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Verify Reputation

Verify Reputation

This service returns reputation information about a pubkey, including a list of pubkeys who follow it sorted by an algorithm. Try it live on npub.world.

Example use-cases:

  • Helping users assess the reputation of a npub
  • Showing relevant followers of that npub
  • Reducing the probability of successful impersonators

Kinds

  • Request: 5312
  • Response: 6312
  • Error: 7000

Request parameters

Param Type Description Default Value Max
target (required) string Pubkey whose reputation is being requested - 1
sort string Algorithm used to sort results globalPagerank 1
source string Pubkey that provides the “point of view” for personalized algorithms The pubkey signing the DVM request 1
limit int Maximum number of results returned 5 100

Pubkeys can be in either hex or npub format.
Sorting algorithms can be found here.

Request

Example nak command 

nak event -k 5312 --tag param="target;726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11" wss://relay.vertexlab.io

Example request event 

{
  "id": "56729c03239d0d80d0641caa4561c55a061cd2f30f1fe017efe712b37e8fcb0c",
  "pubkey": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
  "created_at": 1745933480,
  "kind": 5312,
  "tags": [
    [
      "param",
      "target",
      "726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11"
    ],
  ],
  "content": "",
  "sig": "ba113d347aa064603193751fd74862e2e8490ba1f1dbed3a1e660212d80a4adcbed0983e3c5f0363d814311c9713db701e72379f1c3c2579a045fc817d8a4112"
}

Response

Tags

Tag Description
e The event ID of the request
p The pubkey that signed the request
sort The sorting algorithm specified in the request
source The source specified in the request (present only if sort=personalizedPagerank)
nodes The number of nodes in the graph at the time the request was made

Content

The content field is a JSON-stringified array of objects, each formatted as:

Properties Types Description
pubkey string a nostr hex pubkey
rank float the rank computed with the sort algorithm

The first object always contains the pubkey and rank of the target, as well as its follows and followers counts (int).

The subsequent pairs are the pubkeys and ranks of the top followers of target, sorted in descending order by their rank.

Example nak command 

nak req -k 6312 -k 7000 --tag e=56729c03239d0d80d0641caa4561c55a061cd2f30f1fe017efe712b37e8fcb0c wss://relay.vertexlab.io

Example response event 

{
  "id": "c9670c7cb3ed65bdd10319ebf31f1905007965226b97e3b5cd2d61b528b575af",
  "pubkey": "5fc48ac4765ff81e9c51014b9d2f2c91621370f4c6b5452a9c06456e4cccaeb4",
  "created_at": 1745933480,
  "kind": 6312,
  "tags": [
    [
      "e",
      "56729c03239d0d80d0641caa4561c55a061cd2f30f1fe017efe712b37e8fcb0c"
    ],
    [
      "p",
      "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
    ],
    [
      "sort",
      "globalPagerank"
    ],
    [
      "nodes",
      "317328"
    ]
  ],
  "content":"[{\"pubkey\":\"726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11\",\"rank\":0.00018008434745346786,\"follows\":550,\"followers\":2102},{\"pubkey\":\"32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245\",\"rank\":0.0038190735362639222},{\"pubkey\":\"04c915daefee38317fa734444acee390a8269fe5810b2241e5e6dd343dfbecc9\",\"rank\":0.0023781006037430445},{\"pubkey\":\"3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d\",\"rank\":0.0020976712437000707},{\"pubkey\":\"472f440f29ef996e92a186b8d320ff180c855903882e59d50de1b8bd5669301e\",\"rank\":0.0014937791227049887},{\"pubkey\":\"3f770d65d3a764a9c5cb503ae123e62ec7598ad035d836e2a810f3877a745b24\",\"rank\":0.0014543235565134729}]",
  "sig":"a16fbad8d49768fe8c764b12221bf823f2095d333ac25bc7d8766b6dc42c26f3ce5e365843ca9fbb36eb38fc2b277b4e33ce683610c199f23f7b90c462577f91"
}

Formatted content JSON:

[
  	{
		"pubkey": "726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11",
		"rank": 0.00018008434745346786,
        "follows": 550,
        "followers": 2102
	},
	{
		"pubkey": "32e1827635450ebb3c5a7d12c1f8e7b2b514439ac10a67eef3d9fd9c5c68e245",
		"rank": 0.0038190735362639222
	},
	{
		"pubkey": "04c915daefee38317fa734444acee390a8269fe5810b2241e5e6dd343dfbecc9",
		"rank": 0.0023781006037430445
	},
	{
		"pubkey": "3bf0c63fcb93463407af97a5e5ee64fa883d107ef9e558472c4eb9aaaefa459d",
		"rank": 0.0020976712437000707
	},
	{
		"pubkey": "472f440f29ef996e92a186b8d320ff180c855903882e59d50de1b8bd5669301e",
		"rank": 0.0014937791227049887
	},
	{
		"pubkey": "3f770d65d3a764a9c5cb503ae123e62ec7598ad035d836e2a810f3877a745b24",
		"rank": 0.0014543235565134729
	},
]

Example error response 

{
  "kind": 7000,
  "id": "96f6eec0b3e410db91b85bee714740ec76ec64a9eb60a5503fee4dfc02047c1a",
  "pubkey": "5fc48ac4765ff81e9c51014b9d2f2c91621370f4c6b5452a9c06456e4cccaeb4",
  "created_at": 1738635799,
  "tags": [
      [
        "e",
        "1cd2c73f53e602ae6f081997962bd43c730a565053080ab27ef7efb7335f7f49"
      ],
      [
        "p",
        "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
      ],
      [
        "status",
        "error",
        "badly formatted key: npub1"
      ],
  ],
  "content": "",
  "sig": "6318c7ce6c57dd85779faadc4fed7733a1e50bd46205d52c96e535648dd2dd07e573e8d1fdef496d27014c80d1f2f604cb5337744d24000c00dde485ccdcf48c"
}
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