I am writing a program that would monitor changes in balance of a set of ethereum addresses. I did the same for UTXO based coins, and the logic was pretty simple. All of the changes were directly recorded in blocks. But ethereum appears to be more complicated. Which operations I have to monitor to be […]
Imagine you wright your own token following the ERC721 standard. Now you want to create 10,000 tokens of this type. Do you need one contract to manage each token? Do you have to deploy 10,000 token contracts? Can you manage all tokens with one single contract? The use case I was thinking about was creating […]
Are there any available Lightweight version of Geth or Parity client on Android or IOS in order to avoid using Infura service when accessing blockchain form a mobile app?
I am using the Swarm API (github.com/ethersphere/swarm/) with go to upload a directory on a private network. The client API(/api/client) provides a UploadDirectory function which returns a manifest hash. Is there a way to calculate the same Merkle Tree hash without uploading the files to the Swarm storage, preferably with the API ? The reason […]
In my web front-end, I need the ability to interact with the Ethereum blockchain. It’s possible a user has MetaMask installed. It’s possible a user is using the web without MetaMask installed. It’s possible a user is using an old dApp browser. It’s possible a user is using a modern dApp browser. The following code […]
For example GnuPG has a Public Key Server, where users able to obtain other users public-keys by using a key ID. https://security.stackexchange.com/a/110146/179928: OpenPGP User IDs User IDs in OpenPGP are used to connect keys to entities like names and e-mail addresses. These are used to search for keys on key servers, and matching them to […]