Bitcoin core 0.11.2 (bitcoind --help) prints the following: -blocknotify=<cmd>
Execute command when the best block changes (%s in cmd is replaced by
block hash)
I was wondering what this "best block" would be, but funny: I did not find anything about it in the internet. So does anyone know what this 'best block' is? Why should one use the notification for it? I enabled it to notify me via email, but it spams, so I disabled it. I believe the "best block" is the valid block with the highest height. Not necessarily. The best block is the block whose blockchain has the highest sum of work. The block has a parameter to indicate its difficulty and the longest blockchain is the blockchain that has the highest sum of those parameters. The best block would then be the block at the tip of that blockchain. |
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Anyone can do that now. You can orphan blocks mined by other miners now, it makes no difference. Again, consensus. Same thing happens with hard forks.
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They will probably upgrade. As I said before, and I will say it again, consensus.
So really what is the difference in the forking between a hard fork and a soft fork? The Core nodes can proceed as they did because their chain is orphaned. Any blocks produced by the core nodes are ignored by the Classic nodes. The core nodes, if they are able to build extend their own chain, or at least build a block on top of a core block, results in their chain completely separating from the classic chain since they have a different block history. It splits, much like a hard fork.
It seems you still have not get the fundamental difference here, and it is indeed difficult, because you have to first understand the most technical intensive part, e.g. the old nodes do not know at all that there is a new chain forming It is dangerous to do a hard fork with only 51% hash power, because it will end up with 2 chains and you can not guarantee that your chain will win eventually. So you must seek major consensus before you fork. However, you don't need major consensus to do a soft fork, only 51% hash power. In fact the name is misleading, there will be no fork in a "soft fork". You can be rest assured that there will never be a competing chain, e.g. even the other 49% of mining hash power disagree with the new chain, they can not fork their own chain, because all their nodes regard new chain to be the longest valid chain, or to say, old nodes do not know it is already a new chain, they thought that they are still working on the old chain, the only difference they will notice is that suddenly all their mined blocks are orphaned one by one Not true, just look at the July 4th fork for an example of a fork that happens with soft forks. Blocks that are mined by the nodes with the old rules are invalid by the new rules. But if there are enough miners mining old blocks, then they could still be extending the old chain. In fact, if they were able to extend the old chain, you would end up with two different blockchains because the histories are different. Once an old block is inserted into the blockchain and miners extended on that, it would fork since the blockchain of new blocks is invalid since it has a different history. Likewise, the chain of old blocks is invalid to the other miners because they are old blocks. |
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Ok, good to know, so could there be any alternatives? I've heard about cloud mining, but I'm not entirely sure how that works.
Buy ASIC miners which are dedicated mining hardware. 99% of cloud mining services are scams so stay away from them. |
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I was surprised by the latest announcement of Pieter that a SegWit implementation which changes pretty much everything in bitcoin can be implemented via a soft fork, where it does not require all the nodes to upgrade to be compatible
After a bit research, this is possible because you can always give old data new meaning in a new implementation, while the old nodes simply do not know how to parse that data
In principle, with this method, you can move all the transaction data out of the block, not only signature data, so that old nodes always see empty blocks
As a result, a new block will be accepted by the old nodes because they appear to be valid blocks, but in the new implementation, they are just a small subset of the new data structure, all the transaction data is in another related block
More importantly, after further analysis, it shows that although normal nodes can still run old client, all the mining nodes will have to upgrade, otherwise the blocks mined by them will simply be orphaned, because the new nodes do not accept old blocks, and new nodes have majority of hash power
As a result, such a soft fork is to force 100% of the mining nodes move to the new implementation so that there is no slightest chance of the old mining nodes forking into their own chain: Their fork will always be orphaned since they accept the longest chain
The same happens with hard forks as well. Deployment requires consensus. What this means in practical?
