Bitcoin blockchain pruning - How to reduce Bitcoin core ...

Unconfirmed Bitcoin Transaction

Hey everyone, I'm new to reddit so I'm not sure if this is the correct place to ask my question...but it is related to an unconfirmed Bitcoin transaction.
Details- On December 29th, ~11 PM (Eastern Standard Time), I sent ~.5 bitcoins FROM my desktop wallet (Bitcoin Knots) TO my account on Binance (exchange).
When I view my TRANSACTIONS page in my Bitcoin Knots wallet, I see the following information -
Status: 0/unconfirmed, in memory pool Date: 12/29/2017 23:07 To: Binance 19x7XhTaLRWuBZsLfkHRP8yhQPk7q8MAqu Debit: -0.50129628 BTC Transaction fee: -0.00049177 BTC Net amount: -0.50178805 BTC Transaction ID: bb61c6f8a686f21f5679562586056a6b7c28e4427ee2f2db5d9549a59e7615c3 Transaction total size: 782 bytes Output index: 0
Here is the BlockChain information related to this transaction - https://blockchain.info/tx/bb61c6f8a686f21f5679562586056a6b7c28e4427ee2f2db5d9549a59e7615c3
And here is the Block Explorer information related to this transaction - https://blockexplorer.com/tx/bb61c6f8a686f21f5679562586056a6b7c28e4427ee2f2db5d9549a59e7615c3
As you can see, the RECEIVED TIME is different across all three (the wallet, the first website, and the second website).
Could anyone explain what might be going on and how to fix this?
Just an FYI...I already performed the -rescan option on my "bitcoin-qt.exe" file. It did some "update database file" or something like that (which was about 2 hours ago) but still no confirmed transaction.
Oh yeah, one more thing, on my TRANSACTIONS page in Bitcoin Knots, the "Cancel Transaction" and "Increase Transaction Fee" is disabled/greyed out when I 'right-click' the transaction record - so, I'm not sure what that indicates either.
Any help is much appreciated!
Thanks!
submitted by Butt0nSmash3r to Bitcoin [link] [comments]

Backup Wallet.dat

"1) I can backup my wallet by exporting a wallet.dat file. Do I have to do this everytime I receive more BBP? Or just whenever I add a new key? 2) How do I add new keys? 3) Can I generate and see the private key so that I can write it down/print it and store it somewhere safe?" -znffal
1) think of your wallet.dat file as your passbook in a passbook savings account. You have to have that .dat file to be able to access (and prove you SHOULD have access) to the BBP stored in your account addresses. Exporting it once is all you need.
2) Adding new keys? The passphrase (password) you use is the only "key" you would have in an encrypted wallet (besides the .dat file). If you mean new addresses, you can get those by going under File and Sending (or Receving) Addresses and hit "new".
3) Clicking Encrypt Wallet will be where you choose a passphase, I don't know you can see it other than when you enter it.
To put a real world example or two.
Example One: You don't ever encrypt or backup your wallet. If I borrowed/stole/hacked your computer, I could send all your coins to my wallet (no passphrase).
Example Two: You encrypt your wallet with the passphrase "secret" but don't backup the wallet.dat file, then your computer crashes and you lose all your data. Since you didn't have a copy of the wallet.dat file, your coins would be lost.
Example Three: You backup your wallet.dat but don't encrypt it. Your computer crashes and all your data is lost, but you re-download the QT program, restore your wallet.dat, all your coins are still in you wallet. But if you lose your USB drive that has the wallet.dat on it, and I find it, I can put your wallet.dat on another computer and send all your coins to my wallet.
Example Four: You encrypt your wallet and back up the wallet.dat file. If I hack/borrow your computer, unless I guess your passphrase your coins are safe. If you computer crashes, your can restore your wallet.dat file to another computer and your coins are safe.
In short, Encrypt your wallet (passpharse) and then backup (copy) the wallet.dat file to at least two locations." -616westwarmoth
"Find your wallet.dat file, copy it to a flash drive or any other secure place. If your computer crashes, you'll always have the wallet.dat and can put it on a new machine. It will have to resync a bit when you do, but you'll never lose your "key" to the wallet. Speaking of keys, you should password protect your wallet and make sure to remember it!"
"Yes you must have a copy of the wallet.dat somewhere. So multiple back up copies are a good idea. If you lose the wallet.dat file the coins will be in limbo but there will be no way to recreate the file. One thing to remember is it doesn't matter if the wallet.dat file is "current", it can be 10 years old on a flash drive and you can download a new client, put the wallet.dat file into the machine and you'll be good." -616westwarmoth
"In addition to this, whenever you reboot the node after more than 24 hours of being synced, we back your wallet.dat up into the "backups" folder. This is useful if you ever accidentally delete your wallet.dat.
Also, if you want a paper backup, you can do a 'dumpprivkey accountaddress' command from the RPC." -Rob
"wallet is a collection of private keys"
"there are other ways to achieve high security. You can make a new wallet, encrypt it with a long password, send coins to it, put it on a flash drive and put it in cold storage, then download the hard drive cleaning program and erase the wallet.dat sectors from your PC. And of course, keep a printed copy of the private key on paper and put it in a safe. Put the usb in the safe also. Burn a cd rom with the wallet.dat file and put it in the safe." -Rob
How to safely back up your wallet https://dashpay.atlassian.net/wiki/spaces/DOC/pages/1867878/How+to+safely+back+up+your+wallet
Keep Your Crypto #SAFU (CZ's Tips) https://www.binance.com/en/blog/421499824684900429/Keep-Your-Crypto-SAFU-CZs-Tips
References: https://bitcointalk.org/index.php?topic=2042657.msg23955128#msg23955128 http://forum.biblepay.org/index.php?topic=27.0 https://bitcointalk.org/index.php?topic=2388064.msg27797529#msg27797529
To Read: https://en.bitcoin.it/wiki/Wallet https://en.bitcoin.it/wiki/Storing_bitcoins https://bitcoin.org/en/secure-your-wallet
NOTE: As of version 1.4.3.1 we have updated to HD wallets, so you should not need to worry about keypools anymore if you have upgraded
"Regarding the Sanctuary, you receive payments always to the same address (key), so the keypool is not consumed for those payments. But when you click to generate a new address on the "Receive" tab, one key will be deducted from the keypool. Also, sometimes new addresses are automatically generated and the keypool is consumed, for example when solo mining and finding a block, a new address could be used for the block reward.
You can always check your current keypool size by typing "getwalletinfo" in the RPC console and see "keypoolsize" and "keys_left". It's only concerning if they are a low number and you plan to generate new addresses in your wallet. They start from 1000. If the number gets too low, you can just type "keypoolrefill" to refill them back to 1000 and then you should backup the wallet. But from my experience the wallet automatically refills the keypool from time to time (or after certain actions like transactions), because I see that my wallet file keeps getting larger and the "keys_left" returns to 1000.
The only issue is if you actively use your wallet on multiple computers (for example cloud mining or simply sometimes using the wallet on your laptop), then one wallet could refill the keypool with new addresses and the other one will not, or they will generate different new addresses. If I understand this correctly, for example, you could receive a payment on a new address generated in one wallet; your old balance will be there on both wallets, but only the one wallet where you generated the new address would show the new payment. Then you should copy the wallet.dat file to other computers, to update them.
If you use the wallet on just one computer, you should just backup the wallet from time to time (or when you see it has increased in size). Qt also backups wallet.dat automatically, those can be found in the folder %AppData%\BiblepayCore\backups, you will see that they also have timestamps in their names and possibly different sizes." -inblue
https://bitcointalk.org/index.php?topic=2388064.msg27391534#msg27391534
submitted by togoshige to BiblePay [link] [comments]

