Blockchain.info - Bitcoin Block explorer & Currency Statistics

[Stephen Gornick]

When i parse the JSON data for blockchain output volume I am seeing a couple of gaps:

  - http://blockchain.info/charts/output-volume?timespan=all&format=json

After 1346350505 (Aug 27, 2012) the next one is 1346609705 (Sep 3, 2012).
After 1347128105 (Sep 7, 2012) the next one is 1347387305 (Sep 11, 2012).
After 1348078505 (Sep 19, 2012) the next one is 1348251305 (Sep 21, 2012).

[Edited: A third gap was found as well.]

[Stephen Gornick]

From another thread

I've read on this page https://blockchain.info/wallet/faq:

Why am I being asked to include a "Miners fee"?

 A miners fee will encourage bitcoin miners to accept your transaction more quickly. Sometimes if you don't include a fee your transaction will never get confirmed and will be returned to you in approximately 24 hours.

I cannot understand what Blockchain.info is doing that would "return to you" transactions that don't confirm in 24 hours.

Once a transaction is broadcast it ends up in the transaction memory pool for tens of thousands (or more) full nodes.

You can't spend the coins again because those nodes won't accept another transaction with the same coins -- it is a double spend.  Eventually the original transaction will get mined.

Does this message need clarification, or am I misunderstanding something?

[willphase]

From another thread

I've read on this page https://blockchain.info/wallet/faq:

Why am I being asked to include a "Miners fee"?

 A miners fee will encourage bitcoin miners to accept your transaction more quickly. Sometimes if you don't include a fee your transaction will never get confirmed and will be returned to you in approximately 24 hours.

I cannot understand what Blockchain.info is doing that would "return to you" transactions that don't confirm in 24 hours.

Once a transaction is broadcast it ends up in the transaction memory pool for tens of thousands (or more) full nodes.

You can't spend the coins again because those nodes won't accept another transaction with the same coins -- it is a double spend.  Eventually the original transaction will get mined.

Does this message need clarification, or am I misunderstanding something?

blockchain.info will purge transactions that haven't been confirmed into a block after approx 24 hrs - I had one recently that never confirmed.  So in this case if the tx just keeps bouncing around the p2p network and never sealed in a block it will eventually expire (as bitcoin nodes bounce, don't retransmit your tx) and it will be 'returned' to you in the form of the outgoing transaction vanishing from your blockchain.info transaction list.  It's then up to you to retransmit if you want to.

Will

[minimalB]

@piuk

Feature request:
Could you please add optional "Custom text filed" for "Send Via Email" form, so we could also add short personalized message to the email receiver?

Tnx!

[hazek]

bug report:

under "Receive money" if I go to "More actions" and choose "Show relationship diagram" a pop window opens, the blockchain frontpage loads and I get this message: Unknown Exception: null

and if I choose "Group addresses by taint" it stays on my "Recieve money" page but I get an error message "Error downloading taint data"

[wtfvanity]

This question was asked in the newbie section and never really answered: https://bitcointalk.org/index.php?topic=117442.0


This is regarding the custom send, "Public Note". It says that it is permanently embedded in the block chain. Is this really in the block chain where I could parse it myself? Or does blockchain.info embed a little ID and have a database that contains the notes?

[Stephen Gornick]

I'm trying to use Blockchain for Android for the first time on a Nexus 7 and it crashes on launch.

I can see the stack trace on the Report menu, but don't know how to copy that and paste it here so I'll manually type what it looks like the problem is.

Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment
piuk.blockchain..android.ui.WalletAddressFragment: make sure class name exists, is public, and has an empty constructor that is public
  at android.support.v4.app.Fragment.instantiate(Fragment.java.391)
  at android.support.v4.app.Fragment.instantiate(Fragment.java:359)
[...]
Caused by: java.lang.ClassNotFoundException: Didn't find class "piuk.blockchain.android.ui.WalletAddressFragment" on path: /data/app/piuk.blockchain-1.apk
  at
dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
[...]

