BTC + ETH + BSC All-in-One Management: ArcSign Multi-Chain Tutorial
Why You Need Multi-Chain Management
The blockchain ecosystem in 2026 is far from a single-chain world. Ethereum hosts the largest DeFi ecosystem, BSC offers low-fee transactions, Polygon and Arbitrum lead the L2 scaling revolution, and Avalanche and Fantom each have unique application scenarios. An active crypto user typically holds assets across 3 to 5 different chains.
The challenge is: how do you securely manage assets scattered across multiple chains? Many people use a different wallet app for each chain — MetaMask for EVM chains, Electrum for BTC, plus various chain-specific wallets. This is not only inconvenient but creates serious security risks: more mnemonic phrases to remember, more software to trust, and more attack surfaces to worry about.
One USB, one mnemonic, 22 chains. Through HD wallet standards (BIP-39/BIP-44), ArcSign lets you manage Bitcoin and all major EVM chain assets in a single cold wallet interface, with all private keys securely stored on your USB device.
ArcSign's 22 Supported Chains
ArcSign currently supports Bitcoin plus 21 EVM-compatible chains. Balances, tokens, NFTs, and transaction history for each chain can be viewed and managed directly from the Dashboard.
ArcSign provides enhanced BSC support via NodeReal APIs (nr_getTokenHoldings, nr_getNFTHoldings), enabling direct BEP-20 token balance and NFT holdings queries. Other EVM chains use Alchemy as the Provider.
How HD Wallets Enable "One Mnemonic, Many Chains"
ArcSign uses HD (Hierarchical Deterministic) wallet architecture following BIP-39 and BIP-44 standards. This industry-wide standard allows a single 12-word mnemonic phrase to derive an unlimited number of addresses — with each chain's addresses completely independent and unrelated to each other.
The Secret of Derivation Paths
BIP-44 defines a structured path format: m/purpose'/coin_type'/account'/change/address_index. The coin_type field is the key differentiator between chains. Bitcoin's coin type is 0, while Ethereum and all EVM chains share 60. This means the same mnemonic phrase derives completely different BTC and ETH addresses, keeping each chain's assets fully isolated.
The 12-word mnemonic generates a 512-bit seed via PBKDF2, which derives the Master Key. This process happens in ArcSign's mlock-protected memory, with private key exposure limited to just 1-5 milliseconds.
The Master Key derives independent child keys for each chain via BIP-44 paths. BTC uses m/44'/0'/0', ETH and EVM chains use m/44'/60'/0'. Each chain's private key is mathematically impossible to reverse-engineer back to the Master Key.
Each chain's derived private key is protected by XOR three-shard encryption, with shards distributed across the USB. Even if the USB is stolen, attackers cannot reconstruct any chain's private key from the fragments.
Tutorial: 5 Steps to Multi-Chain Management
If you haven't set up ArcSign yet, check the Beginner Setup Guide first. This tutorial assumes you already have a wallet created and want to start managing assets across multiple chains.
After launching ArcSign, find the "Chain Management" or "Networks" option in the left sidebar. You'll see a list of all supported chains with their enabled status.
Toggle the switch next to each chain you want to manage. ArcSign automatically derives that chain's address from your mnemonic — no need to create a new wallet or remember a new seed phrase.
To read on-chain data (balances, transaction history, token info), ArcSign needs a Provider connection. Most EVM chains use Alchemy (free tier is sufficient), while BSC uses NodeReal. Enter your API Key in the settings page.
Back on the Dashboard, you can now see a portfolio overview across all enabled chains: native token balances, ERC-20/BEP-20 token holdings, NFT Gallery, and DeFi positions (stETH, ankrETH, ankrBNB staking positions with real-time APY).
After configuring multi-chain, be sure to export a .arcsign encrypted backup to a second USB. This backup file contains all your chain wallet settings and key data, encrypted with AES-256-GCM — the file is encrypted upon export with no additional password step needed. To restore, simply import with one click.
Cross-Chain Operations: Transfers, Swaps & DeFi
Multi-Chain Transfers
Sending assets in ArcSign is straightforward: select the chain, enter the recipient address and amount, confirm, and ArcSign signs the transaction locally using that chain's private key on your USB. The entire signing process happens offline — your private key never leaves the device. BTC transfers use native UTXO protocol, while EVM chain transfers support EIP-1559 dynamic gas fees.
Built-in DEX Swap
ArcSign integrates OpenOcean and KyberSwap DEX aggregators, allowing you to swap tokens directly from the cold wallet interface — no need to connect to any third-party website. The aggregators automatically find the best trading routes. For detailed instructions, check the DEX Swap Tutorial.
