Wallets

c8ntinuum provides official EVM network metadata for third-party wallet applications. There is no separate official c8ntinuum wallet application documented in this repository; users connect through EVM-compatible wallets by adding the c8ntinuum RPC, chain ID, currency, and explorer values.

Supported wallets

Wallet	Support	Notes
MetaMask	Browser extension and mobile	Add c8ntinuum as a custom network.
Rabby	Browser extension	Add c8ntinuum with the same EVM network values.
Coinbase Wallet	Browser extension and mobile	Add c8ntinuum as a custom network where custom networks are supported.
WalletConnect-compatible wallets	Mobile wallet protocol	Dapps should advertise c8ntinuum as `eip155:8`.
Ledger Nano	Hardware wallet through an EVM wallet	Ledger Nano S Plus and Nano X are supported through MetaMask, Rabby, or another EVM wallet using the Ledger Ethereum app and derivation path.

Mainnet network details

Use these values when a wallet asks for manual network configuration.

Field	Value
Network Name	`c8ntinuum`
RPC URL	`https://public-evm-rpc.c8ntinuum.com`
Chain ID	`8` / `0x8`
Currency Symbol	`CTM`
Block Explorer	`https://ctmscan.io`

For step-by-step wallet setup, see Add c8ntinuum Mainnet Beta to Wallet.

Testnet network details

Field	Value
Network Name	`c8ntinuum testnet`
RPC URL	`https://public-testnet-evm.c8ntinuum.link`
Chain ID	`8888` / `0x22b8`
Currency Symbol	`tCTM`
Block Explorer	`https://testnet.ctmscan.io`

For step-by-step testnet setup, see Add c8ntinuum Testnet to Wallet. For the canonical testnet endpoint and status table, see Network Information - Testnet.

WalletConnect metadata

WalletConnect dapps should expose c8ntinuum as an EVM chain in the eip155 namespace.

Metadata	Value
Namespace	`eip155`
Chain	`eip155:8`
Native currency	`CTM`
RPC URL	`https://public-evm-rpc.c8ntinuum.com`
Explorer URL	`https://ctmscan.io`

{
  "chains": ["eip155:8"],
  "rpcMap": {
    "8": "https://public-evm-rpc.c8ntinuum.com"
  }
}

Wallet application workflows

No separate official c8ntinuum wallet application is published in this repository. c8ntinuum is integrated through EVM-compatible wallets and wallet protocols using the network metadata above.

Workflow	Wallet behavior
Account generation	Wallets generate Ethereum-compatible `eth_secp256k1` accounts. The EVM address is the primary wallet address.
Account selection	Users choose an Ethereum-style account in MetaMask, Rabby, Coinbase Wallet, a Ledger Nano (S Plus or X) through an EVM wallet, or a WalletConnect-compatible wallet.
Network selection	Wallets must be switched to chain ID `8` for mainnet or `8888` for testnet before signing.
Transaction construction	Dapps request standard EVM transactions with `eth_sendTransaction`; wallets fill or confirm nonce, fee, gas, recipient, value, and data.
Signing	Browser and mobile wallets sign in-app. Ledger Nano signs through the Ledger Ethereum app and the connected EVM wallet.
Broadcasting	Most wallets broadcast through their configured RPC after signing. Custody systems can broadcast offline-signed transactions with `eth_sendRawTransaction`.
Confirmation	Wallets and dapps should poll `eth_getTransactionReceipt` and treat `status == 1` as success.

For custody and exchange systems that construct transactions without an interactive wallet, see Offline Signing and Broadcasting.

