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Smart Contract Dev Bids Wanted

Job Description:

Smart Contract Developer Wanted

If you can do this well, there will be much more to do.

Bid on each:

1. Mint 23M cryptocurrency tokens. Only administrator sets, gets and accesses contract Mint. Question is how many decimal places: Bitcoin’s 8 or Ether’s 18, or some other number? Pretty simple. Such a contract already exists. What else needs to be done? Completion is the delivery of the reusable contract and the tokens in my wallet.

2. Exchange tokens. Reusable smart contract that will exchange tokens at an agreed rate. Presumably ERC-20 tokens.

Example: The parties agree to exchange “Token A” for “Token B” at a one for one ratio (1:1). Set a time frame for both parties to send their tokens to the contract. If both don’t send their tokens by the expiration date/time, the tokens are returned. If both parties fulfill the contract, the exchange is executed, resulting in the expected tokens in each parties’ wallet. Such a contract already exists.

3. Certificate of Authenticity: A public key accesses read only data about the authenticity of the property it authenticates (there should be an appropriate cost to access to prevent malicious actors). A private key can post, edit, and (maybe?) delete the data that is accessed with the public key, and may access data that is not accessible with the public key (only with the private key). Only the private key can write, the public key can only read. The question is how much data can be on chain? If it is too much to efficiently be put on chain, it should link/provide a decryption key to access the off-chain data.

If off chain data is necessary, we must make sure such data is always accessible, and cannot be altered, and can be verified as the data referenced by the certificate of authenticity (maybe with a hash and/or checksum?).

Data may include, ideally in an excel-like format, the following:


Dated of Creation

Title of Property

Transaction history

Photo documentation of physical property

Other documentation

4. Title digital and/or Physical Property. This might be able to be done with one token, such as the ERC-1155. The title will contain all the information about the property, just like the certificate of authenticity. The complexity is that that ownership can be fractionalized. I conceptualize this as the whole token and the fractionalized tokens that make up the whole token. The owner of a fractional token has his or her own token that can be traded at will and without permission, but the whole token needs to account/link for each fractional token that comprise its whole. This title will have the same information as the certificate of authenticity token, in addition to documenting each transaction and fractional owner (maybe just the fractional tokens will be identified with serial numbers/meta data instead of any personal information about the owner).

The token might require some governance capabilities, so that a majority, or maybe super majority (60 or 66%) can vote to sell the whole, and all fractions, by accepting a tender offer. The contract would enforce this decision (obviously some acceptance of terms will be necessary to do this).

5. Title and Accounting. All the functions in the title above at 4, plus the token would either make disbursements of profits from the property to the fractional token holders in crypto, or account for the disbursements in fiat currency due and/or paid to all fractional token holders.

The example is a royalty for a musical composition. The title and the music are held in a token. Profits, in the form of quarterly royalties are received and disbursed proportionally to each fractional owner/token holder in crypto, and if fiat, is accounted for showing the holding of the fiat disbursement or confirming the fiat disbursement. Some oracle (off-chain) authority would need to load or hold disbursements.

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Kĩ năng: Blockchain, Solidity, Smart Contracts

Về khách hàng:
( 0 nhận xét ) Seattle, United States

ID dự án: #35430588

14 freelancer chào giá trung bình$256 cho công việc này


Hi, how are you? As a top 2% blockchain developer, I have pretty much experience with smart contract. Please contact me. Thanks.

$250 USD trong 7 ngày
(10 Nhận xét)

Hello I am a blockchain developer, specialised in custom cryptocurrency and blockchain based Enterprise solutions. I have extensive experience in ICO's, STO's, Customising Consensus(POS/POW), Cryptoexchange, Wallets an Thêm

$200 USD trong 1 ngày
(7 Nhận xét)

Hello. Thanks for your job posting. I am a Blockchain Expert with 5+ years of experience. If you hire me, I can start this project right away. Please contact me to discuss more details. Best Regards

$140 USD trong 7 ngày
(4 Nhận xét)

Dear sir, As an experienced web3 developer, I can help you in a professional way. I have been developing various blockchain relevant projects for 5+ years. High quality & incredible speed, Reliable credit, Good Commu Thêm

$150 USD trong 2 ngày
(5 Nhận xét)

Hello, I am a Full Stack Blockchain Expert from Latvia. I have extensive experience in DAO, DEX, DeFi, Smart Contract Development, Audit and Test. I also have rich experience with TDD/BDD and writing test cases using m Thêm

$250 USD trong 1 ngày
(1 Nhận xét)

Hello respected client. Thanks for posting. I am happy to send my proposal for this project. I am highly interested in this project as I have substantial experience in developing various blockchain and NFT websites fo Thêm

$190 USD trong 7 ngày
(0 Nhận xét)

Dear Client I have checked your project details and I am sure I can help you with that. Let me introduce myself. My name is Sarah and I have been working in the block chain domain since 2014. I have over 8+ years of e Thêm

$200 USD trong 5 ngày
(0 Nhận xét)