Testnet demo only. Carbon Coin (CRBN) has no monetary value and is not affiliated with, endorsed by, or produced by the United Nations. It exists solely to demonstrate XRPL's native MPToken (XLS-89) token design space.

Carbon Coin

Aligning Long-Term Wealth with Planetary Decarbonization — a fictional demo by the "UN Ministry For The Future"

This is a technical demonstration of the XRP Ledger's native MPToken standard (XLS-89) running on the publicXRPL Testnet. Nothing here has monetary value.

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Live status

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Issuer: —
Governance: —

What is this?

Carbon Coin (CRBN) is a native XRPL MPToken (XLS-89) — a first-class, account-scoped fungible token type distinct from classic trust-line Issued Currencies. It is transferable, lockable (freezable), and clawback-able, with no supply cap and whole-unit balances.

Minting new supply and moving funds out of governance both require a 2-of-3 multisig quorum: no single key can create new tokens or redirect governance's balance alone. Multisig members sign with their own passkey-derived wallet via GhostSig — no seed phrase is ever typed into this page, and nothing here can move funds on its own.

Ceremonies (a mint or a disbursement) are proposed and co-signed entirely in the browser: whoever proposes signs first, then relays a link to the next signer (see Sign a Proposal). Once enough signatures are collected, GhostSig submits the transaction itself.

For background on how Carbon Coin might actually work and the challenges of such a concept, seeCarbon Coin tokenomic design conversation.