# Lifecycle

Each License NFT is minted with an **onchain countdown timer**.

## How It Works

| State                      | Mining                             | Tradeable      | Revivable                |
| -------------------------- | ---------------------------------- | -------------- | ------------------------ |
| **Active** (timer running) | Can be staked to a device and earn | Yes            | N/A                      |
| **Expired** (timer ended)  | Cannot be staked or earn           | No (as active) | No — permanently retired |

When the timer expires, the License NFT is **permanently retired** — it cannot be re-staked, traded as active, or revived. Holders who want to keep mining must mint new License NFTs.

## Why Expiration Matters

* **Recurring demand** — mining requires ongoing License NFT purchases, creating sustained $SIGHT burn
* **Active participation** — the network rewards miners who show up, not speculators who sit
* **Capacity recycling** — expired License NFTs free up slots for new participants
* **Price stability** — the dynamic mint pricing responds to alive supply, not historical mints

{% hint style="info" %}
The default lifecycle duration is a governable parameter set by [CIP](file:///0129295/governance/cips.md).
{% endhint %}


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