Information
Frequently asked questions
Six categories, over 30 questions. The first three questions in each category are open by default. Search runs over all questions and answers.
Doichain
A Bitcoin-related PoW blockchain in production since 2018, with over 90% shared codebase, identical tokenomics (21 million DOI, halving, 10-minute blocks) and merged mining under Bitcoin's hashrate. Details on /en/basics.
On top of the transaction layer, a namespace layer (up to 512 bytes per operation) and its role as a real-world lab for post-quantum migration.
Bitcoin miners secure a second blockchain at the same time, without extra computing power. The concept comes from Satoshi Nakamoto (2010); Doichain has used it in production since 2018.
wDOI
An ERC-20 token on Ethereum, backed 1:1 by native DOI. wDOI makes Doichain usable inside the Ethereum ecosystem — DEX, DeFi, smart contracts.
DOI is the native coin of Doichain. wDOI is its wrapped variant on Ethereum, backed 1:1 and mintable/redeemable via the DOI bridge.
A planned representation for the Solana ecosystem. Details will follow in a dedicated strategy document.
Reservation
No. The registration is a non-binding expression of interest. No payment or take-up obligation.
Until 31 May 2026. Remaining time and batch status are live on the home page and on /en/wdoi.
€0.15 per wDOI (wave 1). Maximum per participant: 10,000 wDOI (≈ €1,500.00). Prices for future batches will be decided and communicated separately.
Technology
Native DOI is held in multisig custody; an equivalent wDOI is minted on Ethereum. On redemption, wDOI is burned and DOI is released.
A group of independent signers. The threshold and composition will be disclosed when the bridge goes live.
Audit reports will be published before the bridge goes live. Until then the bridge remains in pilot status.
Legal & Tax
No. wDOI is a utility token representing DOI on Ethereum, not a security or investment product within the meaning of relevant capital-markets regulation.
No. In most jurisdictions, crypto gains are self-declared. We do not issue tax certificates.
A KYC check may be required depending on the size of the reservation and the relevant jurisdiction. Details will be communicated before any payout.
Privacy
Solely to process the expression of interest and — if requested — for information emails. Details in the privacy policy.
No, except for technical processors (e.g. email delivery) to the extent required.
As long as the expression of interest is active, then within statutory retention obligations.