The second stage of the Dogethereum bridge was presented on September 5, 2018 at 10 am (PT) and live streamed. The bridge uses “superblocks” to move coins from Dogecoin to Ethereum and collateralization to move coins from Ethereum to Dogecoin. We are excited because this innovation can also be used to bridge other blockchain pairs. […]
Thanks to the invention of cryptocurrencies a new kind of financial product has been made possible, the crypto-backed loans. Following is a brief comparison of 10 platforms that providing access to it. As we can see by looking at the table the options vary greatly respect to the interest rates, platforms fees, and currencies accepted. […]
At CoinFabrik we are organizing internal presentations in response to interesting work we are doing. As we have grown, scheduling time to share our projects and ideas has become essential. Recent presentations have included: Decentralized Blockchain Bridges Last year Oscar Guindzberg, TrueBit, and CoinFabrik partnered to create a decentralized trustless bridge between Dogecoin and Ethereum […]
This article aims to extend the analysis of Bitcoin using Metcalfe’s Law performed by Cryptolab Capital on this article. Here, we are going to summarize some ideas and apply them to other major networks. We are going to update the analysis with Bitcoin to review some points and then, we are going to extend the […]
Some people think that cryptoassets are bubbles without intrinsic value and this is mostly due to the fact that they don’t know how to analyze them. Cryptoassets can’t be analyzed with the same valuation frameworks used in stocks and other non-cryptoassets. However, the crypto-community has been generating some useful valuation models. In this article we are […]
Prior to the Bitcoin blockchain of “Satoshi Nakamoto”, distributed ledger systems were lacking two important properties which are essential for a decentralized digital cash system. The first property which existing distributed ledger systems were missing, was the ability to scale to a network of millions of users. And secondly, systems at the time were not permissionless
CoinFabrik has been hired to audit the INLOCK token sale smart contracts. We started this audit report writing a summary of the smart contracts provided by the client and a list of the analysis methods used to audit the contracts. Next, we detailed our findings ordering the issues by severity, followed by all the observations we considered important to add. We ended this audit with a conclusion explaining how do the auditors value the code reviewed, and what are the most important things that need to be corrected to it to make it work flawlessly and securely.
CoinFabrik was asked to audit the contracts setting the DS Protocol, which has the goal to enable security token offerings as well as managing the token life cycle post-sale. Firstly, we will provide a summary of our discoveries and secondly, we will show the details of our findings.
The contracts audited are from the Securitize private repository. The audit is based on the commit 6817cb339defe4d67e63a3835dffcf95ba458119 , and updated to reflect changes at c3729ea216eb33f093e6e5b209378e4d6728bbd7 .
CoinFabrik was asked to audit the contracts for the Bricks4Us token sale. Firstly, we will provide a summary of our discoveries and secondly, we will show the details of our findings.
The contracts audited are from the bricks4us-smart-contracts repository at https://github.com/Bricks4us/bricks4us-smart-contracts. The audit is based on the commit 535cf8c62a4cd11625e28a357ab5013f4b4c5c54 of branch master.
CoinFabrik was asked to audit the contracts for the Zeex Token sale. Firstly, we will provide a summary of our discoveries and secondly, we will show the details of our findings.
The Zeex Token is both ERC20 and ERC827 compatible. The Zeex Crowdsale has a pre-sale period where additional bonus locked tokens are awarded to users. It also has a whitelist implementation which restringes people from purchasing tokens.
Smart contract security is a serious problem today. Security flaws, misbehavior, and inefficiency are very expensive when you deploy a Smart Contract to the Blockchain. Companies are especially concerned about their Smart Contract code because once it is run, there is no turning back (they are irreversible) and money can be stuck in the blockchain and lost forever. Thus, to make sure their code is written correctly, these enterprises usually hire well known external auditors (like Coinfabrik) because they know that a problem in their code could cost a lot more money if they skip the audit. Since Smart contracts are used to move, store, distribute funds, errors in smart contract code and design must be minimized. Furthermore, since the appearance of the ICOs in the past few years and with their boom in 2017 and 2018, the smart contract security audits have become one of the most ordered services in the blockchain industry.
Coinfabrik has been hired to audit the smart contracts for Stasis sale, the Stable Euro Token.
Firstly, we wrote a brief summary with our discoveries. After that, we addressed the detailed findings and what are the enhancements we propose to improve the code. And at the end, we wrote the conclusion with the most important issues to correct if there were any, and how we considered the code after being analyzed by our team.