OP, can you post the transaction id's, that way it would be easyer to see if something is wrong with the transaction in question.

Depends on a lot of factors...
If your transaction is a high priority transaction***, you can try not to add any fees... Altough most miners will not add your tx to a block without it having a fee, there are still some good samaritans that add zero-fee high priority transactions to their blocks.

For everyone else, there are sites like this one: https://bitcoinfees.21.co/
1) estimate your transaction size (in bytes, NOT in satoshi's)**
2) multiply by the number found on https://bitcoinfees.21.co/ , it's your own pick if you want the transaction to have a high probability of being added to the next block, or if you're willing to wait a bit longer.

Long story short: it depends on the size (in BTC) and age (in confirmations) of your inputs to determine the priority. If it's high enough, you can try a zero-fee tx, but it can take a long time to confirm.
If you can't create a high priority transaction, you should add a fee, how much depends mostly on the number of inputs and outputs of your transaction. Adding to much won't help you a single bit, adding to little might slow down the first confirmation, adding exactly enough would be ideal


BTW: i don't quite get the last part of your question: "how is it different from existing wallets?". I'm saying the OP can run bitcoind and use a json-rpc connection to create a transaction. Bitcoind is the "original". It's usually installed together with bitcoin-qt and was the first wallet. bitcoind is also the daemon that is ran by the nodes everybody relies on


** size can be estimated by: [number of inputs]*180 + [number of outputs]*34 + 10


*** priority = sum(input_value_in_base_units * input_age)/size_in_bytes
high priority = a priority above 57,600,000
source: https://en.bitcoin.it/wiki/Transaction_fees

Sure, you can start bitcoind on your server, and use json-rpc
https://en.bitcoin.it/wiki/API_reference_(JSON-RPC)

createrawtransaction
signrawtransaction
sendrawtransaction

Do be carefull tough, i'd strongly advice to let senior members review your code, and do elaborate testing using the testnet. If you screw things up you might really lose a lot of BTC in a very short time.

If you use the QT (gui usually installed together with bitcoind), you can just enable coin controll features and change the fee manually...
At least, i have coin controll enabled, and when i create a transaction ("send"-tab), i see a buttom "choose" net to the current transaction fee. When i click said button, i can chose whatever fee i'd like.

If you use bitcoin-cli you can also chose your own fee by creating a transaction manually: create a raw transaction picking your inputs and outputs, and the difference between in and out is the fee. Sign this raw transaction, broadcast it with the fee of your liking... A bit harder, but still doable.

But like been said before: it's not a good idear to use a (low) standard fee, sometimes you'll grossly overpay, most of the time your transaction will take a long time to confirm (depending on the size current mempool, fees of unconfirmed transactions, transaction size and luck)!!!

It's a nice idear, but i think the issue here is trust: how do we know you won't switch our address with one of your own?

This way, we'll be telling people: if you need to send coins, just look up our address on lootid, but in reality they'll send coins to your address instead.

I'm not saying that this is what you'll do, i'm just pointing out what i think is a flaw in the logic used here.

Here's a nice graph on this topic:

http://hashingit.com/analysis/41-waiting-for-blocks

It also explains quite a bit about the probability of this phenomenon.

In fact, if you look at the graph you do see that 5400 seconds between two blocks can indeed be considered pretty rare

I can't, but i usually trust the feedback given by DT members. There were 3 DT members that looked into the service and decided to give negative feedback. No positive feedback was given by any trusted member. This is sufficient for me to avoid this service.

No, i'm not, i'm not getting burnt investing in a ponzi sheme

Their FAQ was TL;DR
That being said, i did skip over it, and it offered no proof of this statement. Sure, they tell you: "Avalon Life has 2 mining equipment in Costa Rica", but without proof, this claim is completely worthless.
I seriously doubt they have any ASIC's at all, if they had, they would be showing them off to lure in investors.

Just my personal opinion tough.

I think it would be best if you moved this discussion to an other subforum, maybe service discussion. This subforum is actually meanth to make a real scam accusation (AFAIK).

This being said, that website does raise some red flags for me...

