Let's add up the KNOWN lost bitcoins

[dooglus]

9000 +
50
____
9050 BTC

There, fixed it.

Actually he 'only' lost 8,999 BTC.

38512.76334734
-      1.00000000
38511.76334734

Edit: disregard this.  maged already made the adjustment

[1714498307]

1714498307

[1714498307]

1714498307

[dooglus]

What about these?
https://bitcointalk.org/index.php?topic=67158.0

Anyone know how many such malformed transactions there are?

I'd say that's legitimate as lost coins.  Not sure how you'd go about finding similar lost coins though.

38510.26110001
+     0.00224733
38510.26334734

There are 131 of these 'script' transactions so far, and they're still happening.  Here's a list:

Code:

============address==============  ===date====  ==amount==  ==total===
http://blockexplorer.com/b/166533  Feb 12 2012  0.00070359  0.00070359
http://blockexplorer.com/b/166569  Feb 13 2012  0.00360503  0.00430862
http://blockexplorer.com/b/166577  Feb 13 2012  0.00192493  0.00623355
http://blockexplorer.com/b/166607  Feb 13 2012  0.00128911  0.00752266
http://blockexplorer.com/b/166612  Feb 13 2012  0.00244426  0.00996692
http://blockexplorer.com/b/166615  Feb 13 2012  0.00053919  0.01050611
http://blockexplorer.com/b/166628  Feb 13 2012  0.00292673  0.01343284
http://blockexplorer.com/b/166653  Feb 13 2012  0.00023878  0.01367162
http://blockexplorer.com/b/166705  Feb 14 2012  0.00378656  0.01745818
http://blockexplorer.com/b/166726  Feb 14 2012  0.00541471  0.02287289
http://blockexplorer.com/b/166732  Feb 14 2012  0.00543571  0.02830860
http://blockexplorer.com/b/166779  Feb 14 2012  0.00565863  0.03396723
http://blockexplorer.com/b/166794  Feb 14 2012  0.00041597  0.03438320
http://blockexplorer.com/b/166830  Feb 14 2012  0.00514466  0.03952786
http://blockexplorer.com/b/166918  Feb 15 2012  0.00019389  0.03972175
http://blockexplorer.com/b/166922  Feb 15 2012  0.00075685  0.04047860
http://blockexplorer.com/b/166984  Feb 16 2012  0.00281299  0.04329159
http://blockexplorer.com/b/166985  Feb 16 2012  0.00407387  0.04736546
http://blockexplorer.com/b/167161  Feb 17 2012  0.00410972  0.05147518
http://blockexplorer.com/b/167198  Feb 17 2012  0.00415832  0.05563350
http://blockexplorer.com/b/167248  Feb 17 2012  0.00145139  0.05708489
http://blockexplorer.com/b/167271  Feb 18 2012  0.00225675  0.05934164
http://blockexplorer.com/b/167276  Feb 18 2012  0.00207869  0.06142033
http://blockexplorer.com/b/167346  Feb 18 2012  0.00257912  0.06399945
http://blockexplorer.com/b/167363  Feb 18 2012  0.00309957  0.06709902
http://blockexplorer.com/b/167440  Feb 19 2012  0.00007664  0.06717566
http://blockexplorer.com/b/167462  Feb 19 2012  0.00322002  0.07039568
http://blockexplorer.com/b/167481  Feb 19 2012  0.00128328  0.07167896
http://blockexplorer.com/b/167485  Feb 19 2012  0.00045587  0.07213483
http://blockexplorer.com/b/167525  Feb 19 2012  0.00549808  0.07763291
http://blockexplorer.com/b/167555  Feb 19 2012  0.00059496  0.07822787
http://blockexplorer.com/b/167585  Feb 20 2012  0.00399989  0.08222776
http://blockexplorer.com/b/167658  Feb 20 2012  0.00275106  0.08497882
http://blockexplorer.com/b/167667  Feb 20 2012  0.00118138  0.08616020
http://blockexplorer.com/b/167668  Feb 20 2012  0.00000906  0.08616926
http://blockexplorer.com/b/167722  Feb 20 2012  0.00470455  0.09087381
http://blockexplorer.com/b/167825  Feb 21 2012  0.00087694  0.09175075
