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Author Topic: [14000Th] Eligius: 0% Fee BTC, 105% PPS NMC, No registration, CPPSRB  (Read 873608 times)
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scryer108
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January 08, 2017, 03:43:07 AM
 #5141

Grin im new to mining but excited to come in this moment my operation is small right now but i plan on expanding. is cloud mining even worth it? i only have an antminer u3 but was thinking of cloud mining for some extra $

Most cloud mining operations are Ponzi schemes. Please steer clear and do LOTS of research before sending your money to any operation that promises hash power for sale. A few mining rig rental operations are legit. Be careful.

thanks i will save up for a rig lol

Dash Tips: XuXgcXcycKHPeBKKXtc2Z8QmmqySe2abc7
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January 08, 2017, 03:58:19 AM
 #5142

Eligius-Ra to Eligius-Hu Transition

Greetings Eligius Miners,

As you may or may not be aware, Eligius is currently transitioning from Eligius-Ra (CPPSRB, wizstats, etc) to Eligius-Hu (SAPPLNS, new stats, new features, etc).  Effective as of block 446827 Eligius-Ra has been shutdown with Eligius-Hu has taking its place.  This transition, which has been announced for several months with an indefinite time frame, is finally taking place.  I have detailed some key points about this transition below.

End of Eligius-Ra

First, some details surrounding the end of Eligius-Ra.  (If you're new to Eligius, skip to "Eligius-Hu - The Next Iteration" below.) A final payout was made on 2017-01-06 to all Eligius miners with a balance of at least 1 TBC (0.00065536 BTC).  A total of 5,968 Eligius miners were paid across 18 transactions, all of which appear to be confirmed at the time of this writing.

A few outstanding issues remained with payouts for Eligius-Ra.  Those were the hold placed on payouts to known MtGox mining addresses (February 2014) and the disposition of payouts held with regard to a block withholding attack (June 2014).  Both of these issues have been discussed with legal counsel in depth.  Our counsel had diligently reviewed available case law that may have had relevance as well as contacted several authorities in the course of their research in determining a proper course of action for these two issues.  There was no perfect solution to these situations and they’ve been handled in manners that best cover any potential liability for Eligius.

MtGox

The disposition of the held payouts to miners using addresses associated with MtGox had been researched thoroughly.  Eligius’s counsel had reached out to the Trustee of MtGox seeking a method to authenticate and directly pay the owners of record for the MtGox account associated with the Eligius users.  Unfortunately this turned out to be unsuccessful.  The team handling the MtGox bankruptcy case was unwilling to assist Eligius or the users with this situation.  With no way to cryptographically verify ownership of the addresses cousel advised that the only course of action was to release the payouts to their original MtGox wallet addresses.  This in fact done in the final payout for Eligius-Ra.  In the interest of full disclosure, wizkid057 did personally know one miner who utilized an MtGox wallet for their Eligius mining.  In early 2014, prior to the advice of counsel, that payout of approximately 0.4 BTC was manually paid to that miner.  Per counsel, the payout to the original MtGox address for that miner must also still be made and was made in the final payout.  This error was personally covered by wizkid057.

Block Withholding Attack

A potential disposition of funds associated with the admitted June 2014 block withholding attack was also researched extensively by counsel.  The initial resolution was to distribute the funds to the shelved shares during the time period associated with miners who would have potentially been affected by the withholding attack.  This was investigated, and the CPPSRB share log for that time period was analyzed extensively.  It was concluded that the pool’s reward system had already earned enough as a result of short term luck to cover the vast majority of shelved shares that would have potentially been affected by the attack.  Further analysis showed that the majority of the addresses from that time period actually had no shelved shares that would have otherwise been paid had the attack not happened.  Any that did still have any shelved share deficit that could be linked to the attack were either no longer active on the pool or blockchain since that time and/or, if awarded a calculated potential deficit, would be under the 2 TBC low-balance donation cut off balance after such an award was made.  Only a very small number of miners did not fit into these categories as it appears that miner turnover was quite high since then.

General morals coincided with the advice of counsel in this case.  It would not be right to utilize a distribution method that disproportionately benefited the pool itself (in the form of hundreds of low-balance donations) and instead actual miners should be awarded.

The distribution of these funds went as follows, as approved by legal counsel:
Miners from the time period that were no longer active at Eligius nor had a balance but had a potential reward deficit of more than 2 TBC (0.00131072 BTC) had those shelved CPPSRB shares awarded.
Miners from the time period that were either still active at Eligius and/or had an outstanding balance such that awarding their shelved shares from the time period would bring their balance to 2 TBC (0.00131072 BTC) had those shelved CPPSRB shares awarded.
The above only helped less than 0.5% of miners in the final Eligius-Ra payout and left over 98% of the block withholding attack related funds unrewarded.
The remaining funds were awarded to shares starting at the top of the CPPSRB share log.  This had the effect of rewarding a large number of shelved shares of miners who have been active at Eligius over the past half-year or more.

