Privacy policy

Data controller

Nexow, Inc., publisher of Mini Miner, 2810 N Church St STE 89080, Wilmington, DE 19802, USA, admin@nexow.ai (subject “Privacy Request”).

Data processed

• Account: email address, Bitcoin payout address, free-trial counters (demos in the current hour, boosts left), Premium status and payment reference, blocks found and their status on the chain, history of automatic sessions (duration, hashes, average hashrate, best hash, number of hashes by count of leading zeros), IP addresses of sensitive actions (audit log), Stripe customer identifier.
• Mining: the payout address is sent to the relay and to the pool as a mining identifier.
• Payment: processed by Stripe; Mini Miner never sees card details.

Purposes and legal bases

Performance of the contract (account, sessions, payment), fraud prevention (rate limiting, one address per account), legal obligations (accounting).

Processors

Supabase (authentication and database, hosted in Frankfurt, European Union), Stripe (payment), Resend (email), Fly.io (mining relay, Frankfurt), Vercel (site hosting), mempool.space (network statistics, no personal data), the mining pool solo.ckpool.org (receives the payout address).

Retention

Account, payout address, trials and session history: as long as the account exists, deleted with it (deletion from “My profile”). Blocks found: kept, detached from the account, as they are public chain data. Invoices and payment references: 10 years (accounting obligations). Per-minute share aggregates: 12 months. Audit log: 12 months.

Your rights

Access, rectification, erasure, portability, objection: write to admin@nexow.ai, subject “Privacy Request”. Supervisory authority: in Switzerland, the Federal Data Protection and Information Commissioner (FDPIC); in the European Union, the data protection authority of your country of residence.

Cookies

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