http://blockexplorer.com/b/167850  Feb 21 2012  0.00427282  0.09602357
http://blockexplorer.com/b/167855  Feb 22 2012  0.00208888  0.09811245
http://blockexplorer.com/b/167883  Feb 22 2012  0.00415304  0.10226549
http://blockexplorer.com/b/167905  Feb 22 2012  0.00005565  0.10232114
http://blockexplorer.com/b/167977  Feb 22 2012  0.00594791  0.10826905
http://blockexplorer.com/b/168021  Feb 23 2012  0.00082734  0.10909639
http://blockexplorer.com/b/168031  Feb 23 2012  0.00431250  0.11340889
http://blockexplorer.com/b/168037  Feb 23 2012  0.00800210  0.12141099
http://blockexplorer.com/b/168070  Feb 23 2012  0.00250262  0.12391361
http://blockexplorer.com/b/168077  Feb 23 2012  0.00472285  0.12863646
http://blockexplorer.com/b/168185  Feb 24 2012  0.00286246  0.13149892
http://blockexplorer.com/b/168197  Feb 24 2012  0.00226009  0.13375901
http://blockexplorer.com/b/168265  Feb 24 2012  0.00057839  0.13433740
http://blockexplorer.com/b/168269  Feb 24 2012  0.00145200  0.13578940
http://blockexplorer.com/b/168279  Feb 24 2012  0.00583032  0.14161972
http://blockexplorer.com/b/168340  Feb 25 2012  0.00077170  0.14239142
http://blockexplorer.com/b/168375  Feb 25 2012  0.00255920  0.14495062
http://blockexplorer.com/b/168430  Feb 25 2012  0.00375652  0.14870714
http://blockexplorer.com/b/168508  Feb 26 2012  0.00051736  0.14922450
http://blockexplorer.com/b/168553  Feb 26 2012  0.00796309  0.15718759
http://blockexplorer.com/b/168710  Feb 27 2012  0.00057744  0.15776503
http://blockexplorer.com/b/168736  Feb 27 2012  0.00242172  0.16018675
http://blockexplorer.com/b/168770  Feb 27 2012  0.00399886  0.16418561
http://blockexplorer.com/b/168792  Feb 27 2012  0.00352397  0.16770958
http://blockexplorer.com/b/168829  Feb 28 2012  0.00532818  0.17303776
http://blockexplorer.com/b/168978  Feb 29 2012  0.00316282  0.17620058
http://blockexplorer.com/b/168984  Feb 29 2012  0.00138952  0.17759010
http://blockexplorer.com/b/169103  Feb 29 2012  0.00755494  0.18514504
http://blockexplorer.com/b/169128  Feb 29 2012  0.00516194  0.19030698
http://blockexplorer.com/b/169146  Mar 01 2012  0.00056122  0.19086820
http://blockexplorer.com/b/169208  Mar 01 2012  0.00050910  0.19137730
http://blockexplorer.com/b/169287  Mar 02 2012  0.00339499  0.19477229
http://blockexplorer.com/b/169319  Mar 02 2012  0.00620574  0.20097803
http://blockexplorer.com/b/169343  Mar 02 2012  0.00468414  0.20566217
http://blockexplorer.com/b/169367  Mar 02 2012  0.00116705  0.20682922
http://blockexplorer.com/b/169398  Mar 02 2012  0.00224733  0.20907655
http://blockexplorer.com/b/169482  Mar 03 2012  0.00464537  0.21372192
http://blockexplorer.com/b/169516  Mar 03 2012  0.00187881  0.21560073
http://blockexplorer.com/b/169573  Mar 04 2012  0.00457810  0.22017883
http://blockexplorer.com/b/169585  Mar 04 2012  0.00629569  0.22647452
http://blockexplorer.com/b/169731  Mar 05 2012  0.00253851  0.22901303
http://blockexplorer.com/b/169766  Mar 05 2012  0.00158564  0.23059867
http://blockexplorer.com/b/169789  Mar 05 2012  0.00441625  0.23501492
http://blockexplorer.com/b/169802  Mar 05 2012  0.00288406  0.23789898
http://blockexplorer.com/b/169821  Mar 06 2012  0.00100676  0.23890574
http://blockexplorer.com/b/169913  Mar 06 2012  0.00406460  0.24297034
http://blockexplorer.com/b/170029  Mar 07 2012  0.00018553  0.24315587
