Documentation
Specifications
Sort Authors DVM

Sort Authors DVM

(Nostr DVM draft PR)

This service sorts a provided list of pubkeys using the specified algorithm.

Example use-cases:

  • Sorting comments under a note
  • Sorting zaps in a zap list
  • Surfacing relevant pubkeys’ content in search results

Kinds

  • Request: 5314
  • Response: 6314
  • Error: 7000

Request parameters

Parameter Type Description Default Value
source string The source pubkeys used for personalized algorithms The pubkey signing the DVM request
target string (required) Author pubkey to sort -
sort string Algorithm used to sort results globalPagerank
limit int Maximum number of results returned in a response 5

Pubkeys can be in either hex or npub format. Only one source can be supplied. Multiple target parameters SHOULD be supplied.

Sorting algorithms

We currently support the following algorithms:

  • globalPagerank: Global Pagerank
  • personalizedPagerank: Personalized Pagerank

If you are unsure about which one to use, read our FAQs

Request

Example nak command 

nak event -k 5314 --tag param="target;726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11" --tag param="target;f683e87035f7ad4f44e0b98cfbd9537e16455a92cd38cefc4cb31db7557f5ef2" --tag param="target;d5ad3d3115d9fa07500b06ccd0b9605d9888a206acba20a1e2e681ec29109387" wss://relay.vertexlab.io

Example request event 

{
  "id": "f15a41eee414a1242a174ed5f7389e7d83933147b3f0dfa70f5a642f074e525c",
  "pubkey": "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798",
  "created_at": 1739562990,
  "kind": 5314,
  "tags": [
    [
      "param",
      "target",
      "726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11",
    ],
    [
      "param",
      "target",
      "f683e87035f7ad4f44e0b98cfbd9537e16455a92cd38cefc4cb31db7557f5ef2",
    ],
    [
      "param",
      "target",
      "d5ad3d3115d9fa07500b06ccd0b9605d9888a206acba20a1e2e681ec29109387",
    ],
  ],
  "content": "",
  "sig": "996e243478504aaec423ddbd17d77ee343dae85b65062edeea1d58306185aa9994d221b08512953a55ea3f1783c4c86d108929371296897e44bebd7d53718f9a"
}

Response

The response is a standard DVM response which includes the corresponding e and p tags. The content field is a JSON-stringified array of objects formatted as:

Properties Types Description
{pubkey, rank} {string, float} Requested target along with its rank

Pubkeys are sorted in decreasing order by their ranks.

Example nak command 

nak req -k 6314 -k 7000 --tag e=f15a41eee414a1242a174ed5f7389e7d83933147b3f0dfa70f5a642f074e525c wss://relay.vertexlab.io

Example response event 

{
  "id": "421d49864f791ba7a39d0ede71ad419571d6bae194d8fddf04e9e4a7b8b4bac3",
  "pubkey": "5fc48ac4765ff81e9c51014b9d2f2c91621370f4c6b5452a9c06456e4cccaeb4",
  "created_at": 1739562990,
  "kind": 6314,
  "tags": [
    [
      "e",
      "f15a41eee414a1242a174ed5f7389e7d83933147b3f0dfa70f5a642f074e525c"
    ],
    [
      "p",
      "79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798"
    ]
  ],
  "content": "[{\"pubkey\":\"726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11\",\"rank\":0.0001607724330728076},{\"pubkey\":\"f683e87035f7ad4f44e0b98cfbd9537e16455a92cd38cefc4cb31db7557f5ef2\",\"rank\":0.00007583312883188345},{\"pubkey\":\"d5ad3d3115d9fa07500b06ccd0b9605d9888a206acba20a1e2e681ec29109387\",\"rank\":0}]",
  "sig": "3bbf45f522e638fe5a2723d97f8db79ae4438407c2b2e8e98bddceb959bc700c9e343fde22e5fc873295c8b9bdb163512daa75ef77b78fea875c2a4ceef4a557"
}

Formatted content JSON:

[
	{
		"pubkey": "726a1e261cc6474674e8285e3951b3bb139be9a773d1acf49dc868db861a1c11",
		"rank": 0.0001607724330728076
	},
	{
		"pubkey": "f683e87035f7ad4f44e0b98cfbd9537e16455a92cd38cefc4cb31db7557f5ef2",
		"rank": 0.00007583312883188345
	},
	{
		"pubkey": "d5ad3d3115d9fa07500b06ccd0b9605d9888a206acba20a1e2e681ec29109387",
		"rank": 0
	},
]
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