Fixed 10,000,000 QTM supply with a 15-year on-chain vesting schedule. Deploy Solidity contracts, use MetaMask, and explore every block — with state checkpoints publicly anchored to GGCHAIN.
| Network | Qumtam Chain |
| RPC URL | https://rpc.qumtamchain.com |
| Chain ID | 424242 |
| Currency | QTM |
| Explorer | explorer.qumtamchain.com |
| Type | EVM chain (Clique PoA) |
| Anchoring | State checkpoints posted to GGCHAIN every ~10 min |
| EVM Version | London (compile with paris/london) |
| Client | Geth 1.13.x |
| Status | Mainnet · PoA |
| Total Supply | 10,000,000 QTM (fixed) |
| Locked | 9,900,000 QTM (99%) |
| Liquid | 100,000 QTM (1%) |
| Schedule | Linear · every 30 days · 180 months |
| Per Month | 55,000 QTM |
| Contract | 0xC8e3...5C1A ↗ |
| Vesting | Enforced by smart contract — no early withdrawal, even by the owner |
| Public RPC | Key-less node — holds no accounts; sealer fully private |
| Sealer | Firewalled, key files locked down |
| Anchoring | Checkpoints on GGCHAIN with challenge window |
| Backups | Daily chain snapshots (7-day rotation) |
| Rate Limits | RPC flood protection at the edge |
55,000 QTM unlocks every 30 days, enforced by the on-chain verified vesting contract. Nobody can withdraw ahead of schedule.
Click "Add to MetaMask" above, or add it manually using the RPC URL and Chain ID 424242.
Point Hardhat or Foundry at the RPC and deploy. Set the EVM target to london or paris (no PUSH0).
View your transactions on the Qumtam Explorer and verify your contract source code so users can read and trust it.
curl -X POST https://rpc.qumtamchain.com \
-H "Content-Type: application/json" \
-d '{"jsonrpc":"2.0","method":"eth_blockNumber",
"params":[],"id":1}'
networks: {
qumtam: {
url: "https://rpc.qumtamchain.com",
chainId: 424242
}
},
solidity: {
version: "0.8.24",
settings: { evmVersion: "london" }
}