[Stratum] Overlay network protocol over Bitcoin

onemorebtc

sr. member

Activity: 266

Merit: 250

Quote from: rubberpool on May 28, 2014, 04:44:12 PM

Looking for a stratum developer to modify stratum a bit. We will pay btc for the modification

We want to limit amount of shares per minute that an IP can send to stratum AND limit the worksize. This will weaken asics and big farms and make em compareble to gpu miners (so asic owners will just leave and mine something else). Is it possible? Please PM me if you have an idea

sounds like a job for a firewall with rate-limiting.
but: its a horrible idea

rubberpool

full member

Activity: 140

Merit: 100

POOL.MN - we mine the hottest coins!

Looking for a stratum developer to modify stratum a bit. We will pay btc for the modification

We want to limit amount of shares per minute that an IP can send to stratum AND limit the worksize. This will weaken asics and big farms and make em compareble to gpu miners (so asic owners will just leave and mine something else). Is it possible? Please PM me if you have an idea

Sannin

newbie

Activity: 19

Merit: 0

Hi,

can somebody explain me what is the session in stratum?

Quote

{"error": null, "id": 1, "result": [["mining.notify", "ae6812eb4cd7735a302a8a9dd95cf71f"], "00000001", 4]}

Can I ignore this parameter? What is it? Can I set this parameter?

Thanks for reply

Remember remember the 5th of November

legendary

Activity: 1862

Merit: 1011

Reverse engineer from time to time

Quote from: Schleicher on February 18, 2014, 03:31:14 PM

They expect us to reverse engineer python source code

I am not sure if this was sarcasm, but if it was, I would've preferred a C or C++ implementation. I have more experience with those than Python.

MoonShadow

legendary

Activity: 1708

Merit: 1007

Quote from: Schleicher on February 18, 2014, 03:31:14 PM

They expect us to reverse engineer python source code

Consider it a trial by fire. If you can't figure it out, they don't want your help.

Schleicher

hero member

Activity: 675

Merit: 513

They expect us to reverse engineer python source code

Remember remember the 5th of November

legendary

Activity: 1862

Merit: 1011

Reverse engineer from time to time

Am I the only one that was not satisfied with the Stratum documentation? I personally found it lacking in explanation a lot, I couldn't write an implementation.

sundance

newbie

Activity: 22

Merit: 29

Rather, I should say, I understand what's written in the Stratum spec. Would appreciate enlightenment on what I'm missing if you're sure I don't understand what Stratum's addressing.

sundance

newbie

Activity: 22

Merit: 29

I understand it, and I'm talking about the network protocol aspect of it.

MoonShadow

legendary

Activity: 1708

Merit: 1007

Quote from: sundance on February 15, 2014, 07:21:53 PM

Guys,

Nice work on Stratum. A note that I hope you will take to heart --- this problem is already solved by open protocol standards (at least in TCP point to point cases). The rest of the financial world is already using it so for the purpose of easing future integration, it's best to leverage that instead of re-invent the wheel.

The FIX (Financial Information Exchange) protocol already covers all the requirements listed in Stratums spec and has been used for over 15 years in the financial world for relaying messages for trading, market data, request for quotes, and others. A recent open source implementation in C++ allows you to easily define new schema (xml, json) to extend the protocol.

http://fix8.org/

The protocol supports replay through sequence numbering, etc.
There are open source implementations in C++, Python, and Java, and possibly others. Oanda's FX trading system uses it:
http://fxtrade.oanda.com/images/FixSpecifications2.pdf

What you want is this to be adapted to the web server/client model.

I don't think you really understand what problem Stratum addresses.

sundance

newbie

Activity: 22

Merit: 29

Guys,

Nice work on Stratum. A note that I hope you will take to heart --- this problem is already solved by open protocol standards (at least in TCP point to point cases). The rest of the financial world is already using it so for the purpose of easing future integration, it's best to leverage that instead of re-invent the wheel.

