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Topic: [ANN] ★★ EBT Coin - Entropybit 100% PoS - Multipool - Bugfix version 4.0.3! ★★ - page 25. (Read 131676 times)

EBT
sr. member
Activity: 252
Merit: 250
Another question: Why are people doing these attacks?

That's a good question. The most likely explanation for specifically targeting servers (mining pools) is to remove a lot of competition all at once. It doesn't take many hashes to have a successful attack because the attack is concentrated. The idea is probably to remove the servers and then be the only one hashing when the solo block is found. At that point the attacker can mine hundreds of blocks before the pools recover.
legendary
Activity: 1876
Merit: 1014
PoS Switchover is Now Set to Block 310,000

The EBT development team has decided, based on yesterday's DDOS attack, to move the PoS switchover up to block 310,000. The principal reason for moving the switchover from 400,000 is that it will require another five or six weeks to mine blocks 300,000 to 400,000. This time will allow perhaps a dozen successful DDOS attacks on EBT servers, targeting the PoW functionality we seek to end. We therefore want to reduce this time by moving the switchover up to 310,000.

A full rationale for the early switchover is given below.



Downloads

Source: https://github.com/argakiig/EBT

Windows Binaries:
Auto Install: https://drive.google.com/file/d/0BwGL9FkcBurEcDRCeXloZHg0MEU/edit?usp=sharing
Virus Total http://tinyurl.com/kxdau8h (0/52)

Manual Install: https://drive.google.com/file/d/0BwGL9FkcBurEX0ZTZ0xBbnlLQ28/edit?usp=sharing
Virus Total http://tinyurl.com/mevwy5p (0/51)


OSX Wallet:
Disk Image: https://drive.google.com/file/d/0B8rWObF4xz1Ybk40bTZncV8zWTg/edit?usp=sharing
Virus Total http://tinyurl.com/ml33tz2 (0/52)




Premine Considerations

Using the same analysis given earlier, we estimate that the value of the remaining premine will increase by about $4 from this decision. A quick way to arrive at this estimate is to note that each halving period is equal in PoW reward to all of the periods that follow, doubling the previously estimated increase.


DDOS Attacks

We believe that the EBT network has sustained numerous, if not continual attack since the morning of April 25. We surmise, based on analysis of the block chain, that these attacks are directed at servers and are executed by flooding the servers with bad blocks. In our model, the attackers hope that a server will accept one or several bad blocks and subsequently get banned when trying to serve these blocks to the server's peers.

Figure 1 shows our model for the effects of these DDOS attacks. In this figure, the thick blue line represents PoW difficulty. Superposed on this line are blue pluses and red exes that represent PoW and PoS blocks, respectively. The results of a successful attack first manifest as a long series of uninterrupted PoS blocks (horizontal red bars) that terminate with PoW blocks, probably found by solo miners. Once this block is found, the PoW difficulty retargets at a very low value causing PoW blocks to be found very rapidly. A closeup of the Figure 1 area labeled "PoW Suspended (Server Ban)" is shown in Figure 2.

We believe that PoW blocks stop during a successful DDOS event because the mining pools get banned from the rest of the network, and are unable to submit PoW blocks from miners. The mining pools then get on their own orphan chains. After the first PoW block is found in a DDOS event, the subsequent exceedingly fast blocks cause highly connected nodes, like mining pools, to crash from I/O errors.

Fortunately, the correct block chain for EBT is maintained safely by the majority of PoS minters, who are immune from concentrated attacks. Thus, even though pools and other highly connected nodes may abandon the correct chain, the servers eventually be synchronized after the DDOS event has ended.


Figure 1: Anatomy of a DDOS Attack




Figure 2: Closeup of the Start of a DDOS Event



Understandable. What will this mean for the total amount of coins? (still says 250 million in opening post)

Another question: Why are people doing these attacks?
EBT
sr. member
Activity: 252
Merit: 250
PoS Switchover is Now Set to Block 310,000

The EBT development team has decided, based on yesterday's DDOS attack, to move the PoS switchover up to block 310,000. The principal reason for moving the switchover from 400,000 is that it will require another five or six weeks to mine blocks 300,000 to 400,000. This time will allow perhaps a dozen successful DDOS attacks on EBT servers, targeting the PoW functionality we seek to end. We therefore want to reduce this time by moving the switchover up to 310,000.

A full rationale for the early switchover is given below.



