The random disconnection issue is now solved : another stratum node was added to our cluster.

Cheers and thanks for being with us !

For the first time sinces monthes, shelves backlog is now fully backpaid. (not including the shelved balances during the last update).

Thanks for miners still mining with us

Look @ your shelved earnings. Regarding your first question.. Nevermind.

Dear all,

Today we scheduled a maintenance that went bad on Hypernova.
The purpose of this maintenance was to push the new litecoin daemon in its new version 0.8.3.7
As you may be aware, this new branch of litecoin needs to resync the whole blockchain.
During the blockchain syncing, the network difficulty dropped to something like 0.XXXX and the PPS rate skyrocketed.
Those who were mining during that upgrade within that 2 minutes timeframe experienced a WAY too high balance (we're talking about thousands of LTCs)
The auto withdraw threshold feature perfectly worked. Here is how you empty a pool wallet in seconds.

I'm very sorry about your loss. I decide to stop the Hypernova's adventures here.

If the coins (or part of the coins) are returned by those who received the withdraws, I'll be happy to refund those who ask me in PM or at feedback@hypernova.pw (please tag your subject with [refund] as you guess I'll have many mails within the next days)

If you need another pool, I would totally recommend coinhuntr.

Dear all,

Today we scheduled a maintenance that went bad on Hypernova.
The purpose of this maintenance was to push the new litecoin daemon in its new version 0.8.3.7
As you may be aware, this new branch of litecoin needs to resync the whole blockchain.
During the blockchain syncing, the network difficulty dropped to something like 0.XXXX and the PPS rate skyrocketed.
Those who were mining during that upgrade within that 2 minutes timeframe experienced a WAY too high balance (we're talking about thousands of LTCs)
The auto withdraw threshold feature perfectly worked. Here is how you empty a pool wallet in seconds.

I'm very sorry about your loss. I decide to stop the Hypernova's adventures here.

If the coins (or part of the coins) are returned by those who received the withdraws, I'll be happy to refund those who ask me in PM or at feedback@hypernova.pw (please tag your subject with [refund] as you guess I'll have many mails within the next days)

If you need another pool, I would totally recommend coinhuntr.

I plan to implement more infos on the API side. The people looking at it are smart and will help us out finding the values looking weird. Then why not graphing fancy things / tables on the website (that's Soak's part.)

But there is only ONE need that makes fancy stats like your idea (not exactly yours, I already see a way to do this the easy way) a nightmare for the developper : every miner can choose the difficulty of every of their workers.
A worker difficulty is not locked during the time. It can change from share to share.
So it is not possible to make stats globally on a given bunch of shares of a worker during a specific timeframe. You need to process each share individually before having something that looks good. On MariaDB's table with millions of rows, I'm sure you understand the problem.



Hypernova is currently handling ~3000 queries (including transactions) per second 24h/24 7/7.

So, nothing impossible but we need to do the things the right way !

Fine. This choice wasn't a smart one. We've heard your feedbacks and did a rollback this morning (11AM GMT+1) to CPPSRB with 1% fee.
We learnt from our mistake and won't change the reward system again as it seems CPPSRB is the only one people like !

Enjoy the most stable pool ever !

Soak and M0nsieurChat

I see the negative feedbacks there. Let us think and work out a solution.

This is not a definitive fee. We always played and ensured safety. PPS is a risky reward system for pools. We want to start safely then reduce the fee if needed / possible.

We are about to fully switch everyone to PPS, with a pool fee of 4% (should decrease if possible).
PPS Rate @ diff 1 : 0.00000084 LTC (1% fee) is now 0.00000082 LTC (4% fee)

When ? Tomorrow, the 24th July.

What will happen to the current shelved earnings ? They will be cleared the same way as CPPSRB used to clear the shelved earnings. That means, when we will switch to PPS, you'll continue being paid during bad rounds and your shelved earnings will be backpaid during lucky rounds.
Once the full shelved stack will be cleared, there will be no more shelved earnings. No more.

Will you earn less coin with PPS ? Over a long time with a null variance, yes you'll end up with less coins. Does this mean PPS is shit ? I don't think so. We learnt from our mistakes and CPPSRB isn't for sure an easily understandable reward system. People are used and know well the variance of PPLNS and it's OK. People like the nullvariance of PPS and it's OK. People just don't get the variance involved in CPPSRB as well as PPLNS. That's life.

