[do not delete pls]

[paid2]

Donate to Tor project!

Click here to donate with cryptocurrency!

[paid2]

🐳 Whale.io est une plateforme de casino et de paris sportifs ultra-moderne, sur laquelle vous pouvez utiliser .TON, SOL, USDT & Bitcoin.. Leur proposition unique est les dépôts et les retraits très rapides, ainsi qu'aucuns frais de retrait, à l'exception des frais de transaction sur la blockchain, qui peuvent varier en fonction des choix de l’utilisateur. Bonne chance pour vos paris !

Visitez la section "Games and Rounds" ici sur le forum et tentez votre chance de gagner lors des tirages au sort hebdomadaires 'Free Bets' !

Les principales caractéristiques en un coup d'œil :

• Des retraits ultra rapides
• Jusqu’à 20% de cashback
• Le RTP le plus élevé possible dans tous les jeux
• Grande communauté avec des millions de joueurs
• Plus de 1000 jeux différents - Tous les jeux populaires disponibles
• Live Casino
• Paris sportifs - Pariez sur tous les grands sports connus
• Paris en direct - Pariez en direct ou même avant le match
• Arrêtez vos paris avant la fin si vous souhaitez vous retirer
• Dépôts très rapides - rendus possibles grâce à l'utilisation des dernières technologies
• Support 24/7
• Récompenses instantanées - Recevez des récompenses en fonction de votre niveau de joueur
• Réglo et fiable - Licencié à Curaçao, notre grande communauté nous fait confiance
• Gagnez de l'argent - Recevez des paiements de bonus grâce aux programmes de parrainage
• Concours quotidiens - sur tous nos réseaux sociaux
• Expérience VIP - Vous le remarquerez dès que vous serez inscrit

[strunberg]

Del

[paid2]

.

[paid2]

.

Donate to Tor project!

Click here to donate with cryptocurrency!

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

..

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

.

[paid2]

1 Background

An important indicator of bitcoin mining is power-consumption ratio,
higher power-consumption ratio, higher income.

 This document introduces multi midstate mode, A scheme to Improve the power-consumption ratio of Mining:

Solution: change the value of the block version.
The feasibility of the scheme is based on: In the bitcoin protocol, the
bitcoin network (bitcoind nodes) allows at least two version(or even
higher version of block). Some bits of the version fields can be
redefined to identify the midstate.

This document is based on bitmain chip protocol, but the principle of
scheme is the same throughout.
2 Scheme principle analysis
2.1.1 The basic principle of bitcoin mining
Necessary parameter:
 Block version: version
 Hash value of the previous block : prev_hash
 The value of the hash tree for the transaction to be
packaged: merkle_hash
 Update time: ntime
 Current difficulty: nbits
The length of each parameter is as follows:
Version
(4 bytes)
Prev_has
h
(32
bytes)
Merkle_ha
sh
(32 bytes)
Ntime
(4 bytes)
Nbits
(4 bytes)
Nonce
(4 bytes)
2.1.2 Mining operation formula
The mining process is to find a suitable nonce value, makes the
following formula was established:
SHA256(SHA256(version + prev_hash + merkle_hash + ntime +
nbits + nonce)) < TARGET
 The range of nonce values is 0~2^32
 TARGET can be calculated according to the current
difficulty=current difficulty/(2^32)。
 Because of the discrete random characteristics of hash
algorithm, to find such a nonce value meets the formula,
traversal search is the only way.
2.1.3 operation process
 Generate midstate：
version + prev_hash + high 28 bytes of merkle_hash：make an hash
to generate midstate。
 Generate work：
Low 4 bytes Merkle_hash + ntime + nbits = data2。
Midstate + 20 bytes 0x0 + data2 = work。
2.2Principle of multi midstate
2.2.1 Mining process
The operation process of bitcoin mining chip as below:
The design ideas are as follows：
1) In N cycles, date2 remains unchanged. In those cycles, the
extended circuit can be closed. N=The number of midstate.
2) By changing version to generate N midstate.
3) Each midstate can make an operation with data2.
As you can see, in 1) turning off the extended circuit periodically can
save the power consumption.
2.2.2 parameter analysis
We know that prev_hash can not be arbitrarily changed, the hash
Merkle_hash is divided for two parts are used in the midstate and
Data
+
constant
midstate
Second hash
extend
compress
First hash
W0 W1 W2 ...... W63
data2 in the, to find a midstate correspond to the same data2, the
only way is changing the version. in the bitcoin protocol, the bitcoin
network (bitcoind nodes) allows at least two version(or even higher
version of block), So proposed this scheme.
Because more than one midstate shared the same data2, so in the
theory when the number of midstate is N, the expansion of the
circuit part of the power consumption will be 1/N.
3 Adaptation of pool
3.1Reason
Change version to generate mulit midstate is completely done by miner. So
Pool need to know the version of nonce which submitted by multi
midstate miner. Then pool can be based on the version information
to restore the complete, correct block data and broadcast out
3.2API definition
Pool customization requirements:
1. Added multi midstate mode query instruction:
In the authentication stage miner will be sent to the pool: {"id": id,
"method": "mining.multi_midstate", "params": midstate_num } if
pool supported multi-midstate mode reply ： {"id": id, "method":
"mining.midstate_change", "params": ["0x00000004",
"0x04000004","0x08000004","0x0C000004"]}, Doesn't relay or
replay error means doesn't support this mode.
2. Pool side only send the current version of the job, miner
change the version itself.
3. Submit protocol need to add version information ：{"params":
["worker_name", "job_id", "nonce2", "ntime", "nonce",
"version"], "id": 6, "method": "mining.submit"}.
4 Recommendations to bitcoin
community
According to the development of bitcoin, the 4 byte (32bits) width of
the version field is completely redundant. ， This multi midstate
scheme can be used as a kind of open universal technology scheme,
can improve the efficiency of the whole network.
This scheme will submit multiple versions of block to the
network ， In order to avoid the forks risk ， we wish to make the
following proposals.：
1. Select N bits from version as midstate mask ，Use only in check,
not as a real version number. suggest N=2。
2. Definition version mask ： 0x0C000000 （ N=2 ） ， Used for block
block version number extraction 。（Note: in the Classic version,
version has used some bits as other uses）
3. Base on stratum protocol add or change the following
instructions：
 Multi midstate query instruction：{"id": id, "method":
"mining.multi_midstate", "params": midstate_num } miner volunteer
to submit the number of midstate.
 Multi midstate query instruction response：{"id": id,
"method": "mining.midstate_change", "params": ["0x00000004",
"0x04000004","0x08000004","0x0C000004"]} Pool decides which
version to use in the end.
 Multi midstate submit nonce instruction ：{"params":
["worker_name", "job_id", "nonce2", "ntime", "nonce", "version"],
"id": id, "method": "mining.submit"}