WalletConnect v2 DApp Integration
For advanced DeFi operations (staking, liquidity mining, cross-chain bridges), you can use ArcSign's WalletConnect v2 feature. Simply scan a DApp's QR code to securely sign transactions from your cold wallet — enjoy DeFi yields while keeping your keys offline. See the WalletConnect Tutorial for details.
ArcSign automatically detects and displays your DeFi staking positions, including stETH (Lido), ankrETH, and ankrBNB liquid staking tokens with real-time APY. Check the "DeFi" tab in the Dashboard for a consolidated view of passive income across all chains.
Multi-Chain Wallet Comparison
There are several multi-chain management solutions on the market. Here's how they compare in terms of features and security:
| Feature | ArcSign | MetaMask | Ledger | Trust Wallet |
|---|---|---|---|---|
| BTC + EVM Support | ✓ 22 chains | EVM only | ✓ Multi-chain | ✓ Multi-chain |
| Cold Storage | ✓ USB offline | ✗ Hot wallet | ✓ Hardware | ✗ Mobile |
| Cost | ✓ Free | ✓ Free | $79-149 USD | ✓ Free |
| XOR Three-Shard | ✓ | ✗ | ✗ | ✗ |
| mlock Protection | ✓ | ✗ | Secure element | ✗ |
| Encrypted Backup | ✓ .arcsign | ✗ Seed only | Ledger Recover (controversial) | ✗ Seed only |
| Built-in DEX Swap | ✓ Aggregator | ✓ | Via Ledger Live | ✓ |
| Token Approvals | ✓ Batch revoke | ✗ Third-party | ✗ Third-party | ✗ |
| Supply Chain Risk | ✓ None (generic USB) | ✓ None | ✗ Yes | ✓ None |
Security Best Practices for Multi-Chain
1. Regularly Review Token Approvals
After using DeFi protocols across multiple chains, you may accumulate many token approvals that become forgotten attack vectors. ArcSign's built-in Token Approval management supports viewing and revoking approvals across 6 EVM chains. Pro users can batch-revoke, clearing all unnecessary approvals at once.
2. Be Cautious with Cross-Chain Bridges
Cross-chain bridges have been among the highest-value hack targets in recent years. When moving assets between chains, choose audited, well-established bridge protocols and avoid transferring large amounts in a single transaction. ArcSign's cold storage nature ensures that even if a DApp frontend is compromised, your private keys remain safe.
3. Don't Mix Chain Addresses
Although EVM chains share the same address format (0x prefix), assets on different chains are not interchangeable. Sending ETH to a BSC address (or vice versa) may result in lost assets. ArcSign clearly labels the selected chain on the send page to help you avoid this mistake. BTC addresses use a completely different format (bc1 prefix), making confusion impossible.
No matter how many chains you manage, backup is always the most important thing. ArcSign's .arcsign encrypted backup file covers all chain wallet settings and keys — one backup protects all your assets. Regularly exporting fresh backups to an offline USB is the best practice.
FAQ
Q: Which blockchains does ArcSign support?
ArcSign supports 22 chains: Bitcoin (BTC) plus 21 EVM-compatible chains including Ethereum, BSC, Polygon, Arbitrum, Optimism, Avalanche, Base, Fantom, and more. All chains share a single mnemonic phrase, with independent addresses derived via BIP-44.
Q: Is a multi-chain wallet less secure than a single-chain wallet?
ArcSign's multi-chain wallet provides the same security level as a single-chain wallet. All chain private keys are protected by XOR three-shard encryption and mlock memory protection. The only difference is the derivation path (BIP-44 coin type field) — the core encryption mechanism is identical.
Q: Can I do cross-chain transfers with ArcSign?
ArcSign supports sending and receiving assets on each chain independently. To move assets between chains (e.g., ETH from Ethereum to Arbitrum), you can use ArcSign's built-in DEX Swap feature or connect to cross-chain bridge DApps via WalletConnect.
Q: Do I need to create a new wallet to add a new chain?
No. ArcSign uses HD wallet architecture (BIP-39/BIP-44), so a single mnemonic phrase derives addresses for all supported chains. Simply enable the chain in the Dashboard, and ArcSign will automatically derive the address and start tracking balances.
One USB, Multi-Chain DeFi Mastery
ArcSign offers free asset management across 7 chains. Pro users enjoy cross-chain NFT gallery, batch approval revocation, and best-route swaps.
Download ArcSign Free → Explore Pro