How will we handle the payouts during the launch of PPS ? That's hard to say, but it's reality : we will use the oldest unwithdrawn funds from our miners. Currently, Hypernova holds about 3300 LTC that fully belong to its miners. We've always been honest at keeping your funds safe and we will continue to do so. That's why we've put since the pool launch a "pool reserve funds" gauge on the account page that is fully working.
A pool like Hypernova needs at least ~1000 || 1500 LTC to fight against the variance of probabilities.
A 4% fee @ 900MH/s should give back to the pool 1400 LTC monthly. So, our unwithdrawn funds will be used for only one month.
Don't worry about payouts. Maybe it's not being said enough but : NEVER KEEP YOUR MONEY FOR A LONG TIME ON A POOL ! A POOL IS NOT A BANK ACCOUNT. WITHDRAWN AS SOON AS POSSIBLE !
This advice is not applied by everyone. Indeed, we see Hypernova's wallet growing from days to days. And it's not related to new miners getting on the pool everyday. Mathematically, we have a good ~10% of our funds that never were withdrawn and it looks like that they'll never be. This is these funds we'll be using to launch the PPS.
That is to say ; I'm sure you all will be able to continue your withdraws. Just be warned you'll start to see the pool reserve gauge going down during the first month.

Thanks for your support, we're always open to debates.

Soak and M0nsieurChat

Thanks for your review ! We always appreciate feedbacks.


I would like to add for those worrying about shelves that when you have shelved earnings, you would have earnt the same amount of money in your balance on a PPLNS pool.
Shelved earnings are more an indicator that says "If we were a PPS pool, you would have earnt this bonus coins to kill variance. We'll anyway give it to you if we are lucky !"

There is now the pool luck value in the API for 12h, 24h, 48h, week and lifetime.

It's quite simple actually.

Everytime the pool solves a block it is rewarded ~50 LTC (something around that, we won't count tx bonus from block to keep everything simple), right ?
During the time to solve a block, the pool needs to pay its miners because they're hashing to solve that block and we are CPPSRB. In CPPSRB there is "PPS". So, we're paying miners like the classic PPS way : a share is worth a fixed amount (this amount only changes according to the network difficulty).

So, you'll guess that sometimes during unlucky round we'll have to pay more than 50 LTC worth of hashing to only get back 50 LTC reward from the network finally solving a block. That's what we call an unlucky round aka when the pool distribute more than the reward it got for solving a block.
During unlucky rounds, it can happen that the pool don't have any fund anymore to pay its miners : the shares the pool can't pay at the moment are logged in a specific database and we call this "the shelve".

Concerning lucky rounds aka when the pool distributed less than 50 LTC during a round to get a 50 LTC reward (== excess funds), the extra money from that lucky round is used to backpay the shelved earnings from previous unlucky rounds.

There's a third case : if the pool have excess funds from many previous lucky round and there is no shares in the shelf, this excess funds are kept to continue the payouts like a classic PPS during unlucky round. As long as there is excess money.

So, the pool is exactly like a classic PPS when there's enough money in the wallet. It delays payment for further backpay if there is no money.
It continues to act like a PPS pool during unlucky rounds when there's excess funds from previous lucky rounds and no shares in the shelf waiting to be backpaid.

If you don't understand let me know I'll try to explain it one more time in a more simple way

@antyGMP : I'm glad you find our pool awesome. As you say, we're honest and I'd like to not be the guy that was throwing his pool name around the topic just to get some advertising.
I was really meaning my greetings and cheers to Balthazar (as a pool OP I don't think he might have stolen his own funds) and that would be cool that you edit your message removing this so-simple ltcmine / hypernova comparison. That's not really the subject here.
Thank you !

We Hypernova poolops are proud to see a giant pool like ltcmine.ru following our faith in the CPPSRB reward system.

Good luck to you Balthazar.

The previous fee was charged by the network. It was impossible for us to handle it without charging 80% of this network fee to our miners.

It's now okay with the latest litecoind upgrade.

By the way, Soak added a new luck graph on the stats page. Give it a look !

Shelves are now ALL paid. Thanks for being with us.

(what about raising a bit the pps rate.. Would it be a nice idea ? )

Thanks for the feedback, corrected.

Are you really angry the pool was offering the TX fees if it remained in your balance after withdraw ?

I'm not sure about what your screenshot means because you don't talk about the withdrawn amount.

Hope you'll give me more infos about your withdrawns.

Thanks so much soundasleep !

Today we've moved to a new server for the back-end. Enjoy !
Patch for the 2nd Stratum vulnerability also applied during the migration.