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blockchain based code repository - advantages:

apps = code = data -> Homoiconicity [1]

1.  run and evaluate encrypted/compressed and even signed code/apps without installations
2.  loading apps within seconds from blockchain, server, local or any other remote location
2.  no update procedures needed, autoload the lastest version
3.  native, complete app history (versioning)
4.  jump back to any version just by a click
5.  run apps from everywhere, even nested resources are resolved
6.  super tiny footprint, just some kb's (smaller and loading faster than a modern webpage)
7.  always availabe, thanks to blockchaintech
8.  easy to built a complete app store including screenshots, also hosted on blockchain
9.  store apps as plain textfiles for running localy or modifying
10. also usable as pure code/modul repository
11. code can also chained, building very complex apps from remote fraqments
12. apps can be written back persistant into the blockchain, including encrypted data
13. apps can transferred during runtime to other appusers via tcp/udp or even via AM (signaling)
14. apps are able to selfmodifying[3] on demand, building new context and structures
17. apps can interact with outer resources like requesting quotes, news, blockchains within a sandbox or isolated state
18. apps can clone itself while running and launched right after within it's isolated state
19. source can be chunked and recombine from blockchain during runtime

helix:
1. zero dependencies, cross OS, tiny (clientversion ~650kb | ~350 server version) no installation needed, just click and run
2. gui is 100% procedurally generated, even biggest gui and unusual visualization doesn't increase the size much.
3. advanced gui generator to create custom built visualisation widgets (e.g, for financial analytic)
4. full DSL[2] and FFI[4] support, JIT compiler for C in work (e.g c libs for intense server side solutions if needed (e.g. cryptowork/ML)
5. built in messaging, robust tcp stack for various protocols able to modify and rewrite on runtime.
6. fine granulated sandboxing on network, file access and console commands

[1] http://en.wikipedia.org/wiki/Homoiconicity
[2] http://en.wikipedia.org/wiki/Domain-specific_language
[3] http://en.wikipedia.org/wiki/Self-modifying_code
[4] http://en.wikipedia.org/wiki/Foreign_function_interface

another example  but here the app is executed just by copying the compressed and encrypted source from above into the copy&paste loader.

and here the last one. this tetris game is ~3.3 kb in size and chunked into 4 AMs (18327578827800239413 15815344331731094750 4359437905449731972 9140980582430884508 ).
loading is ~4 sec. while these examples are very basic it nonetheless shows that blockchain based hosted apps are very usefull.
much more complex apps like. e.g. the asset exchange prototype (see http://finhive.com/download/ae_s.png  ),
are at around ~12 kb. storing them into the nxt blockchain costs just 0,25 usd, which is quite cheap.

disclaimer:   
the whole stuff here is just a quick and dirty hack i made the last weekend. while the procedure how to store and run apps/code from the blockchain was clear,
i was in the need to check this quickly for the FinHive project, which needs this features later. so, it's not pretty nor usefull atm but it works well and much better with the right tools.

Well, that is interesting. I think I have an idea what you are trying to do here.

Could you give a high-level description of what a user can do with helix?

this is just a test for the later helix client (distributed financial analytics and visualization).
as mentioned i was in the need to test this to get an feeling about the behaviour and loading times.

in general someone could built a complete decentralized code repository based on this but this is
not my primary goal here.

i intend to use this tech to store machine learning | code and data (topologies/weights and stuff like this.) into the blockchain without bloat.
since apps are based on optimized DSL code the payload is very small but executable from anywhere. this has many advantages.

user could form a very powerfull financial grid (supercomputer), connected via blockchain to compute massiv data and store the best
AI back into the blockchain, envolving step by step via GA into an optimal computation grid.
 

That is cool.

yes, since the code is loaded from blockchain directly into the memory (no storage needed on clientside) and then decrypted and decompressed
it is also well secured. this is needed to create usefull stuff to reach the external market as fast as possible. a small apps store for financial
tools will be included, not only crypto but also for traditional traders (if possible very much of them).

user could form a very powerfull financial grid (supercomputer), connected via blockchain to compute massiv data and store the best
AI back into the blockchain, envolving step by step via GA into an optimal computation grid.

You could reward computational nodes based on their submissions.

Quote from: ChuckOne on November 17, 2014, 08:00:03 pm

That is cool.

(What's it for? Skynet?)

its not for Skynet
it IS Skynet!