Downloads

Source: https://github.com/argakiig/EBT

Windows Binaries:
Auto Install: https://drive.google.com/file/d/0BwGL9FkcBurEcDRCeXloZHg0MEU/edit?usp=sharing
Virus Total http://tinyurl.com/kxdau8h (0/52)

Manual Install: https://drive.google.com/file/d/0BwGL9FkcBurEX0ZTZ0xBbnlLQ28/edit?usp=sharing
Virus Total http://tinyurl.com/mevwy5p (0/51)


OSX Wallet:
Disk Image: https://drive.google.com/file/d/0B8rWObF4xz1Ybk40bTZncV8zWTg/edit?usp=sharing
Virus Total http://tinyurl.com/ml33tz2 (0/52)




Premine Considerations

Using the same analysis given earlier, we estimate that the value of the remaining premine will increase by about $4 from this decision. A quick way to arrive at this estimate is to note that each halving period is equal in PoW reward to all of the periods that follow, doubling the previously estimated increase.


DDOS Attacks

We believe that the EBT network has sustained numerous, if not continual attack since the morning of April 25. We surmise, based on analysis of the block chain, that these attacks are directed at servers and are executed by flooding the servers with bad blocks. In our model, the attackers hope that a server will accept one or several bad blocks and subsequently get banned when trying to broadcast these blocks to the server's peers.

Figure 1 shows our model for the effects of these DDOS attacks, using actual data from the EBT block chain. In this figure, the blue line represents PoW difficulty. Superposed on this line are blue pluses and red exes that represent PoW and PoS blocks, respectively. The results of a successful attack first manifest as a long series of uninterrupted PoS blocks (red exes that appear as horizontal red bars) that terminate with PoW blocks, probably found by solo miners. Once this block is found, the PoW difficulty retargets at a very low value causing PoW blocks to be found very rapidly. A closeup of the Figure 1 area labeled "PoW Suspended (Server Ban)" is shown in Figure 2.

We believe that PoW blocks stop during a successful DDOS event because the mining pools get banned from the rest of the network, and are unable to submit PoW blocks from miners. The mining pools then get on their own orphan chains. After the first PoW block is found in a DDOS event, the subsequent exceedingly fast blocks cause highly connected nodes, like mining pools, to crash from I/O errors.

Fortunately, the correct block chain for EBT is maintained safely by the majority of PoS minters, who are immune from concentrated attacks. Thus, even though pools and other highly connected nodes may abandon the correct chain, the servers eventually can be synchronized after the DDOS event has ended.


Figure 1: Anatomy of a DDOS Attack




Figure 2: Closeup of the Start of a DDOS Event

legendary
Activity: 1876
Merit: 1014
As of blade, the crypto has not taken off, and will never take off (there'll be no inverters seeing it's 100% interest rate or 100% inflation a year) and PPC will die someday.

You just spammed this thread with text from your blog, which doesn't contain any data to support your claims.


I have some blade and it's a slow starter, but pretty solid, indeed.
hero member
Activity: 742
Merit: 500
As of blade, the crypto has not taken off, and will never take off (there'll be no inverters seeing it's 100% interest rate or 100% inflation a year) and PPC will die someday.

You just spammed this thread with text from your blog, which doesn't contain any data to support your claims.
hero member
Activity: 686
Merit: 500
I rated this better than quark, but now it ranks a lot lower.

If you are actually serious about rating good coins (and not just a troll), then look at Blade:

1. Tiny premine that is already spent (originally 20190 out of a current 16988980: 0.12% premine)
2. Very green (pure PoS), but made it to the full PoW block count, and a little beyond
3. Excellent performance and network stability since the last update
4. Very cheap now
5. Listed on cryptorush (when it comes back) and xnigma
6. Has a dev team who have worked out every bug that has come along and kept the chain clean

It's probably the perfect coin right now.


Quote from: delogics.blogspot.com/2013/12/the-ultimatebest-cyrptocurrency.html
Proof of stake is not good.
        It encourages holding the coins as investment, avoiding it's circulation, i.e. true use as a cryptocurrency. Then worst -- PoS looks at the coin age; the longer you're holding a large amount of cryptocurrency, the higher the chance of mining a block, which further reduces chance of circulation. However if the profits proof of stake is giving you is negligible, then we may nullify this disadvantage.

This disadvantage is nullified, cause interest rate is not high.

Quote
You need to run a full node in order for the wallet to mine blocks based on PoS and it should be up always; how many people will do that? (especially when the interest rate is low)? When these coins will be made popular, 90% people will run light weight wallets giving power to the hands of these 10% (PoS difficulty will be low in this case). Yes it is true, like with PoW the distribution of mining power will shift towards more professional miners who'll hold large amount of coins, but if the interest rate is low, they rather sell their coins to invest in real world schemes which provide more profits than this crypto, as an advantage they'll have lower risk cause the crypto market is very volatile.
         