[paid2]

Welcome to the second edition of the Bitcointalk Pie Baking Contest!

See it in your local board: Bengal|France|Germany|Indonesia|Nigeria|Philippines|Poland|Portugal|Romania|Spain|Turkey

I wasn't expecting that the first edition of this contest would get any noticeable steam when I first shared this idea[1]. Thankfully I am glad to say that last year edition had a great number of entries and totally surpassed my expectations. I considered it to be a great success but it was only because of the community support and engagement. Thank you all.
This year I have a new challenge: To surpass last year success. Without further due, I am glad to announce that the second edition of the Bitcointalk Pie Baking contest is now LIVE!
The aim of the contest is still the same - Celebrate the famous Pie day but instead replace the Pie number with our beloved bitcoin symbol.
Prize:

There won't be 1st, 2nd and 3rd place this year. Per some feedback from last year, it would be great that users could vote in more than one entry. Adding to that I also believe that in such system we should aim to avoid letting votes go to waste. In an effort to strike a balance between ranking entries and making every vote count, this year the voting system will be based on the single transferable voting system[2]. You can see a practical example of the method here[3].

The amount of bitcoin gathered during the event will be distributed equally between the three most voted pies.

Like last year everyone is free to contribute to the prize pool. If you want to contribute to the pot just let me know and I'll update the table below. Currently the prize pool holds the following funds:

New prize (collectible) addition as of 10th of March:
The great artwork posted by 1Dq gave me an idea of an additional prize - A contest inspired canvas collectible made in collaboration with 1Dq! The artwork will be kept in secret and only myself and 1Dq will know the final result. That is, until the winner receives it and (hopefully) posts it!

Here is the main information:

• Canvas size: 30x40cm/12x15in (frame not included)
• The pool of winners of this collectible will be one of the 3 users that will share the podium;
• The winner of the collectible will be chosen using bitmover Bitcointalk Giveaway Manager;
• If the winner of the giveaway declines to receive the award, then another draft will be made using the same tool for the remaining 2;
• If no winner accepts the award, then it shall be made a giveaway between all other entries to the contest;
• This process will repeat until someone accepts the collectible.

Prize Pool:

╔	══════════	╦	══════════	╗
║	Username	║	Amount (BTC)	║
╠	══════════	╬	══════════	╣
║	RickDeckard	║	0.003	║
╠	══════════	╬	══════════	╣
║	PowerGlove	║	0.003	║
╠	══════════	╬	══════════	╣
║	UserU	║	0.001	║

╠

══════════

╬

══════════

╣

║	Total	║	0.007	║
╚	══════════	╩	══════════	╝

Contest rules:

• Pie must be made by yourself and the theme should be Bitcoin related. Check out last year entries[4] if you are unsure if your entry will be qualified or not.
• The definition of a pie, per Merriam-Webster, states:

Code:

a: a dessert consisting of a filling (as of fruit or custard) in a pastry shell or topped with pastry or both

