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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 15/09/2017, 11:19:08 UTC
@Invis

The 10-15 seconds you mention is spooky near by the delay after which blocks arrive at my local node daemon.

I've tried to modify my pool to compare mined blocks against official explorer list. That worked stable but is also incorrect.
Block on height 84404 has same hash in my pool and in explorer list. One can assume, origin of block is my pool. Due to my changed this block get unlocked and *not* marked as orphaned. But looking in my pool wallet, I can see, that the reward for this block was cancelled. Don't know why. But I'm getting more crazy. I'm spending money on blocks that are orphaned really, even if official block list claims not.

Same with block 84430 and 84431, where both are contained in official list but only 84430 is accepted by network. To summarize: I think one can trust on accepted blocks by network and do NOT trust block list on official coin website.
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 15/09/2017, 08:04:39 UTC
Hum, really sad.
I've tried to debug block at height 84230:

1) My pool shows hash 14cc2ff
2) Explorer list shows hash 14cc2ff
3) Dark's pool shows hash 810601
4) And - that's creepy - my local coin daemon shows hash 810601 also

My coin daemon accepted block from Dark's pool. From this point of view, it's understable why the block get's marked as orphaned. And *this* is really a bug in blockchain.

Code:
print_block 84229
block_id: b4e06219188e0527ab56add3bb03f6dc20cfdee0b4e15384f74a8b6c998923a7
{"major_version":1,"miner_tx":{"extra":"01163759b3f005d8a3478db1d87658a240bcfbcaf2ea3c36cdc9564786f88791dc02080000000011788473","unlock_time":84288,"version":1,"vin":[{"type":"ff","value":{"height":84228}}],"vout":[{"amount":306601,"target":{"data":{"key":"b6b7bef8cd2d3870fb49a9406cdf7d43054c0e251b27ea4c917748cbbc1c9d4e"},"type":"02"}},{"amount":3000000,"target":{"data":{"key":"e7a8419e72acf5fe44379369411d136dea82eacc927bf5b5bd2f131c14d19e17"},"type":"02"}},{"amount":80000000,"target":{"data":{"key":"2b0faa547391b04860883b9e6e27ff6aa653ac86b25d6d130827a1cb9f516b1c"},"type":"02"}},{"amount":800000000,"target":{"data":{"key":"d0985af6793a64d69bde027ac7727793200bace868abe831a6f1d8e3c429cf0b"},"type":"02"}}]},"minor_version":0,"nonce":"0a0921b2","prev_id":"5a60691574d6e5f1f3e753b848d9452cb84889c4bade6f4f37ddcc3236a49f19","timestamp":1505461640,"tx_hashes":[]}
print_block 84230
block_id: 9e865479889a6bf69a16b6917604f894979a3aa2378a03e488e57f6a93f19f1d
{"major_version":1,"miner_tx":{"extra":"01296f27f29b3e6a88f20eb355f984b9925e1b547119f635b16e17b541390319c502080000000037e4d162","unlock_time":84289,"version":1,"vin":[{"type":"ff","value":{"height":84229}}],"vout":[{"amount":306391,"target":{"data":{"key":"83eeb99766b79287932b424dd4711cc1b7319f90a0b453e3aa526ee2ce982d37"},"type":"02"}},{"amount":3000000,"target":{"data":{"key":"ce1b475ac4ccece87515f4ccb3c9975e68cba9a1d52a17626c2d946603108a14"},"type":"02"}},{"amount":80000000,"target":{"data":{"key":"b2127a8410662f8d69ac16392f5af463d8a9535876bdb3da3a82f859c3272908"},"type":"02"}},{"amount":800000000,"target":{"data":{"key":"1d8b73034a694d10d6cc65bd62765836505f5a12c83955bda1d65d042879521d"},"type":"02"}}]},"minor_version":0,"nonce":"b5100000","prev_id":"b4e06219188e0527ab56add3bb03f6dc20cfdee0b4e15384f74a8b6c998923a7","timestamp":1505461725,"tx_hashes":[]}
print_block 84231
block_id: 8106016049118d9d4659d40101f3fb850cf1ee7edb7e29dc98c8a8cccbab374d
{"major_version":1,"miner_tx":{"extra":"01c376e9a4801976e6383a26e753a7390b4faecc65ee82751801297adb43dc380e0208000000001fb7e4db","unlock_time":84290,"version":1,"vin":[{"type":"ff","value":{"height":84230}}],"vout":[{"amount":306180,"target":{"data":{"key":"3e0f24dd55d1ee56954cb15870f49a517f0e8837b6108ff36fce60b225e84745"},"type":"02"}},{"amount":3000000,"target":{"data":{"key":"60748d4f398aa59b5df5ca813811a754ea9b71bcbb8f91a9bbc2a88e8a8f99c4"},"type":"02"}},{"amount":80000000,"target":{"data":{"key":"89bf02af8c9183ec4fa99d4d5d729527d46393a7ba8337d6096dd81f799e7c4b"},"type":"02"}},{"amount":800000000,"target":{"data":{"key":"a6512c0a438f88f71cfbffd358557c07f23071bc5c6ff0b7dfac0c1219305efb"},"type":"02"}}]},"minor_version":0,"nonce":"53360000","prev_id":"9e865479889a6bf69a16b6917604f894979a3aa2378a03e488e57f6a93f19f1d","timestamp":1505461770,"tx_hashes":[]}

