How 12-Word Seed Phrases & Multi-Chain Wallets Work
Master the mechanics of Web3 cryptography, multi-chain address derivation, EVM ledger separation, and key storage safety.
1. One 12-Word Seed Phrase = Master Key for ALL Blockchains
A 12-word recovery phrase (BIP-39 mnemonic) is not locked to a single blockchain. It is a master mathematical seed that deterministically generates wallet addresses for every major blockchain in existence using HD (Hierarchical Deterministic) derivation paths:
2. Why EVM Chains Share the EXACT Same Address
Notice how Apertum EVM, BNB Smart Chain, Ethereum, Arbitrum, and Polygon all share the exact same 0x079B...3BC4 address.
All EVM-compatible chains use secp256k1 elliptic curve cryptography and derive your public address using Keccak-256 hashing. Because the mathematical formula is identical, your seed phrase yields the exact same
0x... address on every EVM chain.
Ledger Separation Across Blockchains
Even though the address (0x079B...3BC4) is identical across EVM chains, each chain maintains its own completely separate ledger:
- 300 USDT sent on BNB Smart Chain lives strictly on BNB Chain.
- 136 APTM mined on Apertum EVM lives strictly on Apertum EVM.
- 1.5 ETH deposited on Ethereum Mainnet lives strictly on Ethereum.
When you switch networks inside ROYI Wallet, the address remains the same, but ROYI connects to that specific blockchain's RPC node to retrieve your balance for that ledger.
3. Wallet Connection Safety: Extension vs Standalone Enclave
Understanding how your private keys are handled when you connect your wallet:
• ⚠️ Important Warning: If you uninstall SafePal or MetaMask, ROYI will lose connection to it unless you re-install the extension or import your 12-word seed phrase directly into ROYI.
ethers.js and stored inside ROYI's encrypted browser enclave.• 🛡️ 100% Standalone: Your ROYI wallet will continue working forever even if you uninstall SafePal, MetaMask, or any third-party extensions!