The link to the challenge is shown below:
It is now Day 15, and the letter is 'O", OmiseGO
The "OmiseGO" symbol looks like this:
Source: https://coinmarketcap.com/currencies/omisego/
Letter O: OmiseGO



It is now Day 15, and the letter is 'O", OmiseGO
The "OmiseGO" symbol looks like this:
Source: https://coinmarketcap.com/currencies/omisego/