If you use the forum search function, you'll find these discussions:
https://cse.google.com/cse?cx=016660200577587308545%3Aesf40ml9aag&ie=UTF-8&q=avalon-life&sa=Google+search#gsc.tab=0&gsc.q=avalon-life&gsc.page=1

It seems the announcement posts: https://bitcointalk.org/index.php?topic=1549563.0 the owner seems to be https://bitcointalk.org/index.php?action=trust;u=878046 and 3 DT members already concluded that his website is fishy to say the least

I edited my post and added a lot of extra info

There are a couple of good websites that can you can visit to learn about the fee, for example this one: https://en.bitcoin.it/wiki/Transaction_fees

I'll try to explain it as simply as possible. This explanation made a lot of abstractions, and is in no-way the complete bitcoin theory!!!:
- in order to send bitcoins to somebody else, you create a transaction. It's basically a piece of text where you specify which inputs you'll use to create an output. In your case you used lots and lots of inputs. Each input has to be specified in the transaction.
- A miner puts the text of the transaction into a block, as soon as it's written in a block, it has 1 confirmation
- The size of the block is limited to 1 Mb, when it's full the leftover transactions have to wait untill the next block is mined

So, the more inputs you used, the bigger your transaction will be, the more space it'll use in a block. That's why the fee is calculated using the size of your transaction, and it has nothing to to with the amount of BTC you wanted to send.

The fee is basically the "tip" a miner gets when he choses to put your transaction into the block he/she is mining. The more satoshi's per byte of transaction you added, the higher the chance the miner will pick your transaction over the transaction of somebody else

To sum up:
1) you had a recent backup of your wallet.dat
2) you erased everything, reinstalled bitcoin core and replaced the new wallet.dat with your backup
3) you see all transactions, but have 0 balance

First question: is the wallet sync'ed? If not, you'll probably have to wait untill the wallet is completely synchronised (this might take a couple of days).

I'm afraid these steps will only work if you have bitcoind/bitcoin-cli installed on your system. Even then, i guess i will have made a couple of mistakes when i wrote these steps down, since i had no way of testing them out (the input was already spent by the time i read this thread).

I think it should be possible to generate a transaction with a couple of desktop clients (electrum, core and armory pop to mind). I don't have a lot of experience with blockchain, but i would be supprised if you could generate a multisig transaction with them.

I'll sync testnet on monday and i'll try to generate, load and send from a multisig testnet address (don't know if this will be hard to do). If i succeed i'll write a small tutorial/howto.

strange problem... So electrum does run under linux, you're just not able to restore exactly the same seed as you managed to use to restore your wallet on windows..

Can you look at the following 2 things:
- do the electrum versions match between windows and linux? This shouldn't be a big issue since the seeds from most recent versions should be compatible
- can you create a new wallet with your linux electrum (just to try out if electrum works fine)

If the versions are the same, and the linux version does work (but you cannot use the seed from your main wallet), i'm a bit stumped. You could either ask ThomasV if he can help you, or you could probably try to generate a brand new wallet in linux and restore it in windows... Afterwards send the funds from the "broken" wallet to the "new" wallet... Other than that i'm kinda out of idears right now (it's friday evening, i'm not really thinking straight right before the weekend).

you did try to reboot your linux system and do a clean startup?

I'm not an expert with core, but i don't think it's something you can easily do, except by creating the transaction from the cli or using the coin controll features (that way you can chose a custom change address, and use your "main" address)...

Altough there's no need to avoid change addresses (as a matter of fact, i think most users would actually say it's a good thing to use change adresses), if you really want to do this, i'd suggest using electrum (go to preferences, disable "use change adresses').

Let me see if i have this correct:
- you have an electrum seed
- you tried to restore your wallet using this seed, both on linux and windows
- on windows it works, on linux it doesnt, but you still see a green "dot" at the right bottom corner.

Can you go to the adresses-tab and verify if the adresses generated in linux differ from the ones generated in windows?

