If you're looking to buy Portal to Bitcoin (PTB), you've come to the right place. PTB is the native token of Portal, a custody-less interoperability protocol that enables atomic swaps between...
Buy Portal to Bitcoin (PTB) — A simple guide
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Blockchain infrastructure
Blockchain infrastructure provides the services that applications need to operate: data feeds, storage, transaction processing, interoperability, identity and developer tooling. Some projects run their own networks; others serve existing blockchains.
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What is blockchain infrastructure?
Browse the buying guidesThis category groups those enabling services, so its tokens should be compared by function rather than treated as one uniform market.
How it works
An oracle delivers outside information, a storage network preserves data, and a bridge coordinates assets or messages between chains. Each introduces different failure modes. Tokens may pay providers, secure a service through staking or govern its rules; in some designs the connection between usage and token demand is indirect. Look for working integrations, recurring demand and clear service economics. The number of announced partners says less than how deeply an application depends on the service and who pays for it.
Explore the foundations
Blockchain Explained: Follow a Transaction from Wallet to Confirmation↗
Web3 Explained: Understand What Your Wallet Is Being Asked to Do↗
Blockchain explorers: trace a transfer step by step↗
Sources and further reading
A little groundwork goes a long way
Before your next purchase or transfer, understand who controls access, where your crypto is going and what the trade will actually cost.
Protect access to your crypto
An exchange account and a self-custody wallet need different safeguards. Protect exchange logins with a unique password and strong two-factor authentication. For self-custody, your recovery backup is what lets you restore access.
Keep recovery words offline and private. A support agent or website asking for them is a reason to stop.
See a recovery example
Your phone breaks. An exchange may help you recover your account after identity checks. A self-custody wallet cannot reset your recovery phrase. Check your wallet’s official backup instructions before relying on it.
Choose the right transfer network
The asset, token version and network must be supported at the destination. A familiar ticker or a matching address format is not enough. Read the receiving platform’s deposit instructions before selecting a withdrawal network.
Check the address, any required memo or tag, fees and minimums. Consider a small test transfer first.
See a network example
Your destination accepts USDC on Ethereum. Selecting a cheaper network at the sending exchange does not make it an Ethereum transfer. Use a network both ends support; an ordinary withdrawal does not bridge tokens.
Understand the price you pay
Trading fees are only part of the cost. The spread, available liquidity and withdrawal charges also matter. A market order prioritizes execution; a limit order controls the price but may remain unfilled or fill only partly.
Check the order preview and the amount you will receive, then compare the full cost of your intended purchase and withdrawal.
Work through a cost example
Hypothetical example: a $200 trade with a 0.1% trading fee costs $0.20 in trading fees. A separate $5 withdrawal fee brings those charges to $5.20. Spread or slippage may add more; these are not quoted exchange rates.
