diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/470000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/470000.json
new file mode 100644
index 0000000..4121ea4
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/470000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "470000",
+	"hash": "000016f55342090f2f7dd1013c1780daea3e18331b9e481e44cc969e42267c9a",
+	"time": 1685329692,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/480000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/480000.json
new file mode 100644
index 0000000..f612c27
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/480000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "480000",
+	"hash": "00004fcf6a8c13044beef7a176c1b872bbec53cc00aee74a4cbc9f7cb332ad29",
+	"time": 1685689694,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/490000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/490000.json
new file mode 100644
index 0000000..768190f
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/490000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "490000",
+	"hash": "000021e70faa40c6b1cd9ed3f91b8ad43e2570a00e34c54c5ed74218ac33bf72",
+	"time": 1686049658,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/500000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/500000.json
new file mode 100644
index 0000000..accdd9b
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/500000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "500000",
+	"hash": "000038889c413584ecab16aaf0ae8f050fec136484416084187a2fa27ed1efc4",
+	"time": 1686410001,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/510000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/510000.json
new file mode 100644
index 0000000..9b46cf0
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/510000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "510000",
+	"hash": "000045c957443966535795a08bc5feffee0f0c59b55d7ba727593dbc459a1c34",
+	"time": 1686770355,
+	"saplingTree": "01e80024eecea4f447023db3d6d5e1d32faa7cf14b98cc6f3ab7b8d83cb7527a67019b8ae283f952d4a61bab804fcf18a3e61c2c921d738dd1d9e6c77f56f6a08c060f000001f68d963a781e0f6e382adcebab544556f889f6329af7427b232545667ebaf85c0001baf909aa71d1c86796f553b640ea82151517b29a2f0841394591c73fb34dd13800000000000000000155b7e4710e19681f04c7aa34741e8e8e21f4d2b9be4688378c965f6275594a0f01b4860c8b019af1565d84f5d9ed58a549b04f31d111a49037370311946f35dd20"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/520000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/520000.json
new file mode 100644
index 0000000..ebb6f08
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/520000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "520000",
+	"hash": "000065949a8cd500872a3961e2d5736fee4f84ddb909c1f34969223b0f896fc0",
+	"time": 1687130500,
+	"saplingTree": "01595404d486dd5512a338ee58c0841403d0645c9fb8a6e3fd6f96c63f013dec1b000f0001b90a66f8036230aa954a12954359697c682ef23fe4e8c46b30c016b14fc1f84a0000017b454eb6f9a6d6d2850a1a3a781c21d2f2782d913c48601b429916eac70010430001fa307e8543a1ca593f82a0d7952b2baa0e9c48d2d03406d3a053c7665a1f9b5401ccfa9090a0373783b5c19b89c962a80a2557f699b9a591e032245baa9b382e0d00000000000155b7e4710e19681f04c7aa34741e8e8e21f4d2b9be4688378c965f6275594a0f01b4860c8b019af1565d84f5d9ed58a549b04f31d111a49037370311946f35dd20"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/530000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/530000.json
new file mode 100644
index 0000000..5b7e1ec
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/530000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "530000",
+	"hash": "00001b24c718558a4c4e08ea1605fc5851706f39b163d2b90e6f89d3bb633330",
+	"time": 1687490563,
+	"saplingTree": "0148b948176d92107194d005a95f9b228288b67646d54ae0138ba607954b9198650182fbaa2b7b4cc3aeb7e51c059687ed42bd619b2c48c974bff44fc98121932d310f0000000001d779625e9bd58d138c358d0e5230851fe04c25d9e398eedbcbe27bf31a260b0d01ec97f5e603cccba4cf4ab9f69fff04fb0d257be3eb30ffd57fdd647c1b713839000000015cbb27d57dfa29ee789f2d77458d8689220ad9106d200a595bd0be7dc2e390270000000155b7e4710e19681f04c7aa34741e8e8e21f4d2b9be4688378c965f6275594a0f01b4860c8b019af1565d84f5d9ed58a549b04f31d111a49037370311946f35dd20"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/540000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/540000.json
new file mode 100644
index 0000000..f463cbc
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/540000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "540000",
+	"hash": "00000b8dbe1fe69be0c9da5dc22153a6de62d31971e11b991fd69485a81ecccb",
+	"time": 1687850664,
