Topic: [ANN] SuperNET NXT asset 12071612744977229797, SUPERNET KMD assetchain in summer - page 64. (Read 736806 times)

Long time lurker here. Waiting for Bter to open up alt coin withdrawals. Having Supernet on Bter was my first foray of dealing with NXT at all. What's the quickest way to get them secure and off Bter once it opens up? I've signed up on secureae- Do I use my nxt id/pub key to send them to? It might be self explanatory once I try to withdraw them from Bter but just want a quick low down (I could research myself in more detail but I want them off ASAP). I imagine I'm not the only non-NXT investor with questions. Thanks

People do not treasure the tremendous value james is giving to cryptoworld by developing a decentralized exchange like InstanDEX.
Since a long time finally something again in crypto that has a real usecase and is a progress in crypto usage.
Keep up going your path James.

I know.
But they can just disabled other withdrawls without turning off all Balances. I don't like when I don't see my money
Also I don't understand their politics. They lost 7000 BTC. So disable BTC withdrawls only. Why disable other coins ?

its only open for withdrawls of usd/cny/nxt

BTER works now. But I didn't see my UNITY. I remove my sell order and they disappeared.

This is the latest tweet. There is still no specific time given for anything.

https://twitter.com/btercom/status/568944687257530368

Any updates about BTER ?

The first version will require fill or kill orders, meaning an incoming order has to match exactly a bid (or ask) that was published. I changed the orderbook API to show the exact "makeoffer" API that is needed to fill a specify entry in the orderbook.

So, display orderbook, find one you like, user the premade makeoffer API and send that.

All the above works and the makeoffer in turn issues a processutx command with the appropriate raw tx bytes:

{
        "fullHash":     "fa063515a7f00288bf6e6a538165df70387c1239dfb069aa443fe8887e2c1aab",
        "requestProcessingTime":        3,
        "signatureHash":        "4a3798451193f9ae3b23dd65b87f60bf78f440a9e39d89e38011dcbb1cdd37c0",
        "transactionBytes":     "0211f3665602d002ec7f665fccae39025531b1cb3c48e584916dba00a7034edc60f9e4111f86145 d048b3c6e60cbe672000000000000000000e1f50500000000000000000000000000000000000000 00000000000000000000000000000000004d8d909417f77f8014fe107b53162e8be913c30cbc82a 74468fc35343ee87c0cbb56d34d524ce9b291d50c4ffc850ef559cbe61a6954b676aeb5fbf6616b b53100000000fd8b0500fdeb9de0ca6441be01b7faf17b381380997f27000000000000",
        "transaction":  "9800660339517622010", 
        "transactionJSON":      {
                "fullHash":     "fa063515a7f00288bf6e6a538165df70387c1239dfb069aa443fe8887e2c1aab",
                "signatureHash":        "4a3798451193f9ae3b23dd65b87f60bf78f440a9e39d89e38011dcbb1cdd37c0",
                "transaction":  "9800660339517622010",
                "amountNQT":    "0",
                "ecBlockHeight":        363517,
                "attachment":   {
                        "asset":        "11060861818140490423", 
                        "quantityQNT":  "10111",
                        "version.AssetTransfer":        1
                },
                "recipientRS":  "NXT-T4S6-E3R5-9QQT-9DQT7",
                "type": 2,
                "feeNQT":       "100000000",
                "recipient":    "8279528579993996036",
                "version":      1,
                "sender":       "12240549928875772593",
                "timestamp":    39216883,
                "ecBlockId":    "13709349563207117821",
                "height":       2147483647,
                "subtype":      1, 
                "senderPublicKey":      "ec7f665fccae39025531b1cb3c48e584916dba00a7034edc60f9e4111f86145d",
                "deadline":     720,
                "senderRS":     "NXT-7LPK-BUH3-6SCV-CDTRM",
                "signature":    "4d8d909417f77f8014fe107b53162e8be913c30cbc82a74468fc35343ee87c0cbb56d34d524ce9b 291d50c4ffc850ef559cbe61a6954b676aeb5fbf6616bb531"
        },
        "broadcasted":  false, 
        "unsignedTransactionBytes":     "0211f3665602d002ec7f665fccae39025531b1cb3c48e584916dba00a7034edc60f9e4111f86145 d048b3c6e60cbe672000000000000000000e1f50500000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000 000000000000fd8b0500fdeb9de0ca6441be01b7faf17b381380997f27000000000000" 
}


The other node, even gets it!

