科普：Taproot交易是什么

I haven't studied the script of Bitcoin seriously for a long time. Recently, I want to find out that I can't get around the transaction, so I have to read all of them. The most common bitcoin transaction is called paying to the public key hash, which is our bitcoin address, that is, the address at the beginning. If I want to pay through the transaction, I can explain the technical process of the transaction as follows. The address and the public key hash provide a bitcoin address, which is actually his public key. To unlock and lock the hash value, she needs to unlock the money from her purse, and then she will sign and unlock the locked public key hash when she creates a transaction. When she wants to spend it, she needs to sign with her private key to prove that he is the owner of this address, so that he can unlock the money and use it for a new transaction. Explain it to an open locked box, where the lock is the bitcoin address, and put it in this box and lock it, so that only. Only the person who has the right key, that is, the private key, can open it. When he wants to use it, he opens the box with his own key and private key, takes out the bitcoin and can choose to put it in another person's box for another transaction. The second common bitcoin transaction is called payment to script hash. We often use this transaction format to realize multi-signature. If we want to send it through the transaction format, we can explain the technical process of the transaction as follows: script hash instead of public key hash. In the transaction, funds are locked into a script. Hash is not a public key hash. This script usually contains multiple conditions, such as requiring multiple signatures, multiple signatures or meeting other specific conditions to create and send a transaction. For example, the sender will send bitcoin to this script hash address. This address is provided by the receiver, for example, and the script hidden behind this address contains the conditions needed to unlock these funds, that is, the original script of this script hash is owned, but the script will not be made public, but only the hash value of this script will be made public. This corresponds to the above public key hash unlocking funds. When the payee wants to spend these bitcoins, he will provide the original script, which is the unlocking script or redemption script. When the miner gets this original script, he can verify the transaction. In fact, the common explanation is that the lock on that box is different from the above, which allows customization and can build very complicated locks. For example, the most common multi-signature is to customize multiple unlocked keys and define how many keys to unlock. Using this transaction mechanism, we can customize various unlocking conditions by taking the script hash as a lock and the original script as a private key, which greatly improves the programmability of Bitcoin. Now it is explained that the cost condition of paying to the public key hash is to provide the private key signature corresponding to the public key, and the cost condition of providing the original script is a combination of paying to the public key hash and paying to the script hash, so it has two cost paths, that is, it can be a direct private key signature or it can be provided with the original. Script and the script is a binary tree containing a script. When it is spent, it provides a leaf node of the tree, and the script and tree path can be spent, so that the transaction can define more complicated spending conditions and the programmability of Bitcoin will be richer. 比特币今日价格行情网_okx交易所app_永续合约_比特币怎么买卖交易_虚拟币交易所平台

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