The end result was that these funds were awarded to Eligius miners in a fashion where no miner had an unfair advantage, and, perhaps most importantly, 100% of the funds went to Eligius miners.

Eligius-Ra Final Payout Notes

After all of the above was handled, a final payout was computed.  Normally any payout less than 2 TBC (0.00131072 BTC) would be donated to Eligius after 60 days, however this policy was never actually implemented.  Instead, miners with a balance of less than 1 TBC (0.00065536 BTC) were culled from the final payout.  Those addresses were then removed from the share log and the sum of culled funds were awarded to the share log and another final payout was computed.  This repeated until there were no more payouts below 1 TBC.  Long story short, instead of low balances being donated to Eligius they were instead distributed to other miners who had been actively supporting the pool.

The final payout went to 5,698 addresses in the following transactions:
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As a result, all miners have been paid and Eligius holds no additional miner funds.  Eligius-Ra is shutdown.

Eligius-Hu - The Next Iteration

Eligius has had several different reward systems over its many years of operation.  In that time the mining landscape has changed significantly.  For example, when Eligius was founded the network difficulty was a mere fraction of a percentage of what is today and the number of miners has increased just as much.  Eligius has always been hard at work improving to provide the best pool with the lowest possible fee: none, 0%.

Eligius-Hu is the next generation of these improvements.

New Reward System

Eligius-Hu has moved away from CPPSRB and on to a partly new reward system which I’ve tenatively dubbed SAPPLNS.  This stands for Share Assignment, Pay Per Last N Shares.  Like other iterations before it, Eligius-Hu will also utilize a robust coinbase payout system, directly paying miners from the blocks found by the pool.  The pool pays 100% of the block reward, including transaction fees, to miners.  There are no still no mining fees at Eligius!

Now you’re probably familiar with the “PPLNS” portion of that.  Many pools today use this system.  However, as always Eligius stands out from the crowd.  Eligius-Hu’s underlying reward system is true PPLNS with N=diff*8.  There are no shifts.  A full share log is kept, and when a block is found shares are rewarded accordingly.  While this may seem difficult to keep such a large share log, keep in mind that this work was already mostly done when CPPSRB was created: its share log had no limit on size.  With PPLNS, as you probably know, shares can be awarded to miners multiple times during periods of high luck, potentially resulting in a short term payout higher than 100% PPS (conversely, shares may be discarded during periods of low luck).

Since the N chosen is large (to lower miner variance) the top of the Eligius-Ra CPPSRB share log (after the final payout) was used as a starting point to fill in the initial PPLNS log for Eligius-Hu.

Share Assignments

The “SA” portion of this system is where Eligius once again stands apart from the competition.  Under this reward system a miner is permitted to reassign any share that has been accepted and is in the share log.  What this means is that miners can sell shares they have submitted to Eligius to other people/miners/etc.

For example, in a hypothetical situation let’s say on average at your hash rate you tend to have 1000 shares in the share log that get rewarded per block, and on average this earns you 1 BTC.  Well, you decide to put your shares up for sale at 1.05x their expected value because you desire a lower variance and potentially higher overall reward for your mining.  Someone can then purchase a number of your shares from you.  You get paid your asking price, and the buyer is then awarded by those shares each time a block is found from then on just as if they had mined them instead of you.  This person then gets a generated payout from Eligius for their earnings just as if they were a regular miner.  Due to variance, that buyer may be rewarded more or less than they paid for the shares, on average tending towards 100% PPS.

A shortened summary is that miners can set a price that they want to earn for their shares and either they will be awarded by the pool normally for those shares (not reassigned) or they will be paid their asking price (reassigned).  It’s a win-win for everyone.  Miners can potentially earn more for their shares, and buyers can get generated coins from Eligius as if they were Eligius miners themselves.

Additionally, miners may choose to put their shares for sale for less than their expected value.  For example, you could sell your shares for 98% of expected value.  The result would basically be you accepting a small cut in payouts, on average, in exchange for less payout variance.  Buyers then can assume that variance and, on average, gain a 2% profit (in this example).  In my private discussions with others during development this was a very well received point of the system.

The owner of a share can let it stay in the share log and be awarded by blocks or they can choose to sell it again if they like.

Shares near the extreme end of the share log (soon to be discarded) will not be able to be sold.  Generally newer shares will have more value than older shares as they have the highest chance of being awarded by blocks as many times as possible.  The market will have some generic probability calculations available for sellers to use in pricing.

