Sophophilia Studios team asked me to review their smart contracts code and prepare an audit. Those was quite unusual task because I had very little time to deliver high quality report. It wasn’t easy, but I succeeded.
Robert really stepped up to the plate with this job challenge. We had a very tight deadline and Robert was able to give this job is full attention and meet some very tough requirements in a short time frame. From job posting to finished job was less than a week, and most estimates we got, for once the job even started was 1-2 weeks. Thanks Robert! – John, Sophophilia Studios.
Lunched in late 2017, Awesome CryptoKitties opened a new era of ERC721 based decentralized games. Being a pioneer, they didn’t have to make their decentralized game architecture perfect, they have left this issue to their followers.
CryptoMiner World is one of these followers. We’ve raised questions and problems left by our predecessors and designed the solutions to address these issues:
Immutability vs upgradability in ERC721 based decentralized games
Flexible and powerful access control
Gas cost optimizations, transaction load reduction by leveraging off-chain capabilities
Each of them was in some way interesting and I wanted to share my experience with other people. I asked to speak on prestigious TruffleCon conference on Microsoft Campus in Redmond. I was happy to get an e-mail from Truffle team with information that my speech was accepted.
Unfortunately, because of Visa issues I wasn’t able to travel, but organizers asked me to record short video with my talk so they could present during conference. I did as I was asked and my speech was played in Microsoft Campus.
I guess I can’t say I spoke on TruffleCon, but I am sure I can say that video produced and directed by me ( :)) was played during this conference. I am proud of it 🙂
This is the project I worked on in 2019. It is an optimization module developed for Fairmint company. should be used together winth Uniswap Exchange and C-ORG DAT Smart Contract. The idea is that user can buy FAIR tokens directly from DAT ( C-ORG Decentralized Autonomous Trust ) contract or from Uniswap. Selling and buying price is calculated differently in both of those smart contracts. You can read more about it here:
Short term project. Implementation of Stable Coin based on ERC-20 token for client from Singapore.
This was pretty simple project. The most important factor in this project was to help client to define his requirements. From there it was down the hill. I used Open-Zeppelin Solidity library to implement basic ERC-20 functionality and implemented additional modifications to implement a feature to allow client to:
I consulted and implemented few smart contracts for Snark.Art for their Fortune Cookies project. From blockchain perspective it wasn’t very complicated endeavour. Smart contract was based on standard ERC-20 Openzeppelin library with few modifications. What is so great about this project is that Snark.Art decided to sell AI generated poems using blockchain. I was very happy to be part of project combining two revolutionary technologies: AI and Blockchain.
Here are some poems created by AI persona called Mr.Fox. You should check their website if you want to find more.
Neither of us is human – we’re alike in that sense – Mr. Fox, AI
We must not be scared by the phrase “the end of the human cause” – Mr. Fox, AI
Innovation team from Everis, Madrid asked me to help them to start their work in blockchain space. We worked together for a month. During this time I delivered for them new Smart Contracts, review their code, gave 5 hours training on security issues in solidity and also delivered additional documentation and training manuals they could use in the future. This was very good and interesting experience.
“His professionalism and dedication is absolutely great! We are very glad he could be part of this project! We will keep his contact and hopefully we can collaborate again in a near future” – Everis Madrid.
Robert was responsible for one of the most important business unit of the VIDDO. We had spent long hours together and co-operated in projects and campaigns – and I can tell that he is a detail oriented, innovative and careful perfectionist. His ideas, skills, creativity and understanding of change requests made every project a dream. Robert did not fail me a single time. He was an independent, energetic and proactive developer. If you ever need someone to deliver under pressure, no slip-ups, just results, Robert is your man!
Snark.Art developed very complicated smart contract for their video project – 89 seconds Atomized. I was asked to review it and come up with a new architecture which would make this smart contract easy to upgrade in the future. I was also asked to look for possible security issues. This was few months long consulting and security audit project.
This was my first serious block chain project based on Ethereum Smart Contract. Earthereum is smart contract based strategy game where players buy countries and can attack each other and also pay for defences to protect themselves from attacks of their enemies.
There are three types of military attacks: infantry, tanks, air force. Each attack has different cost and different possibility to harm country being attacked.
It took me 4 months to deliver this product. It was very good learning experience. I was pretty new to Solidity and Vue.js so this was a good chance to learn new skills.