---
language: en
license: cc-by-4.0
task_categories:
- text-generation
tags:
- taxonomy
- species
- ncbi
- biodiversity
- withinusai
size_categories:
- 10K<n<100K
pretty_name: WithinUsAI All Known Species Index 25k (NCBI Taxonomy Sample)
dataset_info:
  features:
  - name: prompt
    dtype: dict
  - name: response
    dtype: string
  - name: meta
    dtype: dict
  - name: fact_sources
    dtype: list
  - name: artifacts
    dtype: dict
---

# WithinUsAI/All_Known_Species_Index_25k — Master Scholars Academics (25k)

A **real-species** index dataset sampled from **NCBI Taxonomy** (taxdump) at the **species rank**, formatted for Tiny-Recursive-Model-friendly fine-tuning.

## What this is (and is not)

- This dataset contains **25,000 real species records** sampled from the NCBI taxonomy graph (rank=species).
- It **does not enumerate every described species name** (the full list is far larger and updated continuously).  
  If you want “all known species” as a full index, generate it from the same official NCBI taxdump or other backbones (Catalogue of Life, GBIF, WoRMS). This repo provides the schema and can be scaled.

## Task

Each row asks the model to return a **taxonomy classification JSON** for the given **taxid + scientific name**, with keys among:

`superkingdom, kingdom, phylum, class, order, family, genus, species`

**Output contract:** JSON only.

## Source

Official data backbone:
- NCBI Taxonomy FTP: `taxdump.tar.gz`  
  https://ftp.ncbi.nlm.nih.gov/pub/taxonomy/taxdump.tar.gz

Accessed: `2026-01-04T03:02:03Z`

## Schema

- `prompt.messages[]`: system + user
- `response`: JSON string containing `taxid`, `scientific_name`, and `classification`
- `meta`: ids, task, ranks, tags
- `fact_sources`: official anchor
- `artifacts`: output contract and token hints

## Example

```json
{
  "prompt": {
    "messages": [
      {"role": "system", "content": "You are WithinUsAI Master Scholars Taxonomy Indexer. Output must be valid JSON only, no extra text."},
      {"role": "user", "content": "NCBI Taxonomy species indexing task..."}
    ]
  },
  "response": "{\"taxid\": 9606, \"scientific_name\": \"Homo sapiens\", \"classification\": {\"superkingdom\": \"Eukaryota\", \"kingdom\": \"Metazoa\", \"phylum\": \"Chordata\", \"class\": \"Mammalia\", \"order\": \"Primates\", \"family\": \"Hominidae\", \"genus\": \"Homo\", \"species\": \"Homo sapiens\"}}",
  "meta": {
    "id": "WUA_ALL_SPECIES_25K_000001",
    "domain": "all_known_species_index",
    "subdomain": "ncbi_taxonomy::species",
    "task": "taxonomy_indexing",
    "truth_mode": "verifiable_from_ncbi_taxdump",
    "wrapper": "json_only",
    "created_utc": "2026-01-04T03:02:03Z",
    "license": "cc-by-4.0"
  }
}
```

## Citation

If you use this dataset in research or releases, cite it as:
**Within Us AI — WithinUsAI/All_Known_Species_Index_25k (NCBI Taxonomy Sample).**