If one type of nodes, Classic for example, controls over 51% of hash power, they can implement whatever change they like by simply use this soft fork trick: Let all the old Core nodes accept their new format blocks while Classic nodes will reject Core blocks, so that Core blocks all get orphaned due to less hash power
Again, deployment requires consensus, as it does with hard forks. The most deadly part is that Classic nodes do not need to ask for permission of Core nodes, they simply enforce it by orphaning blocks mined by those Core nodes. And Core nodes have no way to fork into another chain by rejecting Classic blocks, since they can not tell which block is Core block and which block is Classic block
Anyone can do that now. You can orphan blocks mined by other miners now, it makes no difference. Again, consensus. Same thing happens with hard forks. As a result, a miner running core will simply lose money, he either trash his miners and quit the game, or bite the bullet and upgrade to Classic so that his hash power can still mine him some coins. I guess majority of the miners will upgrade. And they might start another round of similar soft fork to regain control when they accumulated more than 51% of hash power
They will probably upgrade. As I said before, and I will say it again, consensus. This is very bad, since it totally removed the freedom of choice for those old mining nodes, you can call it a forceful take over of bitcoin network rules by 51% hash power. It totally break the major consensus rule and the spirit of bitcoin, so that with only 51% of hash power, you can implement whatever you want and force it upon rest of the miners and their hash power will be captured
So really what is the difference in the forking between a hard fork and a soft fork? The Core nodes can proceed as they did because their chain is orphaned. Any blocks produced by the core nodes are ignored by the Classic nodes. The core nodes, if they are able to build extend their own chain, or at least build a block on top of a core block, results in their chain completely separating from the classic chain since they have a different block history. It splits, much like a hard fork. Sure, Core nodes can change to another PoW fork, but since the value of the coin is always roughly the same as the mining cost due to arbitraging, that coin will not get more value than litecoin and will be forgotten quickly
Unfortunately, it is almost impossible to prevent such thing from happening by current design, so it is very important in mining community to widely spread this information so that miners are fully aware of the deadly effect of a soft fork, and reject such attempt as much as possible. At mean time, trying to find a solution to fix this security vulnerability
And how would you propose to fix this? It isn't a security vulnerability, it is an issue with forking that is not able to be resolved due to the nature of forking. It isn't really any worse than hard forks are, but with the backwards compatible nature of soft forks, not all nodes are required to upgrade, only mining nodes. Hard forks require that all nodes upgrade. Again, the way that both hard forks and soft forks are deployed are with consensus. Neither one is deployed unless a supermajority of the blocks indicate support for the fork. The deployment is the same with both forks. I don't see how a soft fork is worse than a hard fork. tl;dr All forks are dangerous and all forks must be deployed with consensus otherwise problems happen. Applies for both hard and soft forks. |
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I can do this for you. I have setup insight block explorers and apis in the past, although those sites are no longer running as they were for now-defunct altcoins. I would recommend that you use Amazon AWS mostly because I am very familiar with the way that they work. Of course, you should run the instances with your AWS account. As for cost, I created an estimate of the costs to run it on aws here: http://calculator.s3.amazonaws.com/index.html#r=IAD&s=EC2&key=calc-8E5EAF6C-B535-4315-B2D2-9521C361ED40. It is around $50/month to run. For setting it up, I would charge you 0.02 BTC since it is a relatively simple job. It will take a long time for it to be usable. The downloading and indexing of the blockchain and all of the transactions will take quite some time, but that is all done automatically. |
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ok
communism
your leaders tell you the only way to expand the community is to take all the bitcoin, and then hand out more friendlier and faster "liquids", telling you its better for the community
(blockstream 2017-hopefully not)
socialist
you keep half your bitcoin or code knowledge/time and use the other half to help others
(bitcoinQT 2009-2014)
I think you got your socialism and communism backwards. Socialism is where you have a leader tell you what to do, communism is where you do the social policies on your own volition. |
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You can use the createustxtoaddress and createustxformany commands to create unsigned transactions for 1 recipient and many recipients respectively.
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Its still a full node and its still fully operational. Sounds like the port is block by a firewall.
It's at McD ( again  ), so it is almost certainly that. As I see it, the sequence is this. Start the core Load the block index Verify the blockchain on disk Start looking for peers, and stop when you have found eight. Synchronise with the public blockchain Sit there doing its thing. Looking at the network traffic analyser, there is loads of green, and a very small amount of red. Isn't the green downloaded packets, and the red uploads? That seems to indicate bidirectional traffic. So does the fact that inbound connections are blocked mean that I can go looking for peers, but nobody can try to find me? ( I'm guessing here. ). Yes. An outbound connection means that you initiated the connection and then the downloaded data is all technically replies to your requests. Any connection which is initiated by someone else is not allowed by firewalls unless port forwarding is enabled. |
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i mean, something which adds validity of the owners,
although others have a private key or someone managed to open wallet.dat,and something that maintain privacy in network transactions.