• Any entry that doesn't follow the mentioned characteristics will not be counted for the contest.
• In order to be qualified you should post a picture containing your homemade pie + a piece of paper with your username and date. At least 2 more pictures should be taken during the making of the pie to ensure that it wasn't bought;
• Only 1 entry per user (you're free to include any number of pies on your picture);
• Competition will be held in two phases:
  
  • 1st Phase - From 14th February (00:00 GMT) to 14th of March (23:59:59 GMT) : This is where all the users are free to submit their entries -&gt; Live Countdown
  • 2nd Phase - Voting process from 15th of March to 29th of March (23:59:59 GMT) 17th of March to 31th of March (23:59:59 GMT). Winner shall be announced on the 2nd of April.
    
    • During this phase, users are allowed to rank their entries in order of preference until a limit of 4. You are free to edit the vote until the 2nd phase ends.
    • Users that do not support more that one entry are free to vote in just one entry. You just can't surpass the limit of 4 (suffice to say, entries ranked above the 4th choice will not be considered).
    • No merit sending is allowed from nominees to users which nominated them
• Independently of the submissions that we have, the prize pool will be distributed between the winners;

Who can participate &amp; vote?:

• Users with 30 merit (airdrop merit won't count) and 30 activity.

Contest signature:

The awesome signature made by @jayce last year is available to use once again:

Hero/Legendary:

Code:

[center][table]
[td][url=https://bitcointalk.org/index.php?topic=5485091][size=2pt][tt][color=#e28424]          ▄███▄▄▄███▄
      ▄█████████████████▄▄
   ▄▄█████[color=#e7a561]█[color=#ffd064][glow=#fff,1]████▀▀████[/glow][/color][/color]██████▄
  █████[color=#e7a561]███[color=#ffd064][glow=#fff,1]█  ▀▀  █  ████[/glow][/color][/color]█████
 ▄███[color=#e7a561]███[color=#ffd064][glow=#fff,1]█████   ▄▄   ▀████[/glow][/color][/color]████
████[color=#e7a561]███[color=#ffd064][glow=#fff,1]█████   ████   ▐████[/glow][/color][/color]████
 ███[color=#e7a561]███[color=#ffd064][glow=#fff,1]████▌[color=#dd636e]   ▄▄▄[/color]   ▄█████[/glow][/color][/color]███
████[color=#e7a561]███[color=#ffd064][glow=#fff,1]█▀▀▀   ██[/glow][color=#dd636e]████▀[/color]▀▀▀▀▀█[/color][/color]████
 ▀███[color=#e7a561]███[color=#ffd064][glow=#fff,1]▄▄     ▀▀[color=#dd636e]██▀[/color][/glow][/color][/color]
  █████[color=#e7a561]███[color=#ffd064][glow=#fff,1]█  █  ▄▄[color=#dd636e]█▄[/color][/glow][/color][/color]
   ▀▀█████[color=#e7a561]█[color=#ffd064][glow=#fff,1]███▄▄███[color=#dd636e]██[/color][/glow][/color][/color]
      ▀█████████████[color=#dd636e]▀[/color]
          ▀▀███████▀[/td][td][/td][td][/td]
[td][center][url=https://bitcointalk.org/index.php?topic=5485091][font=Impact][size=17pt][color=#b24e10]Bitcointalk Pie Baking Contest[/size][/font]
[i][font=arial][size=9pt][color=#000]Start baking and submit your entry until [font=arial black]14/03/2024[/color][/td][td][/td][td][/td]
[td][url=https://bitcointalk.org/index.php?topic=5485091][size=2pt][tt]


[color=#ffd064][color=#fff]              ▄█▄▄[/color]▄[color=#e28424]███▄▄▄[/color]
             ▄[color=#fff]██[/color]▄▀▀███[color=#e28424]████▄[/color]
      ▄▄▄███▄[color=#fff]█[/color]▀[color=#fff]███[/color]▄██████[color=#e28424]█████[/color][color=#b24e10]▄[/color]
▄▄▄████████████████████████[color=#e28424]█[color=#b24e10]██▀
[color=#ffb30f]███████████████████████████[/color]██▌
[color=#ffb30f]███████████████████████████[/color]██▌
[color=#ffb30f]███████████████████████████[/color]██▌
[color=#ffb30f]███████████████████████████[/color]██▌
████████████████████████████▀[/td][td][/td][/tr][/table][/center]

Special thanks:

[1]https://bitcointalk.org/index.php?topic=5438434
[2]https://en.wikipedia.org/wiki/Single_transferable_vote
[3]https://en.wikipedia.org/wiki/Single_transferable_vote#Example_for_a_non-partisan_election
[4]https://bitcointalk.org/index.php?topic=5444932
[5]Banner image taken from CryptoBriefing
[6]Table design taken from Stalker template found here. Thank you!