Create a short outline for a brief essay about the important problems that Bitcoin solved.
system
bitcoin ko hal karne vaali mahatvapurn samasyaon ke bare main ek sankshipt niabandh ke liye ek choti ruparekha banaaen.
user
1 parichay
2. pear-tu-pear lenden
    A. ne tisare paksh ke bina digital lenden kaa sanchaalan karnaa sambhav bana diya
    B. lenden kii laagat ko kam kar saktaa he
    C. upyogkartaaon ke dhan ko rakhane vaale tisare paksh se jude muddon ke jokhim ko kam kar diya
3. dabl-kharch samasya
    A. dabl-kharch samasya kii paribhaasha
    B. kryptographic rup se surakshit vitarit khaataa bahi ("blockchen")
    si. yah nirdhaarit karne ke liye vidhi ki koun sa sanskaran sahi he yadi bahikhaata ke paraspar virdohi sanskaran hai
4. purvavarti kaam kii sankshipt charchaa
     e hashcash
     bi.
     si. bitagold
5. upsanhaar
assistant
<|system|>
</s>
<|user|>
bitcoin ko hal karne vaali mahatvapurn samasyaon ke bare main ek sankshipt niabandh ke liye ek choti ruparekha banaaen.</s>
<|assistant|>
1 parichay
2. pear-tu-pear lenden
    A. ne tisare paksh ke bina digital lenden kaa sanchaalan karnaa sambhav bana diya
    B. lenden kii laagat ko kam kar saktaa he
    C. upyogkartaaon ke dhan ko rakhane vaale tisare paksh se jude muddon ke jokhim ko kam kar diya
3. dabl-kharch samasya
    A. dabl-kharch samasya kii paribhaasha
    B. kryptographic rup se surakshit vitarit khaataa bahi ("blockchen")
    si. yah nirdhaarit karne ke liye vidhi ki koun sa sanskaran sahi he yadi bahikhaata ke paraspar virdohi sanskaran hai
4. purvavarti kaam kii sankshipt charchaa
     e hashcash
     bi.
     si. bitagold
5. upsanhaar</s>