If one can't keep their private keys safe or your wallet password safe, what makes you think that they would be able to protect their PGP key safe to prove ownership of the keys or wallet? As far as privacy of network transactions, how do you envision pgp helping? so PGP also does not help us in the validity of the ownership outside Bitcoin, in the file and the signature? It does not because it does exactly the same thing that bitcoin private keys does with signatures. |
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Some providers of free WiFi cap data transfers. O2 provides the WiFi for McDonalds ( and others) in the UK, and they have a 10Gb per month cap. Running a full node, and viewing and uploading Youtube video clips could use this up. Hopefully prudent use of a pruned node will provide a small reduction indata transfers, and reduce the demands on the computer.
Pruning will not really affect that since pruning is only a local thing on the disk. If still downloads the entire blockchain and AFAIK it will still relay new blocks and transactions. The pruning aspect is that it just won't save the entire blockchain on the disk but rather delete part of it. |
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You earn Bitcoin by doing work, it is earned the same way that you earn normal fiat money. You do provide some sort of good or service and someone will pay you for it. If you have a skill that you can do like coding, writing, drawing, etc, then offer it up in the services section and other sites where you can offer your services and people will ask you to do work and you will get paid for it. Or you can sell a bunch of stuff.
Other ways to earn Bitcoin are converting fiat into it, or trading.
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Are you sure on this? It seems if an address receives a bunch of carded merchandise even if through wishlist they would look into it. I guess the carding aspect scares me on it.
They do look into it I suppose, but with physical goods, the time to prepare and ship those products is usually enough time for their fraud detection stuff to catch carders so much of the stuff you buy won't actually be carded. Although if you are scared of carders purse has an instant option which gives you only a 5% discount. This I believe is actually paid for by purse so they won't be using stolen credit cards. Also, I think that purse will cover you if you do happen to be under investigation for supposedly carding stuff. They will pay up to $10,000 for any unexpected costs like legal fees if you happen to be taken to court over buying stuff on purse because the goods were carded. My fear of it is they see X address is getting a lot of carded merchandise. It seems like eventually amazon would not ship to address. They track a lot of things and I'm sure amount of carded merchandise is on there. I just can't wrap head around why anyone would pay 20 percent over BTC value through this unless it was carded. They could go to LBC for less then 20 percent over I would think on buying BTC. Well it isn't always 20%. A lot of people do less than that and some even buy the stuff as close to the real price as possible. There are people who set the minimum discount so they are pretty much paying the real price. |
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Yep this is the same guy I was speaking to. I changed my pw and when I entered ot incorrectly I freaked out and thought I was hacked. Ended up waking up today entered correct pw and changed pw again just to be safe.
Yeah, I just did pretty much the same thing. I typed in the password incorrectly when I set it so I had to reset the thing by email after I logged out to test it. Plus ran a scan o my PC and removed 2 Trojans and a downloader virus that may or may not have come from that link
I should do that too. |
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Please change your account password asap ... Recently letyouearn lost the account when he clicked the link. https://bitcointalk.org/index.php?topic=1339269.0Similiarly yahoo62278 was also going to lose his account but he changed the password early. Interesting. Well, even though I didn't run the program, I still changed my password just to be safe. |
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What can I use? I want to use on Tor Network. Therefore "anonimty" is important.
What do you suggest? Simply and Easy?
You could keep using Bitcoin Core but the syncing will take a while so it will be a few hours to a few days before you can actually use it. Otherwise, I suggest that you use electrum. It can also be proxied to use Tor so that you are anonymous. |
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What happened:: I was contacted by this person who said he was asking me to work with him by being an admin at an online casino. We exchanged skypes and then he told me to visit the casino web page. The site is btcluckycasino.com/ (<--- BEWARE, POTENTIALLY MALICIOUS SITE) which is an exact clone of https://www.luckybtccasino.com/, down to the links and everything. This site is potentially a phishing site for luckybtcasino user's logins. Then he directed me to the admin page btcluckycasino.com/admin.php(<-- BEWARE MAY CONTAIN MALWARE) where the page required that the user download adobe flash in order to access the page. Of course I downloaded the file, but did not run it. This is the result of a virustotal scan on it: https://www.virustotal.com/en/file/fe8228f67b1faae45dffe7f1aa754d89650b4d20c67f2dc1033683b1aae9663c/analysis/. At this point, I told him this was very suspicious, he claimed it was to "get users" and that he had "coders" who made the site which made it look like that and have that behavior. Scammers Profile Link: https://bitcointalk.org/index.php?action=profile;u=739421Reference Link: Amount Scammed: Payment Method: Proof of Payment: PM/Chat Logs: PMs: Hello, I have my own project which will became very famous bitcoin casino soon. I need serious people who will help me with it.