While shares are for sale but unsold/not reassigned the miner is awarded for the shares as per normal.

Share Market

To make the share assignment system possible, Eligius will be opening a share market where miners can sell their shares to either other miners or general buyers on either a per share basis or automated based on a portion of their shares submitted and a set calculated price.

What will set Eligius above the competition is the fact that all transactions on the share market will be public and will be cryptographically verifiable.  When a miner puts a set of shares up on the market they must sign a message that is associated with their actual mining devices in order to place that sell order.  Then, when a buyer purchases the shares, depending on the seller’s preferences the buyer can potentially pay the seller directly with no financial involvement from Eligius.  Eligius’s market will then track the payout and reassign the shares once the payout is observed on the network.

Zero confirmation payouts to third parties?  That’s crazy right?  Well, no not really.  Keep in mind Eligius is a mining pool and can choose which transactions to include in its blocks, and also that shares are not awarded until the pool finds a block.  So, when a buyer submits a payment to a seller directly Eligius will ensure that this payment is included in its next block (provided it meets all the criteria specified and no anomalies occur before confirmation).  Assuming it is, or the payment received confirmation before this, the shares will be reassigned for that block and the buyer appropriately awarded.  If for whatever reason the payout is not confirmed when Eligius finds a block (either through a double-spend attempt or other issue with the payout) the shares are simply retained by the seller.  This was actually pretty non-trivial to do, and is still undergoing final testing (see deployment section below).  However, in all cases shares are never reassigned unless a seller is paid in a transaction that is confirmed by a block in the chain Eligius is mining on.

Shares that are reassigned are tagged as such in the share log.  When a share that has been sold/reassigned is awards by a block Eligius finds, Eligius will collect a 1% fee on the reward amount.  This is not cumulative per sale and is only collected if and when a share is awarded by a block.  Shares that are mined normally by miners still incur no fee.  The market will make this clear so that buyers and sellers are aware of this provision so they can calculate accordingly.

Disclaimer: The Eligius share market is NOT a bitcoin exchange or any other type of system in which Eligius is a financial service.  The Eligius share market simply facilitates the interactions of buyers and sellers.  Funds related to these interactions do not pass through Eligius’s wallets and are instead handled directly between seller and buyer.  Eligius is not responsible for any losses or any other damages incurred related to the use of the Eligius share market.

Share Market Security and Accounts

The share market brings about something new to Eligius: accounts.  Accounts are still in no way required for mining at Eligius, but are required for participating in the share market.

In order to facilitate the share market and assigned shares, Eligius miners wishing to participate in sales on the share market must create an account for the market.  Accounts and transactions on the market are authenticated using PGP (GPG) signatures.  You must submit a public key to the market website in order to create an account.  At that time you can set a payout address for your account and change your miners’ usernames to a new value provided by the market site (essentially your key fingerprint).  This proves ownership of the hash power and shares being submitted and put up for sale in as cryptographically verifiable a manner as possible.

When shares are put up for sale, the account owner must sign a message with their key and submit the signed message to the market.

All transactions on the market are public and anyone can utilize the market APIs to verify any transaction or sale order.  The PGP/GPG keys used for the market are also public, so plan accordingly.  You may want to use a key specific for the Eligius share market if privacy is a concern.

(Do not change miner usernames at this time, see below)

Deployment Timeline

As of now Eligius-Hu is active and has taken over share processing at Eligius.  Blocks found from this point will be rewarded under SAPPLNS.

Currently the payout system is in standby mode.  Blocks will currently be paid to Eligius’s cold wallet, and then manually distributed to miners once the block confirms.  The calculated coinbase rewards will be verified for the next few blocks to ensure that everything is operating as designed on mainnet before enabling automated coinbase payouts.  This policy will remain for at least the next three blocks.

A new stats page and Eligius home Page are being finalized.  These are expected to be online before end of the week in their initial form.  Tweaks and improvements will be made constantly from that point on to ensure smooth operation.  Until then, please disregard the existing stats and home pages.  Existing Eligius stats will be archived after launch of the updated pages.

The share market will be the last piece to come online and will do so in a fully opt-in manner. Once launched, the share market should be considered to be in beta until otherwise noted.  There will be a place to report any issues.  The target date for the share market launch is within 48 hours of the launch of the updated stats and home pages.

Eligius is currently running a segwit compatible bitcoind, however the pool side updates have not caught up yet.  Eligius will have full segwit support in the same time frame as the above.

---------

That should cover everything.  I’m sure there will be tons of comments and questions, so feel free to ask, contact me directly, or submit a ticket.  The best way to contact Eligius is generally via our IRC channel, #eligius on Freenode.

