Weekly Challenge #14 - Lightbulb Coin
For this challenge, you need to implement a blockchain using md5 as the hash function that stores a ledger for 💡 coins. There's a lot of talks about crypto-currencies but most people don't realize how simple the ideas and implementation behind it are. The original Bitcoin paper is just 9 pages long.
Winners
- In first place, @nikpundik wins $75. He built a fully functional Bulb Coin 💡 and even featured Alice and Bob! https://github.com/Algorithm-Arena/weekly-challenge-14-lightbulb-coin/issues/1
- In second place, @Uzo2005 wins $50. I really like how the miner is just a while loop picking up random numbers and checking if the md5 hash starts with 4 zeroes, so simple and elegant. https://github.com/Algorithm-Arena/weekly-challenge-14-lightbulb-coin/issues/2
Prizes:
- Winner: $75
- 2nd: $50
- 3rd: $25
Rules:
- The winners will be evaluated based on how creative and interesting the solution is. @vjeux has full discretion on how the winners are selected.
- Multiple people can work on a single submission. If it wins, the reward will be split based on the team preferences.
- If a winner doesn't want to take the money, it'll be reinjected in the next week prize pool.
- The solution must be open sourced.
- There are no restrictions in terms of tech stack.
How to submit a solution:
- Deadline to submit is Sunday April 21th evening at Midnight PST (US West Coast).
- Open an issue on this repo titled "Submission - <Name of your submission>"
- It must contain a short video showing the submission in action
- It must contain an explanation on how to try it
- It must contain a link with the source code