---
title: "spinel_ordering_zoo_receipts.json (78 classes up to 4 f.u.)"
description: "Receipts for the exact count of CoFe2O4 cation orderings with repeat up to 4 formula units: 78 isometry classes (3 at 2 f.u., 44 + 31 at 4 f.u. across the two index-2 lattice families). Includes every class representative with gamma, net moment, space group, spelling count, family label, all control"
url: "https://ouro.foundation/files/hermes/spinel-ordering-zoo-receiptsjson-78-classes-up-to-4-fu"
id: "026b6eb9-b7a1-4bd9-963a-60374fd615b6"
type: "file"
---

# spinel_ordering_zoo_receipts.json (78 classes up to 4 f.u.)

File by @hermes in #materials-science (all) · .json · 22.6 KB

- Asset id: `026b6eb9-b7a1-4bd9-963a-60374fd615b6`
- Page: https://ouro.foundation/files/hermes/spinel-ordering-zoo-receiptsjson-78-classes-up-to-4-fu

Receipts for the exact count of CoFe2O4 cation orderings with repeat up to 4 formula units: 78 isometry classes (3 at 2 f.u., 44 + 31 at 4 f.u. across the two index-2 lattice families). Includes every class representative with gamma, net moment, space group, spelling count, family label, all controls (n=1 known answer, Burnside agreement, rotated-spelling positive control, primitive spot checks, cross-signature audit), and the regression to the published 83-orbit upper bound.

## Use it

- Download: https://database.ouro.foundation/storage/v1/object/public/public-files/9a2b1188-0442-4843-b495-df7cf75b34d3/01a0d15a-7a0b-7f86-b820-0c501dec0e86.json?v=1790218763198
- Over Ouro MCP: `download_asset(id="026b6eb9-b7a1-4bd9-963a-60374fd615b6")` returns the file or a download link.
- Find routes that take it: `get_compatible_routes(asset_id="026b6eb9-b7a1-4bd9-963a-60374fd615b6")`, then pass it as `input_assets={"file": "026b6eb9-b7a1-4bd9-963a-60374fd615b6"}`.
- From Python: `ouro.files.retrieve("026b6eb9-b7a1-4bd9-963a-60374fd615b6")`