I'm afraid you failing to taking into account that ryno was referring to ZK-Snarks lack of ability to be setup in a trustless manner, not NIZKP (Non-Interactive Zero Knowledge Proofs) which is in use in ShadowSend v2 and is trustless.

Since that post by ryno the guys working on ZK-Snarks figured out a trustless setup which is promising if SDC decide to take this route in the future. Info here: https://twitter.com/SDLerner/status/548205708236566530

Just to clarify for you.


A zero knowledge solution has been found, it is being assessed by a qualified auditor. Lets await the results.

Good news regarding ZK-SNARKS - https://twitter.com/SDLerner/status/548205708236566530

I agree. The amount of coding hours the devs put into this in immense and the pretty each feature delivered was unique to the space. In 4 months we've seen PoS Lite (staking), the simply stunning HTML5 wallet, stealth addresses, mobile PoS Lite wallets which stake (iOs and Droid), encrypted chat, and now ShadowSend v2. That an impressive list.

Wider adoption beyond the people who lurk these boards comes with usability and function. With a decentralised marketplace coming soon built into the beautiful UI, along with cutting edge anonymity technology this is now a product with a very real function. Throw in mobile updates with the updated new UI and ShadowSend v2/decentralised marketplace and we have something incredibly special.

There are very other coins out there successfully progressing to innovate and have as impressive display of function as SDC. Make up your own minds but thats my 2c (or 2 Shadowshis)

Lets not even think about the i2p screenshot teaser until we get an official announcement but that is another thing to look forward to it seems

EDIT: Actually lets think about it here it is

Correct me if i'm wrong guys, this is what i've gauged from reading WP and slides of this brilliant system.

When you redeem Shadow token to SDC the Shadow is not destroyed but added to the pool of Shadow tokens. Say Bryan sends 1 SDC to Shadow and holds his Shadow in his stealth address, the 1 SDC is now destroyed. Phillip who is unrelated to Bryan decides to redeem 1 of his 100 Shadows to SDC, which would appear on the blockchain as a newly minted SDC. Clearly a Shadow-SDC transaction has happened but the token could have been redeemed by anyone holding Shadow. The 1 Shadow which Phillip used to redeem his 1 SDC stays in the network increasing the potential outputs.

Poor Bryan might be having fingers pointed at him if it wasnt for the stealth addresses/ringsig/Shadow token/SDC creation and destruction ensuring anonnymity.

Supposedly there is one coming soon according to a few posts back.

Yeah thats an option also. But this system allows the best of both worlds. I think one of the aspects which makes ShadowSendv2 zero knowledge is that SDC is destroyed and new SDC is minted after being signed by ring sigs, so these tokens are like intermediaries for the creation of new SDC on the blockchain.

Correct me if i'm wrong guys, this is my understanding of the zk system.

3. Franklin sends 6,666SDC to his stealth addy with the 'SDC - Shadow' option. Now they are Shadow and have disappeared been destroyed from the blockchain.
4. All Franklin has to do is select 'Shadow - SDC' as the send option and send to the merchants regular SDC address. The ring signatures remove the link between the tokens and the network mints new SDC for the merchant, which are fresh coins with no blockchain history. So no stealth addresses needed for the merchant.

ShadowCash Christmas sale on at Bittrex

Those are the eyes of a man who has just witnessed the birth of zero knowledge transactions.

Who ever dumped and hit my 22.5ksats order, thank you!

Great article once again jdebunt!

Exciting times for sure!

Incredible how close together they build their tall buildings in Vegas. Enjoy yourself 

1. The marketing team is not the same as it was for CLOAK. Shadow have actually marketed the coin vastly different to the approach CLOAK took which was based on deadlines and a lot of hype. Shadow has survived all these months by letting the features they developed do the talking. In particular, ShadowChat encrypted chat, HTML5 PoS Lite wallet, stealth addresses and soon true anon in the form of zk transactions.

2. I'm not sure if the code will become open source straight away. The devs have put hundreds of coding hours into producing their zk implementation, if it was open straight away the tech will be copied into other coins pretty fast as happened with rynos stealth addresses. The code will likely be audited by someone reputable whilst closed, hopefully not too long after we will see open release. This seems a fair approach.

Check your wallet address in the blockchain explorer and see how many coins are sitting in the wallet. That should shed some more light.

SDC is in PoS so mining has finished. However there is a SDC multipool if you want to mine and be paid out in SDC. 

Sweet mary! SDC is the best Christmas present I could have ever asked for

Nice, I love this project. Someone dump on me

Guys, relax. There are those who want fast profits and want the devs to get the zk anon out as fast as possible in order for them to achieve this. The devs however want to deliver a stable and polished product and not a rushed attempt. For those who didn't take part in the first phase of zk public testing, it does work albeit a bit complex. The next phase of testnet will have a simplified experience allowing users to make the zk transactions a hecka easier.

I'm not sure if you guys noticed, but now that that 'whale' has exited and removed his sells only 5.15BTC is needed to 27000sats with 22.7BTC buy support to 14500sats.

If you've been watching Shadow from the start you'd have seen a lot of great tech built and the best to come is just around the corner, patience guys.

I'm not part of the dev team, just my thoughts from reading and speaking to community members. Only SDCDevs has an accurate answer. The problem with giving dates is that devs then need to meet those dates or face backlash, or release a rushed product. I think for this reason the Shadow team have always given loose dates for feature releases. Maybe ryno or co could chime in with a rough ETA.

It wont be very long though, in the sense of what we've seen built over the last few months compared to the tasks left for this zk-ring release.

It wont be very long. The main bulk of the work has been done in getting zero knowledge anon functioning and most of the bugs ironed out (these are the important parts). Now it's just down to making usability a bit easier. As far as I'm aware the next round of testing and fixing should be the last phase before the first release of ZK anonymity on the main network