Official explanation · Testnet & Mainnet model · No investment advice

How GreenPi works

Pi pays for real goods. NAT powers the marketplace engine. Seller pool is NAT for ops — not the product price.

Locked economy (summary)

1. Two layers (everyone must know this)

PiNAT
RoleValue · product price · escrow · payout to farmerMarketplace motor (list, buy ops, dispute, messages…)
NetworkPi NetworkStellar (testnet now · mainnet later)
WalletPi wallet / Pi BrowserSeparate Stellar wallet + trustline to GreenPi NAT

A Pi address is not a NAT address. Producers who receive airdrop need a Stellar account.

2. Buy flow (simple)

  1. Buyer pays exact product price in Pi → GreenPi escrow (not a second +0.01 line on the cart for network gas in Pi).
  2. After confirm (or rules), Pi is prepared for producer batch payout.
  3. NAT ops fee (e.g. 0.5 NAT) is separate — from seller pool under the stand model, not subtracted from the kg price in Pi.

3. Seller pool — what it does

4. How NAT is received (who makes the wallet?)

  1. Producer pays stand in Pi and activates.
  2. Producer opens a Stellar wallet (they create or already own it — GreenPi does not hold their secret key).
  3. Producer adds trustline to GreenPi NAT (issuer).
  4. Producer links public address G… in GreenPi (My Stand / NAT page).
  5. If eligible, distribution sends airdrop to that address (testnet: may be log/credit first; mainnet: on-chain under same rules).

5. Can airdrop NAT be freely sent away — or only used by GreenPi?

Honest answer: on a normal Stellar balance, tokens in your wallet can usually be sent by you. If GreenPi needs “only for marketplace ops,” we use a restricted utility model:

ModeWhat it means
A · Open wallet (default Stellar) NAT arrives on your G… You can send it elsewhere. GreenPi cannot “silently pull” without your signature unless you signed an allowance-style flow.
B · Utility / seller-pool ledger (recommended for airdrop) Airdrop is credited primarily as seller-pool balance inside GreenPi (app ledger). GreenPi debits the pool when ops fees apply (buy, list, dispute…). Optional withdraw to Stellar only under published rules — or locked until mainnet policy.
C · Issuer controls (advanced) Clawback / auth flags on the asset are possible on Stellar but are heavy-handed; if used, they will be published. Not silent seizure of unrelated funds.

GreenPi project choice for airdrop seller pool: Mode B — airdrop NAT is for marketplace ops. GreenPi records the pool and consumes fee amounts when the market needs them. It is not marketed as free cash to dump. Freely transferable on-chain withdraw, if enabled at all, will be a separate, explicit rule — default for First-100 airdrop is pool utility first.

GreenPi is not an owner of your Pi wallet. We do not ask for seed phrases. Any debit of seller-pool credit is according to published fee rules when you use the market.

6. Top-up when pool is empty

Use Top up pool: pay Pi → GreenPi adds NAT credit to your seller pool (Mode B). Locked utility rate: 1 Pi = 2 NAT credit.
Ops fee 0.5 NAT ≈ 0.25 Pi equivalent — taken from seller pool, not added on top of the buyer’s product price in Pi.
For comparison, a Pi network fee is often ~0.01 Pi; our motor fee is higher because it funds marketplace ops, but the buyer still pays the agreed Pi price for goods only.
This rate is a utility peg for the app, not a promise of exchange-market price. Stellar wallet still optional.

7. Circulation (summary diagram)

Pi:  Buyer → GreenPi escrow → (confirm) → Producer batch payout

NAT: Treasury/distribution → Seller pool credit (airdrop waves / merit)
     → GreenPi debits pool on ops (e.g. 0.5 NAT / cart)
     → Fee treasury / burn / rewards per token rules

Testnet = practice + logs. Mainnet = same logic, real settlement under gates.

8. What is forbidden

Airdrop numbers · Rent stand · FAQ · Compliance