[uncensored-r/Bitcoin] Unconfirmed Bitcoin Transaction

The following post by Butt0nSmash3r is being replicated because some comments within the post(but not the post itself) have been silently removed.
The original post can be found(in censored form) at this link:
np.reddit.com/ Bitcoin/comments/7nb1cu
The original post's content was as follows:
Hey everyone, I'm new to reddit so I'm not sure if this is the correct place to ask my question...but it is related to an unconfirmed Bitcoin transaction.
Details- On December 29th, ~11 PM (Eastern Standard Time), I sent ~.5 bitcoins FROM my desktop wallet (Bitcoin Knots) TO my account on Binance (exchange).
When I view my TRANSACTIONS page in my Bitcoin Knots wallet, I see the following information -
Status: 0/unconfirmed, in memory pool Date: 12/29/2017 23:07 To: Binance 19x7XhTaLRWuBZsLfkHRP8yhQPk7q8MAqu Debit: -0.50129628 BTC Transaction fee: -0.00049177 BTC Net amount: -0.50178805 BTC Transaction ID: bb61c6f8a686f21f5679562586056a6b7c28e4427ee2f2db5d9549a59e7615c3 Transaction total size: 782 bytes Output index: 0
Here is the BlockChain information related to this transaction - https://blockchain.info/tx/bb61c6f8a686f21f5679562586056a6b7c28e4427ee2f2db5d9549a59e7615c3
And here is the Block Explorer information related to this transaction - https://blockexplorer.com/tx/bb61c6f8a686f21f5679562586056a6b7c28e4427ee2f2db5d9549a59e7615c3
As you can see, the RECEIVED TIME is different across all three (the wallet, the first website, and the second website).
Could anyone explain what might be going on and how to fix this?
Just an FYI...I already performed the -rescan option on my "bitcoin-qt.exe" file. It did some "update database file" or something like that (which was about 2 hours ago) but still no confirmed transaction.
Oh yeah, one more thing, on my TRANSACTIONS page in Bitcoin Knots, the "Cancel Transaction" and "Increase Transaction Fee" is disabled/greyed out when I 'right-click' the transaction record - so, I'm not sure what that indicates either.
Any help is much appreciated!
Thanks!
submitted by censorship_notifier to noncensored_bitcoin [link] [comments]

