PayID is a secure payment system that links your bank account to an email or phone number. It allows instant transfers between Australian banks and is widely supported by crypto exchanges.

How do I buy Bitcoin with PayID?

Sign up with a registered exchange, verify your identity, select PayID as your deposit method, transfer AUD, and buy Bitcoin instantly.

Is PayID safe for buying Bitcoin?

Yes — PayID is backed by Australian banks and complies with AUSTRAC regulations. It offers fast, secure transfers and is ideal for crypto purchases.

What Is Bitcoin? (2026 Beginner Guide)

Updated: May 29 2026 • CoinTrack Australia

Bitcoin is the world’s first and largest cryptocurrency. Created in 2009, it introduced the idea of decentralised digital money that operates without banks. This guide explains what Bitcoin is, how it works, and why it remains the most valuable crypto asset in 2026.

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What is Bitcoin

Bitcoin is a digital currency that allows people to send and receive payments without relying on a bank. It runs on a decentralised network of computers called nodes, which verify and record every transaction.

How Bitcoin works

Bitcoin uses blockchain technology to store a permanent, tamper‑proof record of all transactions. Miners compete to add new blocks to the chain by solving complex mathematical problems.

Blockchain: A public ledger of all Bitcoin transactions.
Mining: The process of securing the network and creating new BTC.
Wallet: A tool used to store and manage your Bitcoin.
Private key: A secret code that proves ownership of your BTC.

Why Bitcoin is valuable

Bitcoin is often compared to digital gold. Its value comes from scarcity, decentralisation, and global demand. Only 21 million BTC will ever exist.

Key reasons people buy Bitcoin

Limited supply (21 million cap)
Decentralised and censorship‑resistant
Fast global payments
Store of value similar to gold
Strong long‑term adoption

Bitcoin vs traditional money

Unlike traditional currencies issued by governments, Bitcoin is not controlled by any central authority. It operates 24/7 and can be sent anywhere in the world in minutes.

Bitcoin (BTC)

The original cryptocurrency and the largest by market cap.

View Bitcoin price

Ethereum (ETH)

The second‑largest crypto, often compared to Bitcoin.

View Ethereum price

Live Bitcoin price chart

Track the latest Bitcoin price using our TradingView partner chart.

Bonus: Get a $15 TradingView credit when you sign up using our partner link: TradingView $15 Offer

How to buy Bitcoin in Australia

Buying Bitcoin in Australia is simple. You can use an AUSTRAC‑registered exchange like Digital Surge to deposit AUD and purchase BTC instantly.

Create a Digital Surge account.
Verify your identity.
Deposit AUD using PayID.
Buy Bitcoin (BTC).
Store your BTC in a secure wallet.

Start buying Bitcoin with Digital Surge

Frequently asked questions

Is Bitcoin safe

Bitcoin is secure when stored properly, but prices can be volatile.

Can Bitcoin be hacked

The Bitcoin network itself has never been hacked, but exchanges and wallets can be.

Is Bitcoin legal in Australia

Yes. Bitcoin is legal and regulated by AUSTRAC.

Continue learning

Disclaimer: This information is for educational purposes only and is not financial advice. Cryptocurrency is volatile and you should consider speaking with a licensed financial professional.