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Bitcoin Blockchain Browser

License: GNU Affero General Public License v3.0

Ruby 53.72% CoffeeScript 1.08% CSS 1.06% HTML 44.07% JavaScript 0.08%

block_browser's Introduction

BlockBrowser <img src=“https://travis-ci.org/mhanne/block_browser.svg” /> <img src=“https://coveralls.io/repos/mhanne/block_browser/badge.png” />¶ ↑

This application lets you browse the bitcoin blockchain database generated by a bitcoin-ruby node.

A demo instance is running on webbtc.com.

Requirements¶ ↑

ruby 2.1.5
rubygems, bundler
database adapter (postgres recommended)

Blockchain Database¶ ↑

To run your own block_browser instance, you need a bitcoin-ruby-blockchain database. Use bitcoin-ruby-node to build it:

bitcoin_node -n testnet3 -s archive::postgres:/bitcoin

(Or grab a dump from dumps.webbtc.com to speed up the import)

Setup¶ ↑

Copy config/application.yml.sample to config/application.yml and adjust it to your needs.

Then install the required gems

bundle install

Starting the server¶ ↑

And start the server

rails s

Start the websocket server that connects to the bitcoin node and pushes new blocks to clients

rails runner lib/websocket.rb

Collect stats / generate graphs¶ ↑

To collect the statistics used on /stats page

rails runner lib/stats.rb

To generate the graphs for /stats page

rails runner lib/graph.rb

License¶ ↑

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License, version 3, as published by the Free Software Foundation.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

A copy of the license is included in {file:COPYING}, see www.gnu.org/licenses/ for more details.

block_browser's People

Contributors

Stargazers

Watchers

Forkers

bitland soitun alexchien kef phuongnd08 acejam mainoffice4848 pepeanguita tailsjoin salmon4973 borisaka andreasp1994 stormruby youngmight2016 cyberpay amarian12 belavadi westonal

block_browser's Issues

PGP signed responses

Suggested by Jeremy_Rand as a nice-to-have especially for namecoin name lookups.

Fix txs with lock_time but max sequence

Some transactions have a lock_time set, but none of the input sequences is < max.
When the lock_time is also in the block range, it tries to lookup a block that might not yet exist.
See for example: https://test.webbtc.com/tx/2c2c73f5efa19e0fb3c96ba0215d44326405f102c7d207a9d8956f4de6772e92.json

test.namecoin.webbtc.com displays incorrect addresses

jonasbits reported this error at a freenet #namecoin-meeting. The base58 prefix for NMC testnet addresses should be the same as in BTC testnet addresses.
test.namecoin.webbtc.com uses a different prefix. This results in incorrect NMC testnet addresses. Example:
http://testnet.explorer.namecoin.info/tx/b56857fded39d94d7147e9c8643101882f77af1acbf1f3fe077d2f305762bfc2 shows the target address correctly.
https://test.namecoin.webbtc.com/tx/b56857fded39d94d7147e9c8643101882f77af1acbf1f3fe077d2f305762bfc2 shows an incorrect address.

Allow searching for name_hash

webbtc.com is not indexing new blocks

Please have a look. Our service is kind of rely on webbtc.com now

A few transactions missing

A few transactions are being ignored by the block_browser instance at webbtc.com, e.g.

http://namecoin.webbtc.com/tx/9b1eaeca2f5b2bd3b1d0b903b0c92cb3d386812303e46eb9130d4293b19a337b
says "... something went wrong".
The tx does exist, though, see http://namecoin.webbtc.com/address/N6cs2y1k1P3FpVnWE4csBsWDBiuF326gLy
and http://namecoin.webbtc.com/block/e9fcd86cc18c277517d81af100ff5c6dcfcac9c483e642e49819c362af603cba
Also, webbtc cannot find the name related to this tx: http://namecoin.webbtc.com/name/d/epinymtest

http://namecoin.webbtc.com/tx/cf8bcb4e3be8f952fe9800e08866d0f19952068adfa9b27d9342fd95932219e8
says "... something went wrong".
The tx does exist, though, see http://namecoin.webbtc.com/address/NJdUzDw2qvgLMC3H4sJNGcjc5cZNppFxY7
and http://namecoin.webbtc.com/block/7412bc038030f89c2c77313f4e4038a137346b62d352d77bba1a560ad11d730b
Also, http://namecoin.webbtc.com/name/d/meowmix shows only 1 operation. Should be more than one.

Documentation for DB schema

There should be an explanation of the DB schema in the dumps.

