diff --git a/example/test_problem/ELBDM/DiskHeating/download_ic.sh b/example/test_problem/ELBDM/DiskHeating/download_ic.sh
index 077cfd9760..fe24da5b58 100644
--- a/example/test_problem/ELBDM/DiskHeating/download_ic.sh
+++ b/example/test_problem/ELBDM/DiskHeating/download_ic.sh
@@ -1,9 +1,17 @@
-filename=disk-heating-ic
+#!/bin/bash
 
-curl https://girder.hub.yt/api/v1/item/6645cffcff473673ea91b24d/download -o ${filename}.tgz
-tar -zxvf ${filename}.tgz
-rm ${filename}.tgz
-ln -s ${filename}/UM_IC_0.4_M7 UM_IC
-ln -s ${filename}/PAR_IC_0.4_M7_low_res DiskHeatingParticleIC
+LOCAL_FILENAME="disk-heating-ic"
+FILE_ID="677dd2d0999605c485c8de8f"
+FILE_SHA256="5c981ffe1f0cd85237b51e9e2872e8047dad8a87e0419575255e4c1d5d8cf17a"
 
+# 1 download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}.tgz"
 
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME}.tgz | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}.tgz"
+
+# 3. unzip and link
+tar -zxvf ${LOCAL_FILENAME}.tgz
+rm ${LOCAL_FILENAME}.tgz
+ln -s ${LOCAL_FILENAME}/UM_IC_0.4_M7 UM_IC
+ln -s ${LOCAL_FILENAME}/PAR_IC_0.4_M7_low_res DiskHeatingParticleIC
diff --git a/example/test_problem/ELBDM/HaloMerger/download_ic.sh b/example/test_problem/ELBDM/HaloMerger/download_ic.sh
index bea2af5a30..24b7398f2a 100644
--- a/example/test_problem/ELBDM/HaloMerger/download_ic.sh
+++ b/example/test_problem/ELBDM/HaloMerger/download_ic.sh
@@ -1,8 +1,15 @@
-filename=HALO_IC_m22_1_Mh_4e9
-link=https://girder.hub.yt/api/v1/item/65e5251f1613cd89a1dfe902/download
+#!/bin/bash
 
+LOCAL_FILENAME="HALO_IC_m22_1_Mh_4e9"
+FILE_ID="677cc8db999605c485c8de83"
+FILE_SHA256="acbd85842de65ff2360c7f3a1d1101c6f4f8939f430c3f61b8bc5f6f9a72fe94"
 
-curl ${link} -o ${filename}
+# 1. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}"
 
-ln -s ${filename} HALO_IC_Halo1
-ln -s ${filename} HALO_IC_Halo2
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
+
+# 3. link
+ln -s ${LOCAL_FILENAME} HALO_IC_Halo1
+ln -s ${LOCAL_FILENAME} HALO_IC_Halo2
diff --git a/example/test_problem/ELBDM/IsolatedHalo/download_ic.sh b/example/test_problem/ELBDM/IsolatedHalo/download_ic.sh
index 3ed46f02dd..c417b94e6c 100644
--- a/example/test_problem/ELBDM/IsolatedHalo/download_ic.sh
+++ b/example/test_problem/ELBDM/IsolatedHalo/download_ic.sh
@@ -1,8 +1,16 @@
-filename=UM_IC_run05-halo08-lv4
-link=https://use.yt/upload/d75aa595
+#!/bin/bash
 
-curl -L ${link} -o ${filename}.tgz
-tar -zxvf ${filename}.tgz
-rm ${filename}.tgz
+LOCAL_FILENAME="UM_IC_run05-halo08-lv4"
+FILE_ID="677cbad6999605c485c8de77"
+FILE_SHA256="7ed91ba48a9aec139e0574629b689090ae43496fb957c6822c7ec1bd1217e22e"
 
-ln -s ${filename} UM_IC
+# 1. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}.tgz"
+
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME}.tgz | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}.tgz"
+
+# 3. unzip and link
+tar -zxvf ${LOCAL_FILENAME}.tgz
+rm ${LOCAL_FILENAME}.tgz
+ln -s ${LOCAL_FILENAME} UM_IC
diff --git a/example/test_problem/ELBDM/LSS/download_ic.sh b/example/test_problem/ELBDM/LSS/download_ic.sh
index b27e678417..fa6c23f98d 100644
--- a/example/test_problem/ELBDM/LSS/download_ic.sh
+++ b/example/test_problem/ELBDM/LSS/download_ic.sh
@@ -1,5 +1,14 @@
-filename=Music_InitCondition_z3200_L1.4_N0256_s1002
-link=https://use.yt/upload/4dec54c9
+#!/bin/bash
 
