What is Cryptocurrency?

What does cryptocurrency mean?

Cryptocurrency is the general name for digital assets where ownership and transfer records are verified using cryptographic methods. In everyday language, very different products fall under this name. Native assets of independent networks like Bitcoin, stablecoins that track the value of the dollar, and tokens that provide voting rights in an application can be listed on the same exchange; however, they do not offer the same function or the same security.

Therefore, the first question should not be “what is the price?” but rather “what does this asset do?” Paying a network’s transaction fee, providing collateral in a contract, or voting on specific decisions are different use cases. Owning a token does not automatically mean being a partner in the project’s company or receiving a share of its revenue.

Difference from a digital bank balance

The TL in a banking application also appears as a number on the screen. However, this record is linked to a bank account and the liability of the relevant institution. A user who manages their own keys on an open blockchain can transmit their transaction by signing it directly to the network. The validity of the records is verified according to the rules of the relevant network.

Nevertheless, not every crypto asset is decentralized to the same extent. In some tokens, issuers can block addresses, mint new tokens, or update the contract. A balance held on an exchange is also mostly the exchange’s internal record. The word “crypto” alone does not indicate the absence of central control.

There is also a difference between an application point and a transferable token. While a point can only be used within the company’s system, a token can be sent to another wallet. However, being transferable is not a guarantee of real demand or value. What the right of use is and under what conditions it can be changed must be clearly understood.

Blockchain and verification logic

Blockchain is a record structure where transactions are kept in interconnected blocks. Nodes in the network—the computers running the software—apply the same rules to the valid transaction history. Signatures help demonstrate that a transaction was sent with the necessary spending authority. The network’s consensus mechanism determines how blocks are produced and which history is accepted.

Bitcoin uses Proof of Work; miners produce blocks through a computational competition. Ethereum uses Proof of Stake; validators take on roles with the ETH collateral they deposit. These headings do not explain all the details. The network’s update authorities, participant distribution, and how it behaves in case of an error also affect security.

The fact that a blockchain record is difficult to change does not mean that every piece of information entered is true in the real world. A transfer made to an incorrect recipient address can also be confirmed in accordance with the rules. Systems that bring price or event information from the outside world must be independently reliable.

The distinction between coins, tokens, and stablecoins

A coin generally describes a network’s own native asset. BTC is used on the Bitcoin network, and ETH is used on Ethereum. A token, on the other hand, is often created via a smart contract on an existing network. For example, to send an ERC-20 token on Ethereum, you may need to pay the transaction fee in ETH.

A stablecoin is an asset that aims to keep its value close to a reference point, such as the dollar. This objective can be implemented through different reserve and collateral methods. The phrase “pegged to one dollar” does not mean it can be redeemed for exactly one dollar at any moment. There may be issuer, reserve, redemption, and market liquidity risks.

NFTs, meanwhile, represent tokens that can be distinguished from one another. Two NFTs in a collection may not carry the same price. NFT ownership also does not automatically grant the copyright of the visual. Since these are different technical and economic structures, evaluating all of them solely under the heading of “altcoin” is insufficient.

Wallets and exchanges are not the same

A wallet manages keys and allows you to sign transactions. Keys are not the asset itself, but the authority to spend it. Recovery words can help recreate these keys. Losing the words leads to loss of access, while giving them to someone else leads to theft.

An exchange is a service that brings buyers and sellers together or offers direct price quotes. When you hold assets in your account, the platform mostly manages the keys. By withdrawing from the platform to a personal wallet, you can switch to a different custody arrangement. In this transition, the correct network, address, minimum amount, and withdrawal fee must be checked.

The existence of a token with the same name on different networks also requires attention. A transfer on the wrong network can create a record that the receiving service does not support. It is not enough for the address format to be accepted. The network name on the recipient’s deposit screen must match the sender’s withdrawal option.

Distinguishing price from market capitalization

Unit price alone is not a measure of cheapness. Hypothetically, a $0.10 token with a circulation of 1 billion units has a market capitalization of $100 million. A $10 token with 1 million units in circulation has a value of $10 million. The lower unit price did not mean a smaller total value.

Market capitalization also does not indicate that all assets can be sold at the same price. If liquidity is low, large sales can drive the price down. Additionally, tokens to be unlocked in the future can increase circulation. Price gives more meaningful results when examined together with existing supply, new production, and transaction depth.

Which questions should be answered before starting?

What is the purpose of the asset? Who has the authority to mint new tokens or stop transfers? Who will manage the keys? How much will be paid in total for buying, selling, and withdrawing? If the answers to these questions cannot be found, trading just because the price is rising would be making a decision with incomplete information.

To learn, it is useful to first understand how a small transfer and a simple purchase transaction work. Leverage, lending, or complex bridge transactions are not mandatory for beginners. Crypto assets do not automatically carry the same protections as bank deposits; technical access, market price, and service provider risks exist separately.

Breaking down the total cost of a transaction

Hypothetically, you might pay a 2 TL transaction commission on a 1,000 TL purchase, and then an additional network or platform fee when withdrawing to a wallet later. These are not the same expense. The first fee is related to the trading service, and the second is related to the withdrawal. The phrase “zero trading commission” does not indicate that the entire process is free. The difference between the purchase price offered by the platform and other offers in the market also affects the net amount you receive.

Sources

• Bitcoin.org: Transfers on an open network
• Ethereum: Network and applications
• Ethereum: Wallets
• Ethereum: Stablecoin structures