BTC21 knowledge base
Bitcoin Block Explorer FAQ
Clear answers for using the free BTC21 explorer to inspect Bitcoin blocks, transactions, addresses, and mempool activity.
What is the BTC21 Bitcoin block explorer?
It is a free public tool for inspecting Bitcoin blocks, transactions, addresses, and mempool activity.
Can I look up a Bitcoin transaction?
Yes. Paste a transaction ID into the explorer search field to view its status, inputs, outputs, fees, confirmations, and related block information.
Can I search a Bitcoin block?
Yes. Search by block height or block hash to inspect the block’s timestamp, transactions, size, weight, and confirmation position.
Can I search a Bitcoin address?
If address lookup is supported, enter the address exactly as displayed. Bitcoin addresses are public blockchain identifiers and are not proof of personal identity.
Is the BTC21 explorer free?
Yes. The explorer is provided as free public Bitcoin infrastructure and does not require an account or subscription.
Does the explorer use tracking?
BTC21 does not use advertising analytics, tracking scripts, site-set cookies, or user profiling. Read the privacy policy for the precise operational logging policy.
Does using the explorer prove a transaction is final?
No. Confirmations, fee conditions, reorganization risk, and node policy all matter. For important transactions, verify independently using another trusted Bitcoin node or explorer.
Where can I connect to the BTC21 node?
Visit the BTC21 node dashboard for the current Bitcoin Core clearnet and Tor peer connection details.
How should I independently verify important Bitcoin information?
An explorer is a useful view of public blockchain data, not a substitute for your own verification. For protocol background, read the Bitcoin white paper; for hands-on node software, consult the official Bitcoin Core download and verification guide. For a meaningful payment, confirm the recipient address and amount in your wallet before signing, then consider checking it with your own node.
Which wallet tools can work with Bitcoin infrastructure?
BTC21 does not endorse or provide wallet software. Sparrow Wallet's quick-start guide covers public servers, Bitcoin Core, and private Electrum-server connection options. For mobile-wallet education, see the BlueWallet documentation. Download software only from its official project site, verify releases where possible, and never enter recovery words or private keys into a website.