Quote from: JxxxE on December 09, 2017, 08:50:32 AM

Hi,

My brother died last year, and I knew him to be a bitcoin miner. Recently I have put myself through a crash course in mining, and even became a miner myself.

In searching, I found a 20 word mnemonic that led me to ~$250 in BTC & $40 BCH at blockchain.info

I've looked for, but haven't found any wallet.dat files, wallet.*, login.*, coin, blockchain, and a few others I can't remember now. I haven't found a hardware wallet.

I'm waiting for coinbase customer service to help me get into the account that I know he had there (unknown if there's anything in it).

I know he started mining in October of `13 through mid/late `14. He was probably inactive between then and his death in October of `16.

Can anyone suggest other places on the web to search, any other search terms for his computer, names of software wallets he may have used?

Any help would be appreciated

By sending a copy of the death certificate and/or letters of testimony to the email providers you get his email history unlocked.

You would want to establish which mining pool he used, maybe from his emails. Then look that the type of mining equipment he had. From the type of equipment, you figure hash rate. Then going back to mining difficulty in the timeframe mentioned, you can estimate the return.

Maybe the $250 is all there was. If say he was using a single nice graphics card for the timeframe mentioned, could be. But you are using the $250 as present day value. Back in that time frame btc = 200 to 1000, very roughly.