Canonical DIG decentralized-identity profile format — a Chia DID paired (via the chip35 DataLayer store description field) with a standard, extendable sparse-merkle-tree profile; each identity field at a standard slot. Format crate (Rust + wasm).
DIG Kademlia DHT — a distributed hash table mapping content (store_id / capsule / .dig identity) to the peer_ids of nodes holding it, so a DIG Node can locate which peers have the content it wants and fetch it over the L7 peer RPC.