Mining with Bigcoin

Bigcoin is a virtual Bitcoin mining simulator on Abstract. Players buy facilities, purchase miners with $BIG tokens, and earn $BIG proportional to their share of global hashrate. Fixed supply of 21M $BIG with halving every 4.2M blocks.

ABI Format

The AGW CLI requires full JSON ABI objects, not human-readable strings. Every abi array element must be an object with type, name, inputs, outputs, and stateMutability fields.

Operating Rules

• Check pending rewards before claiming — no point paying gas for zero rewards.
• Check facility status before buying miners — miners require sufficient facility capacity and power.
• Preview every purchase and claim with --dry-run before execution.
• Miner purchases require $BIG token balance. Check with agw wallet tokens list.
• Initial facility purchase costs ETH (payable), not $BIG.
• Read references/game-contracts.md for the full contract interface, facility tiers, and mining mechanics.

Contracts

Contract	Mainnet Address
Bigcoin Game (proxy)	0x89eb96a0a157f935de38d548b79af511d424e33a
$BIG Token (ERC-20)	0xdf70075737e9f96b078ab4461eee3e055e061223

Current State

• Emission: halving every 4,200,000 blocks, started at 2.5 BIG/block
• Current emission: ~0.039 BIG/block (after multiple halvings)
• 75% of $BIG spent on upgrades/miners is burned
• Miners are auto-staked on purchase with 24-hour lockup

Task Map

Check pending rewards

agw contract write --json '{
  "address": "0x89eb96a0a157f935de38d548b79af511d424e33a",
  "abi": [{"type":"function","name":"pendingRewards","stateMutability":"view","inputs":[{"name":"player","type":"address"}],"outputs":[{"name":"","type":"uint256"}]}],
  "functionName": "pendingRewards",
  "args": ["<YOUR_ADDRESS>"]
}' --dry-run

Result is in 18-decimal raw units. Divide by 1e18 for human-readable $BIG.

Claim mining rewards

agw contract write --json '{
  "address": "0x89eb96a0a157f935de38d548b79af511d424e33a",
  "abi": [{"type":"function","name":"claimRewards","stateMutability":"nonpayable","inputs":[],"outputs":[{"name":"","type":"uint256"}]}],
  "functionName": "claimRewards",
  "args": []
}' --dry-run

Check facility status

agw contract write --json '{
  "address": "0x89eb96a0a157f935de38d548b79af511d424e33a",
  "abi": [{"type":"function","name":"ownerToFacility","stateMutability":"view","inputs":[{"name":"player","type":"address"}],"outputs":[{"name":"","type":"tuple","components":[{"name":"facilityIndex","type":"uint256"},{"name":"maxMiners","type":"uint256"},{"name":"totalPowerOutput","type":"uint256"},{"name":"cost","type":"uint256"},{"name":"x","type":"uint256"},{"name":"y","type":"uint256"}]}]}],
  "functionName": "ownerToFacility",
  "args": ["<YOUR_ADDRESS>"]
}' --dry-run

Check player's hashrate per block

agw contract write --json '{
  "address": "0x89eb96a0a157f935de38d548b79af511d424e33a",
  "abi": [{"type":"function","name":"playerBigcoinPerBlock","stateMutability":"view","inputs":[{"name":"player","type":"address"}],"outputs":[{"name":"","type":"uint256"}]}],
  "functionName": "playerBigcoinPerBlock",
  "args": ["<YOUR_ADDRESS>"]
}' --dry-run

Buy initial facility (costs ETH)

First facility requires a one-time ETH payment to prevent bots. Check the current price, then purchase:

agw contract write --json '{
  "address": "0x89eb96a0a157f935de38d548b79af511d424e33a",
  "abi": [{"type":"function","name":"purchaseInitialFacility","stateMutability":"payable","inputs":[{"name":"referrer","type":"address"}],"outputs":[]}],
  "functionName": "purchaseInitialFacility",
  "args": ["0x0000000000000000000000000000000000000000"],
  "value": "<FACILITY_PRICE_WEI>"
}' --dry-run

Pass zero address for no referrer, or a referrer address for 2.5% reward split.

Buy a miner (costs $BIG)

Requires $BIG approval to the game contract first, then purchase. Use agw tx calls to batch:

agw tx calls --json '{
  "calls": [
    {
      "to": "0xdf70075737e9f96b078ab4461eee3e055e061223",
      "data": "0x095ea7b300000000000000000000000089eb96a0a157f935de38d548b79af511d424e33a<AMOUNT_PADDED>",
      "value": "0"
    },
    {
      "to": "0x89eb96a0a157f935de38d548b79af511d424e33a",
      "data": "<ENCODED_buyMiner>",
      "value": "0"
    }
  ]
}' --dry-run

buyMiner(uint256 minerIndex, uint256 x, uint256 y) — minerIndex selects the miner type, x/y set the grid position.

Check current emission rate

agw contract write --json '{
  "address": "0x89eb96a0a157f935de38d548b79af511d424e33a",
  "abi": [{"type":"function","name":"getBigcoinPerBlock","stateMutability":"view","inputs":[],"outputs":[{"name":"","type":"uint256"}]}],
  "functionName": "getBigcoinPerBlock",
  "args": []
}' --dry-run

Game Mechanics Summary

• Facility: Required first. Tiers 1-9 with increasing miner capacity and power output.
• Miners: Purchased with $BIG. Auto-staked for 24 hours. Contribute hashrate to earn rewards.
• Rewards: Proportional to playerHashrate / totalNetworkHashrate * emissionPerBlock.
• Burns: 75% of $BIG spent is burned. 25% goes to the contract treasury.
• Selling: Miners can be sold back in-game (burned permanently). High-end miners may not be sellable.

Escalation

• Route $BIG token balance queries to reading-agw-wallet.
• Route $BIG trading/swapping to trading-on-uniswap.
• Route transaction safety to executing-agw-transactions.