Bitcoin Block Explorer - page 2. | Bitcointalksearch.org

theymos

administrator

Activity: 5222

Merit: 13027

Quote from: giszmo on February 19, 2013, 10:52:36 AM

Hey BBE was great. It was the first and is now totally overrun by blockchain.info. I hope that Liraz Siri is genuinely interested in competing with blockchain.info so we don't slide into a monopoly situation.

Yes, that's one reason I'm selling it. Even if I devoted all of my time to BBE, I doubt I could compete with piuk. He's superhuman!

giszmo

legendary

Activity: 1862

Merit: 1105

WalletScrutiny.com

Hey BBE was great. It was the first and is now totally overrun by blockchain.info. I hope that Liraz Siri is genuinely interested in competing with blockchain.info so we don't slide into a monopoly situation.

theymos

administrator

Activity: 5222

Merit: 13027

This is not quite finalized yet, but I am planning on selling Bitcoin Block Explorer to Liraz Siri. I really would have liked to have kept running it, but as you've undoubtedly noticed I have not been able to add any new features to BBE or even fix bugs (such as the long-broken search feature) due to lack of time. Liraz seems trustworthy and genuinely interested in the project, so I feel pretty good about selling the site to him.

Previously I said that access logs would not be kept for longer than 30 days. I will no longer have control over that, though I will make sure that logs from before the sale are deleted.

Thanks for your support.

theymos

administrator

Activity: 5222

Merit: 13027

Quote from: Stephen Gornick on November 03, 2012, 03:45:56 PM

Looks like a bug:
- https://blockexplorer.com/q/bcperblock/209999

Returns:
25.00000000

Should be 50. The block with block height 210000 is the first at 25.

Fixed. I think this happened because I wrote that page a very long time ago when Bitcoin's getblockcount actually returned a count of the total number of blocks instead of the max block number.

lucb1e

newbie

Activity: 47

Merit: 0

Quote from: TTBit on November 09, 2010, 10:52:44 PM

I can see how my transactions are not 100% anonymous.

Why aren't they anonymous? I entered a random address of mine (which I have received btc on) to view the details, but there was nothing that I didn't already know was public (the address, amount and time).

Stephen Gornick

legendary

Activity: 2506

Merit: 1010

Looks like a bug:
- https://blockexplorer.com/q/bcperblock/209999

Returns:
25.00000000

Should be 50. The block with block height 210000 is the first at 25.

theymos

administrator

Activity: 5222

Merit: 13027

The network provider for the server reports that there will be an outage from 5 PM to 6 PM Central US time on the 20^th for maintenance.

I don't know what you would do with this information, but I thought I'd pass it on...

John Tobey

hero member

Activity: 481

Merit: 529

Quote from: theymos on June 11, 2011, 12:51:28 PM

The value returned with the SQL is now actually less than the "ideal" number, as some miners have thrown away block reward BTC. I might make a /q page for it eventually, as the difference is interesting.

Abe now supports totalbc but reports the measured number (e.g., 7017349.98999999) rather than the "ideal" value BBE gives. I do not plan to implement totalbc for future blocks.

http://abe.john-edwin-tobey.org/chain/Bitcoin/q/totalbc

lfm

full member

Activity: 196

Merit: 104

Quote from: theymos on June 11, 2011, 12:51:28 PM

Quote from: bitcool on June 11, 2011, 12:10:52 PM

Is this the same method being used on you site?
http://blockexplorer.com/q/totalbc

I hope you can consider providing these service to function as an early warning system for the bitcoin network.

It's not.

The value returned with the SQL is now actually less than the "ideal" number, as some miners have thrown away block reward BTC. I might make a /q page for it eventually, as the difference is interesting.

It only one block (#124724) that doesn't balance this way so far. He was intending to throw away 0.00000001 BTC but accidentally also dropped a fee of 0.01 BTC so he made 0.01000001 BTC in all disappear. Of course its not really any different effect than someone losing their wallet.dat file. The value is gone either way.
For reporting purposes it could be credited to a special "lost" account address.

theymos

administrator

Activity: 5222

Merit: 13027

Quote from: bitcool on June 11, 2011, 12:10:52 PM

Is this the same method being used on you site?
http://blockexplorer.com/q/totalbc

I hope you can consider providing these service to function as an early warning system for the bitcoin network.

It's not.

The value returned with the SQL is now actually less than the "ideal" number, as some miners have thrown away block reward BTC. I might make a /q page for it eventually, as the difference is interesting.

bitcool

legendary

Activity: 1441

Merit: 1000

Live and enjoy experiments

Quote from: theymos on February 08, 2011, 02:32:28 PM

Quote from: bitcool on February 08, 2011, 11:18:42 AM

Thanks. Looks this is what I've been looking for. I don't quite understand your table definition though. Does "WHERE inputs IS NULL" restrict result only to coin-generation transactions?