PARSED OFFER.({"requestProcessingTime":0,"amountNQT":"0","verify":false,"ecBlockHeight":363517,"recipientRS":"NXT-T4S6-E3R5-9QQT-9DQT7","attachment":{"asset":"11060861818140490423","quantityQNT":"10111","version.AssetTransfer":1},"type":2,"feeNQT":"100000000","recipient":"8279528579993996036","version":1,"timestamp":39216883,"sender":"12240549928875772593","ecBlockId":"13709349563207117821","height":2147483647,"subtype":1,"senderPublicKey":"ec7f665fccae39025531b1cb3c48e584916dba00a7034edc60f9e4111f86145d","deadline":720,"senderRS":"NXT-7LPK-BUH3-6SCV-CDTRM"}) full.(fa063515a7f00288bf6e6a538165df70387c1239dfb069aa443fe8887e2c1aab) (fa063515a7f00288bf6e6a538165df70387c1239dfb069aa443fe8887e2c1aab)

But here the process stops. I need to make sure the accounts have the assets they are trading. But i need to also add verification that this is an order we want to do, and also that it is not already in progress. I also see a problem where orders dont expire in 5 minutes like they should.

So progress, but not quite there yet. Once these issues are fixed and the other node responds back, theoretically it will do a swap of the two assets.

James

cryptosleuth found the crashing bug! it was an off by one in memory allocation in a totally separate module. Very nice to get some help for this as the crash was only for floating point numbers, but it turned out to be in a totally different area. just using floating point conversions moved things around in the memory so the overwrite of 0 ended up causing a crash on some computers in some cases.

I also  had to verify orderbooks for remote nodes, I think I got all the bugs fixed, still needs to be verified

James

Finally was able to get back to InstantDEX. Some orderbook confusions fixed.

I want to support display of the orderbook in either direction, eg. NXT/BTC or BTC/NXT based on user preference. Sounds easy, but to do this without any redundant storage is a bit tricky and I had the wrong dataset for while, which just confused me

Now it is rewritten it is much less code and much fewer cases to deal with, so I think it will work pretty well and it is also now setup for virtual orderbooks.

One strange parsing crash, but this has probably been there for a while as not many things are using extensive floating point inputs.

Now to port the atomic swap

James

There will certainly be parts of SuperNET that wont be ready until the summer and I expect that we will continue to come up with new projects, so there will be some things that wont be done until after summer too.

But this is why I wanted to get a release structure so we can release new things as they become ready.

With the recent coordinated attacks on the centralized exchanges I am prioritizing getting InstantDEX fully done ahead of the rest, as the crypto community needs a safe place to trade.

James

Considering the size and depth of the SuperNET project, perhaps a more realistic release date is summer 2015

A bug has been found with the realtime MGW. So I need to get this fixed. the bug is having many withdraws at once slows/clogs up withdraws for that coin. So wont have much time for progress on InstantDEX today as solving this wont go quickly

James

Thanks James keep up the good work


Regards,
ActualUpsurge

The InstantDEX core API is shaping up pretty good:

    static char *allorderbooks[] = { (char *)allorderbooks_func, "allorderbooks", "V", 0 };
    static char *openorders[] = { (char *)openorders_func, "openorders", "V", 0 };
    static char *orderbook[] = { (char *)orderbook_func, "orderbook", "V", "baseid", "relid", "allfields", "oldest", "subscribe", 0 };
    static char *placebid[] = { (char *)placebid_func, "placebid", "V", "baseid", "relid", "volume", "price", 0 };
    static char *placeask[] = { (char *)placeask_func, "placeask", "V", "baseid", "relid", "volume", "price", 0 };
    static char *bid[] = { (char *)bid_func, "bid", "V", "baseid", "relid", "volume", "price", "baseamount", "relamount", "type", 0 };
    static char *ask[] = { (char *)ask_func, "ask", "V", "baseid", "relid", "volume", "price", "baseamount", "relamount", "type", 0 };
    static char *makeoffer[] = { (char *)makeoffer_func, "makeoffer", "V", "baseid", "relid", "baseamount", "relamount", "other", "type", 0 };

All but the last one is tested and appears to work in most cases (got stuck for some hours today to get all permutations correct). Suffice it to say it is a lot more complicated than it looks to handle all permutations of orderbooks while also accepting new orders in either polarity. Everything is looking the same, but a bit different and any mistake is getting the inverse of the price, or the volume of the other coin, so we need to really test all possibilities.

Good news is that there are only around 16 possible cases, so once they are tested it will work for all asset pairs in all polarities.

The last API call, makeoffer is how InstantDEX will allow for instant trading. But before this could work, I needed to know all the open orders a node has, so I made the openorders API call, which uncovered the polarity confusions.

Anyway, I had the makeoffer sequence done last July! so just have to port it into the current codebase and make an improvement to eliminate an obscure security hole. But we can put it into testing without that part done, so I am working toward a nofrills order matching (fill or kill) without much error handling so we can test a full cycle with the GUI.

Then as I am fixing any bugs, I will bulletproof things and add nice things like the ability to query current orderbooks remotely and create some monetization possibilities for MMatrix nodes.

