NXT :: descendant of Bitcoin - Updated Information

[ebereon]

Solar powered NXT node for conferences!

Berlin conference first! 

I want to support the next conferences with a RasPI completly solar powered in a nice box.
- RasPI model B
- Wlan USB Stick with preconfigured DHCP settings (just turn on wifi tethering on your mobile phone with SSID: NXT, PW: RasPI-NXT)
- Solar panel on top of the box
- 2x Li-Ion battery powerbank (up to 4x 18650 Li-Ion recharchable batterys each) (up to 27'200mAh! It will be able to run NXT node up to 30 hours without Sun!)
(I can sent this to Berlin with batteries included, but not outside germany, so you have to buy the batteries your self)
- open NRS of the RasPI on your mobile phone to show it

All parts will be assembled with latest raspian configured to start up NXT server and login to Wlan 802.11bgn after plugin the power cable of the RasPI.

I will also make a list of all parts, so other conferences can build it's own, because of customs/tax etc.

Some more equipment will arrive next week, then I will also build up odroid U3 and XU (octacore ).

2 photos:
You see 2 cables going into the box, atm the batteries need a first charge with normal 5V/1A powersupplys, it should be done in ~14 hours


And the parts in the box:


If the community like it, I can send it to one of the Berlin conference people. Well, please resend to me when finished

Todo:
- testing odroid U3 + XU
- measure power consumption of all parts, batteries and solar panel to optimice power usage for offgrid solar NXT nodes
- make a list off all pars + weblinks to shops
- howto
- ...

Greets,
eb

[ebereon]

BTW: More pics here -> http://imgur.com/zFJAnzw,zhN1Ny5,VD5oaiz,S6fpGe3,w6mfMfY,r3FPKuD,yD9lncP,8Y7VVXb#6 

[salsacz]

fantastic! where do you live, eb?

[opticalcarrier]

I think one of the top priorities for the NXT guys going to Austin BTC is to try to meet up with some zerocoin folks.

[ebereon]

fantastic! where do you live, eb?

Southern Germany  

[jl777]

I think one of the top priorities for the NXT guys going to Austin BTC is to try to meet up with some zerocoin folks.

+1
By then we hope to have proof of concept NXTcash.

NXTcash could be in Asset Exchange, so that it will definitely be separate from NXT itself. If you don't want to use NXTcash, there is no reason to do so. Still early days so a lot can change, but there will be some unavoidable fees when using NXTcash, probably 2 transaction fees, possibly more. Not sure.

We might also need a DAC to act as cashier. This could be a really cool proof of concept that shows that all the fancy stuff other coins are talking about could be done on top of NXT.

I hope that after client is released, nexern could help with NXTcash. We need some client changes and might need his DNA. Not sure on the latter.

James

P.S. Any chance of reserving the NXTcash asset name so all of NXT could use a common sense name for it? Not sure if Asset Names are transferable. does anybody know?

[jl777]

libzerocoin v0.11 tutorial.

Successfully loaded parameters.
Successfully minted a zerocoin.
Deserialized and verified the coin.
Successfully accumulated coins.
Successfully generated a coin spend transaction.
Successfully verified a coin spend transaction.

Coin serial number is:
50670758816621627632275390863152275966382160624109318714908837898946724293259

Installed libzerocoin and generated a test coin

[jl777]

libzerocoin v0.11 test utility.

Testing if an RSA modulus can be generated...
   [PASS]
Testing if parameter sizes are correct...
   [PASS]
Testing if group/field parameters can be generated...
   [PASS]
Testing if parameter generation is correct...
   [PASS]
Testing if coins can be minted...
   [PASS]
Testing if the accumulator works...
   [PASS]
Testing if the commitment equality PoK works...
   [PASS]
Testing if a minted coin can be spent...
   [PASS]

Average coin size is 133 bytes.
Serial number size is 32 bytes.
Spend proof size is 23567 bytes.

8 out of 8 tests passed.

OK, so I have verified libzerocoin functions in isolation. No major issues getting it running. Now to encapsulate it so Java can call the libzerocoin.

[Anon136]

this has to be a record amount of time between comments in this thread

[jl777]

this has to be a record amount of time between comments in this thread

I thought it must have been broken!
If it weren't for my blabber, it would have been over 90 minutes between posts.

