From 04edfbd807cc1c56d4f40b5dae75107e7fd8804a Mon Sep 17 00:00:00 2001
From: Julian Cimoca <82905708+Jujified@users.noreply.github.com>
Date: Mon, 19 Oct 2026 00:20:02 +0000
Subject: [PATCH] Add the Zenodo DOI to the citation and README

---
 CITATION.cff | 9 ++++-----
 README.md    | 9 +++++++--
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/CITATION.cff b/CITATION.cff
index 4738c70..6e3f11e 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -6,11 +6,8 @@
 # Zenodo also reads this file when it archives a GitHub release, so the authors,
 # ORCID, title and licence here become the metadata of the minted DOI.
 #
-# One field is deliberately absent:
-#
-#   doi              None minted yet. Zenodo mints one per release; add the
-#                    concept DOI (the one that always resolves to the latest
-#                    version) once the first release exists.
+# `doi` is the Zenodo DOI for OpenChip. Each GitHub release is archived on
+# Zenodo under it.
 
 cff-version: 1.2.0
 message: >-
@@ -40,6 +37,8 @@ license: MIT
 
 version: 1.0.0
 
+doi: 10.5281/zenodo.23461557
+
 url: "https://openchip.tech"
 
 repository-code: "https://github.com/Jujified/OpenChip"
diff --git a/README.md b/README.md
index 16c6474..69e8b15 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # OpenChip
 
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.23461557.svg)](https://doi.org/10.5281/zenodo.23461557)
+
 **Design microfluidic chips in your browser and print them on a desktop resin printer.**
 
 Draw a channel network, size every channel, add standard fittings, check it
@@ -97,8 +99,10 @@ anything clinical.
 ## Citing OpenChip
 
 If OpenChip designed a device that appears in your work, please cite the
-software and the version you used. GitHub's **Cite this repository** button
-gives the details from [`CITATION.cff`](CITATION.cff).
+software and the version you used. The DOI is
+[10.5281/zenodo.23461557](https://doi.org/10.5281/zenodo.23461557), and GitHub's
+**Cite this repository** button gives the details from
+[`CITATION.cff`](CITATION.cff).
 
 ```bibtex
 @software{openchip,
@@ -106,6 +110,7 @@ gives the details from [`CITATION.cff`](CITATION.cff).
   author  = {Cimoca, Julian},
   year    = {2026},
   version = {1.0.0},
+  doi     = {10.5281/zenodo.23461557},
   url     = {https://openchip.tech}
 }
 ```