Debug arbitrary scripts

Allow users to post their own tx/script to the script debugger.

Websocket updates on all pages

Currently, the websocket is only used to push new blocks to the front page. It should also update other pages accordingly:

block view (add link to next block)
tx view (update spent outputs)
address view (add new transactions)

HTTPS

Enable SSL support, at least with a self-signed certificate and without mandatory redirects

webbtc.com

Sorry maybe this is not the right place to ask this but i think you're in charge of the site http://webbtc.com.

From yesterday the site is not working and i was using your api because is the most completed and easy i found, and i'm curious is the site is gonna be back any soon ?

Thanks and sorry again

JSON requests result in timeout errors

https://webbtc.com/block/0000000000000000056365271b8bd34421ebd9df9efc6a47ef9999de565c8b0a.json
returns
{"error": "Request took too long."}

https://webbtc.com/block/0000000000000000056365271b8bd34421ebd9df9efc6a47ef9999de565c8b0a
works correctly.

Failing to import dumps

A user reported problems when importing a dump.

I ran into an error when trying to load it in both 9.3 and 9.4 postgres. The import runs fine for maybe 5 minutes, then fails on error
 ERROR: missing data for column “type”

Could it be an issue with postgres > 9.1?

Make namecoin rules part of the actual block validation.

Currently, namecoin rules are running "alongside" the regular validations and build the name database essentially separately. They don't trigger validation errors when name rules aren't matched, they just fail to register the name into the DB.

webbtc.com testnet is stuck on block 584577

Likely the node isn't connected to reliable nodes. I suggest testnet-seed.bitcoin.petertodd.org

Error relaying txs

After the change in the CommandHandler API, the relay_tx has been broken.

handle_relay_tx expects the params to be a hash, but they are passed in as an array with the hash as the only item.

Complete address hidden behind search text form

Just a "cosmetical" thing: When searching for an addres, the result page "hide" the address behind the "search" text.
As you can see on screenshot, the address looks "cutted", but if you double click it, the address is shown complete on the webpage

Integration tests

There should be some tests that would catch issues like #7.

Unspent txouts per address

Add /address/<addr>/unspent page/api to list only unspent txouts for that address

SSL for DB dumps

The DB dumps server should be available via https as well.

Move DB dumps

DB dumps are temporarily disabled because disk space is running low... Since there's no reason for the dumps to live on the expensive SSD, they should move to a different host with more space.

Very slight issue in script explainer

I really like the script explainer, but it appears to be missing a definition for OP_1SUB.

http://webbtc.com/script/2c1462024303955581e74ff750a019ed817f682191eb1ef7e3162d91a17cb633:0

You have the one for OP_1ADD, and it seems like a simple change, I did not fully go through the source but I'd imagine this is very trivial for you.

Time should be displayed as UTC

(Possibly related to commit dd0dced)
The "Time" column of the webbtc instance shows the timestamps as CET/CEST. This leads to the confusing situation that it looks as if Namecoin block 254714 was found 46 mins. after block 254715 (they were mined around the switch from CEST to CET).
UTC avoids these problems. Furthermore, UTC makes it easier to match the blockchain data with other events, e.g. a large mining pool going offline/online.

Lookup only block heights for name changes

namecoin.webbtc.com API with http 502 Bad Gateway error

https://webbtc.com/stats.json works but https://namecoin.webbtc.com/stats.json doesn't, for example.
We'd like to do some tests with Jeremy Rand's SPV client which makes use of the namecoin.webbtc.com API, see https://forum.namecoin.org/viewtopic.php?p=16888

error not thrown for non-minimally encoded stack integers

hi, just running the following script in webbtc.com/scripts and its not throwing an error when it should be:

input: ff0080
output: OP_NEGATE OP_NEGATE

the middle 0x00 is redundant, and since OP_NEGATE calls CScriptNum with fRequireMinimal the core client would throw an error here. it would be good to at least put a warning so that others will be aware that this script will not evaluate correctly in production.

also, thanks for the webbtc script tool - i have found it very useful!

cheers,
peter

webbtc.com_database dump

Hi, I was trying to update the Bitcoin blockchain data in my PC with the latest database dump from the website. But the datebase dump hasn't seemed to work for more than a week now. Do you have any idea when it will back on again? Thanks a lot in advance!!

https://webbtc.com/ gateway error

Looks like the site is down?

Unable to post transactions to testnet

I've started getting an error when I post to http://test.webbtc.com/relay_tx.

I get a 200 response code, but with an error JSON result:

{"error":"Connection refused - connect(2)"}