In order for so-called signature profiles to work and be as easily discoverable as OpenPGP keys (related to https://community.keyoxide.org/d/17-shifting-to-signatures-as-primary-source-of-cryptographic-material/6), we need a novel signature distribution server.
Ideas and requirements for such a server:
Open issues:
Rather than novel, how about leveraging WKD but changing the paths in the queries from "openpgpkey" to "keyoxide" (or something appropriate), and instead of returning keys you get signatures.