Why Nostr? What is Njump?
2025-04-02 16:50:03
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ChainsLight on Nostr: Smart ass AI Engine Qwen QwQ 32B Thought Process The concept you’re describing—a ...

Smart ass AI

Engine
Qwen QwQ 32B

Thought Process

The concept you’re describing—a cryptographically verified, distributed blocklist of "fake" or harmful Nostr public keys using a Merkle root or similar structure—is not natively implemented in existing Nostr clients as of now. Here's a breakdown of the current state and potential approaches:

1. Existing Blocklist Mechanisms in Nostr Clients
User-Managed Blocklists: Most Nostr clients (e.g., Damus, Flamingo, TwTxt) allow users to manually block specific pubkeys or import simple text-based blocklists (e.g., lists of pubkeys). These are unauthenticated and require manual trust in third-party sources.
Community-Curated Lists: Some projects (e.g., nostr-tools or nostr-relay-list) maintain community-maintained blocklists, but they lack cryptographic verification.
Relay-Level Filtering: Relays can enforce their own rules (e.g., banning abusive pubkeys), but this is decentralized and inconsistent across relays.
2. Why a "Signed Blocklist" Doesn’t Exist Yet
Decentralized Philosophy: Nostr’s design rejects centralized authorities, making a universally trusted blocklist repository incompatible with its ethos. A Merkle root signed by a single entity would create a central point of control, which most Nostr developers resist.
Coordination Challenges: Aggregating and verifying "bad" pubkeys across the network would require consensus on what constitutes "harmful," leading to political/ethical debates (e.g., censorship vs. safety).
Technical Gaps: No Nostr Improvement Proposal (NIP) specifies a standardized format for signed blocklists with Merkle roots. Implementing this would require client and relay coordination.
3. Possible Workarounds
Third-Party Services:
A trusted service could publish a signed Merkle tree of flagged pubkeys. Clients could fetch this tree and verify its root signature. Users would choose which services to trust (similar to certificate authorities in HTTPS).
Example: A community-driven "Nostr Safety List" with periodic signed snapshots.
Client-Side Plugins:
Some clients (e.g., Nostur or Iris) support plugins. You could develop a plugin to fetch and verify a blocklist from a trusted source (e.g., a decentralized storage like IPFS + signature verification).
Mastodon-Style Reporting:
Implement a reporting system where users flag abusive pubkeys, and a consensus algorithm (e.g., tallying reports) generates a blocklist. Cryptographic signatures could validate the aggregated list’s integrity.
4. Technical Feasibility
Merkle Tree Implementation: The technical foundation exists. Clients could:
Fetch a blocklist (e.g., a JSON file) containing a Merkle root and leaves (pubkeys).
Verify the root’s signature against a trusted public key.
Validate individual pubkeys against the Merkle proof.
Trust Model: Users would need to decide which blocklist "authorities" to trust, similar to how GPG keys are signed by trusted parties in a web of trust.
5. Why Manual Checks Are Still Necessary
No Central Authority: Without a trusted verifier, users must still audit blocklist sources.
False Positives/Negatives: Blocklists can be gamed (e.g., politically motivated listings) or incomplete, so critical decisions (e.g., financial transactions) should still require manual pubkey verification.

Final Answer
While no existing Nostr client implements a Merkle-root-signed blocklist for pubkeys, the concept is technically feasible. It would require:

A trusted third party to curate and sign blocklists.
Client-side support for Merkle verification (no NIP exists for this yet).
Community adoption of the trust model.
For now, your best bet is to:

Use manual blocklists (import/export functionality in clients).
Follow community reports on platforms like Nostr Explorers or Nostr邦.
Advocate for or develop a plugin/blocklist service that implements cryptographic verification.
Author Public Key
npub1zya050rzhrvwuwtmfxn8fpuuw7zczzr73wu5yv6xl0j9hv4rahssk8ykjg