Quote from: CYPER on August 21, 2017, 01:18:28 AM

Quote from: D_market on August 20, 2017, 07:26:21 AM

Quote from: CYPER on August 18, 2017, 09:53:59 PM

Quote from: D_market on August 18, 2017, 03:35:41 PM

Hi! Thanks for the questions.
We dont use the smart contract technology on the first stage. We have developed our own service which
allows us to process incoming transactions from different blockchains because smart contracts at Ethereum
cant control transactions on bitcoin blockchain. The decision to develop our service can be supported by
the fact that the software used on the main computer has been developed for decades, while the Ethereum
smart contracts appeared only a couple years ago.
2. Our service is monitoring all incoming transactions to our accounts. The service accrues tokens to the
contributors accounts and saves this in the database according to the token sale policy, as described on our
landing page. The contributors can see the amount of accrued tokens on their profile pages. If a contributor
would like to check the accuracy of the token accrual, they can compare the correctness of the calculations
with the information from the blockchain. In this case, the blockchain is the source of the primary data.
4. The service described above also helps us check every transaction twice before sending the tokens and
therefore ensure the safety of gathered tokens. All transactions done by the rules of the service will be
taken into account in full.
5. At that, we are planning on using a simplified smart-contract based on the OpenZeppelin framework (see
GitHub V2) at the end of the second stage of the token sale, which will allow us to solve two main issues:
1) Implementation of the ERC20 interface, which will allow trading our tokens on the external stock
markets.
2) Accrual of the tokens bought by contributors to their wallets using the smart contract feature.
As a result, the combination of our service and smart contract technology of token sale will guarantee
simplicity, reliability, clarity, and safety of the contributions and token accrual to the personal wallets of
contributors.

1 - That makes no sense. You can still use a smart contract for the Ether payments and your own system for the BTC payments. The benefit for your investors is that with a smart contract your tokens will be automatically and certainly distributed, while with your approach there is only a promise and nothing else. The whole point of using a smart contract is to avoid the middle man, which is you. You offer a project based on the Ethereum network, yet you don't use the one benefit it provides. That is counter-intuitive and can be interpreted as a possibility to scam.
2 - The blockchain only shows how much Ether you have received from each investor. No tokens exist yet, so the balance on your website is purely cosmetic.
4 - How can you possible believe that your manual approach is more secure than an automated contract? You are basically denying the underlying principle behind the Ethereum network.

1) Our token sale is currently available for two currencies, and we are going to add more options to choose from for the second round. A smart contract doesnt allow to work directly with other blockchains. As weve already noted, it can include only one cryptocurrency. In this case, ETH. Unfortunately, not all of the investors are working with Ether. Those, who prefer other options, have to search for a way to transfer their coins to Ether, create an Ethereum wallet and invest in the ICO. We believe that all the investors should have equal opportunities.
We decided on the current method based on a unified approach for every customer and the simplicity of the investment process.
Unfortunately, even the smart contract doesnt eliminate the possibility of fraud or scammers. Moreover, recently there were safety concerns with the usage of smart contracts.
2) You can use other sources - they will show you the same numbers. Calling it cosmetic equals to calling every blockchain transaction cosmetic as there is no access to the account.
3) As the recent months demonstrated both smart contract and multisignature wallets do not guarantee complete security. It all depends on who writes the code. We are creating safe and secure code for DMarket marketplace. As the Ethereum smart contract wont be driving the marketplace, weve chosen the simplest and the safest way for token distribution during the token sale.

1 - Your current sale is no different to what you are describing. You currently use 2 currencies (ETH + BTC) and 2 blockchains. If you used a Smart Contract you would still use 2 currencies (ETH + BTC) and 2 blockchains. There is no difference, apart from more security for you investors when using a Smart Contract, because then the token release is automatic. Now every investor has to trust you, that you will do as promised. This is the exact opposite of what the Smart contracts was designed for. And your point about fraud is equally relevant with or without Smart contracts. Actually it is more likely without a Smart Contract.
2 - I am not arguing over the existence of all investors' ether transactions. My point is that no tokens has been created. Please explain to me what Your token balance: XXXX means exactly. What tokens are these?
3 - You will be using ERC-20 tokens, but you won't be using a Smart Contract?

1) In our previous posts, we have already explained you the technical details and our approach, and how it will protect our investor. There is no need to repeat it twice or even three times. It is based on the many-years-successful expertise of our team, that we totally trust and believe in. The investor trusts the project and the team behind it. And we have it all.

We do appreciate your opinion and respect it. We are also kindly asking you to respect bitcointalk participants and do an effort not using red colors while expressing your opinion. Thank you in advance.

2) The token balance on the account is a number of tokens that the investor will receive on his personal respective cryptocurrency wallet by the end of DMarket Tokens Sale phase #2
Everything is clear, transparent and equal for all DMarket investors.

3) We will use a smart contact to distribute our tokens after the Token Sale phase#2. It is based on smart-contract technology as every token on ETH network.
Once again: the combination of our service and smart contract technology of token sale will guarantee simplicity, reliability, clarity, and safety of the contributions and token accrual to the personal wallets of contributors.