http://blockexplorer.com/b/170046  Mar 07 2012  0.00433286  0.24748873
http://blockexplorer.com/b/170087  Mar 07 2012  0.00291929  0.25040802
http://blockexplorer.com/b/170159  Mar 08 2012  0.00057222  0.25098024
http://blockexplorer.com/b/170186  Mar 08 2012  0.00032761  0.25130785
http://blockexplorer.com/b/170260  Mar 08 2012  0.00575009  0.25705794
http://blockexplorer.com/b/170354  Mar 09 2012  0.00264517  0.25970311
http://blockexplorer.com/b/170362  Mar 09 2012  0.00778668  0.26748979
http://blockexplorer.com/b/170415  Mar 09 2012  0.00150029  0.26899008
http://blockexplorer.com/b/170422  Mar 09 2012  0.00218183  0.27117191
http://blockexplorer.com/b/170436  Mar 10 2012  0.00590602  0.27707793
http://blockexplorer.com/b/170459  Mar 10 2012  0.00167513  0.27875306
http://blockexplorer.com/b/170617  Mar 11 2012  0.00347816  0.28223122
http://blockexplorer.com/b/170633  Mar 11 2012  0.00417667  0.28640789
http://blockexplorer.com/b/170728  Mar 11 2012  0.00422097  0.29062886
http://blockexplorer.com/b/170732  Mar 12 2012  0.00638133  0.29701019
http://blockexplorer.com/b/170740  Mar 12 2012  0.00358863  0.30059882
http://blockexplorer.com/b/170771  Mar 12 2012  0.00582657  0.30642539
http://blockexplorer.com/b/170775  Mar 12 2012  0.00388815  0.31031354
http://blockexplorer.com/b/170791  Mar 12 2012  0.00042056  0.31073410
http://blockexplorer.com/b/170976  Mar 13 2012  0.00025778  0.31099188
http://blockexplorer.com/b/170998  Mar 13 2012  0.00059668  0.31158856
http://blockexplorer.com/b/171003  Mar 13 2012  0.00392645  0.31551501
http://blockexplorer.com/b/171042  Mar 13 2012  0.00522476  0.32073977
http://blockexplorer.com/b/171098  Mar 14 2012  0.00184036  0.32258013
http://blockexplorer.com/b/171107  Mar 14 2012  0.00449177  0.32707190
http://blockexplorer.com/b/171147  Mar 14 2012  0.00492298  0.33199488
http://blockexplorer.com/b/171208  Mar 15 2012  0.00192560  0.33392048
http://blockexplorer.com/b/171265  Mar 15 2012  0.00005350  0.33397398
http://blockexplorer.com/b/171304  Mar 15 2012  0.00204740  0.33602138
http://blockexplorer.com/b/171308  Mar 15 2012  0.00570292  0.34172430
http://blockexplorer.com/b/171333  Mar 16 2012  0.00113558  0.34285988
http://blockexplorer.com/b/171373  Mar 16 2012  0.00006181  0.34292169
http://blockexplorer.com/b/171388  Mar 16 2012  0.00067667  0.34359836
http://blockexplorer.com/b/171456  Mar 16 2012  0.00015301  0.34375137
http://blockexplorer.com/b/171459  Mar 16 2012  0.00565542  0.34940679
http://blockexplorer.com/b/171518  Mar 17 2012  0.00125161  0.35065840
http://blockexplorer.com/b/171535  Mar 17 2012  0.00201801  0.35267641
http://blockexplorer.com/b/171544  Mar 17 2012  0.00111346  0.35378987
http://blockexplorer.com/b/171562  Mar 17 2012  0.00402783  0.35781770
http://blockexplorer.com/b/171613  Mar 17 2012  0.00480879  0.36262649
http://blockexplorer.com/b/171641  Mar 18 2012  0.00434410  0.36697059
http://blockexplorer.com/b/171737  Mar 18 2012  0.00451762  0.37148821
http://blockexplorer.com/b/171764  Mar 18 2012  0.00201367  0.37350188
http://blockexplorer.com/b/171830  Mar 19 2012  0.00506286  0.37856474
http://blockexplorer.com/b/171845  Mar 19 2012  0.00039682  0.37896156
http://blockexplorer.com/b/171852  Mar 19 2012  0.00081491  0.37977647
http://blockexplorer.com/b/171883  Mar 19 2012  0.00196584  0.38174231

