https://github.com/a-tokyo/cryptocurrency-simulation

💸 A cryptocurrency (Bitcoin) Simulation.
https://github.com/a-tokyo/cryptocurrency-simulation

bitcoin blockchain consensus crypto cryptocurrency cryptocurrency-simulation ethereum ledger lightning-network smart-contracts

Last synced: 27 days ago
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💸 A cryptocurrency (Bitcoin) Simulation.

• Host: GitHub
• URL: https://github.com/a-tokyo/cryptocurrency-simulation
• Owner: a-tokyo
• License: mit
• Created: 2018-04-01T18:49:19.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-05-24T23:13:02.000Z (over 6 years ago)
• Last Synced: 2024-10-18T14:59:40.100Z (about 1 month ago)
• Topics: bitcoin, blockchain, consensus, crypto, cryptocurrency, cryptocurrency-simulation, ethereum, ledger, lightning-network, smart-contracts
• Language: Java
• Homepage:
• Size: 47.9 KB
• Stars: 0
• Watchers: 6
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# cryptocurrency-simulation

A cryptocurrency (Bitcoin) Simulation.

### What is the main Idea?

In this project, we will design a cryptocurrency similar to BitCoin. We will simulate a

multi-user network, once a transaction is made, the user announces it to his near peers.

Not all users get notified by the transaction, you can randomize the notification process.

Once the user accumulate n transaction, he can form a block by accumulating

transactions and doing a computationally expensive task (e.g. finding a nonce that

hasn’t be used in the ledger before) and append this nonce to the block. Once the block

is formed, it can now be announced. After a block announcement, users who are

notified about this block, will add it to their version of the ledger and the majority of them

have to consent that this version of the ledger is the same version they have. Users with

different version than this version will have to throw away their versions and adopt this

one.

### Deliverables

- A transaction will be treated as a black box with a transaction ID.

- A simulation of the network, with multiple users and the randomized process of

announcing a transaction, making each transaction reach an arbitrary set of

users.

- The design and implementation of the ledger based on the concept of the

blockchain (hash linked list)

- The puzzle needed to announce the block, you can find a computationally

expensive task that’s used in famous blockchains and apply it in your system.

- The process of building a block out of a set of transactions, a hash to the

preceding block and a nonce generated by the computationally expensive task.

- The process of announcing the block to an arbitrary set of users.

- Having the users consent that once they received the announced block, their

ledger (blockchain) align with that of the other users. And having users with

different versions of the ledger adopt the consented version instead.