Most strange thing is, that blockchain is always one block ahead. So block height 84230 in my local blockchain is 84229 in official explorer list.

Hah! See block list at Dark's pool. Even if official explorer list claims, that my block hash at 84230 is correct, Dark's pool has unlock his invalid block!
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 15/09/2017, 07:43:15 UTC
Really, I've overlooked the blocks. Thank, I'll dig into it and give feedback.

I know that Dark's pool is not yours, but you've written you are in contact with him. Don't you think net hashrate is going down because many miners are bad-tempered?
And yes, most orphaned blocks are blockchain related, but I think it's a combination of short block time and long sync time.

I don't think a coin will die because maintainer is not reachable for 3 days. Keep cool and wait some more days.
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 15/09/2017, 06:50:48 UTC
Also, I don't think that more hashpower means more orphaned blocks. Since yesterday the hash power doesn't has increased. As you've already said, hashpower of network is decreasing instead. So your theory might be wrong.
But as you've noted, Dark's pool has more orphaned blocks since yesterday. And (sorry for repeating), I think, that's because Dark's pool owned nearly all hash power in past. But now, that some of its hashpower has migrated to other pools, there is a really hard competition between pools to find next block. Because block time is so short and blockchain sync seems to be too slow, there arise different blocks on same height.
I wonder why it takes 10-20 seconds until a block, that was found by Dark's pool and accepted by blockchain as new top block will appear in my local coin daemon. So my pool often works 10-20 seconds for nothing until it get's notified about new top block. And when block time is 60 seconds, it's plausible that there appear many orphaned blocks.
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 15/09/2017, 06:42:48 UTC
@Invis

So much investigation is needed ^^

1) I cannot find blocks in my pool (when comparing block height and hash with official list in explorer) that are valid but marked as orphaned. Please mention some blocks which are marked as orphaned but have to be unlocked.

2) I cannot explain why blocks in explorer are doubled!? Sure, some of my valid blocks appear multiple times in this list, but there are much more blocks in explorer list, that were not found by my pool. So this should be nothing related to my pool setup.

3) The seems to be a big misunderstanding. I wonder, why your pool displays a much more hash rate than the network totally has. I think this is the reason why you pay only 30-40% of really earned coins. The hash rate that my pool runs at is plausible. So, are you really sure, that there is not a wrong configuration in Dark's pool?

4) Thanks for hint about missing explorer links.

I want to mention, that it's not my intention to bring other pools down. But as I'm operating pools for KRB, AEON and some other coins, which run fine, I'm interested in solving the issues, that all pool operators and miners can participate at this coin.
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 15/09/2017, 05:52:43 UTC
Quote from: javier1991 on September 15, 2017, 01:24:27 AM
Quote from: minepool.de on September 14, 2017, 09:31:27 PM
@OrangeJam @vitik @rabudde

It's a bit off topic, but as it is in beta state yet, I will open a separate ANN thread later.
I think my pool is running stable now, payments are working. Calculation of hashrates and payments are also correct.