So that's 0.38174231 lost in total, and you already counted 0.00224733, leaving 0.37949498 more to add:

38511.76334734
+    0.37949498
38512.14284232

[Matoking]

I lost a single bitcent because I lost the URL to an Instawallet I had.

38512.14284232
+ 0.01
38512.15284232

[dab]

I lost 4btc from hdd corruption and formatting without backing up.

38512.14284232
+ 4.00
38516.15284232

[dooglus]

9000 +
50
____
9050 BTC

There, fixed it.

Actually he 'only' lost 8,999 BTC.

38512.76334734
-      1.00000000
38511.76334734

Edit: disregard this.  maged already made the adjustment

I wasn't quick enough spotting my mistake, so I need to undo it here:

38516.15284232
+      1.0
38517.15284232

[bitplane]

I lost at least 0.2BTC back in December 2010

38517.15284232
+      0.2
38517.35284232

[MaxSan]

I sent 0.01BTC to my dad on his new mobile. some girl deleted the application. goddam smart phone users, who aint so smart.

[payb.tc]

I lost a single bitcent because I lost the URL to an Instawallet I had.

38512.14284232
+ 0.01
38512.15284232

this doesn't count as 'lost' with respect to this thread.

that bitcent would still be spendable by the owners of instawallet.

[dooglus]

Yeah, I know it's an old thread, but wanted to update it with the latest.

So, 2600+ confirmed coins lost by MtGox.

18910.26110001
+2600
21510.26110001

It was 2609.36304319 BTC that was lost; see https://bitcointalk.org/index.php?topic=50206.msg598125#msg598125

38512.15284232
+ 9.36304319
38521.51588551

[dooglus]

http://blockexplorer.com/address/1DKMg2KmTyQmfiQxDfDsNKVx4PWYa7xga4 lists 1051 individual satoshis in 32 transactions that are unspendable.  They were 'spent' using http://etchablock.com/ which makes up vanity addresses without caring that their private keys aren't known.

2676720 more satoshis were spent by the same address as fees, but they aren't "lost".

The above page includes such gems as 11Bitta1ktvchristmasspecia1WNDvAa and 11MatthewLovesmandaXXXXXXXXabCJPY. 

38521.51588551
+ 0.00001051
38521.51589602

[01BTC10]

I lost my first coins like the noobs I am!

http://blockexplorer.com/address/1HAEA2h7it1w8U1sLgQYNS9eYLjTCR6Z9E

[dooglus]

I lost my first coins like the noobs I am!

http://blockexplorer.com/address/1HAEA2h7it1w8U1sLgQYNS9eYLjTCR6Z9E

So:

38521.51589602
+    5.661       
38527.17689602

[neo_rage]

38527.17689602
+    0.089 
38527.26589602

thank's god that's no more. I always make backups after the transaction has been approved.

