blockchair / blockchair.support

Public repository for issues and feature requests. Submit your favorite bug!

Blockchair.com

This is our public repository for issues and feature requests. Please feel free to submit any ideas as well as bugs using the "New Issue" button!

• API documentation and changelog: https://github.com/Blockchair/Blockchair.Support/blob/master/API.md
• Direct SQL Access documentation: https://github.com/Blockchair/Blockchair.Support/blob/master/SQL.md
• Questions regarding a payment? Please refer to our FAQ first: https://github.com/Blockchair/Blockchair.Support/blob/master/FAQ_PAYMENTS.md

Additional contacts:

• E-mail: [email protected]
• Twitter: @Blockchair

blockchair.support's Issues

Real-time updated version of bitcoin days destroyed / BTC price chart

Is it possible to see a real-time updated version of this chart?

https://pbs.twimg.com/media/C1uuo7wXUAI5r35.jpg

Recognize BCH p2pool blocks

If a block's coinbase transaction includes a payout to qrgrmfhu5wgpvmgzp0sw0s52erx8pavyqvkhmltum6 (1Kz5QaUPDtKrj5SqW5tFkn7WZh8LmQaQi4), then that block was mined by p2pool.

https://forum.bitcoin.com/pools/p2pool-decentralized-dos-resistant-trustless-censorship-resistant-pool-t69932.html

Example: https://blockchair.com/bitcoin-cash/transaction/397077e4a41e51f963cd1704ba252e0b99359cc82ab50b6aa6df804dd49df4a2

The 1Kz5QaUPDtKrj5SqW5tFkn7WZh8LmQaQi4 address also indicates a p2pool block for BTC. On Litecoin, it's the same pubkey, but a different address (LeD2fnnDJYZuyt8zgDsZ2oBGmuVcxGKCLd).

Easily search coinbase_data on selection of part of the string

By providing a small context menu when selecting a part of the coinbase so users can easily search for blocks from the same (unidentified) miner.

For example:
https://blockchair.com/bitcoin-cash/block/514209
When selecting "coingeek" in the coinbase yield a small search button near the selection directing to:
https://blockchair.com/bitcoin-cash/blocks?q=coinbase_data(~coingeek)

Like this implementation:
http://idorecall.github.io/selection-menu/

New feature: Add a sort/search term for fee %

It seems like many wallets do a really bad job at computing fees. People are doing fairly small transactions with huge fees. It would be interesting to sort the memory pool based on fee as a percentage of the total amount moved.

Time ago / local time in blocks view

It would be really cool to see times in local (browser) time or at least "time ago", like "15 minutes ago" in the table view of blocks when hovering over time (like title="" tooltip). Currently it's quite hard to mentally convert UTC time to local time in the head.

https://blockchair.com/bitcoin-cash/blocks

Thanks for the blockchair! It's awesome!

Where can I see Mempool size?

Mempool is heating up on BTC, but couldn's see info about Mempool size. Please direct me to that info!

Search query for specific chain only

Please make it possible to run a search query for a specific chain.

This seems to work: https://blockchair.com/bitcoin-cash/search?q=9b0a7752fe4de0678a7f499cc60f51827528abdeb05e72328d3e40441ff28c67 , however it still seems to search on the "Bitcoin" chain and shows results ("No results") under "/ Bitcoin /".

Confirmations showing negative value

The Confirmations field is showing a negative value for BCH transactions e.g

https://blockchair.com/bitcoin-cash/transaction/bcff71a6cbf3c05d2df4529597890ca2a0d1c7e53b4d6a6dfd86dc42c24eb5b1

Blockchair is awesome! Is it possible get API access somehow?

As an online blockchain explorer, Blockchair is incredible!

Would it also be possible to get API access, i.e. to retrieve data like address or transaction details and such, through an API interface?

Basically, instead of outputting the data in a fancy web design format, just output the data in JSON or something.

Document what may be put into the search box

On https://blockchair.com/ we see

Examples: Hello World The biggest blocks ~$1M transactions 1dice8EMZmqKvrGE4Qc9bUFf9PX3xaYDp satoshi.id Blocks mined by Slush Tx paid over $5 in fees Addresses starting with 1dice Marry me BIP 100 blocks Tx destroyed the most coindays Mempool transactions Happy Birthday Blocks collected over 2.5 BTC in fees Bailout Coinbase transactions 123456

Maybe add an advanced search box saying just what one might enter. Public keys? Private keys?!?!?
Without any guidance anybody will throw anything into that search box.

landing page "Mempool" stats not updating

At the bottom of https://blockchair.com there are two lines, one for "Bitcoin Mempool" and another for "Bitcoin Cash Mempool".