Wallet support matrix

Wallet path	Account generation	Transaction construction	Signing	Broadcasting	Confirmation
MetaMask browser/mobile	Generates or imports Ethereum-compatible accounts.	Dapps request `eth_sendTransaction`; users confirm recipient, value, fees, and data.	In-wallet software signer, or Ledger when connected.	Wallet broadcasts through the configured c8ntinuum RPC.	Wallet activity, CTMScan, or `eth_getTransactionReceipt`.
Rabby browser	Generates or imports Ethereum-compatible accounts.	Dapps request standard EVM transactions with chain ID `8`.	In-wallet software signer, or Ledger when connected.	Wallet broadcasts through the configured c8ntinuum RPC.	Wallet activity, CTMScan, or `eth_getTransactionReceipt`.
Coinbase Wallet	Generates or imports Ethereum-compatible accounts where custom networks are supported.	Dapps request standard EVM transactions after the network is added.	Browser or mobile wallet signer.	Wallet broadcasts through the configured c8ntinuum RPC.	Wallet activity, CTMScan, or `eth_getTransactionReceipt`.
WalletConnect-compatible wallets	Wallet owns account generation; dapps advertise `eip155:8`.	Dapps submit EVM transaction requests through WalletConnect.	Wallet signs in-app after the user approves the request.	Wallet broadcasts through its configured RPC or connected session policy.	Dapp should poll `eth_getTransactionReceipt`; users can also inspect CTMScan.
Ledger Nano through an EVM wallet	Ledger Ethereum app derives Ethereum-compatible accounts on the selected path.	Connected EVM wallet constructs the transaction and displays the signing prompt.	Ledger Nano S Plus or Nano X signs through the Ledger Ethereum app.	Connected EVM wallet broadcasts through the configured c8ntinuum RPC.	Connected wallet activity, CTMScan, or `eth_getTransactionReceipt`.

Third-party wallet instructions

Use these instructions when documenting c8ntinuum support for third-party wallet users:

Add c8ntinuum as a custom EVM network using the mainnet or testnet values above.
Select an account derived with an Ethereum-compatible path.
Confirm the wallet shows the expected chain ID before signing.
Keep native CTM in the sending account for gas.
For ERC-20 tokens, import the token contract address manually if the wallet does not auto-detect it.
After signing, confirm the transaction in the wallet activity list, CTMScan, or by querying eth_getTransactionReceipt.

Wallet applications should display the EVM address for contract and token flows. If a product also shows the c8... account representation, label it clearly as the Cosmos-format alias of the same account.

Wrapped CTM

c8ntinuum’s wrapped native token is the WETH9-compatible wrapped CTM contract:

0xc8Fb80fCc03f699C70ff0CC08C09106288888888

Use this address when a wallet, portfolio app, or dapp needs an ERC-20 representation of native CTM. For token model details, see Tokens and Pre-deployed Contracts.

Address formats and conversion

Use case	Address format
EVM wallets, contracts, JSON-RPC, and token imports	`0x...`
Cosmos account UX, REST queries, and IBC-facing account flows	`c8...`
Validator operator addresses	`c8valoper...`

Both the 0x and c8 account formats refer to the same underlying account. Use the Accounts page for key type and prefix details, and the Bech32 precompile when a contract needs to convert between formats.

Common wallet errors

Symptom	Likely cause	Fix
Wallet shows the wrong chain	Chain ID was entered as a different value.	Edit the custom network and use `8` or `0x8`.
Wallet says the network is unsupported	The wallet has not added c8ntinuum as a custom EVM network.	Add the mainnet values from this page manually.
Transaction cannot be sent	Account has no native `CTM` for gas.	Fund the account with CTM before sending transactions or token transfers.
Token is not visible	The ERC-20 was not imported into the wallet UI.	Import the token contract address manually and confirm it on CTMScan.
MetaMask mobile opens the wrong network	The mobile app is still connected to another chain.	Switch networks inside MetaMask mobile before approving the dapp connection.
Ledger Nano signing fails or shows an unexpected address	The connected EVM wallet is using a different derivation path or Ledger app.	Open the Ledger Ethereum app on the Nano S Plus or Nano X and use the Ethereum path documented in Accounts.
RPC is unavailable	Public endpoint is temporarily unreachable or blocked by local networking.	Retry later, check `https://public-evm-rpc.c8ntinuum.com`, or use a documented provider when more are published.
Explorer links do not open	Explorer URL is missing from the custom network.	Set the block explorer URL to `https://ctmscan.io`.

Introduction

Developer Essentials

Tooling and Infrastructure

Reference

Guides

Resources

Supported wallets

Mainnet network details

Testnet network details

WalletConnect metadata

Wallet application workflows

Wallet support matrix

Third-party wallet instructions

Wrapped CTM

Address formats and conversion

Common wallet errors

​Supported wallets

​Mainnet network details

​Testnet network details

​WalletConnect metadata

​Wallet application workflows

​Wallet support matrix

​Third-party wallet instructions

​Wrapped CTM

​Address formats and conversion

​Common wallet errors

Supported wallets

Mainnet network details

Testnet network details

WalletConnect metadata

Wallet application workflows

Wallet support matrix

Third-party wallet instructions

Wrapped CTM

Address formats and conversion

Common wallet errors