I will also be making a new thread here on bitcointalk once some of Eligius-Hu's front end is publicly operational. I will also be posting this writeup on Eligius's website.  Please excuse any typos in the above.  Been a long day!

As a note, mining is still being counted and shares are being processed by the new reward system, so keep on mining! Smiley

-wk

TL;DR Version:  Eligius-Ra (CPPSRB) has been discontinued and a final payout made.  Eligius-Hu is online (new reward system based on pure PPLNS wo/shifts) and all mining is towards this system now.  New web-based features (stats, share market) launching over the next week.

Tips: 1LDQrLr6dPVqNJmpZm82eZVKqDFRk7ERW8
Operator of the Eligius Mining Pool - 0% Fee, SAPPLNS, GBT, Stratum, IRC+Phone Support, Share Market (coming soon), Generation payouts, and more.
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January 08, 2017, 04:16:08 AM
 #5143

There's 20.63208776 BTC left at https://www.blocktrail.com/BTC/address/18d3HV2bm94UyY4a9DrPfoZ17sXuiDQq2B
and a tiny 0.00868075 BTC left at https://www.blocktrail.com/BTC/address/1ChANGeATMH8dFnj39wGTjfjudUtLspzXr

You probably should mention to everyone what they are for Smiley
I guess your mining since I think you mentioned you mined a lot?
(and I've no idea if there are other non-zero addresses belonged to the 'old' pool - no doubt you will)

Pool: https://kano.is Here on Bitcointalk: Forum BTC: 1KanoPb8cKYqNrswjaA8cRDk4FAS9eDMLU
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January 08, 2017, 04:20:32 AM
 #5144

There's 20.63208776 BTC left at https://www.blocktrail.com/BTC/address/18d3HV2bm94UyY4a9DrPfoZ17sXuiDQq2B
and a tiny 0.00868075 BTC left at https://www.blocktrail.com/BTC/address/1ChANGeATMH8dFnj39wGTjfjudUtLspzXr

You probably should mention to everyone what they are for Smiley
I guess your mining since I think you mentioned you mined a lot?
(and I've no idea if there are other non-zero addresses belonged to the 'old' pool - no doubt you will)

Those addresses are part of shared wallets that are not entirely Eligius funds.  All Eligius funds have been distributed.

Tips: 1LDQrLr6dPVqNJmpZm82eZVKqDFRk7ERW8
Operator of the Eligius Mining Pool - 0% Fee, SAPPLNS, GBT, Stratum, IRC+Phone Support, Share Market (coming soon), Generation payouts, and more.
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January 08, 2017, 04:48:58 AM
 #5145

Eligius-Ra to Eligius-Hu Transition

Greetings Eligius Miners,

As you may or may not be aware, Eligius is currently transitioning from Eligius-Ra (CPPSRB, wizstats, etc) to Eligius-Hu (SAPPLNS, new stats, new features, etc).  Effective as of block 446827 Eligius-Ra has been shutdown with Eligius-Hu has taking its place.  This transition, which has been announced for several months with an indefinite time frame, is finally taking place.  I have detailed some key points about this transition below.

End of Eligius-Ra

First, some details surrounding the end of Eligius-Ra.  (If you're new to Eligius, skip to "Eligius-Hu - The Next Iteration" below.) A final payout was made on 2017-01-06 to all Eligius miners with a balance of at least 1 TBC (0.00065536 BTC).  A total of 5,968 Eligius miners were paid across 18 transactions, all of which appear to be confirmed at the time of this writing.

A few outstanding issues remained with payouts for Eligius-Ra.  Those were the hold placed on payouts to known MtGox mining addresses (February 2014) and the disposition of payouts held with regard to a block withholding attack (June 2014).  Both of these issues have been discussed with legal counsel in depth.  Our counsel had diligently reviewed available case law that may have had relevance as well as contacted several authorities in the course of their research in determining a proper course of action for these two issues.  There was no perfect solution to these situations and they’ve been handled in manners that best cover any potential liability for Eligius.


looks like i came in at the right time =)
MtGox

The disposition of the held payouts to miners using addresses associated with MtGox had been researched thoroughly.  Eligius’s counsel had reached out to the Trustee of MtGox seeking a method to authenticate and directly pay the owners of record for the MtGox account associated with the Eligius users.  Unfortunately this turned out to be unsuccessful.  The team handling the MtGox bankruptcy case was unwilling to assist Eligius or the users with this situation.  With no way to cryptographically verify ownership of the addresses cousel advised that the only course of action was to release the payouts to their original MtGox wallet addresses.  This in fact done in the final payout for Eligius-Ra.  In the interest of full disclosure, wizkid057 did personally know one miner who utilized an MtGox wallet for their Eligius mining.  In early 2014, prior to the advice of counsel, that payout of approximately 0.4 BTC was manually paid to that miner.  Per counsel, the payout to the original MtGox address for that miner must also still be made and was made in the final payout.  This error was personally covered by wizkid057.

