Destroyed bitcoins lacks threshold, like 1 week or month. I think putting 1 week threshold will filter out noise (pool payouts etc).
What I mean, do not include transaction if its input is less than x time old.
PiUK, how hard will be to implement it? What do you think?
Topic: Blockchain.info - Bitcoin Block explorer & Currency Statistics - page 171. (Read 482345 times)
September 17, 2011, 04:20:20 PM
September 17, 2011, 04:01:03 PM
Thanks! You're doing a great work here 
September 17, 2011, 03:55:25 PM
Can you add horizontal line showing BTC supply rate at http://pi.uk.com/bitcoin/charts/bitcoin-days-destroyed?timespan=1year&showDataPoints=false&daysAverageString=7 chart
September 17, 2011, 02:58:40 PM
Finally got round to adding bitcoin days destroyed:
http://pi.uk.com/bitcoin/charts/bitcoin-days-destroyed-cumulative?timespan=180days&showDataPoints=false&daysAverageString=1
Please could someone double check my formula:
I don't know if Abe is calculating it in a similar fashion, but for me it is very slow (takes roughly 10 mins for per 24hour period)
http://pi.uk.com/bitcoin/charts/bitcoin-days-destroyed-cumulative?timespan=180days&showDataPoints=false&daysAverageString=1
Please could someone double check my formula:
Quote
days destroyed for one block =
for every transaction
get the timestamp of the owning block in seconds (t1)
for each input
get the value of the previous output (v1)
get the timestamp of the previous output's block (t2)
daysDestroyed += v1 * ((t1 - t2) / 60 / 60 / 24)
for every transaction
get the timestamp of the owning block in seconds (t1)
for each input
get the value of the previous output (v1)
get the timestamp of the previous output's block (t2)
daysDestroyed += v1 * ((t1 - t2) / 60 / 60 / 24)
I don't know if Abe is calculating it in a similar fashion, but for me it is very slow (takes roughly 10 mins for per 24hour period)
September 17, 2011, 06:14:01 AM
Added search by ip. For example if you lookup eligius's posh pool ip you can see their payouts http://pi.uk.com/bitcoin/ip-address/78.47.187.255. Data coming for blocks soon.
September 13, 2011, 02:45:53 PM
I've added the a list of large recent transactions at http://pi.uk.com/bitcoin/largest-recent-transactions
Also i've rewritten a lot of the bitcoin networking code so my client can now connect to around 2000 nodes. I'm running two clients so have a pretty good chance at intercepting double spends.
Also i've rewritten a lot of the bitcoin networking code so my client can now connect to around 2000 nodes. I'm running two clients so have a pretty good chance at intercepting double spends.
September 09, 2011, 07:25:05 AM
Very well done!
Can you add timestamps to the transaction history of addresses?
Can you add timestamps to the transaction history of addresses?
I've added timestamps to the transaction themselves. Unfortunately due to the way my mysql tables are partitioned it's quite slow to lookup a block from a transaction so I probably won't be able to add timestamps to the transaction history.
I've also added the ip of the node who first relayed a transaction.
September 08, 2011, 11:09:22 AM
Very well done!
Can you add timestamps to the transaction history of addresses?
Can you add timestamps to the transaction history of addresses?
September 08, 2011, 05:48:33 AM
+1 to notion of adding the Bitcoin DD (days destroyed) stat.
One other comment: where do you get $1000 / 2 years for 1 GHash? Is that approximately 50% depreciation per year on a rig which costs $1/MHash/s? Don't disagree with the number so much as interested in how you derived it.
One other comment: where do you get $1000 / 2 years for 1 GHash? Is that approximately 50% depreciation per year on a rig which costs $1/MHash/s? Don't disagree with the number so much as interested in how you derived it.
The average upgrade cycle for gamers is somewhere between 18-24 months (can't find the link where i read it now). After two years old cards won't be worth running compared to the newer competition, there probably is some resale value which isn't calculated in.
Quote
What is the logic used to estimate the transaction volume?