There are many orphaned blocks still. I really believe it's due to short block time. To verify this, it would be great to get some more hash power. Even though for some hours.
If possible let's test at https://xlc.minepool.de


hello good night,  i just moved 1.4 khs to your pool but i see that blocks are found and still 0 reward for me? hmmm i will wait a little more before switching to another hmmm  pplns or pps pool? most of blocks are uncle and not getting paid by blockchain?  waiting for your answers  

https://s26.postimg.org/bspkxa5zd/image.png

Thanks for support.
There is no bug, you should have been payed yet (I can see so in payment list).
It's a PPS pool, at this time (early stage/new coin) I think it's not really necessary to use PPLNS, due to short block times and high rewards. Maybe in future.
As I've written, orphaned blocks are related to the fact, that there is another big pool with more hashpower which finds a block earlier mostly. So my guess is, when I gain more hash power, the orphaned blocks should decrease. But that is a fact that belongs to blockchain itself, really.
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 14/09/2017, 21:31:27 UTC
@OrangeJam @vitik @rabudde

It's a bit off topic, but as it is in beta state yet, I will open a separate ANN thread later.
I think my pool is running stable now, payments are working. Calculation of hashrates and payments are also correct.

There are many orphaned blocks still. I really believe it's due to short block time. To verify this, it would be great to get some more hash power. Even though for some hours.
If possible let's test at https://xlc.minepool.xyz
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 14/09/2017, 13:42:29 UTC
@Invis

I've a working pool now with correct rewards and unlocks, so your 30-40% is not a problem of blockchain. I'll test the next hours and if all is fine I make my pool public this evening (CET).
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 14/09/2017, 12:49:06 UTC
I know the reason for most of my orphaned blocks. Daemon blockchain is buggy, really.

I've mined block 83285 with hash 77e952ddc8ea36cf357b93b77b6a80560c41854e2c9917ba4c1853e7acec55ce (see https://explore.leviarcoin.org/).
But a print_block 83285 returns

Code:
block_id: bf242371ea86b300aed3b38e41d232d8a8ca34f82a4a15cb50cb6d27ac1ceb0b

WTF? Why does the coin daemon my pool is connected to, return another block hash completely different than official blockchain?

EDIT

print_block 83286 returns

Code:
block_id: 77e952ddc8ea36cf357b93b77b6a80560c41854e2c9917ba4c1853e7acec55ce

So my blockchain, which is right now completely new synced, is one block ahead of official block chain!?
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Re: [XLC] ★LEVIARCOIN★ DRM and In-app Purchases
by
minepool.de
on 14/09/2017, 10:07:27 UTC
@Invis @OrangeJam @vitik @rabudde

I followed this thread the last days and can confirm some strange behaviour.

I) Also, my coin daemon very often outputs:

2017-Sep-14 11:57:31.476950 WARNING Block e9cbdae25c8078ff32d50ae0240f4e5bb31198ee8e499052c4c3a1a8339ea365 added to alternative chain. Index: 83162
2017-Sep-14 11:57:51.270018 INFO    Switching to alternative chain! New top block hash: e9cbdae25c8078ff32d50ae0240f4e5bb31198ee8e499052c4c3a1a8339ea365, index: 83162, previous top block hash: 5d0c5b01739ab78dafc9f78bf5ec2e8e16a1c134902f40985f72ecbc2360f506, index: 83161

II) My pool produces some valid blocks, i.e. block hash for height 83154 is correct one as listed on https://explore.leviarcoin.org/

III) Some blocks seem to be orphaned really, i.e. hash for height 83161 is different from official block list (see also above)

IV) Biggest problem: I don't know why my pool cannot unlock the valid blocks. Even if height 83154 seem to be valid it's marked as orphaned by pool.

I planned to setup a public pool and I have ~10% of total hash rate available at the moment. May be it's related to combination of low hashpower with really short block time. But I have no idea where to look further.
Any hints or ready to switch some hash power to my pool for testing purposes?

EDIT: @Invis your payment rate of 30-40% seem to be related to your pool hash rate only. Even if my pool cannot unlock block at the moment (I don't know why), my pool wallet receives full reward. So I assume, if your pool hash rate is going to be fixed then miner rewards will be correct.