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Guys stop spamming around same shit all over again.
On market there is 200+ coins and some behave like there will be only 2...
Who cares when price is jumping now...
BC =/= Mint and never will be...
There will be fans of Mint there will be fans of BC who really cares about here
Mint fans they have their own forum.
in reality real straight competitor here is NXT, soon will be ZET when it will have 1% inflation only from POW part
or C2, FairCoin and other POS systems
and i must admit that BC is doing great : ) in therms of volume.
On price we need work harder.
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https://bitcointalk.org/index.php?topic=551861.0Look at POS/POW coin weakness. And consider making it PURE POS or POW/POS hybrid like PPC with big POW part. In short POW/POS have weakness when POW reward is low. When you take over control of 51% hash power you can orphan all POS blocks. It can lead to 51% attack consequences like double spend and other attacks are enabled. In this case Mint devs decided turn of POW part because is not secure network unfortunately. Anyway in POS 0,3 protocol from PPC last fixes was applied and most bugs in POS was fixed. Anyway you can hire or give some bounty to BC Dev to setup secure POS system. It is up to you. Pure POS is new in crypto now only BC and now Mint is working on that. All coins hybrids POW/POS with low POW rewards have such weakens like exposed by rat4 in this post. Test attack was successful and Mint same day turned of POW to secure network. Consider pure POS to avoid future problems with security of low reward of POW part. you have 2 solutions: 1 POW minig and full POS part 2 POW minig and POS part + high reward POW part like PPC,HBN,BCX did.
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MINT is proven antifragile
can blackcoin say the same? time will tell
Sure it proved ^^ few times... -timebomb attack solved -After some bcmutipool Developer left there was many FUDs after that BC rebuilded it position and got new pool dev team... -After minig part no many gave BC chance to go up... -CR exchange problems and FUDs on BC dev + death wishes... there was many drama points of BC history bro...price ofcourse drooped but not for long  Zero difficulty PoW is open door and cannot be trusted. One of possible fixes is to disable PoW. So it looks like Mint joined true POS system ^^ and applied rat4 easy fix. |
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this is already happening a lot.
hackability and exploitability of any coin is bad.
thats why something new, radical, will be invented one day to replace this all.
bank goverments can steal your money with taxes fees and you can do anything about it with crypto you are free from banks and governments. Where moeny are there allways will be problems becouse of people greed and other factors. You wont run away from it unless you will be homeless ^^ |
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So, MINT is kinda weak right now and it's probably a good time to strike. Hypothetically, let's say a whale with a lot of MINT and BTC wanted to destroy MINT, what would he have to do? I don't think it is as simple as just dumping MINT into the ground, is it? If the whale were to buy up some BC, then dump on MINT, would that mean the MINT bagholders will drop their holdings and maybe move into BC, thereby pushing BC to the moon? I'm getting the feeling that BC is superior to MINT because we have a better community and better dev, rat4, who looks for problems to fix, whether it benefits BC or not.
"who looks for problems to fix, whether it benefits BC or not." I think he was expecting, or at least many within the BC community were hoping, that exposing this would have driven BC up. Why is BC being dumped right now? Something we don't know about? BC went up in price. 24 hour volume reached 7,405 satoshis. It has only dropped a little, by about 14%. MINT has dropped by about 25%. Is this security issue with hybrids gonna be a problem? If it is a problem, then I don't see why it can't be fixed. Just need people to work together and be patient. don't give them the benefit of the doubt. these guys aren't trying to work with you dude, they are liars. Let them prove otherwise with a successful attack You miss point bro if someone will atack with eg. double spent whole crypto will be damaged not only POW/POS... This is bad PR for all coins. Those guys who will do eg double spend with 100m mint will steal real people money. Will you be happy with that ? Sometimes you don't know about consequences of such event... Do you want give press bullets to shoot in crypto and scary people ? That is why in all people interest is to solve problems and stop whining each-other. If coin will be fast fixed noone will remember about bug in 2 months... this is whole puenta just don't be such closed mind. |
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http://agran.net/bc_getbalance.php?top=55002 weekes ago people with accout balances >100BC was about 4000 Now we have 5000 we are expanding ^^. Last adress with >1 BC is now on 7000. We are expanding also is noticable that big bag holders are increasing possession that mean they are supporting coin all the time ^^ Good news for BC.