Block Withholding Attack

A potential disposition of funds associated with the admitted June 2014 block withholding attack was also researched extensively by counsel.  The initial resolution was to distribute the funds to the shelved shares during the time period associated with miners who would have potentially been affected by the withholding attack.  This was investigated, and the CPPSRB share log for that time period was analyzed extensively.  It was concluded that the pool’s reward system had already earned enough as a result of short term luck to cover the vast majority of shelved shares that would have potentially been affected by the attack.  Further analysis showed that the majority of the addresses from that time period actually had no shelved shares that would have otherwise been paid had the attack not happened.  Any that did still have any shelved share deficit that could be linked to the attack were either no longer active on the pool or blockchain since that time and/or, if awarded a calculated potential deficit, would be under the 2 TBC low-balance donation cut off balance after such an award was made.  Only a very small number of miners did not fit into these categories as it appears that miner turnover was quite high since then.

General morals coincided with the advice of counsel in this case.  It would not be right to utilize a distribution method that disproportionately benefited the pool itself (in the form of hundreds of low-balance donations) and instead actual miners should be awarded.

The distribution of these funds went as follows, as approved by legal counsel:
Miners from the time period that were no longer active at Eligius nor had a balance but had a potential reward deficit of more than 2 TBC (0.00131072 BTC) had those shelved CPPSRB shares awarded.
Miners from the time period that were either still active at Eligius and/or had an outstanding balance such that awarding their shelved shares from the time period would bring their balance to 2 TBC (0.00131072 BTC) had those shelved CPPSRB shares awarded.
The above only helped less than 0.5% of miners in the final Eligius-Ra payout and left over 98% of the block withholding attack related funds unrewarded.
The remaining funds were awarded to shares starting at the top of the CPPSRB share log.  This had the effect of rewarding a large number of shelved shares of miners who have been active at Eligius over the past half-year or more.

The end result was that these funds were awarded to Eligius miners in a fashion where no miner had an unfair advantage, and, perhaps most importantly, 100% of the funds went to Eligius miners.

Eligius-Ra Final Payout Notes

After all of the above was handled, a final payout was computed.  Normally any payout less than 2 TBC (0.00131072 BTC) would be donated to Eligius after 60 days, however this policy was never actually implemented.  Instead, miners with a balance of less than 1 TBC (0.00065536 BTC) were culled from the final payout.  Those addresses were then removed from the share log and the sum of culled funds were awarded to the share log and another final payout was computed.  This repeated until there were no more payouts below 1 TBC.  Long story short, instead of low balances being donated to Eligius they were instead distributed to other miners who had been actively supporting the pool.

The final payout went to 5,698 addresses in the following transactions:
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As a result, all miners have been paid and Eligius holds no additional miner funds.  Eligius-Ra is shutdown.

Eligius-Hu - The Next Iteration

Eligius has had several different reward systems over its many years of operation.  In that time the mining landscape has changed significantly.  For example, when Eligius was founded the network difficulty was a mere fraction of a percentage of what is today and the number of miners has increased just as much.  Eligius has always been hard at work improving to provide the best pool with the lowest possible fee: none, 0%.

Eligius-Hu is the next generation of these improvements.

New Reward System

Eligius-Hu has moved away from CPPSRB and on to a partly new reward system which I’ve tenatively dubbed SAPPLNS.  This stands for Share Assignment, Pay Per Last N Shares.  Like other iterations before it, Eligius-Hu will also utilize a robust coinbase payout system, directly paying miners from the blocks found by the pool.  The pool pays 100% of the block reward, including transaction fees, to miners.  There are no still no mining fees at Eligius!

Now you’re probably familiar with the “PPLNS” portion of that.  Many pools today use this system.  However, as always Eligius stands out from the crowd.  Eligius-Hu’s underlying reward system is true PPLNS with N=diff*8.  There are no shifts.  A full share log is kept, and when a block is found shares are rewarded accordingly.  While this may seem difficult to keep such a large share log, keep in mind that this work was already mostly done when CPPSRB was created: its share log had no limit on size.  With PPLNS, as you probably know, shares can be awarded to miners multiple times during periods of high luck, potentially resulting in a short term payout higher than 100% PPS (conversely, shares may be discarded during periods of low luck).