         
         In case of PoW, power will may be in the hands of 5% (lower no. of people than PoW) but they'll have a lot of hashing power which if compared to the amount of coins held by these 10% is a much higher value increasing the difficulty in comparison to PoS, which results in higher comparative difficulty for PoW.  As compared to PoW, acquiring enough coins to do a 51% is easier (at these low difficulty and especially when interest rate is low.)

Why PoW is better --

Quote
An advantage as compared to PoS for the same inflation rate is that, cause less no. of people will be mining via PoW as compared to PoS (cause PoW requires investment in electricity cost, and hardware), the distribution of the inflation rate will be limited to less no. of people making the amount profit via the limited inflation rate more significant. This can be seen practically. For popular alts, the hashing power is more distributed cause the difficulty is low and profitability is high. Overtime, more people come up to mine the coins many of which are large professional miners and as the difficulty rises profitability falls reducing the no. of small time miners (cause profit is not significant anymore -- low profit margin), but the large professional miners persist (low profit margin, but higher hashing rate means more $$$s for a small % margin), increasing profitability for them. Of course the no. of miners also depends on the popularity of the crypto; but given the same popularity, we see this trend.

As of blade, the crypto has not taken off, and will never take off (there'll be no inverters seeing it's 100% interest rate or 100% inflation a year) and PPC will die someday.
hero member
Activity: 742
Merit: 500
I rated this better than quark, but now it ranks a lot lower.

If you are actually serious about rating good coins (and not just a troll), then look at Blade:

1. Tiny premine that is already spent (originally 20190 out of a current 16988980: 0.12% premine)
2. Very green (pure PoS), but made it to the full PoW block count, and a little beyond
3. Excellent performance and network stability since the last update
4. Very cheap now
5. Listed on cryptorush (when it comes back) and xnigma
6. Has a dev team who have worked out every bug that has come along and kept the chain clean

It's probably the perfect coin right now.
EBT
sr. member
Activity: 252
Merit: 250
You could've changed the difficulty algo.

We considered this option and would have preferred it. However, we felt that changing the retarget algorithm was too experimental and not guaranteed to have the desired effect.


Bad luck. I rated this better than quark, but now it ranks a lot lower.


I want original block reward back!!!!

not a good mining investment any longer

The Decision to End PoW Early Will Not Significantly Change the Value of the Premine

We understand that not all decisions can be popular with everyone. However, if your reservations stem from the potential of a reduced money supply and its relation to the premine, then your reservations are essentially unfounded. In fact, the decision to end PoW at block 400,000 enriches the remaining premine by only about $2, as explained below.


Money Supply

At block 400,000, EBT will be 94% mined. Even if we were to stop PoW now, the reduced number of coins would come almost entirely from PoS blocks that compete with PoW blocks. For example, were all blocks thus far created by PoW, the total money supply would be 178 MM. But because of the PoS blocks already minted, the total money supply is currently 154 MM EBT. PoS, therefore, is already responsible for a 9.6% reduction in coins, given a theoretical PoW limit of 250 MM EBT.

An end of PoW at block 400,000 will not significantly effect the money supply by the time of the original PoW end at block 1,100,000. So far, the mean block reward for PoS blocks has been about 10 EBT since the first PoS mint at about block 78700 (Figure 1, below). Since that time, about an average of about 25% of all blocks have been PoS (Figure 2), which is expected to increase over time. For all blocks greater than 400,000, the average PoW reward will be 17.8 EBT. If, as a conservative estimate, 35% of these blocks are PoS, then the average block reward for blocks 400,000 through 1,100,000 would be about 15 EBT (17.9*0.65 + 10*0.35). If all blocks are PoS, the estimated mean block reward would be 10.

Since blocks between 400,000 through 1,100,000 are only about 6% of the absolute maximum PoW money supply of 250 MM, the reduction in money supply coming from a switch to pure PoS at block 400,000 would be only about 2% (((15-10)/15)*6%).


Premine

In other words, ending PoW at block 400,000 would be equivalent to a 1.02% premine (1/98), or an increase in the premine of 50,000 EBT.

Currently, though, the premine is 90% spent on bounties. In other words, only about 259,000 EBT of the premine remains, meaning that the relative size of the remaining premine has grown by a factor equating to approximately 5180 EBT. At current prices, this amount of EBT is worth about $2.


Figure 1: EBT PoS Block Mean Reward




Figure 2: Fraction of EBT Blocks that Are PoS


full member
Activity: 158
Merit: 100

I want original block reward back!!!!

not a good mining investment any longer
hah you can always invest some btc(i'm already put on this about 4btc)
and where have you been before? maybe you was mining another "good mining investment" coin?
sr. member
Activity: 266
Merit: 250
what for me... i see no sense in changing diff algo for six days of mining
or you would prefer to mine it in pow for about a year?