This is on Android 4.2,

[Update: Thanks to World's tip on how to get a screen shot:


 - https://i.imgur.com/MZPXF.png

[World]

I can see the stack trace on the Report menu, but don't know how to copy that and paste it here so I'll manually type what it looks like the problem is.

To take a screenshot on your device, press the Volume Down and Power keys at the same time http://www.howtogeek.com/121133/how-to-take-screenshots-on-android-devices-since-4.0/

[flatfly]

Hi, there seems to be a serious issue with the donation button generator - it shows a random address for the recipient instead of the requested one. Can anyone reproduce it?

[Newar]

Small one: https://blockchain.info/wallet/deposit-bank-transfer

Steps numbered 1, 3, 3, instead of: 1, 2, 3, etc.

[wtfvanity]

This question was asked in the newbie section and never really answered: https://bitcointalk.org/index.php?topic=117442.0


This is regarding the custom send, "Public Note". It says that it is permanently embedded in the block chain. Is this really in the block chain where I could parse it myself? Or does blockchain.info embed a little ID and have a database that contains the notes?

I got an official answer from their support. Originally, the message was in the block chain. Per the request of bitcoin-qt developers having a fear of block chain bloat it is now just stored as a database entry on their server.

[knight22]

What's wrong with this graph

http://blockchain.info/charts/total-bitcoins

[picobit]

What's wrong with this graph

http://blockchain.info/charts/total-bitcoins

Wow!  700 billion bitcoins in circulation.  We are taking over the world.

[minimalB]

Does anyone else gets altered balance if anonymous transaction is used?

I'd like to send exactly X amount, but destination address gets X.something

Example:

I enter exactly 10btc to be sent anonymously... the receiver gets 10.0001 btc.

Is this a bug?

This has been fixed now.

Looks like the error is back... Today i got 0.001btc too little using the mixer.

[dancupid]

Any one have an explanation for this?

http://blockchain.info/charts/my-wallet-n-users

10% increase in users in a day or so?

[giszmo]

Any one have an explanation for this?

http://blockchain.info/charts/my-wallet-n-users

10% increase in users in a day or so?

Script kiddies?

[sunnankar]

Can you add some text to this graphic that instructs the user what to do? Perhaps Click Here under the heart?

I do not think the button is very intuitive for users. Most of them probably think, "Well, yes I would like to donate bitcoins but how do I do it?" Never thinking to click the image.

[jtibble]

Any one have an explanation for this?

http://blockchain.info/charts/my-wallet-n-users

10% increase in users in a day or so?

That ridiculous Reddit post on /r/videos where everyone was directed to check out the site?

[RyanRed]

I'm trying to use Blockchain for Android for the first time on a Nexus 7 and it crashes on launch.

I can see the stack trace on the Report menu, but don't know how to copy that and paste it here so I'll manually type what it looks like the problem is.

Caused by: android.support.v4.app.Fragment$InstantiationException: Unable to instantiate fragment
piuk.blockchain..android.ui.WalletAddressFragment: make sure class name exists, is public, and has an empty constructor that is public
  at android.support.v4.app.Fragment.instantiate(Fragment.java.391)
  at android.support.v4.app.Fragment.instantiate(Fragment.java:359)
[...]
Caused by: java.lang.ClassNotFoundException: Didn't find class "piuk.blockchain.android.ui.WalletAddressFragment" on path: /data/app/piuk.blockchain-1.apk
  at
dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
[...]

This is on Android 4.2,

[Update: Thanks to World's tip on how to get a screen shot:


 - https://i.imgur.com/MZPXF.png

I Seond this problem. I have the same issue but on a Samsung galaxy tab 2. The app won't even load for me sadly.

[World]

Any one have an explanation for this?

http://blockchain.info/charts/my-wallet-n-users

10% increase in users in a day or so?

That ridiculous Reddit post on /r/videos where everyone was directed to check out the site?

Check out this thread https://bitcointalk.org/index.php?topic=130371.msg1394998#msg1394998