Pay Previous Path, 2019, Ethereum DApp.
“Pay Previous Path” allows anyone to store a vector drawing (encoded in a style similar to the SVG path line-art format) on the Ethereum blockchain in return for paying a small fee to the previous person who did so.
You can view it in an Ethereum-enabled browser here:
https://show.robmyers.org/artworld-ethereum/dapps/pay-previous-path/app/index.html
The source code for the series is available here: