NIP-56 - Reporting

Table of Contents

• Reporting
• Tags
• Example events
• Client behavior
• Relay behavior

Reporting

optional

A report is a kind 1984 event that signals to users and relays that some referenced content is objectionable. The definition of objectionable is obviously subjective and all agents on the network (users, apps, relays, etc.) may consume and take action on them as they see fit.

The content MAY contain additional information submitted by the entity reporting the content.

Tags

The report event MUST include a p tag referencing the pubkey of the user you are reporting.

If reporting a note, an e tag MUST also be included referencing the note id.

A report type string MUST be included as the 3rd entry to the e or p tag being reported, which consists of the following report types:

• nudity - depictions of nudity, porn, etc.
• malware - virus, trojan horse, worm, robot, spyware, adware, back door, ransomware, rootkit, kidnapper, etc.
• profanity - profanity, hateful speech, etc.
• illegal - something which may be illegal in some jurisdiction
• spam - spam
• impersonation - someone pretending to be someone else
• other - for reports that don't fit in the above categories

Some report tags only make sense for profile reports, such as impersonation

l and L tags MAY be also be used as defined in NIP-32 to support further qualification and querying.

Example events

{
  "kind": 1984,
  "tags": [
    ["p", <pubkey>, "nudity"],
    ["L", "social.nos.ontology"],
    ["l", "NS-nud", "social.nos.ontology"]
  ],
  "content": "",
  // other fields...
}

{
  "kind": 1984,
  "tags": [
    ["e", <eventId>, "illegal"],
    ["p", <pubkey>]
  ],
  "content": "He's insulting the king!",
  // other fields...
}

{
  "kind": 1984,
  "tags": [
    ["p", <impersonator pubkey>, "impersonation"]
  ],
  "content": "Profile is impersonating nostr:<victim bech32 pubkey>",
  // other fields...
}

Client behavior

Clients can use reports from friends to make moderation decisions if they choose to. For instance, if 3+ of your friends report a profile for nudity, clients can have an option to automatically blur photos from said account.

Relay behavior

It is not recommended that relays perform automatic moderation using reports, as they can be easily gamed. Admins could use reports from trusted moderators to takedown illegal or explicit content if the relay does not allow such things.