At the time of this writing, all values are showing "0".

Tested on:

• Firefox 54.0 (64-bit) for Linux Mint 18
• Chrome Version 59.0.3071.115 (Official Build) (64-bit) also on Linux Mint 18

QR Code on Website

You need to add a QR code feature to the website. Literally impractical to make BCH payments without an easy way to display QR codes. Please add this ASAP!

FYI: BCC = BitConnect

Please don't use the confusing "BCC" symbol to attempt to mean "BitCoin Cash". Yes, I understand that on https://www.bitcoincash.org/ they recommend using the "BCC" symbol for some dumb reason. "Recommended ticker symbol: BCC or XBC"

But most people already know that "BCC" has meant BitConnect Coins for a longer time.

See: https://bitconnect.co/

1 BCC = $84.0257

I recommend that you please be consistent with all the other exchanges and call BitCoinCash "BCH" instead of "BCC" on your blockchair.com website, but please never use "BCC" anywhere unless you truly are trying to reference the crappy BitConnect Coins.

Thank you!

Information about the version of clients used by the miners.

Is it possible to get information of regarding the version of bitcoin software(typically user-agent string in the 'version' message) .
It would be great to check which version of the consensus rules are used to mine a particular block.However I'm not sure about how this info can be extracted,as this is not part of the blockheader and is purely from the p2p layer.

Weird priority fraction

Was this intended:

https://blockchair.com/bitcoin/transaction/3857e01084275a0259efee900b30ecd985a81b7e8a30ed53a5853ff9a73d670e

Document the output format

Document the output format,

         "pl_usd" : 0,
         "plu_usd" : -285.97254,
         "rate" : "1657.4",

etc.
pl, plu, etc.: New users can't guess the exact meanings. Also mention if those rates were then, or now.

Can't tell how many confirmations?

Consider the following API call:

https://api.blockchair.com/bitcoin/outputs?q=recipient(bc1q74a2fq5phr4ktfdu35gexmkjvnys5hwhfr73uk)

There doesn't appear to be a way to determine how many confirmations have occurred for this output. Most block explorer APIs provide a field that contains a confirm count.

Right now, as a workaround, I'm parsing the 'time' field of your result and calculating the number of minutes that have passed since then. From that, I can divide by 10, since each confirmation takes around 10 minutes, and obtain an approximation of how many confirmations have occurred. But this isn't particularly accurate.

Is there some field that I'm missing?

Best,

Festus

Bug in number of confirmations display

Just wanted to report a small bug. I was watching for confirmations on a transaction and it was up to only 4 or 5 confirmations (was going slow because the fee was lower than intended). I refreshed and suddenly the count went from 4 or 5 confirmations to "-504002 confirmations". (Note that the "Included in block" number was 504003.)

Screen grab attached. Transactions # is 8108f98af9d3d34d576091665b70d9469a6de9fa6c40788f99ed9569cbde623a if you want to see it (but I suspect it'll go away by the time you see this as more confirmations come in).

Note that if I check it in another BCH explorer, it just shows 6 confirmations right now -- looks normal.

Just wanted to let you know. Thanks.

Bitcoin Cash node stuck

Hi, it seems like you Bitcoin Cash node is stuck. It hasn't received any blocks since 2017-08-29 23:59 UTC while other sites continue to show new blocks.

Bitcoin Mempool Transactions missing

My node running Satoshi:0.14.2 currently (block height 480326) shows 9889 transactions in the mempool, but https://blockchair.com/bitcoin/mempool/transactions only shows 7206.

I'm not sure what filter rules you are using, but I would assume it should be the same as bitcoin core out of the box.

(It looks like you have an age limit of about 2 days, but with the current state of the mempool transactions are getting stuck in the mempool for much longer then that)

Invalid value for coindays destroyed in BCH block 498324

I noticed an invalid value for the coindays destroyed property.

