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Kaon Network Testnet v2.5 Specification

Kaon is a Bitcoin-native L1 blockchain with cross-chain composability, built by a security-first team to address systemic security risks inherent in bridge-, multisig-, oracle-, and rollup-based designs.

Current solutions either rely on centralized parties and points of failures, or do not allow for seamless integration of cross-chain environments within a UTXO model framework.

Our mission is to solve these systemic issues. The result is a bridge-less and oracle-less essential infrastructure layer that not only offers the first cryptographically secure wrapped BTC, but goes further and makes Bitcoin interoperability secure, composable and scalable.

Kaon’s consensus model, UTXO native design, and UTXO and cross-chain information handling allows it to give the user a combination of important functionalities that are unique only to Kaon. Some of the more pertinent ones include:

  • Avoiding centralisation risk.
  • Having control over the entire transaction process.
  • Maintaining the same security and privacy standards as Bitcoin.

Below are Kaon's testnet specifications for Testnet V2.5. Kaon's first cross-chain integration will be EVM, before expanding to Polygon, Tendermint, Solana, and more. The information below will be updated as future testnet versions are rolled out.

Overview

Property Details
Network Name Kaon
Native Token KAON
Consensus dPoS, cold staking, and leasing
Validator Commitment Collator TX with OP_CTVL
Block Time Every 10 seconds
Ecosystem UTXO + EVM
TPS Pending Update
Currency Symbol KAON
Chain ID 10101
RPC URL https://testnet.kaon.one
Block Explorer URL https://explorer.testnet.kaon.one

Transaction Support

Transaction Types Details
Bitcoin Transaction Types Supported
Cascade Signature Transaction Supported
EVM Stored Transactions Supported
Invoice Address Type All Bitcoin prefixes + Ethereum format address
Sending All Balance Supported
Transaction Outputs Enforced to be at least 43 (0conf transactions planned)

EVM Interface

EVM Interface Specifics Details
eth_sign Uses different message prefix: "\x15Kaon Signed Message:\n"
Contract Address Generation Uses TX hash instead of nonce
Block Hash Computed differently, block headers behave incorrectly (backlog)
Debug Calls Not supported (on roadmap)
Sending Coins in Creation Prohibited, transactions rejected
msg.value Completely supported
Non-EVM Accounts Observable and interactable
eth_estimateGas Completely supported
Receipts Supported for all transactions
Multiple Receivers (BTC transactions) Imitates internal transfers in EVM
trace_block Supported

EVM Compatibility

EVM Details
EVMC Version 10.1.0
Ethereum Fork Shanghai
Contract Max Code Size 49152 (double of Ethereum’s max size)
Unsupported Opcodes BLOBHASH, BLOBBASEFEE (from 4844)
Gas Refund Not supported for SSTORE and SUICIDE opcodes

Deployed Contracts

Contract Address
RELAYHUB gas_relay_hub 0x86209285bA33aecee2C3CaefEF372A2a811468A4
MULTICALL multicall 0x6cc1127612fdd0E6c7403eA4852ebb6F5AA0b6C5
ENSREGISTRYWITHFALLBACK 0x9A3d1527778d872b86241D0dEe0f269D68e52c6D
WETH9 weth 0x4cA7c59043B0D30AcF62f9cCd64BcAb0F86f2aA1
UNISWAPV2FACTORY uniswap_v2 0x7465fB21fd210b44c0c1BE5c38729B240cBE588F
UNISWAPV2ERC20 0x93F88b0Cc7FB5c2f09b8a1f37CD8Fc7615Ff3E87
UNISWAPV2ROUTER01 0x0fe20a7df3d566820dF35b9Ee2039d6dF42179e7
UNISWAPV2ROUTER02 router 0x1eed0a916a87145383B71175123a0f74CB113736
UNISWAPV2MIGRATOR migrator 0xa987aC3C8520eeFc8003503Fb3977E53a022Ecf4

Metamask Support

  • Supported: Metamask is fully supported for use with Kaon.

Additional Notes

  • No Changes in Nominations: Even though Kaon is built over Bitcoin, the denomination remains the same as Ethereum.
  • Contract Address Generation: Uses transaction hash instead of nonce for contract creation.
  • ecrecover Support: Fully supported.
  • Gas Refund Policy: No gas refunds in SSTORE or SUICIDE opcodes.