-curl -L ${link} -o ${filename}
-ln -s ${filename} UM_IC
+LOCAL_FILENAME="Music_InitCondition_z3200_L1.4_N0256_s1002"
+FILE_ID="6780d8d6999605c485c8dea0"
+FILE_SHA256="114fd2a0d37e70ba7bd06907c878bd1c752ea76882ad1833af165696eef8cf9d"
+
+# 1. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}"
+
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
+
+# 3. link
+ln -s ${LOCAL_FILENAME} UM_IC
diff --git a/example/test_problem/ELBDM/LSS_Hybrid/download_heavy_halo_ic.sh b/example/test_problem/ELBDM/LSS_Hybrid/download_heavy_halo_ic.sh
index 8d03ee68cf..cdf8f8557f 100644
--- a/example/test_problem/ELBDM/LSS_Hybrid/download_heavy_halo_ic.sh
+++ b/example/test_problem/ELBDM/LSS_Hybrid/download_heavy_halo_ic.sh
@@ -1,7 +1,16 @@
-filename=Music_InitCondition_z99_L2.8_N0256_HeavyHalo
-link=https://use.yt/upload/4587e2e6
+#!/bin/bash
 
-curl -L ${link} -o ${filename}
-ln -sf ${filename} UM_IC_wave_heavy
+LOCAL_FILENAME="Music_InitCondition_z100_L2.8_N0256_HeavyHalo"
+FILE_ID="6780d9d2999605c485c8dea9"
+FILE_SHA256="2f15920763e6189abd81b6f39fd283ebeeb6b6b90dbbce0eb898d098ef4b497d"
+
+# 1. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}"
+
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
+
+# 3. link
+ln -sf ${LOCAL_FILENAME} UM_IC_wave_heavy
 python3 elbdm_wave_to_hybrid_IC.py -input UM_IC_wave_heavy -output UM_IC_hybrid_heavy -resolution 256
 ln -sf UM_IC_hybrid_heavy UM_IC
diff --git a/example/test_problem/ELBDM/LSS_Hybrid/download_light_halo_ic.sh b/example/test_problem/ELBDM/LSS_Hybrid/download_light_halo_ic.sh
index ca91549205..0143dd78d6 100644
--- a/example/test_problem/ELBDM/LSS_Hybrid/download_light_halo_ic.sh
+++ b/example/test_problem/ELBDM/LSS_Hybrid/download_light_halo_ic.sh
@@ -1,9 +1,20 @@
-filename=Music_InitCondition_z99_L2.8_N0064_LightHalo
-link=https://use.yt/upload/a67d8dd1
+#!/bin/bash
 
+LOCAL_FILENAME="Music_InitCondition_z100_L2.8_N0064_LightHalo"
+FILE_ID="6780d97e999605c485c8dea6"
+FILE_SHA256="89e1626405e38e3bd756167e3c06719f193456aa8e7d210ddfd13246df0e1a91"
+
+# 1. clean
 rm UM_IC*
-curl -L ${link} -o ${filename}
-python3 elbdm_rescale_periodic_IC.py -input ${filename} -output Music_InitCondition_z99_L2.8_N0256_LightHalo -n_in 64 -n_out 256
-ln -sf Music_InitCondition_z99_L2.8_N0256_LightHalo UM_IC_wave_light
+
+# 2. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}"
+
+# 3. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
+
+# 4. link
+python3 elbdm_rescale_periodic_IC.py -input ${LOCAL_FILENAME} -output Music_InitCondition_z100_L2.8_N0256_LightHalo -n_in 64 -n_out 256
+ln -sf Music_InitCondition_z100_L2.8_N0256_LightHalo UM_IC_wave_light
 python3 elbdm_wave_to_hybrid_IC.py -input UM_IC_wave_light -output UM_IC_hybrid_light -resolution 256
 ln -sf UM_IC_hybrid_light UM_IC
diff --git a/example/test_problem/ELBDM/LSS_Hybrid/download_spectral_interpolation_tables.sh b/example/test_problem/ELBDM/LSS_Hybrid/download_spectral_interpolation_tables.sh
index 211c7a4470..cc4b930d41 100644
--- a/example/test_problem/ELBDM/LSS_Hybrid/download_spectral_interpolation_tables.sh
+++ b/example/test_problem/ELBDM/LSS_Hybrid/download_spectral_interpolation_tables.sh
@@ -1,6 +1,18 @@
-filename=spectral_tables.zip
-link=https://use.yt/upload/66f39405
+#!/bin/bash
 