The value seems to be -2.4000300925926e-7 (link) which of course is impossible.

Not that big of an issue but something you might want to look into.

Cheers

SegWit support

Blockchair.com works very well as it is.
Now, if you had SegWit stats like number of SegWit tx, witness size in KB, total serialized block size in KB, total block weight etc., it would be even better!
Thanks for the good work.

BTG support?

Bitcoin Gold?

On API.md add a brief description after each item

On API.md add a brief description after each item:

https://api.blockchair.com/bitcoin/mempool/transactions?{query}

Mention: Shows this and that about ...

https://api.blockchair.com/bitcoin/mempool/outputs?{query}

Mention: Shows some... about ...

https://api.blockchair.com/bitcoin/dashboards/address/{address}

Mention: Shows all the $$ in the address, in US and native units.

remove public address from url

I have searched and found that all block explorers show public address in url. For privacy (url=metadata), can you please remove the address from url?

Transaction confirmations

Is there a way to see the number of confirmations a transaction has? If not I think that would be valuable to have.

Different values for BCH address balance

Hi, there's something wrong with total received for BCH address:

At this URL the "total received" amount is: 0.01110000 BCH --- WRONG
https://blockchair.com/search?q=qz6x7qem2e8z3s0vgul7vuxl9vwvt4nt2yy44eyrzk

While at this one, for the same address, the "total received" amount is 0.00370000 BCH --- CORRECT
https://blockchair.com/bitcoin-cash/address/qz6x7qem2e8z3s0vgul7vuxl9vwvt4nt2yy44eyrzk

No blocks since hours, blockchain.info has them

Pretty self-explanatory

"Time since last block" field in Blocks view

To be able to easily see block times, it would be nice to have a "Time since last block" field option in the Blocks page.
Thanks!

/address API doesn't work

getting

<…>

Block export does not contain last block

When using the exporting function the generated file does not contain the latest block (at least not for BCH blocks, haven't checked BTC).

How to reproduce: create a filter with block height >= ${recent block}, click export and compare results.

Is there a way to push a raw transaction through the API?

Does the API provide a way to push a raw transaction (expressed as hex) to the Bitcoin network?

Slow to index the newest block

The website bip100.tech links to blockchair to display block details. However, sometimes clicking on the newest block displayed in a table there will result in

Sorry, the page you are looking for could not be found.

Is blockchair slow at indexing new blocks on the network?

export data is wrong

When I export data of fee_total_usd and fee_per_kb_usd, the data is wrong. The fee_total_usd is 89363 and fee_per_kb_usd is 15550 when id is 483659. But in the website, The fee_total_usd is 4,985.12 and fee_per_kb_usd is 5.92 when id is 483659.

BCC Blocks page not reflecting new blocks

https://blockchair.com/bitcoin-cash/blocks shows 478565 as most recent height, whereas the footer shows Best block: #478566

Getting 500 errors on the block explorer

XMLHttpRequest cannot load https://api.blockchair.com/bitcoin-cash/blocks?next=481861&u=ff824a6f-1517-4fa6-86c7-9c4fb38f693e. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://blockchair.com' is therefore not allowed access. The response had HTTP status code 500.

Different types of data as a result of an address request

Hi! Why does your api return data in different types?

In the first case, sum_value_unspent is of type string:

https://api.blockchair.com/bitcoin/dashboards/address/1CK6KHY6MHgYvmRQ4PAafKYDrg1ejbH1cE

{
   "data":[
      {
         "sum_value":"18990493534363",
         "sum_value_usd":462672651.4252,
         "sum_spending_value_usd":461094315.7303,
         "max_time_receiving":"2018-02-17 14:38:28",
         "max_time_spending":"2018-02-17 12:08:17",
         "min_time_receiving":"2014-09-27 11:19:33",
         "count_total":"10162",
         "rate":"10028.3",
         "sum_value_unspent":"25996691329",
         "sum_value_unspent_usd":2483116.625,
         "plu_usd":123909.57154611,
         "count_unspent":"20",
         "min_time_spending":"2014-09-27 15:03:41",
         "pl_usd":904780.9301,
         "receiving_activity":[
            {
               "year":2014,
               "month":9,
               "value":"18"
            }
         ],
         "spending_activity":[
            {
               "year":2014,
               "month":9,
               "value":"12"
            }
         ]
      }
   ],
   "rows":1,
   "limit":1,
   "time":2.2678110599518,
   "cache":-2,
   "source":"AW"
}

