Blockchain Explorer | learn me a bitcoin

Memory Pool

81,300 transactions

28.33 vMB

Show Random Selection

Max Size: 170/200 MB

Candidate Block

Height	Target	Expected	Size	Txs	Avg Fee Rate AFR
849,531	000000000000000000035d250000000000000000000000000000000000000000	16 mins, 54 secs ago	1.00 vMB	3,066	19

Show Transactions

Blockchain

Tip: 849,530 (818,732 blocks away) ⇈

Next 10 blocks ↑

Height	Block Hash	Time (UTC)	Txs
30,798 30,798	0000000058fab5601b3cf7807d13da134ae061f5c7a6adc8cb42e3f8aaa4345e	21 Dec 2009, 03:20	1
30,797 30,797	000000002a9ba67aee43d4110b669c966d3bde087af1e9eef7589dae101a8637	21 Dec 2009, 03:20	1
30,796 30,796	0000000027f1642e576eb6eb488aa7ef47016ce7d667a57ca03a282340bc1317	21 Dec 2009, 03:08	1
30,795 30,795	00000000535802f1a22be59640f40a42c203e2f5af10cc40bfdf36cab8dc7c1d	21 Dec 2009, 03:03	1
30,794 30,794	00000000b831ba8324df7ae5e4f3f6cf581646b8acaa41ae5d875d0ae0c681fe	21 Dec 2009, 03:02	1
30,793 30,793	00000000ecc59f9d4e68a8adabab78236b8ea3f33b3baf0dbde6de0aef26b1d1	21 Dec 2009, 02:49	1
30,792 30,792	00000000e8671381e829c97b3ff2007e8437356b9ba64800e278b06d704a7ede	21 Dec 2009, 02:48	1
30,791 30,791	00000000e456b2f871fa30e1858f6952e51a2c751400dca59ed57cb1b16510d6	21 Dec 2009, 02:48	1
30,790 30,790	00000000fdadaec9d66c693557f2a9a40246c430162c18d32951a437e726fd55	21 Dec 2009, 02:39	1
30,789 30,789	000000002fc3b06f11f22613e3a861c7966d46fc186728d78f6bf4a919291998	21 Dec 2009, 02:38	1
30,788 30,788	00000000e0297732f6e99a929778d4fae6f3c4e17e74b16b5c4195e9dd358870	21 Dec 2009, 02:31	1
30,787 30,787	00000000130b61111494a3f148f4640072d02ede7ff0ed7799281caaf35e039f	21 Dec 2009, 01:58	1
30,786 30,786	000000009514d2d8e883fd39797b37d932652a3521e4aac34f832ade25a9ccb2	21 Dec 2009, 01:56	1
30,785 30,785	000000002d31b2ddbeca3b7215204e2cf95b04042e64f2a37e2fc50b46a6e712	21 Dec 2009, 01:52	1
30,784 30,784	00000000fb91ad624480d1aa237bd1241eac7867bc9e8ea0a87fa74481eb8767	21 Dec 2009, 01:46	1
30,783 30,783	00000000e90832cd7aaef3b389341b2f6cb38e9c94dcbc9332f5bb35a4cb160f	21 Dec 2009, 01:44	1
30,782 30,782	00000000e4eb8eb70f06522d3bc5ecd9e77f7906ea0819667a43a5601730fe3b	21 Dec 2009, 01:41	1
30,781 30,781	0000000043eccf9c0243ea1d9cd0c80bd89300c0b16609521498a840279eda34	21 Dec 2009, 01:34	1
30,780 30,780	00000000ef66d86bb6de60cdf5ff05800fd364c942507b9bb1c786afbb3a31f9	21 Dec 2009, 01:31	1
30,779 30,779	000000001cf49ba3ce86ded34ba42ad3aa43799b73d1a88601aa54d1c4c9cb3b	21 Dec 2009, 01:26	1
30,778 30,778	0000000091592cd0cadc549e189767e38e5bd7cfab052dbca5730469bae10eb5	21 Dec 2009, 01:02	1

Previous 10 blocks ↓

Total Size: 660.61 GB

Node Information

IP: 46.19.137.74
Port: 8333
Version: 270000
Subversion: /Satoshi:27.0.0/

Uptime: 2 days, 20 hours, 14 minutes
Connections: 10 outgoing, 91 incoming
Data Transfer: 485.51 GB sent, 2.38 GB received

Notes

This page updates every 5 seconds.
Use the search bar at the top of the website to search for transactions and blocks.
Memory pool size (vMB) is the total size of the raw transaction data (not including metadata).
Block size (MB) does not include block header, tx count, or coinbase transaction.
Fee rates are in sats/vbyte.

AFR = Average Fee Rate

About

This is a basic blockchain explorer for exploring Bitcoin data.

The main features of this explorer are:

Basic. The data is laid out to try and represent the structure of raw transactions and blocks.
Fast. I've made the pages load as fast as I can. If you can't be pretty, you might as well be fast.

So it's pretty basic, but I think you can learn a lot about how Bitcoin works by browsing the raw data and seeing how it all connects together.

Data

The data on this explorer comes from the following sources:

Bitcoin Core. This is used to get raw transaction and block data. This is retrieved via simple bitcoin-cli commands.
Electrum Server. This is used to get information about address balances. Bitcoin Core doesn't keep track of addresses, so you need a separate database running alongside it to store address balances and activity. This information is retrieved using the Electrum protocol.
Electrum Server is what wallets like Electrum and Sparrow Wallet use.

Limitations

There are a couple of limitations to this explorer:

Address history limit. This explorer will only show the most recent 500 outputs locked to an address.

This is due to the fact that the data for each output needs to be retrieved from Bitcoin Core individually, so showing all of the outputs at some addresses would be extremely slow (as some addresses have thousands of outputs).

However, the address balances are correct. It's just there's a limitation on the number of outputs displayed at each address.

The explorer will also not show the outputs for extremely busy addresses (i.e. involved in over 125,000 transactions).
Cannot move forward through transactions. A single transaction from Bitcoin Core doesn't include information about whether the outputs have been spent (or which transactions spent them), so whilst you can move backwards through the inputs, you cannot move forwards through the outputs.

So if you're looking for a more advanced explorer that offers these features, try mempool.space instead.

But if you hate beautiful websites and only want to dig around raw data quickly, this explorer should do the job.

Privacy

This blockchain explorer does not track anything.

I do not collect IP addresses or keep track of requests. Nor do I use any third-party analytics or tracking software.

However, this blockchain explorer is not open-source, so you have to trust me on this one.

Bitcoin Core Explorer

If you want to explore blockchain data without having to trust anyone with your privacy, the simplest way to do this is to run your own Bitcoin Core node and run bitcoin-cli commands.

The two most useful commands are:

bitcoin-cli getrawtransaction <txid>
bitcoin-cli getblock <hash>

You will need to add txindex=1 to your bitcoin.conf configuration file to be able to query for all transactions.
Use bitcoin-cli help to a complete list of commands.
Use bitcoin-cli help <command name> to see detailed information about a command and all the available options.

Alternatively, you can also run your own self-hosted explorer such as mempool or btc-rpc-explorer.