I want original block reward back!!!!

not a good mining investment any longer
full member
Activity: 158
Merit: 100
what for me... i see no sense in changing diff algo for six days of mining
or you would prefer to mine it in pow for about a year?
hero member
Activity: 686
Merit: 500
You could've changed the difficulty algo.

We considered this option and would have preferred it. However, we felt that changing the retarget algorithm was too experimental and not guaranteed to have the desired effect.


Bad luck. I rated this better than quark, but now it ranks a lot lower.

sr. member
Activity: 266
Merit: 250
http://www.argakiig.us/blockchain/ebt/index.php

I checked a transfer here and it's got 165 confirmations - how many confirms are needed before it shows up in my account at poloniex?

I transferred coins from my wallet and they're still not in my account at poloniex.

You should contact poloniex about the transfer.


it eventually showed up after 200 confirmations and about 70 minutes
EBT
sr. member
Activity: 252
Merit: 250
You could've changed the difficulty algo.

We considered this option and would have preferred it. However, we felt that changing the retarget algorithm was too experimental and not guaranteed to have the desired effect.
hero member
Activity: 686
Merit: 500
UPDATE

Wallets are now available!

Source: https://github.com/argakiig/EBT

Windows Binaries:
Auto Install: https://drive.google.com/file/d/0BwGL9FkcBurEUHZqbGZ2aXVHTGs/edit?usp=sharing
Virus Total http://tinyurl.com/lu8zoxt (0/52)

Manual Install: https://drive.google.com/file/d/0BwGL9FkcBurEUlRiSGVseGlPeGM/edit?usp=sharing
Virus Total http://tinyurl.com/nv6ncw3 (0/52)


OSX Wallet:
Disk Image: https://drive.google.com/file/d/0B8rWObF4xz1YOVVPaGpNTFktaTQ/edit?usp=sharing
Virus Total http://tinyurl.com/ol8t5ya (0/52)


ANNOUNCEMENT

As you may have noticed EBT has been under attack for the last few weeks. These attacks have been traced back to hashing spikes that are greatly disproportionate relative to the difficulty. In order to address these attacks the EBT Team has decided to end POW at the next halving. At block 400000 there will be 0 block rewards for POW blocks, effectively negating attacks. This will reduce the coin supply to an estimated: 157,648,686 total EBT down from the original 250,000,000 EBT originally slated for minting. Along with this change, the new QT will feature several improvements.

1. Coin Control
2. Cosmetic changes
3. Unlock button for POS minting located on the overview page

The EBT Team thanks all of you for your ongoing support. We look forward to the positive effect we believe these changes will have. As always we love to hear your feedback and appreciate your input. Keep your eyes on this thread as more big things are just around the corner. All we can say is that we have a new partner working on an exciting project.

You could've changed the difficulty algo.
sr. member
Activity: 350
Merit: 250
Nothing but orphans lately.

Seems like the same thing.  Whether solo mining or pool mining.  At both ebt.dsync.com and argakiig.us I have coins show up in the balance then disappear.

EBT
sr. member
Activity: 252
Merit: 250
http://www.argakiig.us/blockchain/ebt/index.php

I checked a transfer here and it's got 165 confirmations - how many confirms are needed before it shows up in my account at poloniex?

I transferred coins from my wallet and they're still not in my account at poloniex.

You should contact poloniex about the transfer.
sr. member
Activity: 266
Merit: 250
the transfer from my wallet took over an over into poloniex, but from the pool the transactions are just a few minutes

I've had very good experience here

http://ebt.argakiig.us/index.php?page=statistics&action=pool
newbie
Activity: 63
Merit: 0
sr. member
Activity: 350
Merit: 250
http://www.argakiig.us/blockchain/ebt/index.php
I checked a transfer here and it's got 165 confirmations - how many confirms are needed before it shows up in my account at poloniex?
I transferred coins from my wallet and they're still not in my account at poloniex.

Not sure about PoloniEX but I transferred some from EuropEX and it was pretty quick.

Status: 65 confirmations
Date: 5/7/2014 19:24
From: unknown
To: 5bub9Wgss3vC1G6bKFBEFkBK96MoxSSxTM
Credit: 2316.99998 EBT
Net amount: +2316.99998 EBT
Transaction ID: bd9b794ad9bb06cfb82ee1212a5924146c56596971b7dba66f99b2224298ceff

http://www.argakiig.us/blockchain/ebt/index.php

Anyone mining on ebt.dsync.com?  I've been pool mining there since last night and my EBT balance hasn't changed all day although cgminer shows a multitude of accepted shares.  This isn't the first time I've had hiccups with them.

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