+	"saplingTree": "0181c70ddb80424c7e8e428286e12c50337a438a3031b5370a86cc493b0efa5806000f015978c2dcec4216057eb9815c1312d86e0a8906411069dab9e5139e523ac345090001be48404f3d0d8ffc07a51b4e32ab55faba0addd3773694fca57ffa0fc9ab3c2801ad93c58bd3967078323880b20b1db320c39aeeed89118733f4542dd03add7a2e0000000140b4791f57c2ea2d7725abb19f77369df1b6aab2eebda86166841ad8722d4c1500015cbb27d57dfa29ee789f2d77458d8689220ad9106d200a595bd0be7dc2e390270000000155b7e4710e19681f04c7aa34741e8e8e21f4d2b9be4688378c965f6275594a0f01b4860c8b019af1565d84f5d9ed58a549b04f31d111a49037370311946f35dd20"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/550000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/550000.json
new file mode 100644
index 0000000..09f3b80
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/550000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "550000",
+	"hash": "000029c2f399d04f9bda73c132727d12a5c101f20afd7d7d020d5abe8f35d2df",
+	"time": 1688210940,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/560000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/560000.json
new file mode 100644
index 0000000..49302a1
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/560000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "560000",
+	"hash": "0000437b6d663bf1bd44299280d96559c7fceee80dd15909bb430f04169e75e1",
+	"time": 1688571017,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/570000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/570000.json
new file mode 100644
index 0000000..2ed4dac
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/570000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "570000",
+	"hash": "000070c8008bcf3c2edeb60484503d4f38a6c1790e7a253173edd2fbb3200e8c",
+	"time": 1688930967,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/580000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/580000.json
new file mode 100644
index 0000000..ffd72c2
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/580000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "580000",
+	"hash": "0000313f09d83c59644907ca6036f88f82b2bdbbfe5dc91c248a7c9b786dc9fc",
+	"time": 1689291153,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/590000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/590000.json
new file mode 100644
index 0000000..1eafa04
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/590000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "590000",
+	"hash": "00005d849ece31d523ec22768684fe8f06826fac681a5e53515799dde5f3c47e",
+	"time": 1689651446,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/600000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/600000.json
new file mode 100644
index 0000000..e7a71f2
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/600000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "600000",
+	"hash": "0000436ae9e88636c65919c5966f9d34a31dc4b65eeaa11f0da4f0dd1dee9149",
+	"time": 1690011617,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/610000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/610000.json
new file mode 100644
index 0000000..355cd98
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/610000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "610000",
+	"hash": "000034a883b6a81b1532959b63a5365343362982bbf37cadcff99d8e60d8e825",
+	"time": 1690371834,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/620000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/620000.json
new file mode 100644
index 0000000..d9e9dcb
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/620000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "620000",
+	"hash": "000083e3d11d57f10ca889db4f39a5a1ffcfbc779fb147e2d78c003488a56937",
+	"time": 1690732033,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/630000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/630000.json
new file mode 100644
index 0000000..521e4c1
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/630000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "630000",
+	"hash": "00003cae63886df0b0d10fc0915289bce98117b17c1bd5fc4e005f75370c470d",
+	"time": 1691092068,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/640000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/640000.json
new file mode 100644
index 0000000..3e2a740
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/640000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "640000",
+	"hash": "0000266d50614b362c3c45f59a016843277cfe0905db3cdcb15a2accd89b97f6",
+	"time": 1691452199,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/650000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/650000.json
new file mode 100644
index 0000000..e744210