It looks like I should be able to get the InstantDEX core pretty much done in the next day or two, so there will be time to start making some automated market makers and other support things. The GUI team says they are on track, so if all goes well, we will be able to test a decentralized exchange that looks and feels like a centralized one.

I know some of you are not 100% comfortable with MGW's distributed setup, especially with recent events. After I get the basic InstantDEX up and running and into testing, I will make some tradebots that will do the "deposit, trade, withdraw" that we all recommend people to do, but sometimes are forgetting to do, well this will be automated. So your funds will be in MGW just for the duration of the trade.

MGW will do this at its cost to cover txfees and the servers. I dont want there to be reasons for people to not do the "deposit, trade, withdraw" over fees. Safety first! I also have additional methods to boost security which will become a necessity when InstantDEX is reaching 100 trades per minute, as that will pretty much fill up all the NXT blocks!

I also want to make sure that the key trading pairs are liquid and have low spreads. We need a safe place to trade crypto that isnt charging big fees. InstantDEX will be this. At first not so many trading pairs will be supported, but it is structured in a way that adding new ones is pretty easy.

The NXT AE is very nice, but it only trades against NXT, it costs a txfee for each bid/ask and even for cancelling them and of course there is the occasional long time between blocks usually just as you really want to do a trade. InstantDEX solves all of these, there wont be any fees for bids and asks and trading can be against NXT or any asset. During the beta test there wont even be any trading fees other than the txfees and even when we activate the fees it will be 1/1024'th of the trade.

My goal is to make InstantDEX the lowest cost trading platform that is also the safest.

James

I used to do it all the time, but then a one guy started complaining about it. saying it was a form of spam...
then several others all agreed with the spam point of view

needless to say I didnt feel like spending time to communicate and then be insulted for it
i do have quite a lot to get done

James

thanks james for rapid answer
don't understand anything in coding but rare to see dev giving such details.
i have faith in btcd and supernet project.

Thanks for the coding update!

Latest I've seen is after Chinese new year, which is 19th February (tomorrow).
So we'll see: who will be the first to release, SuperNET or BTER?

EDIT: depending on how you interpret it, that could mean new year itself or the new year holiday, which could last a full week, so it would be sometime after 26th.

since nobody complained about the tech details confusing them, I will do a daily progress.

   static char *allorderbooks[] = { (char *)allorderbooks_func, "allorderbooks", "V", 0 };
    static char *orderbook[] = { (char *)orderbook_func, "orderbook", "V", "baseid", "relid", "allfields", "oldest", 0 };
    static char *placebid[] = { (char *)placebid_func, "placebid", "V", "baseid", "relid", "volume", "price", 0 };
    static char *placeask[] = { (char *)placeask_func, "placeask", "V", "baseid", "relid", "volume", "price",0 };
    static char *bid[] = { (char *)bid_func, "bid", "V", "baseid", "relid", "volume", "price", "baseamount", "relamount", 0 };
    static char *ask[] = { (char *)ask_func, "ask", "V", "baseid", "relid", "volume", "price", "baseamount", "relamount", 0 };

All the above InstantDEX api calls are spot tested and released into testing.

orderbooks are created dynamically when placebid or placeask is called. this is then sent to the network as bid or ask API calls with the price/volume pair changed to base and rel satoshi amounts for the assets.

allorderbooks returns an array of, yes you guess it!, all the orderbooks

orderbook returns, yes!, an orderbook with base -> rel. So the base NXT, rel BTC orderbook is NXT/BTC
but you can ask for it with base BTC and rel NXT and it will return it with the prices as BTC/NXT

a bunch of gory details regarding asset decimal places and other mundane things, but in my tests it is propagating pretty fast to other nodes. still need to get more timing results to know if I need to optimize it more.

now that the orderbooks are back online, next up is ordermatching. This is pretty tricky as I need to make it do an atomic swap of any two assets, with NXT itself treated as a special case asset. Good thing this was done last summer, but still need to get it ported into the new codebase and get it debugged.

I remember it was quite touchy, so I will plan for just achieving this automated orderfilling triggered with a makeoffer API. it actually needs at least two more internal ones to match the state transitions.

At that point, the low level InstantDEX API would basically be done for asset<->asset and other than supporting the GUI port to use this, I dont foresee too much more at this level. However, this is only the lowest level. After this step I need to add another layer for the tradebots. But I like to just do one step at a time as often when I do that next step I can see a bit better what is best to do next

James

i heard that in a week they will allow for withdraws, but this is third hand from chinese twitter site or something like that.
we do see all the SuperNET assets still in the bter account, so it is still there.
I dont know for sure but I would be surprised if the BTCD isnt still there.

only altcoins like XCP that are linked to BTC address appear to be at risk

James