And in the second case sum_value_unspent is of type number:

https://api.blockchair.com/bitcoin/dashboards/address/1N1mgsmtBN1F9GKRTwt3p1Mo2Cquh9zyLj

{
   "data":[
      {
         "rate":"10028.3",
         "sum_value_unspent":0,
         "sum_value_unspent_usd":0,
         "count_unspent":0,
         "plu_usd":0,
         "min_time_spending":"0000-00-00 00:00:00",
         "pl_usd":0,
         "receiving_activity":[],
         "spending_activity":[]
      }
   ],
   "rows":1,
   "limit":1,
   "time":2.105740070343,
   "cache":-2,
   "source":"AW"
}

I am currently developing a package in the Go language, and this api behavior creates large type issues when parsing json.

Is there a way to get the entire UTXO from bitcoin cash?

If there is no single query. how can i do this programmatically? If blockchair is inadequate for this. Where can i go?

Thanks.

API Call Result Count

Am I missing something or do the API call's only return the first 10 results? Is there a way to change this?

Pre-BCH fork addresses are showing tripple their "total received" amount.

Any address that had a balance before the BCH fork, shows a Total received amount that is 3 times too large.

This is on both the /search result page and /address page, maybe others too.

For example, an address that received a balance of 1 BTC before the BCH fork will show a Total received of 3.

API Access-Control-Allow-Origin

I was hoping to use the API to get an address balance in a browser extension, but if I'm not currently browsing blockchair.com I get this in console:

Failed to load https://api.blockchair.com/bitcoin-cash/dashboards/address/xxx: The 'Access-Control-Allow-Origin' header has a value 'https://blockchair.com' that is not equal to the supplied origin. Origin 'chrome-extension://dnoepokpijbdefeceopfloblpcefdokn' is therefore not allowed access.

Any chance you can set Access-Control-Allow-Origin to * ?

Fonts are very hard to read

I'm using Windows 10, Chrome, and especially the smaller fonts are very hard to read.

Here is a screenshot, taken from https://blockchair.com/bitcoin/transaction/423c475a4418d4be9a33e5486021ce9f37942ea0e912cbfdda68cfa6de7c2bc7

See especially the Inputs & Outputs:

It looks a bit better in Edge and Firefox, but still hard to read.

BTC on BCC/BCH

https://blockchair.com/bitcoin-cash/transaction/
use BTC

Input total	BTC	103.29 USD
Output total	BTC	103.28 USD
Fee	BTC	0.01 USD
Fee per kB	BTC	0.00 USD

Same at https://blockchair.com/bitcoin-cash/blocks

Rexpected BCC ot BCH.

API query limit parameter

Cool project!
Is there any way to set limit api query size? By default it is 10. Can't find where it can be changed?

Queries with character / in them fail

A query with a dash in it will display the error

Whoops, looks like something went wrong.

For example, searching for blocks voting for 8MB with BIP100 won't work: /BIP100/B8/. Supporting dash is useful because several proposals use strings with dashes. More examples: /EB1/AD6/, /P2SH/ /NOP2SH/.

UTF8 characters also don't seem to be supported, so it's not possible to find this block with the query 💩

A minimal fix could be to display what characters are allowed in the query string.

Transactions quantity and list of BCH aren't resetted with every block

Seems that the BCH transactions mempool aren't resetted when a new block is mined so it shows a lot of them pending...

Save shown fields config in browser

Is there an option to save your own field configuration for the tables in the browser so that you don't have to configure them again on every reload?

If not I would love that feature!

Bitcoin Cash : cryptocurrency for fees and rewards should be in BCH

While exploring Bitcoin Cash blocks and transactions it appears that every amount/fee/reward is displayed as BTC instead of BCC or BCH.
Also the USD equivalent is wrong.

Is it possible for users to choose what address format to use with Bitcoin Cash?

Right now with Bitcoin Cash I can only see cash addr, can there not be a config button where I can choose to see the original address format? I use a lot of vanity gen addresses and now I can't see those anymore.

API always returns nonce value as 0

https://api.blockchair.com/bitcoin/blocks

For each block except the latest:
"nonce":0