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README.md

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+---
+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).**

all_known_species_index_25k_train.jsonl

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