Since the N chosen is large (to lower miner variance) the top of the Eligius-Ra CPPSRB share log (after the final payout) was used as a starting point to fill in the initial PPLNS log for Eligius-Hu.

Share Assignments

The “SA” portion of this system is where Eligius once again stands apart from the competition.  Under this reward system a miner is permitted to reassign any share that has been accepted and is in the share log.  What this means is that miners can sell shares they have submitted to Eligius to other people/miners/etc.

For example, in a hypothetical situation let’s say on average at your hash rate you tend to have 1000 shares in the share log that get rewarded per block, and on average this earns you 1 BTC.  Well, you decide to put your shares up for sale at 1.05x their expected value because you desire a lower variance and potentially higher overall reward for your mining.  Someone can then purchase a number of your shares from you.  You get paid your asking price, and the buyer is then awarded by those shares each time a block is found from then on just as if they had mined them instead of you.  This person then gets a generated payout from Eligius for their earnings just as if they were a regular miner.  Due to variance, that buyer may be rewarded more or less than they paid for the shares, on average tending towards 100% PPS.

A shortened summary is that miners can set a price that they want to earn for their shares and either they will be awarded by the pool normally for those shares (not reassigned) or they will be paid their asking price (reassigned).  It’s a win-win for everyone.  Miners can potentially earn more for their shares, and buyers can get generated coins from Eligius as if they were Eligius miners themselves.

Additionally, miners may choose to put their shares for sale for less than their expected value.  For example, you could sell your shares for 98% of expected value.  The result would basically be you accepting a small cut in payouts, on average, in exchange for less payout variance.  Buyers then can assume that variance and, on average, gain a 2% profit (in this example).  In my private discussions with others during development this was a very well received point of the system.

The owner of a share can let it stay in the share log and be awarded by blocks or they can choose to sell it again if they like.

Shares near the extreme end of the share log (soon to be discarded) will not be able to be sold.  Generally newer shares will have more value than older shares as they have the highest chance of being awarded by blocks as many times as possible.  The market will have some generic probability calculations available for sellers to use in pricing.

While shares are for sale but unsold/not reassigned the miner is awarded for the shares as per normal.

Share Market

To make the share assignment system possible, Eligius will be opening a share market where miners can sell their shares to either other miners or general buyers on either a per share basis or automated based on a portion of their shares submitted and a set calculated price.

What will set Eligius above the competition is the fact that all transactions on the share market will be public and will be cryptographically verifiable.  When a miner puts a set of shares up on the market they must sign a message that is associated with their actual mining devices in order to place that sell order.  Then, when a buyer purchases the shares, depending on the seller’s preferences the buyer can potentially pay the seller directly with no financial involvement from Eligius.  Eligius’s market will then track the payout and reassign the shares once the payout is observed on the network.

Zero confirmation payouts to third parties?  That’s crazy right?  Well, no not really.  Keep in mind Eligius is a mining pool and can choose which transactions to include in its blocks, and also that shares are not awarded until the pool finds a block.  So, when a buyer submits a payment to a seller directly Eligius will ensure that this payment is included in its next block (provided it meets all the criteria specified and no anomalies occur before confirmation).  Assuming it is, or the payment received confirmation before this, the shares will be reassigned for that block and the buyer appropriately awarded.  If for whatever reason the payout is not confirmed when Eligius finds a block (either through a double-spend attempt or other issue with the payout) the shares are simply retained by the seller.  This was actually pretty non-trivial to do, and is still undergoing final testing (see deployment section below).  However, in all cases shares are never reassigned unless a seller is paid in a transaction that is confirmed by a block in the chain Eligius is mining on.

Shares that are reassigned are tagged as such in the share log.  When a share that has been sold/reassigned is awards by a block Eligius finds, Eligius will collect a 1% fee on the reward amount.  This is not cumulative per sale and is only collected if and when a share is awarded by a block.  Shares that are mined normally by miners still incur no fee.  The market will make this clear so that buyers and sellers are aware of this provision so they can calculate accordingly.

Disclaimer: The Eligius share market is NOT a bitcoin exchange or any other type of system in which Eligius is a financial service.  The Eligius share market simply facilitates the interactions of buyers and sellers.  Funds related to these interactions do not pass through Eligius’s wallets and are instead handled directly between seller and buyer.  Eligius is not responsible for any losses or any other damages incurred related to the use of the Eligius share market.

Share Market Security and Accounts

The share market brings about something new to Eligius: accounts.  Accounts are still in no way required for mining at Eligius, but are required for participating in the share market.

