BTC authentication transaction

1. API keys are used to program transactions. One time password, with Google verifier. Download Google verifier to your mobile phone and install it. Scan the two-dimensional code with a verifier to get a one-time password. studybtc

2. First of all, you need to download an exchange. It's suggested to register in the exchange. After all the authentication, you can trade in legal currency. Here you can buy bitcoin directly, or you can buy TEDA currency. You can trade in bitcoin and change it into bitcoin. You can download it again!

3. Bitcoin receives payments almost instantaneously. However, there is an average delay of 10 minutes before the network starts adding your transaction to a block to confirm the transaction and that you can use the received bitcoin. Confirmation means that there is a consensus on the Internet that the bitcoin you receive is not used to pay others, so it is recognized as your property. Once your transaction is included in one block, all subsequent blocks will include it, which will greatly consolidate this consensus and rece the risk of transaction cancellation. Each user can determine the time when the transaction is confirmed, but generally speaking, receiving six confirmations is as safe as waiting six months after a credit card transaction
anyone can become a bitcoin miner by running software on specialized hardware. mining software monitors transaction broadcast through P2P network and performs appropriate tasks to process and confirm these transactions. Bitcoin miners can earn transaction fees paid by users to speed up transaction processing and additional bitcoin issued according to fixed formula

new transactions need to be included in a block with mathematical workload proof before they can be confirmed. This kind of proof is hard to generate because it can only be generated by trying billions of calculations per second. Miners need to run these calculations before their blocks are accepted and rewarded. As more people start mining, the difficulty of finding effective blocks will be automatically increased by the network to ensure that the average time to find a block remains at 10 minutes. Therefore, the competition for mining is very fierce, and no indivial miner can control the content contained in the block chain
workload proof is also designed to rely on previous blocks, which forces the time sequence of block chain. This design makes it extremely difficult to cancel previous transactions, because the workload proof of all subsequent blocks needs to be recalculated. When two blocks are found at the same time, the miner will process the first block received, and once the next block is found, it will be transferred to the longest block chain. This ensures that the mining process maintains a global consistency based on processing capacity
bitcoin miners can neither increase their rewards by cheating, nor deal with the fraulent transactions that destroy the bitcoin network, because all bitcoin nodes will reject the blocks containing invalid data that violate the bitcoin protocol rules. Therefore, even if not all bitcoin miners can be trusted, the bitcoin network is still secure
if you still don't understand, go to bitcoin home to see the deeper understanding of netizens.

4.

Transaction mode of bitcoin

bitcoin is e-cash similar to e-mail, and both parties need "bitcoin wallet" similar to e-mail and "bitcoin address" similar to e-mail address. Just like sending and receiving e-mail, the remitter pays bitcoin directly to the other party through a computer or smart phone according to the recipient's address. The following table lists some websites that download bitcoin wallets and addresses for free

a bitcoin address is a string of about 33 characters long, consisting of letters and numbers, always starting with 1 or 3, such as & quot& quot; Bitcoin software can generate address automatically, and it doesn't need to exchange information online, so it can be offline. More than 2 bitcoin addresses are available. Figuratively speaking, there are about two grains of sand in the world. If there is an earth in each grain of sand, then the total number of bitcoin addresses far exceeds the number of all the sand on all these "earths"

the bitcoin address and private key appear in pairs, and their relationship is just like the bank card number and password. A bitcoin address is like a bank card number, which records how much bitcoin you have on it. You can generate bitcoin address at will to store bitcoin. When each bitcoin address is generated, a corresponding private key of the address will be generated. This private key proves that you have ownership of the bitcoin at that address. We can simply understand the bitcoin address as the bank card number, and the private key of the address as the password of the corresponding bank card number. Only when you know the bank password can you use the money on the bank card number. Therefore, please keep your address and private key when using bitcoin wallet

after the transaction data of bitcoin is packaged into a "data block" or "block", the transaction is initially confirmed. When a block is linked to a previous block, the transaction is further confirmed. After six block confirmations in a row, the transaction was irreversibly confirmed. Bitcoin P2P stores all transaction history in a "blockchain.". The blockchain continues to extend, and once new blocks are added to the blockchain, they will not be removed. Blockchain is actually a distributed database composed of a group of scattered client nodes and all participants, which is a record of all bitcoin transaction history. Nakamoto predicts that when the amount of data increases, users hope that not all the data will be stored in their own nodes. In order to achieve this goal, he uses the hash function mechanism. In this way, the client will be able to automatically eliminate those parts that it will never use, such as some very early bitcoin transactions

5. No, the transaction that belongs to you, that is, your utxo will be saved to your bitcoin wallet file, and each payment will be found from your wallet database. If you lose the contents of your wallet, you can use your key information to access the service node to retrieve your utxo. If you lose the key, don't worry.

6. The ID of bitcoin transaction you said should be the address of bitcoin wallet. If the address of bitcoin wallet is wrong, you can't send out bitcoin, it will prompt you to go wrong. Another is that bitcoin transactions will be broadcast all over the network. The records of bitcoin transactions can be queried by anyone and cannot be modified

a bitcoin address is like a physical address or an e-mail address. This is the only information you need to provide when someone pays you bitcoin. An important difference, however, is that each address should only be used for a single transaction

block chain is a public record of bitcoin transactions in chronological order. The block chain is shared by all bitcoin users. It is used to verify the permanence of bitcoin transactions and prevent double consumption.

7.

Uddt and cnyt are both. There are also

1. what is usdt

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usdt is a token of tether USD (hereinafter referred to as usdt) launched by tether company, which is based on the stable value currency USD. 1usdt = 1 USD. Users can exchange usdt with USD 1:1 at any time. Tether company strictly abides by the 1:1 reserve guarantee, that is, for every usdt token issued, its bank account will have a capital guarantee of $1. Users can query funds on the tether platform to ensure transparency. Users can transfer US dollars to the bank account provided by tether company through swift or exchange for usdt. When redeeming US dollars, reverse operation is enough. Users can also exchange bitcoin for usdt at the exchange

usdt is a digital asset based on Omni layer protocol released on bitcoin blockchain. The biggest feature of usdt is that it is equivalent to the same amount of US dollars. Usdt is designed as a replica of legal money on the digital network, making it a good hedge token in the volatile cryptocurrency market

2. Features

intuitive: usdt and US dollar are equivalent, 1 usdt = 1 US dollar. Each currency = usdt, which is equivalent to its unit price of US dollars

stable: because TEDA currency is supported by legal currency, users can still trade in the blockchain asset market without being affected by the price fluctuation of most blockchain assets

transparency: tether, the issuing company of TEDA coin, claims that its legal currency storage account is regularly audited to ensure that each TEDA coin in circulation is supported by a corresponding US dollar. The storage account status is public and can be queried at any time. In addition, all TEDA transaction records will be published on the public chain

small transaction costs: there is no service charge for transactions between tether accounts or between wallets with TEDA coins. A transaction service fee is required to convert TEDA currency into legal tender

8. Blockchain is a technology and bitcoin is a proct
the proct has been finalized, you can only choose to accept or not, but the technology can be applied to all walks of life

9. It's an activity that coin an had before, and it's still going on. It's used to reward the members of coin an contract alliance who have performed well.

10. To haobtc!