shorena thanks for the support and keeping trying, but i am prmature to bitcoins. i dont know what you posted. i do understand a few things but not everything.
also, if that makes a difference, i used default wallet or wallet1. the rest of the wallets are made out of panick. i dont know if it changes anything tho.
and i repeat again, i did not write anything down. everything was copy paste. that is 100% sure. no doubt about this.
Well the thing is, I checked the first 500 addresses from the seed. Electrum only uses 20 for the start. If you used the request payment function it should have been part of the first 50 addresses easily, even if you have used the wallet previously for a short while. Your seed does not lead to the address though. So I checked whether there have been minor mistakes by hand. Afterwards I used the nice tool by btchris to check even more possible errors in the seed.
the btccris software isnt that something you use if you miss remembered some words of your seed? didnt quite get this.
Yes, but it also works on a correct seed. Its basically checking for errors.
is there anything that can be done? electrum community does not have a support for this? ill be more than happy to send them all the files if they need it to recover my address.
Im afraid the best support you will get is here. ThomasV is one of the electrum developers and btchris is all around very knowledgable when it comes to bitcoin.
as a matter of proof that the bitcoins were sent to me, and i am not making some weird story to get few bitcoins, do i need to make the sender sign his address that was used to send?
No, its not a trust issue. If the seed was not yours there is nothing anyone can do anyway, there are too many possible combinations. Its just that Im out of ideas how to find the missing privat key for the address. The seed itself is not correct. A variety of different electrum versions have resulted in an identical set of addresses (missing the crucial one). Since its a 13 word seed it can not be from 1.9.8 as the old version uses 12 words.
Without knowing the private key the bitcoins are lost there. There is no way to brute force a private key from an address. Its also not possible to brute force the seed.
I could check the other seeds in a similar way, but as you said those are from wallets you created later.
Im still not entirely sure what went wrong. My interpretation before I got the seed and the files was that there was something wrong with your particular installment of electrum that made the seed not work. I even had the thought that it might be an windows issue and tested the seed on a linux system to make sure. It always ends up with the same addresses.
There are two conclusions I can draw from this.
#1 there is something wrong with the seed. I dont know what though. If you copy pasted it there is little room for error.
#2 there is something wrong with the address. The first address by your seed is somewhat similar to the one that was used for the transaction. The first two or three symbols are identical. Could you have mixed up the address with one from a different wallet of yours? Maybe you tested several wallets before deciding for electrum.
Of course there is always the possibility that your machine was infected by very advanced malware, but if thats the case there is nothing anyone can do anyway. Do a routine check with your prefered software or boot dvd, it certainly does not hurt, but I would not be surprised if it finds nothing. There is known malware that is changing bitcoin address you copy paste, but AFAIK it used a distinct address and the funds are moved instantly or at least very quickly.
If anyone has any idea, again, Im open for things to try. I will ponder this further, but it feels like a dead end.