Reading Time: 9 minutes
Lately, lots of posts have been talking about how traders get rich from arbitrage opportunities in the crypto market. I have been trying to do arbitrage for months, but I could never obtain a profitable strategy. Therefore, I will tell you here the problems I found while attempting to do it. This might be helpful […]
Reading Time: 7 minutes
The most important benefit that Bitcoin and Blockchain Technologies have brought to us is a low-entry barrier to deploy our own currency and financial ledger. This means that, now, we can easily implement the concepts of Free Banking.
Reading Time: 3 minutes
Coinfabrik was asked to audit the contracts for the RightMesh Token sale. In the first part, we will give a summary of our discoveries and follow them with the details of our findings. The contracts audited are from the RightMesh repository at https://github.com/firstcoincom/solidity. The audit is based on the commit f24ea6c5787b2d40423f4dc312d832592b1cd335 at branch master. Summary […]
Reading Time: 3 minutes
Coinfabrik was asked to audit the contracts for the Theta Token sale. In the first part, we will give a summary of our discoveries and follow them with the details of our findings. The contracts audited are from the Theta repository at https://github.com/thetatoken/theta-erc20-token-sale. The audit is based on the commit 46592ac461949fa793b9d0dc1f59df9bf7ea07f3 and updated to reflect […]
Reading Time: 3 minutes
Coinfabrik was hired to audit the contract in terms of its security. First of all, we will analyze the code and deliver a summary of the reviewed contract. After evaluating the contract, we will write a detailed description of our discoveries and proposed changes, followed by the conclusion. The audited contract is from the DMarket […]
Reading Time: 4 minutes
Coinfabrik smart contract security auditing team was asked to audit the contracts for the CDX platform. In the first part, we will give a summary of our discoveries and then the details of our findings. The contracts audited are from CDX’s repository at https://github.com/commodityadnetwork/CDX. The audit is based on the commit c05cf82983904b15a4b0ec790cce9e583d96bc0f. Summary The audited […]
Reading Time: 6 minutes
Cryptocurrency Exchanges Anyone who wants to get into the cryptocurrency market and does not want to mine blocks needs to exchange his fiat money at an exchange, the only alternative to this is to get cryptocurrency from another holder. Centralized exchanges like Bitfinex, Coinbase, Kraken, Poloniex or Shapeshift intermediate the bid and offer matching process […]
Reading Time: 7 minutes
CoinFabrik’s Smart Contract Audit team audited WorldBit Token sale ICO’s smart contracts. The contracts audited are taken from the WorldBit repository on https://github.com/CoinFabrik/ico/tree/world-bit. The audit is based on the commit 445cc0c28894a85cb58f54631666deafdd35d859, and updated to reflect changes on 21abcc3bde6d64d4aee391544fc9332fc9f2749d. Summary The audited contracts are: ERC20Basic: non-approval half of ERC20 interface. ERC20: Full ERC20 interface. FractionalERC20: Full ERC20 interface […]
Reading Time: 2 minutes
We are compiling a list of recent developments in the sector of blockchain technology. Our focus is mostly on projects which promise scalability, but includes also proposals which aim to overcome some deficiencies in Bitcoin´s PoW based blockchain, e.g. which aim to improve fairness, usefulness, or privacy. You can find the current state of our work […]
Reading Time: 4 minutes
It is important to have an estimate of risk for a portfolio when trading with financial assets. Two basic and commonly used risk measures are value-at-risk and expected shortfall. We will illustrate the two concepts with an example and provide the necessary R code to actually calculate the values of both measures. If we take […]
Reading Time: 4 minutes
By Sergio Demian Lerner Executive Summary In August 2017, REAL engaged Coinfabrik smart contract audit team to perform a security audit of the REAL crowdsale smart contracts. The purpose of the audit was to evaluate the security of the smart contracts. The source code was retrieved by Coinfabrik from https://github.com/RealEstateAssetLedger/real_contract commit e8af021445785ad0e36c54adf6568b079ec6293d on August 11th […]
Reading Time: 1
Some users asked me to update the investment spreadsheet because it had an issue with the price API I am using to update cryptocurrencies’ prices. As the spreadsheet asks the price very often, Cryptocompare API answers that the quota was exceeded. To correct this problem, I added a new cell to specify how often you […]