In order to facilitate the share market and assigned shares, Eligius miners wishing to participate in sales on the share market must create an account for the market.  Accounts and transactions on the market are authenticated using PGP (GPG) signatures.  You must submit a public key to the market website in order to create an account.  At that time you can set a payout address for your account and change your miners’ usernames to a new value provided by the market site (essentially your key fingerprint).  This proves ownership of the hash power and shares being submitted and put up for sale in as cryptographically verifiable a manner as possible.

When shares are put up for sale, the account owner must sign a message with their key and submit the signed message to the market.

All transactions on the market are public and anyone can utilize the market APIs to verify any transaction or sale order.  The PGP/GPG keys used for the market are also public, so plan accordingly.  You may want to use a key specific for the Eligius share market if privacy is a concern.

(Do not change miner usernames at this time, see below)

Deployment Timeline

As of now Eligius-Hu is active and has taken over share processing at Eligius.  Blocks found from this point will be rewarded under SAPPLNS.

Currently the payout system is in standby mode.  Blocks will currently be paid to Eligius’s cold wallet, and then manually distributed to miners once the block confirms.  The calculated coinbase rewards will be verified for the next few blocks to ensure that everything is operating as designed on mainnet before enabling automated coinbase payouts.  This policy will remain for at least the next three blocks.

A new stats page and Eligius home Page are being finalized.  These are expected to be online before end of the week in their initial form.  Tweaks and improvements will be made constantly from that point on to ensure smooth operation.  Until then, please disregard the existing stats and home pages.  Existing Eligius stats will be archived after launch of the updated pages.

The share market will be the last piece to come online and will do so in a fully opt-in manner. Once launched, the share market should be considered to be in beta until otherwise noted.  There will be a place to report any issues.  The target date for the share market launch is within 48 hours of the launch of the updated stats and home pages.

Eligius is currently running a segwit compatible bitcoind, however the pool side updates have not caught up yet.  Eligius will have full segwit support in the same time frame as the above.

---------

That should cover everything.  I’m sure there will be tons of comments and questions, so feel free to ask, contact me directly, or submit a ticket.  The best way to contact Eligius is generally via our IRC channel, #eligius on Freenode.

I will also be making a new thread here on bitcointalk once some of Eligius-Hu's front end is publicly operational. I will also be posting this writeup on Eligius's website.  Please excuse any typos in the above.  Been a long day!

As a note, mining is still being counted and shares are being processed by the new reward system, so keep on mining! Smiley

-wk

TL;DR Version:  Eligius-Ra (CPPSRB) has been discontinued and a final payout made.  Eligius-Hu is online (new reward system based on pure PPLNS wo/shifts) and all mining is towards this system now.  New web-based features (stats, share market) launching over the next week.


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January 08, 2017, 11:53:23 AM
 #5146

nice. this new platform sounds amazing.

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January 08, 2017, 04:37:12 PM
 #5147

Interesting concept, wk.  I'm a bit confused how the "sell-a-share" thing would work in practice.  If I read your description correctly, if I wish to sell shares, I must have already mined those shares.  I'm not selling based on my hashing power, but rather what I've already hashed and recorded in your share log.

Is there a limit on when those shares can be sold?  For example, a share that is about to drop out of the 8N window is certainly worth less to a potential buyer than a share that has just been added.  I, as the seller, have potentially already been paid N times for an old share.

Using your hypothetical example of 1000 shares worth 1BTC, isn't that 1BTC over the lifetime of those shares?  Some of that 1BTC has already been paid to me as the miner prior to my sale.  How is a buyer supposed to know the age of the shares being sold, and whether or not the value proposition is there to engage in the transaction with the seller?

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January 08, 2017, 06:04:31 PM
 #5148

Interesting concept, wk.  I'm a bit confused how the "sell-a-share" thing would work in practice.  If I read your description correctly, if I wish to sell shares, I must have already mined those shares.  I'm not selling based on my hashing power, but rather what I've already hashed and recorded in your share log.

Is there a limit on when those shares can be sold?  For example, a share that is about to drop out of the 8N window is certainly worth less to a potential buyer than a share that has just been added.  I, as the seller, have potentially already been paid N times for an old share.

Using your hypothetical example of 1000 shares worth 1BTC, isn't that 1BTC over the lifetime of those shares?  Some of that 1BTC has already been paid to me as the miner prior to my sale.  How is a buyer supposed to know the age of the shares being sold, and whether or not the value proposition is there to engage in the transaction with the seller?

As noted in my writeup:

Shares near the extreme end of the share log (soon to be discarded) will not be able to be sold.  Generally newer shares will have more value than older shares as they have the highest chance of being awarded by blocks as many times as possible.  The market will have some generic probability calculations available for sellers to use in pricing.

While shares are for sale but unsold/not reassigned the miner is awarded for the shares as per normal.

