DigiDollar
DigiDollar is a USD-denominated stablecoin built directly into DigiByte Core, not a token issued on a smart-contract layer or by a company holding reserves in a bank account. It activated on the DigiByte mainnet at block 23,869,440, alongside the ten lock tiers, the oracle quorum and the mint/redeem rules that govern it, all as part of the base protocol every full node already runs. There is no separate chain to trust and no issuer to go bankrupt, because the collateral that backs every DigiDollar lives in the same UTXO set as ordinary DGB, secured by the same proof-of-work.
Every DigiDollar is over-collateralized with DGB that the minter locks in an on-chain vault for a chosen term, and every node recomputes the collateral behind every DigiDollar on every block, roughly every 15 seconds. That recomputation, not an auditor’s attestation, is the thing that makes DigiDollar verifiable: anyone running a node can check the collateral position of any DigiDollar themselves, at any moment, without asking anyone’s permission. The USD price used to value that collateral comes from a 7-of-35 MuSig2 oracle quorum, a threshold of independent signers agreeing on a single aggregated price rather than one server anyone could quietly influence.
At mint time you choose one of ten lock tiers, from a one-hour tier zero up to ten years, and the tier you pick trades term length against how much collateral a dollar requires: lock DGB for longer and you need less of it per dollar minted, lock it for the shortest available term and the protocol demands far more collateral to compensate for the risk of an early move. Redemption unwinds a position all at once — there is no partial redeem — releasing the remaining locked DGB back once the corresponding DigiDollar is returned. The two integration guides linked from this page walk through reading DigiDollar state, and minting, sending and redeeming it, against your own DigiByte node, with the real RPC calls and the traps in each step.
Frequently asked questions
- What is DigiDollar?
- A USD stablecoin built into DigiByte Core itself, over-collateralized with time-locked DGB rather than issued by a company or backed by reserves held off-chain.
- What backs it?
- DGB locked on-chain in a vault the minter creates at mint time. The collateral is DigiByte’s own coin, not a bank deposit or a basket of other assets.
- Do I need to trust a company or an exchange?
- No. Collateral positions live in the same UTXO set every full node validates, every node recomputes the collateral behind every DigiDollar each block, and price comes from a 7-of-35 MuSig2 oracle quorum rather than a single server.
- What is a lock tier?
- One of ten collateral terms chosen at mint time, from a one-hour tier zero up to ten years. Longer locks require less collateral per dollar minted; shorter locks demand more.
- Can I build on it?
- Yes — the two integration guides linked from this page teach reading DigiDollar state, and minting, sending and redeeming it, against your own DigiByte node.
Learn DigiDollar
Build with DigiDollar
- Read DigiDollar state — Normalize cents, micro-USD and block-ages from the node’s DigiDollar RPCs, decode a DD address and its scripthash, and read positional OP_RETURN amounts off zero-value taproot outputs — with the freshness rule a stablecoin dashboard cannot skip.
- Mint, send and redeem DigiDollar — Check the preconditions, price a position with estimatecollateral, mint in cents, send without tripping the fee trap, and redeem all-or-nothing — the position lifecycle and every error the node returns on the way.