🔧 Bitcoin Script Type Reference

📥 Decoder Input

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📊 Execution Stack Visualizer

Step through script execution to see the stack state.

Click "Step Execution" to start.

⚡ HTLC & Lightning Network Examples

Hash Time-Locked Contract (HTLC):
Used in Lightning Network for atomic swaps and payment channels.

OP_IF

                  OP_HASH160 <payment_hash> OP_EQUALVERIFY

                  OP_DUP OP_HASH160 <receiver_pubkey_hash>

                OP_ELSE

                  <timeout_blocks> OP_CHECKLOCKTIMEVERIFY OP_DROP

                  OP_DUP OP_HASH160 <sender_pubkey_hash>

                OP_ENDIF

                OP_EQUALVERIFY OP_CHECKSIG

How it works: Receiver can claim funds by revealing the preimage of payment_hash before timeout. If they don't, sender can reclaim funds after timeout_blocks — enabling trustless off-chain payment routing.

🧩 Miniscript Policy Compiler (Simplified)

Enter a policy in plain English-like syntax:

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