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What is TeQoin?

TeQoin is an EVM-compatible Layer-2 (L2) blockchain built on Ethereum using Optimistic Rollup technology. It provides developers and users with a scalable, cost-efficient alternative to Ethereum mainnet while maintaining the security guarantees of the Ethereum network.

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Layer-2 Scaling Solution

TeQoin operates as a separate blockchain that runs in parallel to Ethereum (Layer-1), processing transactions off-chain and periodically posting transaction data back to Ethereum mainnet.

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How TeQoin Relates to Ethereum

AspectEthereum L1TeQoin L2
Transaction Speed~12-15 seconds5 seconds
Transaction Fees$1-50+ per transaction$0 (zero fees)
SecurityEthereum consensusInherits from Ethereum
Smart ContractsEVM-compatibleFully EVM-compatible
FinalityProbabilisticInstant (optimistic)

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Optimistic Rollup Technology

TeQoin uses Optimistic Rollup - a specific type of Layer-2 scaling that:
Transactions are assumed to be correct by default. This allows for fast processing without requiring validators to verify every transaction immediately.
All transaction data is posted to Ethereum L1, ensuring data availability and transparency. Anyone can reconstruct the L2 state from L1 data.
If someone submits an invalid transaction, anyone can challenge it by submitting a fraud proof within the 7-day challenge period.
Because transaction data lives on Ethereum and fraud proofs are enforced, TeQoin inherits Ethereum’s security model.

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Core Components

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🔄 Sequencer

The sequencer is responsible for:
  • Accepting user transactions
  • Ordering transactions into blocks
  • Executing transactions and updating state
  • Posting transaction data to Ethereum L1
The sequencer provides instant transaction confirmation while batching transactions for efficient L1 posting.

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🌉 Bridge Contracts

Bridge contracts on L1 and L2 enable:
  • Deposits (L1 → L2): Lock ETH on L1, mint on L2
  • Withdrawals (L2 → L1): Burn on L2, unlock on L1 after 7-day challenge period
Learn more about bridging →

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🔐 Fraud Proof System

The fraud proof system ensures:
  • Anyone can challenge invalid state transitions
  • Challengers submit fraud proofs to L1
  • Invalid transactions are reverted
  • System remains secure without trusting the sequencer
Learn more about fraud proofs →

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Key Characteristics

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Low Transaction Fees

Gasless Transactions

Users pay low in gas fees on TeQoin L2. This makes microtransactions, gaming, and frequent interactions economically viable.
How is this possible?
  • The sequencer covers gas costs
  • Transaction costs are amortized across many users
  • L2 execution is much cheaper than L1

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Full EVM Compatibility

TeQoin is 100% compatible with Ethereum’s EVM (Ethereum Virtual Machine): 
// Your existing Ethereum contracts work on TeQoin
contract MyToken {
    mapping(address => uint256) public balances;
    
    function transfer(address to, uint256 amount) public {
        require(balances[msg.sender] >= amount);
        balances[msg.sender] -= amount;
        balances[to] += amount;
    }
}
No code changes required
Same development tools (Hardhat, Foundry)
Same libraries (Web3.js, Ethers.js)
Same wallets (MetaMask, WalletConnect)

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Lightning-Fast Blocks

  • 5-second block times provide near-instant confirmation
  • Transactions feel instantaneous to users
  • Perfect for interactive applications and gaming

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Ethereum-Grade Security

Data Availability

All transaction data is posted to Ethereum, ensuring anyone can verify the state.

Fraud Proofs

Invalid transactions can be challenged and reverted, protecting user funds.

Censorship Resistance

Users can force transactions through L1 if the sequencer censors them.

Decentralization

Security doesn’t depend on trusting the sequencer - it’s enforced by Ethereum.

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TeQoin vs. Other Solutions

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Comparison with L1 (Ethereum Mainnet)

FeatureEthereum L1TeQoin L2
Transaction Cost$1-50+low-fee
Confirmation Time12-15 seconds5 seconds
Throughput (TPS)~15-301000+
Security ModelEthereum consensusInherits from Ethereum
FinalityProbabilistic (~15 min)Instant (optimistic)

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Use Cases

TeQoin is ideal for:

DeFi Applications

Low-cost swaps, lending, and yield farming with low gas fees

Gaming & NFTs

Frequent in-game transactions and NFT mints at low cost

Social & Content

Microtransactions for tipping, subscriptions, and social interactions

Enterprise Solutions

High-throughput business applications requiring low costs

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How TeQoin Works (Simplified)

1

User Submits Transaction

Alice wants to send 1 ETH to Bob on TeQoin L2. She submits the transaction through MetaMask.
2

Sequencer Processes Transaction

The TeQoin sequencer receives the transaction, validates it, and includes it in the next block (5 seconds).
3

Instant Confirmation

Alice sees the transaction confirmed instantly. Bob receives the ETH immediately.
4

Data Posted to Ethereum

The sequencer batches Alice’s transaction with hundreds of others and posts the compressed data to Ethereum L1.
5

Security Guaranteed

For 7 days, anyone can verify the transaction was correct. If invalid, it can be challenged with a fraud proof.
6

Final Settlement

After 7 days with no successful challenges, the transaction is considered final on Ethereum.

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Getting Started

Ready to use TeQoin?

Add Network to Wallet

Add Teqoin Wallet for TeQoin L2

Get Testnet ETH

Request test funds from our faucet

Deploy a Contract

Deploy your first smart contract

Learn More

Deep dive into the architecture

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Frequently Asked Questions

Yes! TeQoin inherits Ethereum’s security through fraud proofs. All transaction data is posted to Ethereum, and anyone can challenge invalid transactions. This means you don’t need to trust the TeQoin sequencer - security is enforced by Ethereum L1.
Withdrawals from TeQoin L2 to Ethereum L1 require a 7-day challenge period. This allows time for anyone to submit fraud proofs if the withdrawal is invalid. After 7 days, you can finalize your withdrawal on L1.
Yes! TeQoin is 100% EVM-compatible. You can use:
  • MetaMask, WalletConnect for wallets
  • Hardhat, Foundry for development
  • Web3.js, Ethers.js for frontend
  • Solidity for smart contracts
TeQoin includes censorship resistance mechanisms. If the sequencer is offline or censoring transactions, users can force their transactions through Ethereum L1 directly. This ensures the network remains accessible even if the sequencer fails.
No! TeQoin provides zero-fee transactions for users. The sequencer covers the cost of posting data to Ethereum L1.
Next: Learn Why Choose TeQoin over other scaling solutions.