admin(you) should moderate some parts of forum/play on my casino/help me with some things/say me if he detect bugs to fix it and e.t.c I pay 2000$ per mounth also admin have to give me soviets/advices
my skype is damon3228 Seems interesting. What is the website and how successful do you think it will be? I will take a look. I don't really have a lot of time right now, but I should have some more time in a week or two. I can still help out during that time though, just maybe not as much as I could. btcc
btcluckycasino.com/ thats my casino
do you have skype or telegram !!! WARNING: This user is a newbie. If you are expecting a message from a more veteran member, then this is an imposter !!!
btcc http://btcluckycasino.com/ thats my casino I will take a look. do you have skype or telegram
I have a skype, but I don't know if I can still login to it. I will let you know in a few minutes. Skype: [5:04:11 PM] Pasha BitcoinTry Main Admin: Hello
[5:04:28 PM] A C: hello
[5:05:58 PM] Pasha BitcoinTry Main Admin: knightdk
[5:06:00 PM] Pasha BitcoinTry Main Admin: ?
[5:06:03 PM] A C: yes
[5:06:11 PM] Pasha BitcoinTry Main Admin: so you looked on my site?
[5:06:14 PM] Pasha BitcoinTry Main Admin: what can you say
?
[5:06:42 PM] A C: I have looked at it briefly, not in depth yet.
[5:06:51 PM] A C: I am currently a little busy with some other stuff though
[5:07:26 PM] Pasha BitcoinTry Main Admin: okay I just saying : I need from you 2-3 hours online .I pay 1.5 btc per week of working,
[5:08:07 PM] A C: is that 2-3 hours per week or per day?
[5:08:39 PM] Pasha BitcoinTry Main Admin: 5-6 hours per week
[5:09:52 PM] A C: I will be able to do that, although the times I am online might not be very consistent
[5:09:57 PM] A C: What is it that you need me to do?
[5:11:35 PM] Pasha BitcoinTry Main Admin: you have to do some not hard things, its will not take much time , I described all you need to know in Admin panel FAQ
[5:11:41 PM] Pasha BitcoinTry Main Admin: sec I will give you access to admin panel
[5:11:59 PM] A C: do I need to register?
[5:12:14 PM] Pasha BitcoinTry Main Admin: nope I will give you logs from admin panel
[5:12:20 PM] A C: k
[5:12:36 PM] Pasha BitcoinTry Main Admin: btcluckycasino.com/admin.php
user : admin322
pw : 2216727y0025kf2nms1jkjghf9112*5412
[5:15:07 PM] A C: seems very suspicious. The admin panel requires an old version of adobe flash.
[5:15:16 PM] A C: your site is a clone of luckybtccasino.com
[5:15:57 PM] A C: no site for an admin panel should require adobe flash
[5:16:03 PM] A C: it is simply bad design
[5:16:32 PM] Pasha BitcoinTry Main Admin: Yea codders said me what their admin panel requires 15 version of flash player- I updated it
also yeah its looks like luckybtccasino but I will change desighn on this week , some group of codders making uncial desighn for my casino
[5:16:38 PM] Pasha BitcoinTry Main Admin: they said tomorrow
[5:16:41 PM] Pasha BitcoinTry Main Admin: its will be finished
[5:16:49 PM] Pasha BitcoinTry Main Admin: don't worry man
[5:18:33 PM] Pasha BitcoinTry Main Admin: I did it like luckybtccasino to advertise for beggining
[5:18:37 PM] Pasha BitcoinTry Main Admin: i will change it soon
[5:18:56 PM] Pasha BitcoinTry Main Admin: you can see new types of desighn in admin panel I'm added here exemples
[5:18:57 PM] A C: I am calling bullshit on this one
[5:19:14 PM] A C: everything on the site links to luckybtccasino, not to btcluckycasino
[5:19:51 PM] Pasha BitcoinTry Main Admin: ye its only for now to get traffic/and users
[5:21:28 PM] A C: No, it does not. In no way shape or form would having every single thing that is a link on that page be linked to luckybtccasino be able to get users.
[5:21:44 PM] Pasha BitcoinTry Main Admin: i will fix it tomorrow..
