Okay. Your answer is still not 100 pct clear to me.
Please answer with Yes / No to each question.

Did you request a payment to 1M2s5jnkspK82fyiJ1stzG8SDdPhuYcbKP?
Do you have chat logs / emails confirming this (no need to share)?
Did you see the 5 btc arrive on 1M2s5jnkspK82fyiJ1stzG8SDdPhuYcbKP in your wallet?
Did you see the 5 btc arrive on 1M2s5jnkspK82fyiJ1stzG8SDdPhuYcbKP on blockchain.info or something alike?
Did you write down the seed when generating your wallet (before making this transaction)?
Do you have the transaction confirmation hash?
It looks like this

The seed you have now, does it produce the master pub key you shared in this thread?
It should start with the address 1M2WeprC3o6P7YvLvXEAFZBQVFxs4iPqKD.
I checked by making a watch-only wallet with your key.

Are you using windows?
Did you download electrum from the official site?
Did you add addresses manually?

No more Yes/No questions, but still important:
Do you use standalone, installer or portable version of electrum?
Which version?


If you are using standard windows 7, go to your c:\users\FILL_IN_YOUR_USERNAME\AppData\Roaming\Electrum folder.
Tell us which files you see there.
It contains your settings and your wallet files.


Edit: did electrum generate new addresses when you reopened the wallet file and the address disappeared?
The odds are low for 2 consequent seeds to have their first address to start with 1M2... this smells like an auto-complete typo on your end.

OP, do you still have the address that is supposed to have received the payment?
Is it 1M2s5jnkspK82fyiJ1stzG8SDdPhuYcbKP ?

That address is not part of the public key you have shared!

The first address generated by your public key is 1M2WeprC3o6P7YvLvXEAFZBQVFxs4iPqKD
Careful, it is similar for the first 3 letters but not the same.

I hope you kept your communication with your counterpart.
He may have swapped the address you gave to a similar address.
You should get in touch and get him to send to the correct address.

Expire date has no influence on this. Don't worry about it.

Congrats Thomas, looking forward!
It hurt a bit to see bip39 got kicked, however I fully agree it is the best way to go.
I got some other projects occupying me atm, but I'll be back soon (2 weeks ) to help with kivy!

I'm making a UI on top of this, similar to electrum.
I really like your clean code!

A wallet with 10k addresses will poll the history of all those 10k addresses to the server.
Electrum is not optimized to handle wallets of this size for now...

If you have only a few addresses that received coins, you can try this:
- Open your wallet file (look in c:\users\myuser\appdata\roaming\electrum\wallets on windows)
- Look up the private key for the addresses that have coins
Now either
- Import these private keys in a new normal electrum wallet and send the coins somewhere.
Or
- Make a custom transaction with csv file to send the coins to a single address.
Or
- Import them in a wallets such as blockchain.info ...

The public key is a subset of the private key.
The bitcoin address is the hash of of the public key.

This means that your public key and bitcoin address can be derived from the private key.

The electrum seed generates a series of private keys.
This means all the private keys of a wallet can be generated from 1 seed.

The electrum master public key is derived from the seed.
All the public keys can be derived from it, and in turn, all your bitcoin addresses.

Conclusion:
- Just backup your 12 word seed. (13 words for electrum 2.0 HD wallets).
- Do not export private keys of an electrum wallet unless you really know what you are doing. There are tools that derive all your other private keys based on a single electrum private key.
- Use a watch-only wallet based on the master public key for wallets on PCs you use a lot.

Is the following correct?
- you can write a seed towards the btchip
- you cannot read a seed from the btchip.
- signing the tx is done on the chip.

Thanks in advance

Good thing you could recover it.
I'd suggest moving your coins to a new wallet (with new seed).

Be careful with sweeping without storing the private key: you might have to prove ownership of the private keys by signing a message.
Example for claiming refunds or requesting a transfer of ownership to another address.

wow kan je daar voor 10000 euro cash in een keer kopen?
welke gegevens moet je dan wel allemaal opgeven?

wall of 200 shares at 0.3 btc on 796.com ... looks like they are more liquid than havelock ...

Did anyone know how many shares Garrett had? Because they also received the final dividend...
Did he sell them all? What happened to them?

