---
name: mint-arbinu
description: Use when an agentic wallet wants to mint $ARBINU on Arbitrum — the first shiba inu minted by agentic wallet on arbitrum chain. Pass the credential check, choose the free lane or the flat $1 genesis, sign the mint; after the pool opens, mine on Lane A or Lane B. The contract releases shares only against an agent voucher.
homepage: https://arbinuagent.meme
x: https://x.com/arbinuagent
chain: Arbitrum One (chainId 42161)
document: DS-ARBINU-001 rev B
---

# Minting $ARBINU

ARBINU is a fixed-supply ERC-20 on Arbitrum One. The contract releases a share only after reading a
signed credential from an agentic wallet. Total supply is **1,000,000,000**; the mint contract is the
sole issuer. No transfer tax. The liquidity position is welded: no function returns it. Verify the
contract on Arbiscan before you sign — the address (tag no.) is published at launch.

## Two phases
- **Phase I — Genesis** (this procedure): a flat **$1.00** per share, **20,000** paid shares plus **1,000** free.
  The 20,000th paid share auto-opens the Uniswap V4 pool and closes genesis permanently.
- **Phase II — Emission** (after the pool opens): agents **mine** 110,000 shares across **11 epochs** of 10,000;
  the base reward per share **halves each epoch** (E1 20,000 ARBINU → … → ~19.5 at E11) and stops at share #110,000.

## Prerequisite — the credential check
Control a Binance agentic wallet able to present an **Agent-ID**
(https://web3.binance.com/en/dev-docs/products/agentic-wallet/install). An off-chain signer verifies the
agent and issues an **EIP-712 voucher** attesting `{minter, agentId, free?, shares, cap, nonce, deadline}`.
On-chain the contract verifies the signer (`gateSigner`), ties the voucher to `msg.sender`, and enforces
the per-wallet cap of **10** independent of the signed `shares`. A call without a valid voucher reverts
before any state changes.

## Phase I — two lanes

### Free lane (admitted first)
- **One share per Agent-ID, gas only.** Shared allotment of **1,000** free shares, sequential until exhausted.
- You receive **4,000 ARBINU**. A free share adds nothing to the pool and does not advance the 20,000 counter.

### Genesis lane (flat $1)
- **$1.00 per share, every share** — no tiers, no ramp. USD-denominated, **settled in ETH** at the Chainlink
  ETH/USD reading (Arbitrum feed, stale-feed and sequencer checks on).
- Per paid share: **4,000 ARBINU** to you + **3,300 ARBINU** into the welded pool.
- 20,000 shares. Raise $20,000 → **80%** ($16,000 in WETH) seeds the pool against **66,000,000 ARBINU**, **20%** ($4,000) to the treasury.
- Opening mark ≈ **97%** of genesis cost: buyers open about 3% under what they paid, by design.

## Per-wallet cap and referrals
- **Cap = 10 shares per wallet**, free and paid together. A wallet opens with one slot.
- **Referrals:** each agent you refer that completes a first mint adds **one slot**, up to 10. The slot is written on the
  referred agent's first mint; a referral that never mints is not credited. See https://arbinuagent.meme/invite/.

## Build the mint transaction
1. Request a voucher from the signer for the `free` lane or a paid `shares` count.
2. Call the mint contract (`mint` for genesis, `mintFree` for the free lane) with the voucher and signature,
   sending $1 per share in ETH on the paid lane or gas alone on the free lane.
3. The contract verifies the signer, spends the nonce against replay, enforces the cap, and releases 4,000 ARBINU per share.

## Phase II — mining (after the pool opens)
- **Lane A · free halving-mine:** the epoch's base reward per share. A **0.0004 ETH** deposit is refunded 100% after 24 h
  (anti-spam; net cost = gas). Daily quota **5, 5, 4, 3**, then 1 per day, **+1 per referral**. Genesis holders get epoch-1 priority.
- **Lane B · liquidity lane:** **0.001 ETH** per share, spent — half buys ARBINU from the live pool, the other half plus the
  bought tokens are added to the welded position. Reward = base + reserve bonus × a multiplier up to **5×**, vested over **14 days**. Quota 5 per day.
- **Network throttle:** at most **2,000** shares mined per day across the network.
- **Supply split** of the fixed 1B: genesis 15% · Lane A base 40% · Lane B reserve 45% · foundation 0. Unused reserve is never minted.
- The mining calls require the same agent voucher; a call without it reverts.

## Pool, fee, sell brake
- The 20,000th paid share opens the pool on **Uniswap V4** and welds the position. No operator action; the counter triggers it.
- **No transfer tax.** The **1%** trade fee is taken on the WETH side and routed to the treasury as WETH; the protocol never sells ARBINU to collect it.
- **Sell brake:** sells are taxed **30%** for the first **120 seconds** after the pool opens; buys unaffected. It runs from the
  real pool-open timestamp and expires on its own. Selling inside the window costs 30%.

## Tolerances
- Supply ≤ 1B on every mint; sole issuer. The LP position is welded; no admin mint or withdraw; foundation allocation 0.
- **3-day refund:** if the pool never opens, paid ETH is returned in full after three days. See https://arbinuagent.meme/refund/.
- Not financial advice. Read the contract on Arbiscan before an agent signs. Official X: @arbinuagent.