+LOCAL_FILENAME="spectral_tables.zip"
+FILE_ID="6780d950999605c485c8dea3"
+FILE_SHA256="304fb4d098d6ad6f6533f137fc78a4d05d2abf7c239392be29f694503410247f"
+
+# 1. clean
 rm -r spectral_tables*
-curl -L ${link} -o ${filename}
-unzip ${filename}
+
+# 2. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}"
+
+# 3. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
+
+# 4. unzip
+unzip ${LOCAL_FILENAME}
+rm ${LOCAL_FILENAME}
diff --git a/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_high_res.sh b/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_high_res.sh
index 7aae3cb6cd..ef34aa20d1 100644
--- a/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_high_res.sh
+++ b/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_high_res.sh
@@ -3,11 +3,18 @@ LOCAL_FILENAME1="HI"
 LOCAL_FILENAME2="CloudyData_UVB=HM2012.h5"
 FILE_ID1="677e4757999605c485c8de92"
 FILE_ID2="677ca211999605c485c8de6c"
+FILE_SHA256_1="8ab54870656585b280b3085c6aa8d9e62f6969ba05123fc25c9a7549bcdd32a2"
+FILE_SHA256_2="8715f1b39e90a7296ec2adcd442fa13a3d45d2ad021c6fa2fae9e4ab7a4700b2"
+
 
 # file download
 curl https://hub.yt/api/v1/item/${FILE_ID1}/download -o "${LOCAL_FILENAME1}.tar.gz"
 curl https://hub.yt/api/v1/item/${FILE_ID2}/download -o "${LOCAL_FILENAME2}"
 
+# compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME1}.tar.gz | awk '{print $1}'` = "${FILE_SHA256_1}" ] && echo "File broken: ${LOCAL_FILENAME1}.tar.gz"
+! [ `sha256sum ${LOCAL_FILENAME2}        | awk '{print $1}'` = "${FILE_SHA256_2}" ] && echo "File broken: ${LOCAL_FILENAME2}"
+
 # file unzip
 tar xzvf ${LOCAL_FILENAME1}.tar.gz
 mv ${LOCAL_FILENAME1}/* ./
@@ -15,7 +22,7 @@ rm -rf ${LOCAL_FILENAME1}
 rm ${LOCAL_FILENAME1}.tar.gz
 
 # Input_* soft links
-ln -s ./Input_Options/Input__Flag_Jeans.high-res Input__Flag_Jeans
-ln -s ./Input_Options/Input__Flag_ParMassCell.high-res Input__Flag_ParMassCell
-ln -s ./Input_Options/Input__Flag_Rho.high-res Input__Flag_Rho
-ln -s ./Input_Options/Input__Parameter.high-res Input__Parameter
+ln -fs ./Input_Options/Input__Flag_Jeans.high-res Input__Flag_Jeans
+ln -fs ./Input_Options/Input__Flag_ParMassCell.high-res Input__Flag_ParMassCell
+ln -fs ./Input_Options/Input__Flag_Rho.high-res Input__Flag_Rho
+ln -fs ./Input_Options/Input__Parameter.high-res Input__Parameter
diff --git a/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_low_res.sh b/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_low_res.sh
index 19f9ad0b3d..44d3cc0bd7 100644
--- a/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_low_res.sh
+++ b/example/test_problem/Hydro/AGORA_IsolatedGalaxy/download_ic_low_res.sh
@@ -1,16 +1,28 @@
 #!/bin/bash
+
+LOCAL_FILENAME1="LOW"
+LOCAL_FILENAME2="CloudyData_UVB=HM2012.h5"
+FILE_ID1="677ca225999605c485c8de6f"
+FILE_ID2="677ca211999605c485c8de6c"
+FILE_SHA256_1="8fd18d016f5af665d31d853a394c9089503df225f4c256eb1163c9a7b4e94644"
+FILE_SHA256_2="8715f1b39e90a7296ec2adcd442fa13a3d45d2ad021c6fa2fae9e4ab7a4700b2"
+
 # file download
-wget --no-check-certificate -O ./LOW.tar.gz https://www.dropbox.com/sh/1xzt1rysy9v3a9l/AAAMlJBQG1OQFW4cjhp11Ex6a/LOW.tar.gz?dl=1
-wget --no-check-certificate  -O ./CloudyData_UVB=HM2012.h5 https://github.com/grackle-project/grackle_data_files/raw/main/input/CloudyData_UVB=HM2012.h5
+curl https://hub.yt/api/v1/item/${FILE_ID1}/download -o "${LOCAL_FILENAME1}.tar.gz"
+curl https://hub.yt/api/v1/item/${FILE_ID2}/download -o "${LOCAL_FILENAME2}"
+
+# compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME1}.tar.gz | awk '{print $1}'` = "${FILE_SHA256_1}" ] && echo "File broken: ${LOCAL_FILENAME1}.tar.gz"
+! [ `sha256sum ${LOCAL_FILENAME2}        | awk '{print $1}'` = "${FILE_SHA256_2}" ] && echo "File broken: ${LOCAL_FILENAME2}"
 
