Terms & Conditions

These Terms apply to all contracts for the hosting and operation of Bitcoin mining hardware between Cryptron UG (haftungsbeschränkt) (“LumiHash”) and its customers (“you”). Deviating terms of the customer do not apply unless we expressly agree to them in text form.

The service is aimed at consumers and businesses in Germany. The version of these Terms in force at the time the contract is concluded applies.

LumiHash provides a technical hosting and operation service: we house, power, cool, connect and maintain open-source Bitcoin mining hardware (for example Bitaxe or NerdAxe devices) that is assigned to you, and we point its computing power (hashrate) at the Bitcoin network on your behalf. Your monthly fee is the consideration for this service and the associated infrastructure. It is not a stake, wager or entry fee, and you are not purchasing a chance at a prize.

Any block reward that the hardware assigned to you produces is the direct economic output of the proof-of-work computation performed by that hardware and is paid by the Bitcoin protocol itself — it is not a prize that LumiHash draws, awards or pays out from a pool of stakes. The service is therefore neither a lottery nor any other public game of chance within the meaning of § 3 of the German State Treaty on Gambling (Glücksspielstaatsvertrag), and it is not organised, marketed or intended as such.

The service is likewise not a capital investment, security, asset investment (Vermögensanlage) or other financial instrument. No return, yield or profit is promised, owed or guaranteed. LumiHash sells computing infrastructure and its operation — nothing more.

The hashrate stated for a tier is a target value based on the assigned hardware. The actual delivered hashrate may vary — as a rule by up to 20% — depending on the specific device, its firmware, chip binning, operating temperature and network conditions. Such variation within this range is not a defect and gives rise to no price reduction or other claim.

Our presentation of tiers on the website is not a binding offer but an invitation to submit an enquiry. A contract is concluded only once we confirm your order in text form (e.g. by email).

If suitable hardware is in stock, we typically bring the device assigned to you online within a few days. If demand is high and stock is limited, sourcing the hardware can take approximately one to two weeks. We will inform you of the expected lead time.

The monthly hosting fee is the amount stated for the selected tier at the time of contract conclusion. Prices are shown in euros and include statutory VAT where applicable. The fee is due monthly in advance.

The hardware assigned to you remains the property of LumiHash for the duration of the hosting relationship. In addition, our mining pool retains a transparent fee of 5% of any block reward produced by your hardware; the remaining 95% is paid out directly to the Bitcoin wallet address you specify. The monthly hosting fee is owed independently of whether any block reward is produced.

Payments and recurring subscription billing are handled by our payment service provider Stripe Payments Europe, Ltd. You may pay monthly — subject to the three-month minimum term under Section 6 — or annually at a 20% discount; after the initial year an annual subscription continues on a monthly, cancellable basis. Stripe charges the selected plan to your chosen payment method at the start of each billing period. Your statutory rights of termination and withdrawal under Sections 6 and 7 remain unaffected.

LumiHash is non-custodial: block rewards flow from our mining pool directly to the wallet address you control. We never take custody of your Bitcoin and cannot access, freeze or reverse payouts. You are solely responsible for providing a correct, functioning wallet address and for the security of your keys. We are not liable for rewards lost due to an incorrect or inaccessible address provided by you.

The minimum initial term is three (3) months, beginning when the hardware assigned to you first goes online. After the minimum term, the contract continues for an indefinite period and may be terminated by either party with one (1) month's notice, in line with § 309 No. 9 of the German Civil Code (BGB).

Notice of termination must be given in text form (e.g. email). The right of both parties to terminate for good cause without notice remains unaffected.

If you are a consumer, you have the right to withdraw from this contract within fourteen (14) days without giving any reason. The withdrawal period is fourteen days from the day the contract is concluded. To exercise it, inform us (Cryptron UG (haftungsbeschränkt), Am Sonnenhang 9, 67697 Otterberg, Germany; hello@lumihash.com) of your decision by a clear statement (e.g. a letter or email). Sending the notice before the period expires is sufficient to meet the deadline.

Beginning of performance: the hosting service begins at your express request, and by concluding the contract you expressly request that we begin performance before the end of the withdrawal period. Consequences of withdrawal: we will reimburse all payments received from you without undue delay and no later than fourteen days after we are informed. If you withdraw after performance has already begun, you owe us reasonable value compensation for the service already provided up to the point of withdrawal, calculated pro rata to the agreed fee. The right of withdrawal expires if the service is fully performed and its performance only began after your express consent together with your acknowledgement that you lose the right of withdrawal upon complete performance.

(If you wish to withdraw from the contract, please complete and return this form.)

To Cryptron UG (haftungsbeschränkt), Am Sonnenhang 9, 67697 Otterberg, Germany — hello@lumihash.com:

I/We (*) hereby give notice that I/We (*) withdraw from my/our (*) contract for the sale of the following goods (*)/for the provision of the following service (*):

— Ordered on (*)/received on (*): ______

— Name of consumer(s): ______

— Address of consumer(s): ______

— Signature of consumer(s) (only if this form is notified on paper): ______

— Date: ______

(*) Delete as appropriate.

We operate the hosting infrastructure with reasonable care and aim for high availability, but we do not warrant uninterrupted operation. Downtime may occur due to maintenance, hardware faults, network or pool outages, energy supply issues or events beyond our reasonable control (force majeure). Reasonable maintenance windows and outages do not constitute a defect.

Solo Bitcoin mining is highly speculative. Across the entire global network a block is found roughly every ten minutes, so the statistical probability that the hardware assigned to you finds a block in any given period is very low — it is entirely possible that it never does. Block rewards are not guaranteed and must not be expected.

Network difficulty, the Bitcoin exchange rate, hardware availability and energy costs can change at any time and are outside our control. Your monthly hosting fee is owed regardless of whether any reward is produced. Nothing on our website or in these Terms is financial, tax or investment advice.

We are liable without limitation for intent and gross negligence, for injury to life, body or health, and under the German Product Liability Act. For the slightly negligent breach of an essential contractual obligation (an obligation whose fulfilment makes the proper performance of the contract possible in the first place and on which you may regularly rely), our liability is limited to the foreseeable, contract-typical damage. Any further liability is excluded.

We are not liable for fluctuations in the value of Bitcoin, for the absence of block rewards, or for losses resulting from an incorrect wallet address or compromised keys provided or controlled by you.

You are responsible for declaring and paying any taxes arising from block rewards or other proceeds credited to your wallet under the law applicable to you. We do not provide tax advice.

We may amend these Terms with effect for the future where necessary, for example due to changes in the law or our service. We will notify you of material changes in text form at least six weeks before they take effect. If you do not object within that period, the amended Terms are deemed accepted; we will point this out to you separately. You may terminate the contract before the changes take effect.

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. For consumers, mandatory consumer-protection provisions of their country of habitual residence remain unaffected. If you are a merchant, a legal entity under public law or a special fund under public law, the place of jurisdiction is our registered office.

Should any provision of these Terms be or become invalid, the validity of the remaining provisions is unaffected. This English text is a convenience translation; in case of discrepancy the German version prevails.