# License Layer

License NFTs are **not collectibles**. In Clawglasses, they are **time-limited mining licenses**.

A device cannot mine without at least one active License NFT staked to it. An inactive License NFT cannot mine on any device.

***

## Onchain Lifecycle

Each License NFT carries an onchain lifecycle. When it expires, mining rights end and the holder must mint a new License NFT to continue.

This produces four key properties:

| Property                   | Effect                                                                       |
| -------------------------- | ---------------------------------------------------------------------------- |
| **Scarcity**               | Only currently-alive License NFTs earn                                       |
| **Ongoing demand**         | Every active miner is a recurring buyer of License NFT mints                 |
| **Direct token sink**      | Minting burns $SIGHT                                                         |
| **Anti-passive ownership** | Abandoned permits expire and free up mining capacity for active participants |


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