How To Trade Alt Coins With Binance Bitcoin Bitcoin Cash vs Bitcoin...The End of BTC? - Price Prediction & News CZ Binance's HUGE Mistake! They're Trying to CENSOR This Story!! Bitcoin Won't Pass $9,000, Making Proof Of Work Better And Crypto Prediction Market Upgrade Binance Crypto Exchange 50/50 Trading Tip Bad Bitcoin Takes Everywhere: From Key Storage to Block Size (Again) Fetch Bitcoin Exchange Data For Beginners Using Websocket Binance HACKED For 7000 BTC/$40 Million Binance Exchange Review - Why It's My MAJOR Exchange Of Choice

With 1MB block size and 10 minutes block time the size of the chain grows larger and larger. Hence the storage capacity needed to run a full node will only keeps increasing in the future. To overcome this issue Bitcoin core team have released a feature in version 0.11.0 called block file pruning. Block pruning allows one to run a smaller version of full blockchain. It does this by deleting the ... Height Age Version Miner Coin Base Text Transactions Block Size (kB) Weight; 651461: 12 minutes ago: 0x20200000: Huobi {_HZ/HuoBi/mmb ( PO O?:rG5 h>qz) a~ 2,848: 1,352.31: 3,993.29 Monitor metrics tied to the BTC & ETH blockchains, including Difficulty, Block Height, Transactions per Block, and Block Size. Create customizable, real-time alerts to be automatically informed of anomalous on-chain activity. Choose from 9 different ways to receive notifications, including our Telegram, Discord or Slack bots. Cooldown: Add a note: Disable this alert after it triggers once ... Currently, each block on the Bitcoin blockchain is able to contain 1mb of data, meaning that the block size of bitcoin is 1 megabyte. This means that there is a limit to how many transactions can fit in Bitcoin's blocks, according to the data contained in said transactions. But it wasn't always like this. The Bitcoin update 0.8.6 was officially launched this week, bringing welcomed news to the community. It’s not just about being affected by less bugs, it’s also about the changes made to the block size. It’s now possible to make as many as 27 free transactions per block, Coindesk reports, a big improvement when compared to the 0.8.5 version. Binance CEO Changpeng Zhao has apologized for causing concern among the crypto community when he openly spoke about the possibility of a rollback for the Bitcoin blockchain following confirmation of a hack leading to the theft of USD 40 million worth of bitcoins on its platform.. The rollback had caused a sharp backlash, particularly among Bitcoin-only communities, aghast at the very concept ... As a fact, most of us wouldn’t want to download the QT wallet and synchronized the whole Bitcoin Blockchain. The size of the Bitcoin blockchain is also ever increasing. As at the time of this post the size of Bitcoin blockchain is over 220,000 Megabytes! This is a lot of space to open a Bitcoin account. Can Bitcoin Account Be Frozen? Therefore, if a block consisted purely of signature data, the block size would be 4 mb, so this is now the upper limit on Bitcoin block size. However, the Merkle Tree transaction data accounts for most of the block size, and Bitcoin blocks are rarely larger than 2 MB. The first Bitcoin block over 2 MB occurred on 20 January 2018 at block height ...

[index] [17311] [18845] [1417] [16172] [7478] [18023] [1827] [14949] [22165] [23805]

How To Trade Alt Coins With Binance Bitcoin

How To Trade Alt Coins With Binance Bitcoin ... Watch in 360 the inside of a nuclear reactor from the size of an atom with virtual reality - Duration: 3:42. EDF in the UK Recommended for you. 360 ... Binance Cypto Exchange Basic Trading tips plus how to get started http://jmlbusinesspro.com/ Learn To Earn In Crypto Currencies. http://jmlbusinesspro.com ou... Binance is my major exchange of choice. I talk about why and the benefits of using Binance vs the competition. Click the link below to join Binance you'll be supporting the channel plus be open to ... Open An Account With Binance! https://www.binance.com/?ref=22170588 ----- Have A Ques... Top Bitcoin Core Dev Greg Maxwell DevCore: Must watch talk on mining, block size, and more - Duration: 55:04. The Bitcoin Foundation 20,012 views Use the link below to sign-up and apply and you will receive a $50 credit in bitcoin that can be applied towards any loan fees or interest. With loans starting at $500, the referral code could ... SUPPORT THE SHOW: Visit LEDN to check out getting a bitcoin-backed loan https://platform.ledn.io/join/0a00cca3dd61dea5909c95cd41f41685 Get Wasabi wallet and ... Our analysis begins with coverage of the SegWit2x debate over increasing the Bitcoin block size from a 1 MB to a 8 MB limit in order to decrease transaction times and ease the increasingly heavy ... CZ Binance makes the biggest mistake of his life!? This stranger than fiction story, involves CZ, Binance, Bitcoin, P2P Trading, China, Alipay, WeChat & the censorship of crypto media news outlets ...

#