Hello, guys
I would appreciate any ideas on the following matter with coins kept in Bitcoin core wallet in 2014:
- i've got a Bitcoin core wallet (v 0.8.5) where I kept my coins in 2013-2014 with its final balance aprx 1 BTC (December 2014);
- in January 2018 I've opened a wallet and see former and correct balance (1 BTC), but the wallet is synchronizing with >100 weeks estimation;
- I've made several transactions for small amounts and still waiting for confirmations for >5 days;
- then I decided to go a different way and created a private key (in Jan 2018) in my 2014 Bitcoin core wallet and imported it to Electrum (v 3.05);
- to my huge surprise, Electrum showed zero BTC balance and all my previous (2013-2014) transactions with one exception - it shows a transaction I never did to unknown address in December 2014 with all the coins withdrawal (and it has >200k confirmations). The same is shown in Blockchain.info if importing private key there;
- blockexplorer services also show this transaction, but the coins didnt move anywhere else (my BTC is there since 2014 and didnt move);
- some other blockexplorer services dont show this (tradeblock.com) and show my fresh (Jan 2018) stuck transactions as still pending;
- as of now my Bitcoin core wallet shows the balance and pending transactions.
So, I assume that somehow I lost my BTC, but can not understand how... can it be a cyberattack/ security issue? Just interesting for the future not to make a mistake keeping the coins