It eliminates spent outputs. The total value of unspent outputs should equal the total BTC in circulation (as it does).

The LEFT JOIN matches each output with the input that spent it. If inputs IS NULL for a row, then the output is unspent.

I intend to release my getblock-to-SQL script at some point in the far future, since it allows easy access to stats like this. It's much too messy right now, though.

Is this the same method being used on you site?
http://blockexplorer.com/q/totalbc

I hope you can consider providing these service to function as an early warning system for the bitcoin network.

theymos

administrator

Activity: 5222

Merit: 13027

Quote from: cypherdoc on June 09, 2011, 12:08:31 PM

that is awesome!

theymos, i assume ur monitoring this regularly (several times a day?) and would let us all know?

I am not monitoring it. BBE will automatically stop updating if 5 or more blocks are replaced, though, and I will know about this event. (There is not yet any warning on the main BBE page after this happens, though I'll probably add one sometime in the future.)

Quote from: TraderTimm on June 09, 2011, 12:14:31 PM

This is extremely useful. All it needs is a dedicated website "Block Watch" and a alert level associated with it

Thank you for providing this.

You can make such a site, polling my page. Don't increase the alert level at all for a single replaced block. Increase it in an exponential way for each replaced block after one.

Polling quirk: if 5 or more blocks are replaced, the reorglog page will not log all five replacements. Instead, one replacement will be logged and then the last line will be:

Code:

Reorg limit: system shutdown

The alert level should increase when BBE is down, since it would be easy for an attacker to take down my site. However, my uptime has not been incredible in the past, so it should maybe only increase slowly in such a case...

Quote from: joan on June 09, 2011, 12:27:22 PM

Super !
Maybe display them in reverse chronological so the most recent are on top ?

I don't feel like redoing all of my testing of this to reverse the order. Logs are traditionally in chronological order, anyway.

cypherdoc

legendary

Activity: 1764

Merit: 1002

Quote from: TraderTimm on June 09, 2011, 12:14:31 PM

All it needs is a dedicated website "Block Watch" and a alert level associated with it

Now THAT is a good idea. Even clever name.

joan

jr. member

Activity: 56

Merit: 1

Super !
Maybe display them in reverse chronological so the most recent are on top ?

TraderTimm

legendary

Activity: 2408

Merit: 1121

Quote from: theymos on June 09, 2011, 09:06:14 AM

Some people have been concerned about powerful pools with >50% of the CPU power, so I added a log of reorg events:
http://blockexplorer.com/q/reorglog

If someone with a lot of CPU tries to reverse transactions, it will appear in that log as several sequential blocks being replaced. A few non-sequential replacements now and then are normal.

This is extremely useful. All it needs is a dedicated website "Block Watch" and a alert level associated with it

Thank you for providing this.

davout

legendary

Activity: 1372

Merit: 1007

1davout

He'd sell his coins first but then yes, he'd let us all know

cypherdoc

legendary

Activity: 1764

Merit: 1002

that is awesome!

theymos, i assume ur monitoring this regularly (several times a day?) and would let us all know?

davout

legendary

Activity: 1372

Merit: 1007

1davout

Quote from: theymos on June 09, 2011, 09:06:14 AM

Some people have been concerned about powerful pools with >50% of the CPU power, so I added a log of reorg events:
http://blockexplorer.com/q/reorglog

If someone with a lot of CPU tries to reverse transactions, it will appear in that log as several sequential blocks being replaced. A few non-sequential replacements now and then are normal.

That's just awesome. Thank you !

theymos

administrator

Activity: 5222

Merit: 13027

Some people have been concerned about powerful pools with >50% of the CPU power, so I added a log of reorg events:
http://blockexplorer.com/q/reorglog

If someone with a lot of CPU tries to reverse transactions, it will appear in that log as several sequential blocks being replaced. A few non-sequential replacements now and then are normal.

lfm

full member

Activity: 196

Merit: 104

Quote from: MoonShadow on November 12, 2010, 08:00:40 PM

How does what work? Fractional reserve or auditing them with block explorer?

If you mean, how does one audit your addresses with block explorer, simply check the addresses that you have to make sure that there have been no transactions that you didn't do yourself and that the address balances add up to what you should have. If you have more than what you should have, then the website is sharing accounts among users and tracking the individual values internally. Which would allow the website owner to loan out portions of the pooled balance, much like how fractional reserve banks do now, since they don't actually keep your money on hand. If there has been any transactions in or out of said accounts that you didn't perform, then that means the website owner is using member accounts to "float" his own activities.

EDIT: Except I can't actually see all of the addresses used in my Mybitcoin.com account. That's going to be something I need to ask for.

I don't think mybitcoin.com really works the way you think it does. I think it actually is just one big pool so far as bitcoin is concerned. mybitcoin.com then keeps its own database of accounts. afaik

Topic: Bitcoin Block Explorer - page 2. (Read 29599 times)