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/650000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "650000",
+	"hash": "000051cb54c7a3308052e8136db2c9615c94bfec0979697f251f20847cce4963",
+	"time": 1691812558,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/660000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/660000.json
new file mode 100644
index 0000000..da6449f
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/660000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "660000",
+	"hash": "000040122c9700917a83fac1ce3790ae0a31d33fb1a9f7327d5d60932c2d61a3",
+	"time": 1692172536,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/670000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/670000.json
new file mode 100644
index 0000000..9b13889
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/670000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "670000",
+	"hash": "00000487b1a11a5d1c671e788d8ec240585b35d43e67f4a157c95d2b874e05e9",
+	"time": 1692532611,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/680000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/680000.json
new file mode 100644
index 0000000..cc181e6
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/680000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "680000",
+	"hash": "000068e3988fb8e32f2aa408d3414cb9da9748da7d8250fae08dc246317ed65d",
+	"time": 1692892968,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/690000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/690000.json
new file mode 100644
index 0000000..63722cd
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/690000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "690000",
+	"hash": "0000084caa9255d78ceef4411cd69d319e78eaf98f5062157944682526eaf889",
+	"time": 1693253103,
+	"saplingTree": "01ec50b70a08dcf9cffeb16385acb9d80e258099e6f1013fbee470f649a98e8e6101b907a9a961b5e94adddc544f7ea4453941f9c013b330fd61f3977447bc1e92610f0001ec01002ec9153ffc1479e0111825ab3c714142e83e4398c5f1794ed574c8a72f0000013b7fe23b36c80a40475f675e5aba57a4495bd3ea85634cef5c1665cfb794c42f01c065a1a1ddfa3d098623b811816fe03764f8e5874bc619213d1db68b37a22a14018a9f5bbd9fdef1f58f193d97e3d8659a0599b044b9dc27b0f72ddaaf4730472100013465ef1afc8ebfaabf29a88aafdf1b1bfed935f421fb5c4592228503dbd2f80601d275e2a9aac9c486b247594afa9130e98d74c36dda1d7ed1628706c11f7e1d10017d79a73d5595b435315d8732f0aed43f5dabc9e906a3dd9a5a71626d9b73dd180001cdc8210e623767bb07ddf67d2c7900b8f6dd71b78f9f39792955579ef4b900240155b7e4710e19681f04c7aa34741e8e8e21f4d2b9be4688378c965f6275594a0f01b4860c8b019af1565d84f5d9ed58a549b04f31d111a49037370311946f35dd20"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/700000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/700000.json
new file mode 100644
index 0000000..c0ff128
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/700000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "700000",
+	"hash": "00008edc47c5bb08fa7e565022caff0de4735bc6b3a50ce6ce50df4ec667700b",
+	"time": 1693613416,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/710000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/710000.json
new file mode 100644
index 0000000..87e82a6
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/710000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "710000",
+	"hash": "000078982d79cfc589556fb27f548885bda5e146b1327bc5bdc0eecbb58c5f46",
+	"time": 1693973337,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/720000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/720000.json
new file mode 100644
index 0000000..d0ff9a2
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/720000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "720000",
+	"hash": "000048a83b4832a27349ebbd2f73414813c495eca71ae7db3db46ab01606ad79",
+	"time": 1694333574,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/730000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/730000.json
new file mode 100644
index 0000000..e01b940
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/730000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "730000",
+	"hash": "0000592ff5248f0fbf7ef9e39e0560f95975803312dc0d7c8de61cb3183c452b",
+	"time": 1694693918,
+	"saplingTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/740000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/740000.json
new file mode 100644
index 0000000..6be239b
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/740000.json
@@ -0,0 +1,7 @@
+{
+	"network": "main",
+	"height": "740000",
+	"hash": "00006901558a74158f7b154635dc1ca20db88135ad4bdf5a27b7110e131a9ad4",
+	"time": 1695053906,
+	"saplingTree": "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"
+}