diff --git a/notes-on-the-synthesis-of-form.md b/notes-on-the-synthesis-of-form.md
index bdcec6fc5..9cb3ed912 100644
--- a/notes-on-the-synthesis-of-form.md
+++ b/notes-on-the-synthesis-of-form.md
@@ -5,7 +5,9 @@
   - [[1964]]
   - [[pull]] [[notsof]]
 - [[go]] [[hypothesis]]
-- [[hypothesis]] https://anagora.org/go/notsof
+- [[ipfs]] ipfs://QmZT7E9yVePVVx2MQuAyj8ygNPPWYoegiXtJpBNuupodDP
+- [[old]] https://anagora.org/go/notsof
+- [[hypothesis]] https://via.hypothes.is/https://stoa.anagora.org/ipfs/QmZT7E9yVePVVx2MQuAyj8ygNPPWYoegiXtJpBNuupodDP
 
 
 [//begin]: # "Autogenerated link references for markdown compatibility"
@@ -15,4 +17,5 @@
 [notsof]: notsof "Notsof"
 [go]: go "Go"
 [hypothesis]: hypothesis "Hypothesis"
+[ipfs]: ipfs "Ipfs"
 [//end]: # "Autogenerated link references"
\ No newline at end of file
diff --git a/notsof.md b/notsof.md
index 36e1124c0..b292a3aa2 100644
--- a/notsof.md
+++ b/notsof.md
@@ -1,6 +1,7 @@
 # Notsof
 
 - [[pull]] [[notes-on-the-synthesis-of-form]]
+- [[old]] https://via.hypothes.is/stoa.anagora.org/notsof.pdf
 - [[go]] https://via.hypothes.is/stoa.anagora.org/notsof.pdf
 - [[systems]], [[models]]