So in short, yes the example I used was simplified.  The 1 BTC in the example is the expected value over the life of the share.

Miners will be able to set their market accounts to automatically place shares you mine for sale at a calculated price immediately, or once they reach a specified position in the share log.  When a buyer goes to buy a chunk of shares they will have plenty of information available to them, including the position of the shares in the share log, how much reward these shares have already earned, estimated remaining earnings of the shares assuming 100% PPS average, etc.  Essentially, the shares can be sold in chunks that are in particular areas of the share log and the price set accordingly.  Since the potential expected remaining value of any particular group of shares will be constantly changing, the sale pricing will always be based on an algorithm and not a static price set by the seller.  The seller can choose the variables for that algorithm, however, when placing their sell order.

There will be some common sense limitations placed on the market.  Since this is a buyer/seller facilitation that uses the block chain (ie, the funds for the sale never go through Eligius and instead directly to the seller), minimum sell amounts will be used to prevent spam.  A seller can also set a minimum amount for a single purchase.  This will, unfortunately, make it so the smallest miners can't really participate in the share market as it is currently designed.  In the future I plan on adding a portion of the market for buyers to buy shares from smaller miners in aggregate by depositing funds into an escrow account.  But, for the time being, however, buyers can only purchase shares though direct payments to the miner who is selling the shares.

Also keep in mind that this is a pretty new concept and it will evolve as things progress.

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January 09, 2017, 05:15:51 PM
 #5149

Thanks for the update! When will the new stats be live?

Don't get caught up in the game and have a nice day!
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January 09, 2017, 05:17:48 PM
 #5150

Thanks for the update! When will the new stats be live?

A new stats page and Eligius home Page are being finalized.  These are expected to be online before end of the week in their initial form.  Tweaks and improvements will be made constantly from that point on to ensure smooth operation.  Until then, please disregard the existing stats and home pages.  Existing Eligius stats will be archived after launch of the updated pages.

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January 09, 2017, 06:35:25 PM
 #5151

Another block!  Didn't see that coming.
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January 09, 2017, 06:43:23 PM
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Another block!  Didn't see that coming.

Yep!  Looks like I accidentally left part of the old coinbaser in place which put some funds on the old Eligius-Ra 1ChANGe address.  I'll transfer that output directly to the new offline wallet tracker address when the block confirms just to keep up with accounting better for Eligius-Hu.

Looks like the new reward system code computed rewards appropriately, but as the first block for Eligius-Hu going to continue to run tests and monitor everything before allowing the reward system to be fully automated.  I will get a manual payout done soon after the new stats are online.

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January 09, 2017, 07:11:18 PM
 #5153

Another block!  Didn't see that coming.
I just seen the one today on block trail when was the other one I'm still at 1700+ hours

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January 09, 2017, 07:13:02 PM
 #5154

Another block!  Didn't see that coming.
I just seen the one today on block trail when was the other one I'm still at 1700+ hours

As noted in multiple places, the stats are currently not updating correctly.

The final Eligius-Ra block was 446827.
The first Eligius-Hu block was just now, 447370.

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January 09, 2017, 07:30:32 PM
 #5155

Another block!  Didn't see that coming.
I just seen the one today on block trail when was the other one I'm still at 1700+ hours

which miner submitted solution for 447370? i had a solution reported and my s7 jumped to like 7TH/s for a spell but eligius is my backup pool it would be pretty extraordinary if i was the successful candidate.

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January 09, 2017, 07:31:55 PM
 #5156

the payment queue will remain in the new system or not?
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January 09, 2017, 07:32:08 PM
 #5157

which miner submitted solution for 447370? i had a solution reported and my s7 jumped to like 7TH/s for a spell but eligius is my backup pool it would be pretty extraordinary if i was the successful candidate.

1BdcszfZn7ufNAND1KiGyvExG5eED2Acdj

the payment queue will remain in the new system or not?

Yes.  The payout queue is really the only way to handle a solution where the pool pays immediately from the coinbase transaction in most cases AND has a minimum payout setting.  Otherwise the coinbase transaction would be thousands of outputs of mostly dust to small miners every block, and there would be probably no room for transactions.  Then when miners went to spend those tiny outputs they'd pay extraordinary fees.

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January 09, 2017, 07:47:05 PM
 #5158

thank you.looking forward to upgrading the system.
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January 09, 2017, 11:28:37 PM
 #5159

Wk, would you prefer donations being sent to your tip address here or to the 1Stats address listed on the old stats page?  I don't have much but do want to thank you for your hard work.
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January 10, 2017, 10:52:20 AM
 #5160

Sweet, thanks for the update  Smiley
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