[salsacz]

First chapters of NxtMyths as infographics:
http://nxtcoin.blogspot.cz/2014/01/nxt-distribution-infographics.html
= multimedia

Best quality:


Good night  

PS: donations, as usual   15003961341330858247

[Anon136]

this has to be a record amount of time between comments in this thread

I thought it must have been broken!
If it weren't for my blabber, it would have been over 90 minutes between posts.

wonder why its so quiet. it isnt some sort of holiday or something is it.

[brooklynbtc]

James, how about we explore non-legal recourses first? I've suggested proof of prior art and reputation damage, any other ideas? Maybe steganography for art/video assets?

Maybe we just follow the cryptocurrency style. Open source. Free to use. For everyone!

Usage is fine. Stealing outright is not.

Things like clients should be open source and free to use for everyone. Things like web services shouldn't be open source.. Look at all the BTC and LTC clones. Everyone uses the same client/wallet. And it wasn't created by satoshi. Did it harm BTC or LTC? No..

+1. No matter what we we do, we should avoid to make Nxt a corporation. There is no Nxt entity, only open source individual's works and contribution. Between corporation and theft, I rather choose theft.

+theft

[TwinWinNerD]

this has to be a record amount of time between comments in this thread

I thought it must have been broken!
If it weren't for my blabber, it would have been over 90 minutes between posts.

wonder why its so quiet. it isnt some sort of holiday or something is it.

chinese new year!

[jl777]

this has to be a record amount of time between comments in this thread

I thought it must have been broken!
If it weren't for my blabber, it would have been over 90 minutes between posts.

wonder why its so quiet. it isnt some sort of holiday or something is it.

chinese new year!

This means 90% of all the regulars are all from China!

[Anon136]

this has to be a record amount of time between comments in this thread

I thought it must have been broken!
If it weren't for my blabber, it would have been over 90 minutes between posts.

wonder why its so quiet. it isnt some sort of holiday or something is it.

chinese new year!

This means 90% of all the regulars are all from China!

i looked it up. a lot of countries celebrate chinese new year, not just china.

[msin]

Its quiet here, perhaps the calm before the storm. jl777, great job on the zerocoin project, do you think its doable from the code you have?

[Come-from-Beyond]

Anyone can clone Nxt, but CFB can kill it.

CFB won't kill clones.

[Come-from-Beyond]

So, because Utopian is a Nxt support, it's okay for him to create a clone?

It's OK to clone even for u as long as u don't try to scam ppl.

[jl777]

Its quiet here, perhaps the calm before the storm. jl777, great job on the zerocoin project, do you think its doable from the code you have?

As long as we get several more people to help, we can get a proof of concept NXTcash testnet (Mar?). It won't be usable for end users, but it will show the zerocoin team we are serious. At that point we will either get direct help from them or early releases of their upcoming zerocash as we would be able to help them debug it. Even if we don't we would have shown we can encapsulate C++ and call it from NXT Java code, so as soon as their zerocash is released in May, we can start porting.

At that point, depending on how it tests out, we might even be able to release it, or we might have to refactor it into 100% Java. Not sure on that point.

Still need to solve a few mysteries, too tired now, but maybe somebody else will find an easy solution. Battling with where and how the redeemed NXTcash gets sent. Will it be an asset in Asset Exchange with a decentralized autonomous gateway? Stuff like that. Suggestions welcomed that's for sure as this is pretty cutting edge stuff I don't think many people have much reference to go by, any idea is potentially a good idea.

https://github.com/Zerocoin/libzerocoin/wiki/Integrating-with-bitcoin-clients is the key info on how to integrate zerocoin onto NXT.

The important thing is that NXTcash will be purely optional and if someone does not want to use it, they wont have to. Converting NXT -> NXTcash will be done locally and take about a minute, that is the longest time with the upcoming zerocash release. Also, anybody using NXTcash will need 7gigs on their HDD, so probably will never work so good on smartphones. Current cost will be 2 NXT and maybe a bit more, not sure until we figure out exact redemption control flow.

Feeling a lot more optimistic about this, even without any help from zerocoin team. We just need help from the key NXT peoples!

NXTcash, the next form of cash!!

James