Bitcoin, as well as all other major cryptocurrencies that came after it, is built upon public-key cryptography, a cryptographic system that uses pairs of keys: public keys, which are publicly known and essential for identification, and private keys, which are kept secret and are used for authentication and encryption.
Major cryptocurrencies like Bitcoin, Ethereum and Bitcoin Cash function using three fundamental pieces of information: the address, associated with a balance and used for sending and receiving funds, and the address’s corresponding public and private keys. The generation of a Bitcoin address begins with the generation of a private key. From there, its corresponding public key can be derived using a known algorithm. The address, which can then be used in transactions, is a shorter, representative form of the public key.
The private key is what grants a cryptocurrency user ownership of the funds on a given address.
The security of this system comes from the one-way street that is going from the private key to the public address. It is not possible to derive the public key from the address; likewise, it is impossible to derive the private key from the public key. In the Blockchain.com wallet, your 12-word recovery phrase is a seed of all the private keys of all the addresses generated within the wallet. This is what allows you to restore access to your funds even if you lose access to your original wallet. Using the backup phrase will copy over your private keys to a new wallet, essentially creating an exact replica of your original wallet, complete with used addresses and transaction history
The bid price is the highest price that a particular buyer is willing to pay for a specific product or service. In the context of financial/crypto markets, it is the value buyers offer for an asset, such as a commodity, security or cryptocurrency.
The asking price is the minimum price that an individual would be willing to sell their asset, or the minimum amount that they want to receive in return for the unit(s) they are parting with.
Here you can see all of your open orders. To cancel an open order, just click the ‘X’ symbol next to it.
Limit order gives you the power to set a specific price at which you would like to buy or sell the desired amount of cryptocurrency.
A market order is an order type that enables you to buy or sell at the best available market price.
A Stop Loss Limit order is designed to limit your loss on a cryptocurrency position. A Stop Loss Limit order can be placed to buy or sell a specific cryptocurrency at your entered price (a limit order) once that cryptocurrency reaches a certain price.
A take profit limit order is an order put in place by traders to maximize their profits and protect their profits on positions. A take profit limit order allows you (a trader) to set your custom made Buy or Sell order. You have to set two prices - the Trigger Price and the buy/sell Price.