Root resolver for hashtree - maps human-readable keys to merkle root hashes

This crate provides the RootResolver trait and implementations for different backends (Nostr, DNS, HTTP, local storage, etc.)

Overview

A root resolver maps mutable human-readable keys to immutable content-addressed merkle root hashes. This allows updating what content a key points to while keeping the underlying data immutable.

Key format is implementation-specific:

• Nostr: "npub1.../treename"
• DNS: "example.com/treename"
• Local: "local/mydata"

Example

use hashtree_resolver::{RootResolver, ResolverEntry};

async fn example(resolver: impl RootResolver) {
    // One-shot resolve
    if let Some(hash) = resolver.resolve("npub1.../mydata").await.unwrap() {
        println!("Found hash: {}", hashtree_core::to_hex(&hash));
    }

    // Subscribe to updates (returns a channel receiver)
    let mut rx = resolver.subscribe("npub1.../mydata").await.unwrap();
    while let Some(hash) = rx.recv().await {
        println!("Updated hash: {:?}", hash);
    }
}