How to connect UniSat Wallet to Fractal Bitcoin? (Mainnet Switch)

Understanding UniSat Wallet Compatibility

1. UniSat Wallet is a browser extension and mobile application designed specifically for Bitcoin-based Layer-2 networks and ordinals ecosystem.

2. It supports multiple Bitcoin sidechains and scaling solutions, including Stacks, Lightning Network, and Fractal Bitcoin through dedicated configuration options.

3. Fractal Bitcoin operates as an EVM-compatible execution layer anchored to Bitcoin’s security model via zero-knowledge proofs.

4. UniSat Wallet recognizes Fractal Bitcoin as a distinct network environment requiring explicit RPC endpoint registration and chain ID verification.

5. The wallet does not auto-detect Fractal Bitcoin — users must manually configure the network parameters before initiating any transaction or asset interaction.

Mainnet Switch Procedure

1. Open UniSat Wallet extension or app and navigate to Settings > Network > Add Network.

2. Enter the official Fractal Bitcoin Mainnet details: Chain ID 2024, Network Name “Fractal Bitcoin”, RPC URL https://rpc.fractal.bitcoin/mainnet, Block Explorer URL https://explorer.fractal.bitcoin/mainnet.

3. Confirm the checksum address format matches Fractal’s native Bech32m encoding for account derivation.

4. Save the configuration and select “Fractal Bitcoin” from the active network dropdown menu.

5. The wallet interface will refresh, displaying Fractal-native token balances, pending cross-chain deposits, and supported dApp integrations.

Address Derivation and Key Management

1. UniSat uses BIP-39 mnemonic phrases to generate deterministic key paths compatible with Fractal Bitcoin’s EVM-aligned HD wallet standard.

2. The derivation path for Fractal Bitcoin is m/44'/60'/0'/0, aligning with Ethereum-style accounts while preserving Bitcoin-backed private key sovereignty.

3. Each UniSat account generates a unique Fractal-compatible address that maps directly to its on-chain identity in the Fractal state tree.

4. Users retain full control over signing keys; no custodial relays or third-party signature services are involved during Fractal interactions.

5. Address reuse across Bitcoin mainnet and Fractal Bitcoin is technically possible but discouraged due to privacy leakage and potential UTXO linkage exposure.

Transaction Signing and Broadcast Flow

1. When initiating a transfer or smart contract call on Fractal Bitcoin, UniSat constructs a typed EIP-712 transaction envelope.

2. The wallet signs the payload using the locally held private key without exposing it to external endpoints.

3. Signed transactions are submitted directly to Fractal’s public sequencer nodes via the configured RPC endpoint.

4. Confirmation status appears in real time within the wallet’s activity feed, referencing Fractal block height and inclusion timestamp.

5. Failed transactions display precise error codes mapped to Fractal’s consensus validation rules, such as insufficient gas, invalid ZK proof, or epoch misalignment.

Frequently Asked Questions

Q: Does UniSat Wallet support hardware wallet integration for Fractal Bitcoin?Yes, Ledger devices connected via WebUSB can sign Fractal Bitcoin transactions when UniSat Wallet is set to “Hardware Wallet Mode” and the Fractal app is installed on the device.

Q: Can I import an existing Fractal Bitcoin address generated outside UniSat?Yes, you may import a private key or mnemonic phrase into UniSat Wallet, and it will automatically derive the corresponding Fractal Bitcoin address under the correct path.

Q: Why does my Fractal Bitcoin balance show zero after switching networks?This occurs if no assets have been bridged to Fractal Bitcoin or if the wallet has not scanned the correct block range; manual rescan using the “Refresh Balances” function resolves this.

Q: Is there a difference between UniSat Wallet’s Fractal Bitcoin support and its Bitcoin mainnet support?Yes — Fractal Bitcoin requires EVM-style transaction encoding, gas estimation, and ZK-proof-aware signature schemes, whereas Bitcoin mainnet relies on PSBTs and native script validation.