Bagaimana Transaksi Bitcoin Berfungsi
📖 6 min read
Quick Answer
When you send Bitcoin, you are not "moving" a coin like a file. You are signing a message that consumes some of your previous received amounts and creates new ones for the recipient. Here is exactly what happens in the few seconds and minutes after you hit send.
💡 Think of it as…
Paying with cash. To pay 7 dollars you hand over a 10-dollar bill (an input) and get 3 back as change (an output to yourself). Bitcoin works the same way — you spend whole chunks and receive change.
Input dan output
Your wallet gathers "inputs" (coins you previously received) and creates "outputs" (the amount to the recipient, plus change back to you). The difference between inputs and outputs is the miner fee.
The mempool
Selepas anda menandatangani dan menyiarkan, urus niaga menunggu di mempool — kawasan pegangan transaksi yang belum disahkan. Penambang memilih urus niaga dari sini, biasanya memihak kepada mereka yang membayar yuran yang lebih tinggi setiap bait.
Confirmation
When a miner includes your transaction in a block, it gets its first confirmation. Each new block on top adds another. After a few confirmations the payment is effectively irreversible.
🔑 Key takeaway
Transaksi membelanjakan output sebelumnya dan mencipta yang baharu, menunggu dalam mempool, kemudian menjadi kekal setelah dilombong ke dalam blok. Yuran membeli anda pengesahan lebih cepat.
Why this matters for you
Understanding fees and confirmations helps you avoid overpaying when sending remittances or moving funds between exchanges like Bitkub, WazirX or Indodax — and explains why the Lightning Network exists for instant, near-free small payments.
Soalan lazim
Why is my transaction stuck or pending?▼
It is likely waiting in the mempool with a fee too low for current demand. You can wait for traffic to drop, or use fee-bumping features (RBF or CPFP) if your wallet supports them.
Bolehkah saya membatalkan transaksi Bitcoin?▼
Once confirmed, no. While unconfirmed, some wallets let you replace it with a higher-fee version (Replace-By-Fee). Always double-check the address before sending.
Why are fees sometimes high?▼
Ruang blok adalah terhad. Apabila ramai orang berurus niaga serentak, mereka membida yuran yang lebih tinggi untuk masuk lebih awal. Yuran naik dan turun dengan permintaan.