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how to watch bitcoin transactions? looking for a friend..
I'd like to watch bitcoin transactions (incoming and outgoing) for a specific set of addresses, asynchronously. Blockcypher has a REST-API that works fine, as well as a WebSocket API that doesn't really work at all (see also here). I also created a fiddle. The only events that work are `ping` and `unconfirmed-tx`. Is there any other event-based API that actually works, or do I really have to run my own full node? PS - Go ahead and abuse my blockcypher API key ;) The reason I included it is, because without the key not even the `unconfirmed-tx` event works. Also it's a free-tier key, so you won't be able to do anything fancy with it. :)
Now that you’ve set up your bitcoin wallet and are ready to make your first transaction, let’s take a look at how bitcoin transactions actually work. There are three key variables in any bitcoin transaction: an amount, an input and an output. An input is the address from which the money is sent, and an output is the address that receives the funds. Since a wallet can contain several input addresses, you can send money from one or more inputs to one or more outputs. There is also a data storage portion on each transaction, a sort of note, that allows you to record data to the blockchain immutably. But the unique thing about bitcoin transactions is that, if you initiate a transaction that’s worth less than the total amount in your input, you get your change back not to your original output, but through a new third address in your control. This means your wallet typically ends up containing multiple addresses, and you can pull funds from these addresses to make future transactions. You’ve learned how to buy and store your bitcoins, so you already know what public and private keys are for, and you’ll need these to issue a transaction. To do that, you put your private key, the amount of bitcoins you want to send and the output address into the bitcoin software on your computer or smartphone. Then the program generates a signature made from your private key to announce this transaction to the network for validation. The network needs to confirm that you own the bitcoin being transferred and that you haven’t spent it by checking all previous transactions which are public on the ledger. Once the bitcoin program verifies that indeed your private key corresponds to the provided public key (without knowing what your private key is), your transaction is confirmed. This transaction is now included in a “block” which gets attached to the previous block to be added to the blockchain. Every transaction in the blockchain is tied to a unique identifier called a transaction hash (txid), which looks like a 64-character string of random letters and numbers. You can track a particular transaction by typing this txid in the search bar on the blockchain explorer. Transactions can’t be undone or tampered with, because it would mean re-doing all the blocks that came after. This process is not instantaneous. Because the bitcoin blockchain is fairly large, it takes a lot of time to process a single transaction among the many on the blockchain. The amount of time it takes to confirm a transaction varies, ranging anywhere from a few minutes to a couple days, based on traffic on the blockchain and the size of your transaction. Larger transactions with higher fees tend to get validated by miners quicker than smaller ones. That said, once it is confirmed, it is immutably recorded forever. If you want to indulge in some mindless fascination, you can sit at your desk and watch bitcoin transactions float by. Blockchain.info is good for this, but try BitBonkers if you want a hypnotically fun version.
📈 This week we witnessed the largest Bitcoin transaction in history. How much was the transaction fee and how did it affect the price of BTC? Find out here: https://www.youtube.com/watch?v=6mNJp2x7tZg&lc=Ugy51JbBZAMByb0ePG94AaABAg
How to validate your transactions on the Ledger? All the answers are here: https://www.youtube.com/watch?v=QPUODXvUYRA #volentix #vdex #vespucci #verto #venue #bitcoin #eos #dex #crypto #decentralized #p2p
See that vertical blue line at $25 (against the bottom horizontal)? That represents standing sell orders on Mt. Gox. And if you look to the right, that wall represents the number of dollars that would have to be spent to surmount $25, and it amounts to nearly half-a-million. Someone's got their cash-out ready and waiting. This is Mt. Gox's live-graph, it even shows orders in real time that pop up over the graph. It's mesmerizing :) watching bitcoin transactions in real-time. The dollar figure at right shows how much money would need to be spent in buy orders to achieve the bitcoin-price on the bottom, and the blue line graphs this. The yellow line charts how much money would have to be taken out in sell orders to go down in btc price, and the green line shows trade volume, with left being sells and right being buys. ***Edit: You guys make great points, and I learned something. Post retracted!
The most popular and trusted block explorer and crypto transaction search engine. A Watch Only Bitcoin Wallet. Just like any other Bitcoin wallet, a watch-only wallet, as the name suggests, is used to monitor Bitcoin transactions. By monitor, I mean monitor only. The unique features of a watch-only wallet relate to the absence of private keys. Hence, a watch-only wallet cannot be used to spend any Bitcoin associated with the ... It's cool to watch bitcoin transactions as they're happening. You can see the current transaction rate, as well as how much money is being moved per second. Personally, I use it to watch and wait for the next block to get mined. Are these transactions really live? Yes. I do add a tiny delay between transactions to create a smoother rain effect ... blocks.wizb.it – Watch the world jerk around wildly before your eyes taking you to bitcoin transactions as they happen across the globe. Amount, time, miner info and relay location are listed. The most popular and trusted block explorer and crypto transaction search engine.
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