 # file unzip
-tar xzvf LOW.tar.gz
-mv LOW/*.dat ./
-rmdir LOW
-rm LOW.tar.gz
+tar xzvf ${LOCAL_FILENAME1}.tar.gz
+mv ${LOCAL_FILENAME1}/*.dat ./
+rmdir ${LOCAL_FILENAME1}
+rm ${LOCAL_FILENAME1}.tar.gz
 
 # Input_* soft links
-ln -s ./Input_Options/Input__Flag_Jeans.low-res Input__Flag_Jeans
-ln -s ./Input_Options/Input__Flag_ParMassCell.low-res Input__Flag_ParMassCell
-ln -s ./Input_Options/Input__Flag_Rho.low-res Input__Flag_Rho
-ln -s ./Input_Options/Input__Parameter.low-res Input__Parameter
+ln -fs ./Input_Options/Input__Flag_Jeans.low-res Input__Flag_Jeans
+ln -fs ./Input_Options/Input__Flag_ParMassCell.low-res Input__Flag_ParMassCell
+ln -fs ./Input_Options/Input__Flag_Rho.low-res Input__Flag_Rho
+ln -fs ./Input_Options/Input__Parameter.low-res Input__Parameter
diff --git a/example/test_problem/Hydro/CDM_LSS/download_ic.sh b/example/test_problem/Hydro/CDM_LSS/download_ic.sh
index ec3a9b39d3..549b3eb456 100644
--- a/example/test_problem/Hydro/CDM_LSS/download_ic.sh
+++ b/example/test_problem/Hydro/CDM_LSS/download_ic.sh
@@ -2,13 +2,10 @@
 
 LOCAL_FILENAME="PAR_IC"
 FILE_ID="677c92db999605c485c8de69"
+FILE_SHA256="46e27324953bcd7b4eecaecd395b6cf6ccbf662e65a12c935b3823abd8119be3"
 
-# 1. Download through `curl`
+# 1. download
 curl https://hub.yt/api/v1/item/${FILE_ID}/download -o ${LOCAL_FILENAME}
 
-# 2. download through `girder`
-API_URL="https://girder.hub.yt/api/v1"
-
-# girder-cli --api-url ${API_URL} download --parent-type item ${FILE_ID} temp
-# mv temp/${LOCAL_FILENAME} ./
-# rmdir temp
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
diff --git a/example/test_problem/Hydro/ClusterMerger/download_ic.sh b/example/test_problem/Hydro/ClusterMerger/download_ic.sh
index a77f72155e..61bc0635d3 100644
--- a/example/test_problem/Hydro/ClusterMerger/download_ic.sh
+++ b/example/test_problem/Hydro/ClusterMerger/download_ic.sh
@@ -1,4 +1,15 @@
-filename=gamer_ic_merging_cluster.tgz
-curl -L https://use.yt/upload/cceea6c4 -o $filename
-tar -zxvf $filename
-rm $filename
+#!/bin/bash
+
+LOCAL_FILENAME="gamer_ic_merging_cluster.tgz"
+FILE_ID="677caaec999605c485c8de74"
+FILE_SHA256="a233a892818504cf15e188bca862e22250bb1f3e09155740e45d272e4ab5f1c1"
+
+# 1. download
+curl https://hub.yt/api/v1/item/${FILE_ID}/download -o "${LOCAL_FILENAME}"
+
+# 2. compare sha256sum
+! [ `sha256sum ${LOCAL_FILENAME} | awk '{print $1}'` = "${FILE_SHA256}" ] && echo "File broken: ${LOCAL_FILENAME}"
+
+# 3. unzip
+tar -zxvf ${LOCAL_FILENAME}
+rm ${LOCAL_FILENAME}