The FIX (Financial Information Exchange) protocol already covers all the requirements listed in Stratums spec and has been used for over 15 years in the financial world for relaying messages for trading, market data, request for quotes, and others. A recent open source implementation in C++ allows you to easily define new schema (xml, json) to extend the protocol.

http://fix8.org/

The protocol supports replay through sequence numbering, etc.
There are open source implementations in C++, Python, and Java, and possibly others. Oanda's FX trading system uses it:
http://fxtrade.oanda.com/images/FixSpecifications2.pdf

What you want is this to be adapted to the web server/client model.

mattlondon

newbie

Activity: 1

Merit: 0

I've started a MIT licensed java implementation of a Stratum client.

Its my first check in (i.e. not even 0.0.1 yet!) that I've tested it with some dogecoin pool servers and it seems ok, but it has not undergone any serious production or load testing yet (in particular I've not gone over it with any stress testing for synchonisation yet so there might be some concurrency bugs to be worked out).

It is designed to be fairly self contained and uses a hopefully simple to use observer pattern for call backs into calling-code.

https://github.com/matt1/stratum-client-java

Vinion

newbie

Activity: 6

Merit: 0

Hello

I am building a new miner software and I have a few questions about stratum protocol.

My first question for now is "How can I generate target from the nBit ?"
If someone knows please provide some code in any programming language you like.

Thank you for your replies

slush

legendary

Activity: 1386

Merit: 1097

Quote from: ripper234 on February 16, 2013, 02:41:22 AM

Can you link to them? Perhaps add links to them from the stratum server readme on github?

There are python, php and js implementations, all available on https://github.com/slush0

ripper234

legendary

Activity: 1358

Merit: 1003

Ron Gross

BTW, can someone update here on the status of the server network?

- How many Stratum servers are there? (is there a directory)
- Who runs them all?
- Are there reliable & trustworthy (two separate questions)?
- Has there been any thought about connecting to multiple stratum serves for security purposes (so one server can't lie to you)? I guess that this is a client-side effort, no server-side.
- Where is Stratum used today in production?

ripper234

legendary

Activity: 1358

Merit: 1003

Ron Gross

Quote from: slush on August 21, 2012, 06:40:09 PM

Quote from: randy-waterhouse on August 19, 2012, 08:13:57 PM

Is anybody aware of any java implementations that are using the Stratum protocol?

Open source preferably ...

There are python, php and JS implementations, but I don't know about working Java binding yet Sad

. But please publish it on github if you'll make one Wink

.

Can you link to them? Perhaps add links to them from the stratum server readme on github?

ripper234

legendary

Activity: 1358

Merit: 1003

Ron Gross

Quote from: slush on August 21, 2012, 06:40:09 PM

Quote from: randy-waterhouse on August 19, 2012, 08:13:57 PM

Is anybody aware of any java implementations that are using the Stratum protocol?

Open source preferably ...

There are python, php and JS implementations, but I don't know about working Java binding yet Sad

. But please publish it on github if you'll make one Wink

.

I started something 7 months ago.
Sadly it's not even a working prototype ... think of it as preliminary work - I was just trying to get a feel on how to work with BitcoinJ and Stratum. Feel free to use or ignore.

slush

legendary

Activity: 1386

Merit: 1097

Quote from: randy-waterhouse on August 19, 2012, 08:13:57 PM

Is anybody aware of any java implementations that are using the Stratum protocol?

Open source preferably ...

There are python, php and JS implementations, but I don't know about working Java binding yet Sad

. But please publish it on github if you'll make one Wink

.

randy-waterhouse

newbie

Activity: 41

Merit: 0

Is anybody aware of any java implementations that are using the Stratum protocol?

Open source preferably ...

apetersson

hero member

Activity: 668

Merit: 501

is there a method to query addresses in bulk?
like the proposed bloom filter commands in the main client?

and what is the story if a chain reorganisation occurs? how can a transaction become invalid?

Topic: [Stratum] Overlay network protocol over Bitcoin (Read 37821 times)