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index 78d6829a42c21d0ed3dd7ea118eebe3bcaaa2c8a..45b3c643ab6feaa92d196908dc5c47270f0634d8 100644
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 sessions/session_20260921_233045_819927/preprocessing/chain-prior-m18-lowcurvature-v1/native/rerun/appearance_spline_prior.rrd filter=lfs diff=lfs merge=lfs -text
 sessions/session_20260921_233045_819927/preprocessing/chain-prior-stronger-reprojection-v2/native/rerun/appearance_spline_prior.rrd filter=lfs diff=lfs merge=lfs -text
+sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/rerun/appearance_spline_prior.rrd filter=lfs diff=lfs merge=lfs -text
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diff --git a/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/hybrid.json b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/hybrid.json
new file mode 100644
index 0000000000000000000000000000000000000000..c8f564b8bef1e190055dcefa304ec68319b23c72
--- /dev/null
+++ b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/hybrid.json
@@ -0,0 +1,24 @@
+{
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+      "total": 77093,
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diff --git a/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/review.json b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/review.json
new file mode 100644
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--- /dev/null
+++ b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/review.json
@@ -0,0 +1,65 @@
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diff --git a/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/tube.json b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/tube.json
new file mode 100644
index 0000000000000000000000000000000000000000..5222271001fd007b1a327146e03be8b4ac4e63b2
--- /dev/null
+++ b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/steps/tube.json
@@ -0,0 +1,63 @@
+{
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+  "settings": {
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\ No newline at end of file
diff --git a/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/tube/geometry.npz b/sessions/session_20260921_233045_819927/preprocessing/chain-prior-v1/native/tube/geometry.npz
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