What is a Coin on Blockchain?
A coin is a native digital asset of a specific blockchain, such as Ether (ETH) on Ethereum or Bitcoin (BTC) on the Bitcoin network. It serves as the primary medium of exchange and unit of account within its ecosystem, used to pay transaction fees and reward validators. In Islamic finance, a coin is a digital representation of alternative money and must be free from riba (usury) and gharar (uncertainty). Qist builds on Base, where the native coin is USDC (a stablecoin pegged to the dollar), providing stability compliant with Sharia principles.
What is a Token?
A token is a digital asset issued on top of an existing blockchain, like ERC-20 tokens on Ethereum. Tokens represent various assets or rights: governance tokens, utility tokens, or even tokenized real-world assets. Unlike coins, tokens do not have their own blockchain. In Qist, we use tokens to represent ownership of real assets (e.g., commodities or real estate), where the seller retains ownership until full repayment, fulfilling the principle "the seller owns the asset."
The Core Difference from an Islamic Finance Perspective
In Islamic finance, money is not a commodity to be traded but a medium of exchange and measure of value. Thus, stablecoins like USDC are closer to Sharia-compliant cash than volatile coins. Tokens, on the other hand, represent ownership or rights in a real asset, aligning with the avoidance of gharar. The key difference: coins are base liquidity, tokens are ownership tracking tools. Qist uses USDC as the payment coin and tokens as temporary ownership certificates.
Why This Distinction Matters in Qist's Islamic Contracts
In Qist's model, payments are made in a stablecoin (USDC) to avoid riba and volatility. The token used in the contract represents the seller's ownership of the asset, not transferring to the buyer until full repayment. This prevents gharar and ensures the buyer does not own the asset prematurely. The token is also burned or transferred upon cancellation or early repayment. This distinction is fundamental to implementing the "excess is returned" and "3-day grace period" principles.
How Qist Implements This
Qist issues a token (Qist-Token) tied to each financed asset. The payment currency is USDC (a coin on Base). The smart contract locks the token in the seller's wallet until full repayment. In case of delay, a 3-day grace period applies without penalty, then the contract is voided and the excess returned. A 2% fee is deducted only from the seller. All tokens and coins are verified on BaseScan, providing full transparency for users.
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Educational content, not financial advice.