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Upgradable Smart Contracts
Upgradable smart contracts allow developers a way to change smart contract code after it has been deployed. This post dives in to how it is done at a technical level.
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Understanding Token Delegation in DAO Governance
Delegation is a powerful tool that allows token holders to influence decisions, even if they choose not to vote directly. For successful governance, it is important to understand how delegation works.
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DAO Governance with custom contracts, a practical example
In this post we will step through the creation of a proposal to change a variable on an external contract written in the previous post.
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Understanding how DAOs interact with external contracts
The Governor contract can interact with more than just the governance contracts, in fact, it can interact with any contract, including those that have yet to be written.
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What is a derivation path
What is a derivation path and how can I generate multiple unique addresses from a single seed phrase.
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Ledger Error Codes
Attempting to understand the error UNKNOWN_ERROR when connecting to a Trezor.
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Add a custom chain or ERC20 coin to MetaMask
Help users connect to your network by using the wallet_addEthereumChain and wallet_watchAsset methods.
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Checksums are for humans
Checksums are a method of capitalizing certain characters in an address for a specific EVM network. This includes Ethereum, Ethereum testnets, RSK, and its testnet, Binance Smart Chain, and others.
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Tracking COVID Vaccinations using Verifiable Credentials
A quick example of using verifiable credentials in the tracking of medicine and vaccines.
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Using Brave with the RSK Network and Register a .RSK domain
The Brave browser is gaining popularity for its privacy features and built-in crypto wallet. With Chrome and Firefox if a user wants to connect to the Ethereum network they need to download a third-party plugin such as MetaMask or Nifty. The wallet inside of Brave is based on MetaMask’s open-source code. The Browser’s wallet comes connected to the Ethereum mainnet and multiple testnets. You can add a custom network which is how we are going to add RSK.
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A cryptocurrencies primer
With Bitcoin passing $11,000 recently (October 2017) I had a few friends reach out and ask about Bitcoin. As many of you know, I completed a Masters in Digital Currency from the University of Nicosia in the spring of 2018. This post serves as an introductory primer to cryptocurrencies for non-technical folks. I will attempt to stay at a high level and will talk about cryptocurrencies as a whole rather than Bitcoin individually. There are many areas that I skim over (such as mining and proof-of-stake) which will be a separate blog post after this one.
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Public Decentralized Insurance Co-op
A decentralized health insurance co-op could be setup with the mission of providing health coverage to its members. It would operate similar to a non-profit where the focus is on the members and not shareholders. The co-op would use a blockchain as its data structure and each user would run a node with software that would allow then to submit claims, payments and vote. A block would be created on average every 24 hours with a term period being every 30 blocks, or roughly a month.
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Bitcoin Is Money
The following are two essays that I wrote for a Banking and Finance class for my Masters in Digital Currency. The assignment was two short essays, one on why bitcoin is money and another on why bitcoin is not money. Both have been edited slightly.
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Certificate of Accomplishment, DFIN-511 Introduction to Digital Currencies
The University of Nicosia uses the Bitcoin blockchain to verify the authenticity of certificates that have been awarded.
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What is the average amount of time between blocks mined?
I am taking an online class through the University of Nicosia and covers Bitcoin and the Blockchain. It is a free MOOC and can also be used as credit towards their Masters in Computer Science. -
Use of Blockchain for Monitoring, Identification and Notification of Population Health Trends and Outbreaks
In July 2016, the Department of Health and Human Services put out a call for whitepapers about using the blockchain in health care. I had used the Bitcoin blockchain but hadn’t considered how the blockchain could be used outside of a ledger system.