I believe in sharing info/working together, so far i've found these steps, untested by me, since the inputs were already spent by the lucky winner
Disclaimer: I have no experience with multisig wallets, so i'm only learning this myself. Information in this post might be wrong/inaccurate!!!
There might still be errors/mistypings in these steps, everybody is welcome to help and learn something in the process


bitcoin-cli getrawtransaction e90d9496ef20abbb1368a74bd97782d3475d6dd397743a7da92205d6823acace 1

bitcoin-cli createrawtransaction '[{"txid":"a91441678c6ff528fb339aeb83f2ca913144535ce4f287","vout":1}]'
'{"1MocACiWLM8bYn8pCrYjy6uHq4U3CkxLaa":0.049}'

bitcoin-cli signrawtransaction '010000000187f2e45c53443191caf283eb9a33fb28f56f8c674114a900000000000000000001000 00000ffffffff01a0c44a00000000001976a914e432ffb6ef0bde696af29ca13dd37c0824a40823 88ac00000000' '[{"txid":"e90d9496ef20abbb1368a74bd97782d3475d6dd397743a7da92205d6823acace","vout":0,"scriptPubKey":"76a91429ca93fdec799d0c03a4e3d7ed2a4fad4bb7b31088ac","redeemScript":""}]' '["5J9zrF4hPhqkKJzoyAR8r6oUbBgCxETKFx2tVYeMXUPXZRZnEt3"]'

bitcoin-cli signrawtransaction '010000000187f2e45c53443191caf283eb9a33fb28f56f8c674114a900000000000000000001000 00000ffffffff01a0c44a00000000001976a914e432ffb6ef0bde696af29ca13dd37c0824a40823 88ac00000000' '[{"txid":"e90d9496ef20abbb1368a74bd97782d3475d6dd397743a7da92205d6823acace","vout":0,"scriptPubKey":"76a91429ca93fdec799d0c03a4e3d7ed2a4fad4bb7b31088ac","redeemScript":""}]' '["5JnLZhYhzQff2ydDUCSA793LYbCtDNoC6dEG1ERDdQ74z5cBDdz"]'

bitcoin-cli sendrawtransaction 010000000187f2e45c53443191caf283eb9a33fb28f56f8c674114a900000000000000000001000 00000ffffffff01a0c44a00000000001976a914e432ffb6ef0bde696af29ca13dd37c0824a40823 88ac00000000

I've just learned there's a clone: preev.net
Seems to work pretty good, and it seems to have more or less the same functionality as preev.com

I can confirm i received the vouch copy.

I quickly installed it on my android phone using the official app from the playstore. I can confirm that the OP has given my a fully functional account!
I logged in with the given credentials, and was able to chose a server. Tested if it was working => OK.

So as far as i'm concerned, the OP does have acces to accounts. I can vouch for this, altough i have no idear about the method he used to get the account or how long it will last (i actually have no idear, only time will tell).

I'll test some more tomorrow, when i'm at the office, and edit this post afterwards.

EDIT after some more testing: i've did a couple different setups, all seems to be consistent with a full ipvanish account

I don't really need a VPS, but i have some spare time tomorrow (around 9 o'clock GMT) to test out your service in case i get a vouch copy (doesn't have to be a full year licence, i'll only need it during the review)

Doesn't really matter who or what happened... If you did not create transaction https://blockchain.info/tx/e9ee203c3cdadc416ab29a7a4b48bfea89d39246286ab101bd61def27e56462e and the address is 100% certainly owned by you, you are compromised in one way or another (either intentionally, or by accident).

Either coinb.in has a bug/problem and generated the same private key twice, you were the victim of an attack during the creating of the private key (maybe a phising website or something), or your pc is compromised (those seem to be the most likely scenarios).

I'd never, ever use that address again, move all funds that belong to you away from this address, make sure my pc was 100% clean (maybe even do a complete reinstall just to be sure) and stay away from online wallets in the future

the address has this incoming transaction 4be3bc47b3d8c5c1c8ef30ebd5a87a09f2acd59183e03aaec189a0ebe7f8c714 . It came from
https://www.walletexplorer.com/txid/4be3bc47b3d8c5c1c8ef30ebd5a87a09f2acd59183e03aaec189a0ebe7f8c714

Seems to be an address belonging to fortunejack... Did you withdraw your gambling winnings? If not, maybe fortunejack can get you into contact with the second user using this private key???