td>Represents usage quota or revenue share</td></tr><tr><td>PROOF</td><td>Attached proof for authenticity (e.g., ZK, TEE, OP)</td></tr></tbody></table>

### Sample Metadata Schema

`{`

&#x20; `"name": "Timi + Fine-Tuned Llama Model v2",`

&#x20; `"class": "0x03",`

&#x20; `"value": 2500,`

&#x20; `"proof": {`

&#x20;   `"type": "ZK-SNARK",`

&#x20;   `"hash": "0xabc123...",`

&#x20;   `"verifiedBy": "0xVerifierContract"`

&#x20; `},`

&#x20; `"usagePolicy": {`

&#x20;   `"maxCalls": 1000,`

&#x20;   `"expiresAt": "2026-12-31"`

&#x20; `},`

&#x20; `"revenueShare": {`

&#x20;   `"totalShares": 10000,`

&#x20;   `"holderShare": 2500`

&#x20; `},`

&#x20; `"rights": {`

&#x20;   `"license": "commercial_use_allowed",`

&#x20;   `"canTransfer": true`

&#x20; `}`

`}`


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