qklbishe GO区块链 2020-11-19

Advanced Solidity – Crowdsale of PupperCoin Token – 高级坚固性-傀儡币众筹区块链毕设代写

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Advanced Solidity – Crowdsale of PupperCoin Token

A new start-up has decided to crowdsale their PupperCoin token in order to help fund the network development. This network will be used to track the dog breeding activity across the globe in a decentralized way, and allow humans to track the genetic trail of their pets. You have already worked with the necessary legal bodies and have the green light on creating a crowdsale open to the public. However, the start-up is required to enable refunds if the crowdsale is successful and the goal is met, and it is only allowed to raise a maximum of 300 Ether. The crowdsale will run for 24 weeks.

ERC20 token should be created and will be minted through a Crowdsale contract that can leverage the OpenZeppelin Solidity library.

This crowdsale contract will manage the entire process, allowing users to send ETH and get back PUP (PupperCoin). This contract will mint the tokens automatically and distribute them to buyers in one transaction.

It will need to inherit Crowdsale, CappedCrowdsale, TimedCrowdsale, RefundableCrowdsale, and MintedCrowdsale.

The crowdsale will be conducted on the Ropsten testnet in order to get a real-world pre-production testing.

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Advanced Solidity – Crowdsale of PupperCoin Token

一家新成立的公司决定将其PupperCoin代币进行众包销售，以帮助为网络发展提供资金。这个网络将被用来以分散的方式追踪全球范围内的狗繁殖活动，并允许人类追踪其宠物的遗传轨迹。你已经与必要的法律机构合作过，并且已经为创建一个向公众开放的众包交易开了绿灯。然而，如果众筹成功并达到目标，初创公司必须能够获得退款，并且最多只能筹集300乙醚。众筹活动将持续24周。

应创建ERC20代币，并通过可利用OpenZeppelin Solidity库的众包合同进行铸造。

这一众包合同将管理整个过程，允许用户发送ETH并取回PUP（PupperCoin）。该合同将自动铸造代币，并在一次交易中将其分发给买家。

它需要继承Crowdsale、CappedCrowdsale、TimedCrowdsale、returnablecrowdsale和MintedCrowdsale。

众包销售将在Ropsten testnet上进行，以获得真实世界的预生产测试。

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