[Raize]

I mined 100 BTC in late 2009 back when I thought this was a scam and/or waste of computational power and subsequently formatted the drive of the computer I mined it on sometime in early 2010: (I didn't even remember the wallet address)

38527.26589602
+ 100
38627.26589602

I went back to doing Folding@Home and other computational tasks. For what it is worth, I'm very sorry to have destroyed this 100 BTC. Not just for myself, but because I didn't believe in what would later become something I did believe in.

[Phinnaeus Gage]

SgtSpike, you've done such a fine job maintaining this thread, I thought it best if you were the one to start and maintain another one, one with much importance.

KNOWN bitcoins donated to non-profits (or something similar/catchy--"Re:" in front?)

You could start with these two below on your new thread, making sure to link the non-profit's donation page and BTC amount to its blockchain info, as shown below.

Group B Strep International (GBSI) ~ 130.05405 BTC

Internet Archive ~ 515.32217001 BTC

  130.05405
+515.32217001
  645.37622

As in this thread, users can also keep track of the running total, with you, along us, acting as moderators, double checking the reliability of all submissions.

~Bruno~

[SgtSpike]

SgtSpike, you've done such a fine job maintaining this thread, I thought it best if you were the one to start and maintain another one, one with much importance.

KNOWN bitcoins donated to non-profits (or something similar/catchy--"Re:" in front?)

You could start with these two below on your new thread, making sure to link the non-profit's donation page and BTC amount to its blockchain info, as shown below.

Group B Strep International (GBSI) ~ 130.05405 BTC

Internet Archive ~ 515.32217001 BTC

  130.05405
+515.32217001
  645.37622

As in this thread, users can also keep track of the running total, with you, along us, acting as moderators, double checking the reliability of all submissions.

~Bruno~

Ok, interesting idea, I might take you up on that. 

Most non-profits who accept Bitcoins have public Bitcoin addresses, so wouldn't tracking totals donated to them be as simple as looking up the current balance in a given address?

[finway]

I've lost 40 coins.

[Phinnaeus Gage]

SgtSpike, you've done such a fine job maintaining this thread, I thought it best if you were the one to start and maintain another one, one with much importance.

KNOWN bitcoins donated to non-profits (or something similar/catchy--"Re:" in front?)

You could start with these two below on your new thread, making sure to link the non-profit's donation page and BTC amount to its blockchain info, as shown below.

Group B Strep International (GBSI) ~ 130.05405 BTC

Internet Archive ~ 515.32217001 BTC

  130.05405
+515.32217001
  645.37622

As in this thread, users can also keep track of the running total, with you, along us, acting as moderators, double checking the reliability of all submissions.

~Bruno~

Ok, interesting idea, I might take you up on that. 

Most non-profits who accept Bitcoins have public Bitcoin addresses, so wouldn't tracking totals donated to them be as simple as looking up the current balance in a given address?

Exactly! One could view the grand total to date via blockchain. Every so often, users will check, on their own, if the total has changed, and if it has, they'll post the added coins to the running total.

~Bruno~

[istar]

38627.26589602
+ 42
38669.26589602

Lost 2 coins + the 40 that finway lost.

[TobyGoodwin]

38669.26589602

Sigh. Here's 0.07 (it was slightly more than that, but I don't remember the other digits) for you all to share among yourselves. 

So I was mining with p2pool on a spare machine, waiting for the coins to age a bit before transferring them to my main wallet. (Which is backed up, of course!) Unfortunately, one of my colleagues repartitioned the disk.  I've spent a while - considerably more than 30 pennyworth of my time! - trying to find the lost partition, but to no avail.

New total: 38669.33589602

Toby.