A hard disk with bitcoin is gone

1. Yes, it's stored in the hard disk. If it's a physical object, you may not find it when it's thrown into the sea. If it won't be corroded by the sea, it may be found hundreds or thousands of years later. But as a virtual currency on the network, bitcoin's transaction and preservation are all in online accounts. As long as you remember bitcoin's account, user name, password and ID, you will never lose it.

2. This problem depends on how you get bitcoin. Generally, there are no system problems or internal data formatting. If you can retrieve it in other ways

3.

1、 Open pit mining: in general, diamond mines are mined around kimberlite pipes. The middle of the pipes is the place where high-quality diamonds are most concentrated, which is usually characterized by huge holes. When the Kimberley rock pipeline was found, miners g out vertically from the ground surface

Second, underground mining: this mining method is safer and more efficient, especially with the deepening of the mining process, it is difficult to judge whether to continue mining to expand the mine. Underground mining only needs to open a tunnel to extract diamonds under the surface, which is more reasonable and less dangerous. Sometimes a combination of underground and open-pit mining is used to make a tunnel from the pit into the surrounding rock

Extraction of kimberlite from the mine: kimberlite can be released from the earth's crust by artificial explosion, and a large number of rocks can be destroyed by explosion, but it can not be detected on site. It is wrapped with diamonds and must be transferred to another place for processing and diamond extraction by large trucks and steam shovels, Generally speaking, there are 0.5 carats of diamonds in one ton of mud

(4) percussive Mining: rivers and streams will bring kimberlite to the river bed, shore, or even coastal zone to form percussive sand deposits. Percussive mining is also known as artificial mining, because the miner has to go to the percussive sand deposit to search for diamonds artificially. The farther away from the kimberlite pipeline, the lower the output of diamonds and the more sparse the distribution density of diamonds. Therefore, percussive mining is not suitable for instrial diamond mining

extended data

1. The Kimberley diamond deposit was discovered by the Burnett brothers in 1870. It is this discovery that makes people know which kind of rock may contain diamond. It's a volcanic rock formed after the magma of ancient times cooled. In places where garnet and olivine are proced, the possibility of finding diamond is relatively high. Therefore, garnet and olivine become the "indicator minerals" for diamond

From 1866 to 1914, 50000 miners used shovels and other tools to excavate, and a total of 2722 kg of diamonds were excavated. The South African government is trying to apply for the Kimberley pit as a world heritage site

Third, open-pit mining is a process of removing the covering from the ore body to obtain the required minerals and extracting useful minerals from the open surface stope. Open pit mining operation mainly includes perforation, blasting, mining and loading, transportation and mping. Compared with underground mining, open pit mining has the advantages of full utilization of resources, low dilution rate, suitable for large-scale mechanical construction, fast mine construction, large output, high labor proctivity, low cost, good working conditions and safe proction

4. All the other answers are rubbish.. The missing part still exists in the total amount.. The future total is dead. Missing items are also included and will not be cleared out of the total amount.

5. Put it in the online wallet. Only a fool can save it by himself. Don't say that the U disk is lost. What if the hard disk is broken and formatted? It's all money....

6. In this case, you can update its wallet to the latest block.

7. Run the bitcoin client and check the balance.

8. I have studied it for a while. The probability of a comprehensive attack is not big, but it is possible to attack in a small scale. According to the characteristics of bitcoin, for example, changing I to 1
is a very small attack, which is difficult to find. If the inventor holds a mind of not making you feel better, this kind of attack is possible. You can't find it before you take money, because you have money and everything, I just can't get it out