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I've been reading about the issues with Mint, will that affect BC?
If you had a lot of BTC right now, what would you put it into?
Would you put a small amount into Mint or none, but all in BC?
One more remember to buy on depths to not regret. Pacietience is key in BC. Currently 4000-6000 is lowers possible price but before Friday it will be crazy jump i think then some correction. |
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Look at all those even buy numbers on the exchange I sure wouldn't trust that price
I see that you just like jump here to troll BC in every occasion... especially when price fall  ... this is kind funny. I don't even need to tell anyone from which community you are coming from : D this is easy to guess... ________________________________________________ Guys what is multipool buy strategy on Black Friday ? Full pump or we save to buy on low during whole weekend ? Or 50%/50%... I don't know what could be more effective ? |
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What is the nature of the attack and what are the risks to people currently holding Mint?
Was a 51 attack over POW part, cant go further since POS kick back in If you are paranoid use more than 120 confirmations, this will exclude this attack since POS will always kick back in less than an hour No double spend can be made with this attack. then https://en.bitcoin.it/wiki/Double-spendingand finaly: >50% attack If the attacker controls more than half of the network hashrate, the previous attack has a probability of 100% to succeed. Since the attacker can generate blocks faster than the rest of the network, he can simply persevere with his private fork until it becomes longer than the branch built by the honest network, from whatever disadvantage. No amount of confirmations can prevent this attack; however, waiting for confirmations does increase the aggregate resource cost of performing the attack, which could make it unprofitable or delay it long enough for the circumstances to change or slower-acting synchronization methods to kick in. _______________________________________________________________________________ ____________ Mint attack 51% of POW part was successful no POS block was generated during test attack. Just becouse test attack wasn't created to enebled double spend that doesn't meant it is impossible. Do you realy want attack to create panic ? "Successfully tested on Mintcoin: no PoS blocks from 203231 up to 203441, more than 1 hour of real time." just check blocks in explorer to see it was for real... Mint just need fast fix that is all |
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Umm you were here 9 months ago saying PPCoin is doomed, it's flawed etc. Made lots of noise about it. Nothing happened.  Nothing needs to happen as long as PoW is chugging along -- but then it's just another PoW coin. The PoS system it is eventually supposed to become as reward goes to 0 is deeply flawed. I would anticipate BlackCoin to demonstrate this, and eventually leave rat4 scrambling to apply patch after patch as the system breaks in new and exciting ways. Told OP it was a bad idea, was ignored by OP in the Blackcoin thread. If you don't understand the code you're modifying, don't muck with it.
These attacks are not applicable to BlackCoin. Guess why. rat4 wrote you that for those atacks BC POS is not valuable how many times he need wrote the same ? |
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Perhaps now is the time for additional security testing of blackcoin?
We welcome you to, really. We are talking about systems that keeps track of people's money. People invest in coins with their hard earned money or do it via mining with their expensive equipment. If the coin's system is at risk this is a risk for everyone involved. If you are successfull, have the same decency as us and report it to the devs. We did for MintCoin and you do not want to read their response. That is the sole reason it has been posted here. We too have money invested in other crypto's and would like them to be as secure as possible, that's why we checkout other coins security and report security risks immediatly.You mean same decency and also helpfully inform all mintholders to go to BC thread and spread FUD? No, I won't be doing that. Sry mgburks77 but Soepkip just answered because some people accuse BC developers Soepkip is one of them... He is not just random hater, flamer or FUDer...I just believe him he proved his trustworthy and transparency so far. |
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>Coin life.
>What please explain???
I do not know what to understand by "Coin life". The time when it's alive or what?
Who can explain, if all coins are distributes in such small time (just 10-20 days) what is the reason of it's grow?
For example Litecoin and Bitcoin afaik as very-very far from end of finishing of it's mining, but mint and bc are already minned. Why it's grow?
