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Author Topic: statistic about unconfirmed transactions ?  (Read 1085 times)
klaus
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June 16, 2011, 09:15:20 PM
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Is there anywhere a statistic about unconfirmed transactions?


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Rob P.
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June 16, 2011, 10:58:52 PM
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Is there anywhere a static about unconfirmed transactions in the blockchain?

Not sure what you're asking.  If a transaction is in the blockchain, it was confirmed.
Are you asking about unconfirmed transactions?

Sounds like you may have an unconfirmed transaction and you're asking about it?

First question:  Did you include a transaction fee on the transaction?

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klaus
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June 17, 2011, 05:29:44 AM
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No, you misunderstood.

I meant a statistic about the number of unconfirmed transactions in the blockchain with a span/time period (eg. Hours, 6 Hours, 12 Hours, Days, Weeks)

its clear that everyone is looking at the exchange rate & difficulty - either its a Trader/Investor or Miner or both. And we all have huge information and chart for both of that.


maybe a chart about the number of unconfirmed transactions brings information up that could be interesting for everyone.

I dont know if the blockchain is either the heart - or the brain - or the stomach - of bitcoin. But it is something.

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titeuf_87
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June 17, 2011, 08:30:08 AM
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Unconfirmed transactions, by definition, don't appear in the blockchain, as otherwise they would be confirmed.

If you want to see a list of such transactions, bitcoincharts provide one.

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klaus
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June 17, 2011, 08:44:54 AM
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everything you see is the amout of unconfirmed transactions at this second. No Graph over the time or something like that.

sorry, i think 'blockchain' was the wrong. i meant transaction - chain - if you can call it like that.

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coel
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June 17, 2011, 10:10:06 AM
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What kind of transactions are you talking about? As you said something about exchange rates, I think that you don't really mean Bitcoin's own transactions that get incorprated into the blockchain at some point.

There are Bitcoin's own transactions. One of those is generated by the client when you send any amount of BTC to another Bitcoin address. This transaction is spread on the network, and eventually it will be put into a block (which is in turn part of the block chain). At this point, the transaction actually becomes valid, i.e. the BTC you sent now belong to the other Bitcoin address. After some more blocks have been generated, it becomes more and more improbable that there was an attack against the network with huge amounts of porcessing power in order to forge bogus transactions, so after the sixth block, the client shows a transaction as confirmed.

This is what the others were talking about.

I think, though, that you are not really thinking of these bitcoin transactions, but of transactions on Bitcoin exchanges like bitmarket.eu, where BTC is traded for fiat currency. I don't know how this is handled at other exchanges, but yes, on bitmarket.eu a transaction will only show up in the list of transactions when the seller has received the money and has released the BTC to the buyer. If bank accounts, not Paypal, are used for the trade, it can take several days until the transaction actually shows up, which makes charts of today's trades biased as they only show Paypal transactions.

Is this what you were thinking of?

I'd also like to see what trades are going on today, regardless of whether they might be cancelled later or not. On the other hand, this could easily be used for chart manipulation, as anybody could pretend to buy 10000 BTC for € 50,– each and never pay. The exchange rate would skyrocket although those BTC were never actually traded—which is probably the reason why transactions are only shown when they were really completed.

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Rob P.
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June 17, 2011, 07:02:16 PM
 #7

everything you see is the amout of unconfirmed transactions at this second. No Graph over the time or something like that.

sorry, i think 'blockchain' was the wrong. i meant transaction - chain - if you can call it like that.

As provided above, there are 503 unconfirmed transactions (when I wrote this) (meaning they were announced on the network, but have not been placed in the block chain).  You can see them all here:  http://bitcoincharts.com/bitcoin/

If you wanted to know how old each of them are, you'd have to write a script.  However, transactions age, as transactions age, their priority to be added to the block chain increases, until they are finally added.  Transactions with a transaction fee have a higher priority to be added.

The oldest transaction currently waiting is 10 days old, but that's because one of the inputs (from) is unconfirmed, probably because this transaction originated from another unconfirmed transaction (which is true):

2011-06-06 14:41:16 c92b02348641084f82662f2a7f8d8840bc5421b1a1dfad1cdb52acc263ecd0a7
This is a low priority transaction.
This transaction includes 0.01000000 BTC as fee.
size: 224 bytes
priority: 0
input: 0.09000000 BTC
0.09000000 BTC from unconfirmed 2bcde2249216ef17b015f05fb05246add6b1fa06e5709dc86ba13c9938a6f64a:0 (1NEq1aCE4PVdWYzkjRqBPKm538FrvLpZb6)
output: 0.08000000 BTC
0.08000000 BTC to 1JwDpfZnKrw54pKJvV3SXiorLNSPVWPht


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