[5:22:04 PM] Pasha BitcoinTry Main Admin: also I'm going to buy advertising for 5000$ so our casino will get famous soon
[5:22:08 PM] Pasha BitcoinTry Main Admin: and we get very good profit
[5:23:36 PM] A C: I will check tomorrow. If it still requires flash and is an exact clone of luckybtccasino in 24 hrs, then I will be opening a scam accusation against you
[5:24:23 PM] Pasha BitcoinTry Main Admin: whats your problem lol
[5:24:55 PM] A C: In fact, I think I might just do that now to prevent you from being able to potentially scam people.
[5:25:05 PM] A C: The problem is that your site has every indication of being a scam attempt
[5:25:19 PM] A C: You ask people through PM to work for you for a really nice pay.
[5:25:33 PM] A C: Then you direct them to an admin page which requires that the person downloads a software that is probably a virus
[5:25:51 PM] A C: The site itself is an exact clone of luckbtccasino.com's frontpage
[5:26:00 PM] Pasha BitcoinTry Main Admin: look
[5:26:03 PM] A C: It even has all of the links and such still pointing to luckybtcasino
[5:26:03 PM] Pasha BitcoinTry Main Admin: beside
[5:26:03 PM] Pasha BitcoinTry Main Admin: you
[5:26:06 PM] Pasha BitcoinTry Main Admin: IT IS A BEAR
[5:26:24 PM] A C: need I say anymore? Additional Notes: This is probably a scheme that he will be attempting on many other users to get them to download the software which is probably malware. Whois lookup of the site: Domain name: btcluckycasino.com Domain idn name: btcluckycasino.com Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibitedRegistry Domain ID: Registrar WHOIS Server: whois.reg.com Registrar URL: https://www.reg.com/Registrar URL: https://www.reg.ru/Registrar URL: https://www.reg.ua/Updated Date: 2016-01-24 Creation Date: 2016-01-24T16:46:54Z Registrar Registration Expiration Date: 2017-01-24 Registrar: Registrar of domain names REG.RU LLC Registrar IANA ID: 1606 Registrar Abuse Contact Email: abuse@reg.ruRegistrar Abuse Contact Phone: +7.4955801111 Registry Registrant ID: Registrant Name: Andrey Ivanov Registrant Organization: Yandex TDA Registrant Street: Armeyskaya 42 Registrant City: Moscow Registrant State/Province: MOSCOW STATE Registrant Postal Code: 121500 Registrant Country: RU Registrant Phone: +18004699269 Registrant Phone Ext: Registrant Fax: Registrant Fax Ext: Registrant Email: basoi1996@mail.ruRegistry Admin ID: Admin Name: Andrey Ivanov Admin Organization: Yandex TDA Admin Street: Armeyskaya 42 Admin City: Moscow Admin State/Province: MOSCOW STATE Admin Postal Code: 121500 Admin Country: RU Admin Phone: +18004699269 Admin Phone Ext: Admin Fax: Admin Fax Ext: Admin Email: basoi1996@mail.ruRegistry Tech ID: Tech Name: Andrey Ivanov Tech Organization: Yandex TDA Tech Street: Armeyskaya 42 Tech City: Moscow Tech State/Province: MOSCOW STATE Tech Postal Code: 121500 Tech Country: RU Tech Phone: +18004699269 Tech Phone Ext: Tech Fax: Tech Fax Ext: Tech Email: basoi1996@mail.ruName Server: ns1.reg.ru Name Server: ns2.reg.ru DNSSEC: Unsigned URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/>>> Last update of WHOIS database: 2016-01-26T01:36:44Z <<< For more information on Whois status codes, please visit https://www.icann.org/resources/pages/epp-status-codes-2014-06-16-en. % By submitting a query to REG.RU Whois Service % you agree to abide by the following terms of use: % http://www.reg.ru/whois/servpol (in Russian) % http://www.reg.com/whois/servpol (in English) Picture of the admin page: 
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There is no reason to have encryption or decryption of messages using Bitcoin. It may not be safe as the keys are short (although I think ECKeys are still rather strong even when short). It is not integral to Bitcoin and there really is no reason to have encrypted stuff like that in Bitcoin.
if it is for the encryption scriptsig in transaction or signed ownership privkey? Your english is a bit lacking and this is very hard to understand. Bitcoin already has signing features because signing is required in transactions. There is absolutely no need for encrypting, and the system wouldn't work with encryption anyways. |
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