So NXT,MSC,Ripple 100% premined coins collapse and die in your theory but they are living and they will... Preminig,IPO,Minig this is just only initial distribution people looking at community and they joining. you know 1st BTC pizza was for 10000 BTC... it took time to divide that coins into new people. People will sell on high and new people will buy on depth that is how those coins works even BTC,Mint or BC and NXT works same way. Mint promotion point is green minig. Bc promotion point is store wealth in it. If someone need something like that then he will buy coins he needed. Even 100% premine coins are growing look at NXT...this is happening. POS needed community to expand that is all. |
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Who can explain me what really benefits have MintCoin on Blackoin. It's look like they are very similar, and difference between them only in number of coins and time of generation PoS blocks.
For me it's not so big differences.
Also I have few question:
1. Where I could look at when all coins will be generated with the current hash power of network?
2. Am I right understand that all blackcoins are already minned and now only time of PoS coin generation?
1. Where I could look at when all coins will be generated with the current hash power of network? Block explorer is the tool you needed.Try spot block difficulty. BC had hash rate like 3GHS in 1st day...7 2nd..up up...50GHs 5day then down to 20-10 Ghs to the end... 2. Am I right understand that all blackcoins are already minned and now only time of PoS coin generation? Yes new coins only from POS 1% annual. Some inflation is needed to keep POS alive and pay people for runing PC in that year. But innovation like bcmooltipool is mining other coins to buy you BC from market at lowest price. Today BC need about 0.3BTC to buy all new coins and same time Mint 4BTC to buy all even BC price is higher. BC 74m coins vs 70bln Mint. |
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EBT started first
The best is EBT !
First Pow&Pos
Not PPC ? try check date of PPC and EBT ^^. PPC is father for all POS/POW hibryds correct me if i am wrong. |
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Price difference?
One is pure POS and one is hybrid POS/POW
Mintcoin started first?
Mintcoin has a much more active community
Mintcoin still has a large unspent premine to use for significant improvements.
Stake difference: 1% vs 30% decreasing
Coin life.
Mintcoin has a 4 x longer distribution time.
Mintcoin started first?What started 1st ?... You know there are coins like PPC,Nova,HBN,BCX... POW/POS mint have just different parameters from them. Mintcoin has a much more active community.Relay i don't think so but all have their personal opinion... I see many events around both coins. Mintcoin still has a large unspent premine to use for significant improvements.Hmm show that dev premined 700m wallet ^^ and how much is in it it should be simple. Stake difference: 1% vs 20% decreasingJust mean mint more produce new coins while BC is almost deflationary coin. Coin life. What please explain??? Mintcoin has a 4 x longer distribution time.Sure but when you keep look closer then you can count that: BC 100% distributed in 10day Mint 63% distributed in 10day 37% in rest 25 ^^. Main difference is economy BC is for holding in long run and is considering like store of value while Mint is for minitig new coins that is its green concept... 0% premine vs 4.5%(effective 1%pre + POS 3.5%) ... 0% means all in hands of community while premine you mu trust and count on Dev mostly But most successful coins are not premined note that Doge,LTC,Vtc... For me if you are looking for store of value go BC if you are looking for green mining by Pos try Mint or ( HBN,Nova,BCX) |
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I just realized that we have awesome Dev: https://bitcointalk.org/index.php?topic=551861.0He pointed 51%POW attack of POW/POS... in simply that means those coins are open for eg. double spend. Funny is that one huy wrote to attack one,cold all FUDs ext... and he did test attack he mined some coins for 1h and showed that is valuable to 51% attack ( that should be impossible ^^)... he pointed weakness in one day after they started flame him. Damm rat4 is real good dev IMO. I can't sometimes understand him be he knows better than me what he is saying. Guys remember donate him ^^ and keep his motivation to improve BC. |
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This is a joke. Nice try to spread FUD about other coins, rat4, to try and promote your pure PoS blackcoin. How is it that Blackcoin prevents attack forks as a pure PoS coin, again?
You say "a sequential chain of PoW blocks can be mined in a flash."
Which is not true. Sure, you could mine all of the PoW blocks that occur sequentially, but there will be many, many more PoS blocks that interrupt those far and few apart PoW blocks.
....
I think you should apologize now rat4, thank him and pay him BIG bounty for helping Mintcoin and others for founding bugs... And even bigger bounty for solving issue... PS:He just mined 1h in POW Mintcoin you want more evidence... ? Do you want double spend ? |
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No, I am talking about the chance of being the user who gets the next stake-block.
