diff --git a/NNPDF_POS_ANTI_CHARM_Q2_10000/metadata.txt b/NNPDF_POS_ANTI_CHARM_Q2_10000/metadata.txt
new file mode 100644
index 00000000..de8c15ef
--- /dev/null
+++ b/NNPDF_POS_ANTI_CHARM_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Anti-Charm-quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
\ No newline at end of file
diff --git a/NNPDF_POS_ANTI_CHARM_Q2_10000/positivity.yaml b/NNPDF_POS_ANTI_CHARM_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..8a5ef573
--- /dev/null
+++ b/NNPDF_POS_ANTI_CHARM_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: -4
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_ANTI_DOWN_40/positivity.yaml b/NNPDF_POS_ANTI_DOWN_40/positivity.yaml
index 9cab05d8..1e87ce72 100644
--- a/NNPDF_POS_ANTI_DOWN_40/positivity.yaml
+++ b/NNPDF_POS_ANTI_DOWN_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: -1
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_ANTI_DOWN_Q2_10000/metadata.txt b/NNPDF_POS_ANTI_DOWN_Q2_10000/metadata.txt
new file mode 100644
index 00000000..d2058577
--- /dev/null
+++ b/NNPDF_POS_ANTI_DOWN_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Anti-down quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_ANTI_DOWN_Q2_10000/positivity.yaml b/NNPDF_POS_ANTI_DOWN_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..6948a25c
--- /dev/null
+++ b/NNPDF_POS_ANTI_DOWN_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: -1
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_ANTI_STRANGE_40/positivity.yaml b/NNPDF_POS_ANTI_STRANGE_40/positivity.yaml
index b43cdd24..b152bb55 100644
--- a/NNPDF_POS_ANTI_STRANGE_40/positivity.yaml
+++ b/NNPDF_POS_ANTI_STRANGE_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: -3
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_ANTI_STRANGE_Q2_10000/metadata.txt b/NNPDF_POS_ANTI_STRANGE_Q2_10000/metadata.txt
new file mode 100644
index 00000000..f6fd0349
--- /dev/null
+++ b/NNPDF_POS_ANTI_STRANGE_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Anti-strange quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_ANTI_STRANGE_Q2_10000/positivity.yaml b/NNPDF_POS_ANTI_STRANGE_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..5c66e4b9
--- /dev/null
+++ b/NNPDF_POS_ANTI_STRANGE_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: -3
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_ANTI_UP_40/positivity.yaml b/NNPDF_POS_ANTI_UP_40/positivity.yaml
index afd7be39..de7e72bb 100644
--- a/NNPDF_POS_ANTI_UP_40/positivity.yaml
+++ b/NNPDF_POS_ANTI_UP_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: -2
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_ANTI_UP_Q2_10000/metadata.txt b/NNPDF_POS_ANTI_UP_Q2_10000/metadata.txt
new file mode 100644
index 00000000..b30bff90
--- /dev/null
+++ b/NNPDF_POS_ANTI_UP_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Anti-up quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_ANTI_UP_Q2_10000/positivity.yaml b/NNPDF_POS_ANTI_UP_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..e578bd2e
--- /dev/null
+++ b/NNPDF_POS_ANTI_UP_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: -2
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_CHARM_Q2_10000/metadata.txt b/NNPDF_POS_CHARM_Q2_10000/metadata.txt
new file mode 100644
index 00000000..68d51c39
--- /dev/null
+++ b/NNPDF_POS_CHARM_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Charm-quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
\ No newline at end of file
diff --git a/NNPDF_POS_CHARM_Q2_10000/positivity.yaml b/NNPDF_POS_CHARM_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..74f245c7
--- /dev/null
+++ b/NNPDF_POS_CHARM_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: 4
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_DOWN_40/positivity.yaml b/NNPDF_POS_DOWN_40/positivity.yaml