Heres the method. Basically common transactions "1 in ->2 out" it takes the smallest value, ">2 in -> 2 out" it takes the largest, otherwise total all.
public long getActualBTCSent() {
if (blockIsMined()) {
return 0;
//If a transaction transaction has more than two inputs and two outputs we take the largest output
} else if (nInputs >= 2 && nOutputs == 2) {
return Math.max(getOut().get(0).getValue(), getOut().get(1).getValue());
//If a transaction has one input and two outputs we take the smallest output
} else if (nInputs == 1 && nOutputs == 2) {
total = Math.min(getOut().get(0).getValue(), getOut().get(1).getValue());
//None simple transaction total all outputs
} else {
long total = 0;
for (Output output : getOut()) {
total += output.getValue();
}
return total;
}
}
September 08, 2011, 01:34:47 AM
What is the logic used to estimate the transaction volume?
Do you simply always to the smaller 'To' amount as the transaction amount (right of your arrow in the transactions)?
Do you simply always to the smaller 'To' amount as the transaction amount (right of your arrow in the transactions)?
September 07, 2011, 08:08:22 PM
I imagine doing a statistical analysis of the distribution of address balances might reveal useful information. E.g. the time evolution of the median balance size might show how the number of users has changed over time, or the skewness evolution may say something about the rate of diffusion of bitcoins.
It'd also be nice if you made the usable data available for download in csv format so people who don't know how to get it from the block chain, but who are otherwise good at analysing it, can play around with it.
It'd also be nice if you made the usable data available for download in csv format so people who don't know how to get it from the block chain, but who are otherwise good at analysing it, can play around with it.
September 07, 2011, 06:39:11 PM
I've created a site similar to block explorer with a couple of improvements:
The site can be found at:
http://pi.uk.com/bitcoin
All ideas and feedback welcome.
- Includes orphaned blocks which can be used to track possible double spends
- Estimates the actual volume of BTC transacted (not just BTC sent)
The site can be found at:
http://pi.uk.com/bitcoin
All ideas and feedback welcome.
Is the site down? As of 3:38pm PST, this appears to be the case. Wanted to ask a question about the calculation method on transactional volume.
September 07, 2011, 03:48:03 AM
On my todo list:
- Bitcoin days destroyed (thanks Stephen for explaining)
- Solid coni support
- Complete the move to the bitcoind mysql backend and remove rpc polling
- list addresses with the highest balances
+1 to notion of adding the Bitcoin DD (days destroyed) stat.
One other comment: where do you get $1000 / 2 years for 1 GHash? Is that approximately 50% depreciation per year on a rig which costs $1/MHash/s? Don't disagree with the number so much as interested in how you derived it.
September 06, 2011, 09:56:34 PM
Just put the timestamp from the block. That makes more sense because we would get transaction times for all the transactions. Also, a transaction isn't really verified until it has been included in a block.
Maybe just make a note about the time being that of the block instead of the transaction itself.
Maybe just make a note about the time being that of the block instead of the transaction itself.
September 06, 2011, 06:33:53 PM
Feature request: Show date/time on transactions.
The problem with this is transactions don't have a time associated with them when sent. So there are two options:
- Record the time my client receives the transaction (which would mean no times for old transactions)
- Use the timestamp from the block the transaction was included in (no times for unconfirmed transactions)
Which do you think would be best?
September 06, 2011, 11:41:14 AM
Feature request: Show date/time on transactions.
September 06, 2011, 07:34:19 AM
Due to a database bug, I have to re-import the last 2k blocks - some parts won't function for at least an hour.
September 05, 2011, 07:35:02 PM
This is a really cool product. I love your charts from the first page as well as the way you use large arrows to show transactions to and from an address.
Way to go!
Way to go!
September 05, 2011, 06:40:04 PM
Strange, you should be able to. Can you access http://81.187.238.52/bitcoin directly? If not try a traceroute.
By IP address it loads instantly for me.
By the url ( http://pi.uk.com/bitcoin ) I got all sorts of issues but it now back to normal.
Very cool site by the way... good job!
This maybe due to me stopping and starting the server, as i'm still finding bugs. Hopefully things should get more reliable over time.
September 05, 2011, 05:42:28 PM
Strange, you should be able to. Can you access http://81.187.238.52/bitcoin directly? If not try a traceroute.
By IP address it loads instantly for me.
By the url ( http://pi.uk.com/bitcoin ) I got all sorts of issues but it now back to normal.
Very cool site by the way... good job!
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