Project Description:

The code provided represents a Solidity smart contract for a token called "OctopiCoin" (OPI). The contract implements functionalities such as token transfers, approvals, allowances, and a transaction tax mechanism. Below is a detailed description of the project based on the code:

1. Token Details:
   - Name: "OctopiCoin"
   - Symbol: "OPI"
   - Decimals: 18
   - Total Supply: The initial supply is set to 1,000,000,000,000,000 (1 quadrillion) tokens, defined in the constructor.

2. Token Balances and Allowances:
   - The contract maintains a mapping called `_balances`, which maps addresses to their corresponding token balances.
   - The `_balances` mapping is private, meaning it can only be accessed from within the contract.
   - The contract also maintains a mapping called `_allowances`, which allows token holders to approve other addresses to spend tokens on their behalf.

3. Transaction Taxes and Buyback Fee:
   - The contract implements a transaction tax mechanism, where a percentage of tokens is deducted from each transaction.
   - The transaction tax percentage is defined by the `_transactionTax` variable, initially set to 4%.
   - Additionally, a buyback fee is applied to the transaction tax amount, defined by the `_buybackFee` variable, initially set to 1%.
   - The deducted tax amount is sent to a predefined tax receive address (`_taxReceiveAddress`), which is set to `0x47F2c317d989108553c43b901433Ab196eC571d7`.

4. Burn Percentage:
   - The contract implements a burning mechanism, where a percentage of tokens is burned (destroyed) in each transaction.
   - The burn percentage is defined by the `_burnPercentage` variable, initially set to 10%.
   - The burned tokens are permanently removed from the total supply.
   - The total amount of burned tokens is tracked by the `_totalBurned` variable.

5. Sell Restriction Time:
   - The contract includes a sell restriction mechanism, which prevents token holders from selling their tokens for a specified period.
   - The sell restriction time is defined by the `_sellRestrictionTime` variable, initially set to 1 week (604,800 seconds).
   - The `canSellTokens()` internal function checks if a token holder can sell their tokens based on the time elapsed since their last purchase.
   - If the sell restriction time has passed, the token holder is allowed to transfer tokens.

6. Ownership and Function Modifiers:
   - The contract includes an owner address, `_owner`, which is set to the deployer of the contract.
   - The `onlyOwner` modifier ensures that certain functions can only be called by the contract owner.
   - The modifier requires the message sender (caller) to be the same as the contract owner.

7. Contract Initialization:
   - The constructor function is called upon contract deployment.
   - It sets the initial supply of tokens to the contract owner's address and adds the owner to the `_holders` array.

8. Token Transfer Functions:
   - The contract provides functions for transferring tokens between addresses (`transfer()` and `transferFrom()`).
   - These functions enforce the sell restriction time using the `canSellTokens()` modifier before allowing token transfers.
   - The `_transfer()` internal function handles the actual transfer of tokens and applies the transaction taxes, buyback fees, and burning.

9. Approval and Allowance Functions:
   - The contract provides functions for approving and checking token allowances (`approve()` and `allowance()`).
   - These functions allow token holders to approve other addresses to spend tokens on their behalf.

10. Getter Functions

:
    - The contract provides various getter functions to retrieve token-related information, including total supply (`totalSupply()`), token balances (`balanceOf()`), purchase timestamps (`purchaseTimestamp()`), and the sell restriction time (`sellRestrictionTime()`).

11. Setter Functions:
    - The contract includes setter functions (`setTransactionTax()`, `setBuybackFee()`, and `setSellRestrictionTime()`) that allow the contract owner to update the transaction tax percentage, buyback fee, and sell restriction time, respectively.

12. Purchase Tokens Function:
    - The `purchaseTokens()` function allows users to mark their address with a purchase timestamp, indicating the time when they acquired tokens.
    - If the user has a balance of zero tokens, their address is added to the `_holders` array.

13. Events:
    - The contract emits two events, `Transfer()` and `Approval()`, whenever token transfers and approvals occur, respectively.

Overall, the OctopiCoin contract provides a basic implementation of an ERC20-compatible token with additional features such as transaction taxes, burning, sell restrictions, and ownership control.

OctopiCoin

Bitcoin

Solympics

Ethereum

cat in a dogs world

Solana

TARS AI

Shiba Inu

Pepe

Notcoin

Kaspa

Dogecoin

Toncoin

JasmyCoin

Cardano

Pixelverse

Render

Turbo

Bonk

PeiPei (ETH)

BLOCKLORDS

Bullish CDP LHS1 May Campaign

Big Time - CDP LHS2 (Desktop Only) 2024

Uphold CDP LHS2 May campaign

Bc.game CDP LHS2 July campaign

Bullish Search Bar Banner

Solidus AI Banner

Bitmart CDP Community banner

Bullish Portfolio Page Banner

Greed

Extreme fear

Fear

Neutral

Extreme greed

♻️ Rehypothecated

 🔥 Memes

 🔥 Solana Eco

 🔥 AI

🔥 Gaming

🔥 RWA

🔥 PolitiFi

Τιμή OctopiCoin
OPI

OctopiCoin community

OctopiCoin νέα

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