I think MPalokaj bought Garrett out in an off-exchange deal and then "bought back" all the remaining shares for the measly value of 0.0076 btc... refunding his own shares at the same time...

Care to share some info on Garr255 here on the form, real name Garrett Ian McDonald, who ran Cognitive Mining?
Found his Facebook page and Linked-in but I could use a bit extra...

Don't forget to refund all this to the shareholders.

OMG. You turned around the wording of the vote. You've even miscounted my vote and probably the vote of several others.
You have never returned the full result of the first vote (my vote was never in there) and you've mixed all the "wait for delivery until friday" to the "yes, start paying for hosting" camp.
All because you want to drain the fund even more...

You have changed the vote question, garrett. The first vote was 'do we keep mining with cog or do we close down'. The next vote, 1 week later was 'does cog pay for hosting or do we close down'.

I voted yes to keep mining as long as you pay for hosting with personal funds, but to sell if the costs are on us. You have changed my vote into a yes...

You don't get to bring in receipts until the 2nd vote has finished! Use your april divs to pay those.

Garrett promised us free / the cheapest hosting on the planet with electricity rates around 0.06 usd/kWh.
Months later and two weeks after the first pieces of hardware arrive he changes this to 0.37 usd/kWh.
This operation is not viable anymore...

You are naive if you think that difficulty will stabilize at (or below) 25b (a 5-fold of what it is now). Not even a price drop to 100 usd would cause that.
It will be somewhere around 60b - 300b.

Add the fact that 50 btc went missing in November "because we were very unlucky" and another 100 btc last 2 months "due to the hardware failing, no time to reboot it, too busy making HF website". I start wondering if even the BFL delay we experienced ("they didn't ship on friday") was true.

Sam / Garrett, why the radio silence?

Oh jawel.

A small comparison between a theoretical and an actual mining bond:

B.Mine on havelock is 5GH/s/share at 0.046 btc/share, which is 0.0092 btc/GH.

Cognitive is 20000/14460 = 1.4GH/s/share [minus hosting costs].
If we could get 380 btc by selling now, that is 0.026/share, which is 0.0186 btc/GH.

If you want Cognitive to keep mining hoping for profits, you should buy B.mine instead.
If you want Cognitive to keep mining to fortify the bitcoin network, you should look for a more competent/trustworthy operator.

I made some calculations before the weekend, but with the exchange rates going down it looks a bit worse.
On the other hand, I'm pretty sure that Garrett had to pay this month's mining in advance, so he might have been lucky there...

If cognitive chooses to go for mining (and paying hosting bills):
At 500 usd/btc, mining at 20 TH/s using 30kW electricity at 0.37 usd/kWh will produce
-   103 btc before we start running at a loss in 180 days, assuming 10% difficulty jumps.
-   69 btc before we start running at a loss in 125 days, assuming 15% difficulty jumps.
-   52 btc before we start running at a loss in 100 days, assuming 20% difficulty jumps.

At 450 usd/btc, mining at 20 TH/s using 30kW electricity at 0.37 usd/kWh will produce
-   93 btc before we start running at a loss in 175 days, assuming 10% difficulty jumps.
-   62 btc before we start running at a loss in 115 days, assuming 15% difficulty jumps.
-   46 btc before we start running at a loss in 90 days, assuming 20% difficulty jumps.

This assumes that Garrett is able to maintain 20 TH/s on average without too much variations.

If cognitive chooses to sell everything:
22 units at 8000usd a piece, we are in for 176k usd = 352 btc (500 usd/btc).
Add the 30 btc (29. of the whole Cog Fund:
-   7.67 in 1cogxX – mining eligius
-   1.08 in 1cogHC – mining altcoins
-   1.89 in 1cogtX – mining eligius B
-   15.95 in 1coggh – reserve wallet
-   3.2 in 1LQFqj – Havelock deposit
-   xxxx mining profits of april (about 20-30 btc).

Conclusion: sell now should provide about 380 btc now, while mining will provide about 50 btc in 3 months.

Division over 14420 shares (825 unclaimed) is 0.026 per share if we sell, opposed to 0.0034 x 50% in the coming 3 months if we continue mining with these high hosting costs.
This is almost a nobrainer. The best Garrett can do to save his reputation is to get the most out of the negotiations with Cointerra and get it delivered asap. We should embrace the decreasing exchange rates to sell some HW for usd.