Merging Miner NFTsLink to this section

TL;DRLink to this section

You can combine two eligible same-level Miners you own into one higher-level Miner.
You choose the survivor, which keeps its ID and image; the other NFT is permanently burned.
Both Miners' unclaimed rewards stay with the survivor. Its extra power activates later, and you pay a network fee for the transaction.

What do you keep, and what do you lose?Link to this section

A merge upgrades one of your Miners by one level and permanently destroys the other. The NFT you keep is the survivor; the one burned is the donor. You choose which is which before submitting the transaction, and the donor can't be restored afterward.

The survivor keeps its token ID and image. It also receives both Miners' unclaimed rewards, including tiny unpaid fractions. The donor doesn't contribute visual traits, and the merge doesn't create a new token ID or combine the images.

After the merge	Result
Survivor	Same ID and image, one level higher
Donor	Permanently burned; no longer transferable or separately claimable
Active mining power	Both inputs' combined old power continues earning
Extra mining power	Starts earning after its scheduled activation is processed
Unclaimed rewards	Combined on the survivor, not paid to your wallet

Before you mergeLink to this section

You must be the current owner of both NFTs. Marketplace or operator approval isn't enough, and a contract wallet that owns the NFTs must make the call itself. Both Miners must also:

Be different, existing NFTs at the same level, below the maximum level.
Have no mining power still waiting to activate.
Have completed their own merge cooldowns in completed Squeek blocks.

Time passing or Ethereum confirmations won't satisfy a merge cooldown. Reaching an activation round also isn't enough until a checkpoint has applied the change. Review Levels and mining power and confirm which image and token ID you want to keep before signing.

The owner transaction integration guide covers the exact contract checks.

Will a merge increase your rewards?Link to this section

The survivor's new-level power is greater than the two inputs' power combined, but the increase doesn't start earning immediately. Until it activates, the survivor keeps their combined old power. Its future share still depends on the total active power of all eligible Miners and on the rewards available.

A merge doesn't create SQK or pay anything to your wallet. Already-funded rewards remain available through a separate claim, including while the extra power is pending.

When can the survivor merge again?Link to this section

Below the maximum level, the merge starts a new cooldown based on the survivor's new level and the current completed Squeek-block count. The extra power must also activate before another merge. At the maximum level, the Miner can't merge again.

Transferring the survivor doesn't reset either requirement. One settlement can complete several Squeek blocks, so there may be no opportunity to act between each one.

What if the transaction fails?Link to this section

If an eligibility check, required contract read, or donor burn fails, the whole merge is undone, including changes to unclaimed rewards. A pause in work settlement alone doesn't block merging, but the required contracts still need to work. A failed transaction can still cost a network fee.

A submitted transaction isn't a completed merge. Wait for the transaction to succeed and be confirmed before treating the survivor as upgraded or the donor as gone. The developer verification procedure gives the exact receipt and state checks.

Records verified work and tracks settled rounds and Squeek blocks on Ethereum. Calculates rewards from settled work, holds funded SQK, and pays eligible NFT owners. The Miner ERC-721 contract. Tracks NFT ownership and coordinates minting and merges with Mining. Applies Core or Mining upgrades authorized by its governing Timelock. Generates Miner NFT artwork from fixed onchain visual data. Queues governance operations and enforces a delay before they can be executed. The SQK ERC-20 contract. Enforces the lifetime supply cap; only Mining can mint SQK. Checks that visual data conforms to the required DotGrid format. When new mining power starts earning. Minting and merging schedule it for a later round, and a checkpoint must process the change. A reward update that processes settled work and scheduled mining-power changes. It can make rewards available but doesn't pay them to an owner's wallet. The Miner NFT permanently burned in a merge. Its unclaimed rewards move to the survivor, but its image is not combined or kept. SQK issued under the mining reward rules. You can direct a share of your Miner's rewards to fund SqueekFi projects. The physical mining device that records accepted wheel-magnet passages as work. It is separate from the virtual Miner NFTs. Squeekchain's record of accepted wheel-magnet passages. It doesn't prove animal identity and isn't how Ethereum reaches consensus. Combining two eligible same-level Miners you own into one higher-level Miner. One NFT is permanently burned; the survivor keeps both Miners' unclaimed rewards. The completed Squeek blocks a Miner must wait through before merging. It measures completed work, not elapsed time or Ethereum blocks; transfers don't reset it. The power used to calculate a Miner's share of rewards when eligible and active. A larger share of total power can mean a larger share of rewards. A ten-minute period used to group measured work. The device saves a completed round's work total when measurement remained uninterrupted. The transferable token used for mining rewards. It has a lifetime supply cap and is separate from the Miner NFT and the device's work count. A completed amount of settled work. Enough recorded work completes one Squeek block; it is not an Ethereum block. Squeek Miner NFTs earn SQK linked to recorded wheel activity. Owners can direct a share of those rewards to fund SqueekFi projects. Squeekchain's ecosystem for hamster-powered onchain finance. Miner owners can choose to fund projects with a share of their SQK rewards. The Miner NFT you keep in a merge. It gains a level, keeps its ID and image, and receives both Miners' unclaimed rewards. A Miner's recorded reward balance that hasn't been paid to a wallet. It stays with the NFT when ownership changes. One wheel-magnet passage that met the device's counting rules and was saved. It records work, not an amount of SQK.