index 3d8901c7..0815ae81 100644
--- a/NNPDF_POS_DOWN_40/positivity.yaml
+++ b/NNPDF_POS_DOWN_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: 1
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_DOWN_Q2_10000/metadata.txt b/NNPDF_POS_DOWN_Q2_10000/metadata.txt
new file mode 100644
index 00000000..173d291e
--- /dev/null
+++ b/NNPDF_POS_DOWN_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Down quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_DOWN_Q2_10000/positivity.yaml b/NNPDF_POS_DOWN_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..7e5e28db
--- /dev/null
+++ b/NNPDF_POS_DOWN_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: 1
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_GLUON_40/positivity.yaml b/NNPDF_POS_GLUON_40/positivity.yaml
index e2316324..f9584e57 100644
--- a/NNPDF_POS_GLUON_40/positivity.yaml
+++ b/NNPDF_POS_GLUON_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: 21
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_GLUON_Q2_10000/metadata.txt b/NNPDF_POS_GLUON_Q2_10000/metadata.txt
new file mode 100644
index 00000000..49a0dc72
--- /dev/null
+++ b/NNPDF_POS_GLUON_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Gluon positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_GLUON_Q2_10000/positivity.yaml b/NNPDF_POS_GLUON_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..47fb776f
--- /dev/null
+++ b/NNPDF_POS_GLUON_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: 21
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_STRANGE_40/positivity.yaml b/NNPDF_POS_STRANGE_40/positivity.yaml
index d42357a8..070d6453 100644
--- a/NNPDF_POS_STRANGE_40/positivity.yaml
+++ b/NNPDF_POS_STRANGE_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: 3
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_STRANGE_Q2_10000/metadata.txt b/NNPDF_POS_STRANGE_Q2_10000/metadata.txt
new file mode 100644
index 00000000..8128fd74
--- /dev/null
+++ b/NNPDF_POS_STRANGE_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Strange quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_STRANGE_Q2_10000/positivity.yaml b/NNPDF_POS_STRANGE_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..fcfa7619
--- /dev/null
+++ b/NNPDF_POS_STRANGE_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: 3
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file
diff --git a/NNPDF_POS_UP_40/positivity.yaml b/NNPDF_POS_UP_40/positivity.yaml
index e5646a9e..4ba8fc5b 100644
--- a/NNPDF_POS_UP_40/positivity.yaml
+++ b/NNPDF_POS_UP_40/positivity.yaml
@@ -2,6 +2,7 @@ hadron_pid: 2212
 lepton_pid: 11
 pid: 2
 q2: 5.0
+convolution_type: 'UnpolPDF'
 xgrid:
   - 4.9999999999999998e-07
   - 1.9407667236782136e-06
diff --git a/NNPDF_POS_UP_Q2_10000/metadata.txt b/NNPDF_POS_UP_Q2_10000/metadata.txt
new file mode 100644
index 00000000..64bdc173
--- /dev/null
+++ b/NNPDF_POS_UP_Q2_10000/metadata.txt
@@ -0,0 +1,10 @@
+description=Up-quark positivity
+x1_label=Q2
+x1_label_tex=$Q^2$
+x1_unit=GeV^2
+x2_label=x
+x2_label_tex=$x$
+x2_unit=
+y_label=xfx
+y_label_tex=$xf(x)$
+y_unit=
diff --git a/NNPDF_POS_UP_Q2_10000/positivity.yaml b/NNPDF_POS_UP_Q2_10000/positivity.yaml
new file mode 100644
index 00000000..c7ed2c9f
--- /dev/null
+++ b/NNPDF_POS_UP_Q2_10000/positivity.yaml
@@ -0,0 +1,26 @@
+hadron_pid: 2212
+lepton_pid: 11
+pid: 2
+q2: 10000.0
+convolution_type: 'UnpolPDF'
+xgrid:
+  - 0.01
+  - 0.0129155
+  - 0.01668101
+  - 0.02154435
+  - 0.02782559
+  - 0.03593814
+  - 0.04641589
+  - 0.05994843
+  - 0.07742637
+  - 0.1
+  - 1.7999999999999999e-01
+  - 2.6000000000000001e-01
+  - 3.3999999999999997e-01
+  - 4.2000000000000004e-01
+  - 5.0000000000000000e-01
+  - 5.7999999999999996e-01
+  - 6.6000000000000003e-01
+  - 7.3999999999999999e-01
+  - 8.1999999999999995e-01
+  - 9.0000000000000002e-01
\ No newline at end of file