In some of your copies of the blockchain+wallet some other user will get the next stake block, if you only stake for example 1/10th of your coin age on a block (because of wanting to get 10 blocks in a row, for example).
On all the copies where it is not you who gets the next block, well those copies never happened. Your "real" attack chain you pick to build next block on will be one of the copies in which it was you who got the next block.
So for example suppose you have ten times enough coin age to get a 1 in 1000 chance of winning the stake block.
You can thus afford to try for ten blocks in a row, with 1 in 1000 chance each block.
Now make 1000 copies of the chain, so a thousand of "you" are, in secret, trying for the next block with 1/1000 chance each.
What is your chance then?
Now suppose you make 10,000 clones of "you" all in parallel.
Etc.
The fact it does not cost "work", just a bunch of disk space and a little bit of computation, per copy you run in parallel, is why Cunicula wanted "work" to be somehow involved in using your "stake". Not separate blocks even, just make it cost to use stake. In at least one of his suggestions for example, the weight would be some function of work and stake, chosen so it would take a lot of work to beat a little stake but pure stake with no work could be beaten by less stake with some work.
-MarkM-
You always have factor of others wanted broke your operation. 1/1000 x1000 = 100% chance wont never exist in real world because there always will be others with some coin age or exchange ext and those factors will cut your chance to 50% maybe less per block but always to have 100% chance you need shut them down others from network. It is no so easy even with such "bot" net like that you need to be majority. https://en.bitcoin.it/wiki/Proof_of_Stake"Double-spending prevention A good level of security can be achieved by waiting for a block to be cemented. By that time it is safe to assume that the network recognizes this block and will not easily switch to a different block, even if a longer branch is presented. A more authoritative confirmation is enabled by waiting for a signature block. Once a block achieves a majority (and some more time is allowed for this majority to spread in the network), it is extremely unlikely that the network will ever switch away from this block." ______________________________________________________________________ So when you trying get coin age up while being off line and not stacking: Coin-age_t = Coin-age_t-1 + 1 You are losing weight weight - is something that can allow you have higher chance to mine POS block. New weight = 0.9 * Old weight + 0.1 * Balance If a signature is not provided by the address in a signature block, its weight decreases: New weight = 0.9 * Old weight Coins with stake with big coin age aren’t majority of coins which will be used to confirming operation they can refuse fake blockchain you still need majority of coins to confirm double spend. |
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Okay so spawn/clone a million copies of the blockchain, or some number of copies anyway. Trillions, billions, hundreds, tens, whatever your stake farming centre can do.
Pick to build on only the copy in which whatever chance of getting the next stake block happened to fluke out for you to get you the block.
Make as many copies of that resulting blockchain.
Etc.
By what proportion of the number of copies does that increase your chances aka multiply your "effective" stake?
-MarkM-
Stake/weight/coinage is connected with adres and written in blockchain. Once you hit stake you are destroying coinage/stake and and power for all copies at once. You will use all copy only once. |
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To perform a DOS attack on a blockchain-based cryptocurrency, you don't need to generate all of the blocks---you only need to be able to generate more blocks than all of your competitors combined in order to create the longest blockchain. Clients accept the longest blockchain as the valid blockchain.
Since a 51% stakeholder has a faster search speed, he will (on average) be able to generate blocks faster than all minority stakeholders combined. That means his blockchain will always eventually grow longer than any other blockchain, allowing him to unconfirm any transaction included in the blockchain by the minority stakeholders.
This is not an unknown problem. The Peercoin website says, "In a hybrid proof-of-work/proof-of-stake system, an attacker would have to possess 51% of mining power and 51% of all coins."
In a pure POS system, only a 51% stake would be required to perform an guaranteed-to-succeed attack.
"In a pure POS system, only a 51% stake would be required to perform an guaranteed-to-succeed attack." I know only BC but there you need 10 confirmations and still you have only chance that you will get POS mined blocks. if you have 51% of all coins chance that you get 10x POS block in row are even smaller. Chance is (0.51)^10 ~0.1% chance of succeed... but even with that you have weights and other parameters which are making attacker life harder to get 10 confirmations in row. |
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