diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2095000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2095000.json
new file mode 100644
index 00000000..43087a9b
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2095000.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2095000",
+  "hash": "0000000001790ab3e6d6ec360d5af7dea78580112b4803252152c0d5b94acbf2",
+  "time": 1684765043,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2097500.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2097500.json
new file mode 100644
index 00000000..68784e0e
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2097500.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2097500",
+  "hash": "000000000017ac57ea5218729dda7061caba09f8d6c64cfffe2dc47b662fa5c6",
+  "time": 1684953946,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2100000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2100000.json
new file mode 100644
index 00000000..19befe9c
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2100000.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2100000",
+  "hash": "0000000001a0310259c41131eb341342d005abd482f63fa346fe385f9e0089f2",
+  "time": 1685142064,
+  "saplingTree": "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",
+  "orchardTree": "01ca48d2c227a0079de605d9f5a10ef196a0db7b49fdbbc11866b1b507d66c2d1b001f00012088b473744da68787273eab8cd5695906be00c0d880ce0aa4e1ab15245bc426011352653f68bb1068b9bd64e7f2610e5a8218dba7e0e5a30ace398706d212881b01423668e4b5a6d514282bc392ea99853dc553f26cd2c662ff4013b711ac2d9131000001d1338519c70d6257a1b661191f029c6df48f442a853df370c8dd8570e2532313016f299b2b95e6fca0c23c36c8e069a6205b8e7880ad50bb0f0fbc6eeb71d297340153e1459eb98a518266283d76e9c5052126f2e8b358a5b2ff5f8547bf47b7f9260001b4698284ab6f79fde7377fd7ea541d422934d52f726efbc0a237dbf4b72a253c01a9f25f3a0ec294037bb9c56b539925835e58a229086bd602e3350e749f03ce3d00000001e2f9822aef9a030f0d2963116f48ead1568fa2fd8b8b849ff68ca63d9ae78f09000114c4410ffbf43d9d16dbb3c65c6c2d58792f6e659ec55b90773486dfba58751901f7b6f7b9502c944ff59f4202125cac701c1e88819c34f31aaf2b6789b047ab040000012dcc4273c8a0ed2337ecf7879380a07e7d427c7f9d82e538002bd1442978402c01daf63debf5b40df902dae98dadc029f281474d190cddecef1b10653248a234150001e2bca6a8d987d668defba89dc082196a922634ed88e065c669e526bb8815ee1b000000000000"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2102500.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2102500.json
new file mode 100644
index 00000000..0e41e5aa
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2102500.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2102500",
+  "hash": "000000000037780d67c190236f36303d46940e2a5a9199ccdd7e320c8f54d5cf",
+  "time": 1685330652,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2105000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2105000.json
new file mode 100644
index 00000000..6b26837a
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2105000.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2105000",
+  "hash": "00000000002d5f610c4c7c2180ff0b704a5889ab7229d4e436163608b992e3f0",
+  "time": 1685518702,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2107500.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2107500.json
new file mode 100644
index 00000000..42208ed2
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2107500.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2107500",
+  "hash": "00000000016485cbb8b9c2a079305a1d1177a27ca4342b6426d89da4702f3863",
+  "time": 1685707435,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2110000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2110000.json
new file mode 100644
index 00000000..57fce027
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2110000.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2110000",
+  "hash": "00000000000d9f259ac71b87c2b88e6a5d5ec450bf883627c912344c4ffcf54c",
+  "time": 1685895640,
+  "saplingTree": "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",
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+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2112500.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2112500.json
new file mode 100644
index 00000000..c4054a4c
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2112500.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2112500",
+  "hash": "0000000001ac14f02bc4e6bd3e9166fc387843af8c5bcebfa80579e99f3891a7",
+  "time": 1686084017,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2115000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2115000.json
new file mode 100644
index 00000000..773948b2
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2115000.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2115000",
+  "hash": "00000000010901b8f8510a409c42e1e5bd4149e49c8965bb924c08f05efc24c5",
+  "time": 1686271925,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2117500.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2117500.json
new file mode 100644
index 00000000..6d8e3ac2
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/mainnet/2117500.json
@@ -0,0 +1,8 @@
+{
+  "network": "main",
+  "height": "2117500",
+  "hash": "000000000023622799c2842e86f742f567abf21273e103f35192e6b17eb7699b",
+  "time": 1686460564,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2360000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2360000.json
new file mode 100644
index 00000000..9265340e
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2360000.json
@@ -0,0 +1,8 @@
+{
+  "network": "test",
+  "height": "2360000",
+  "hash": "0031d12534f35e54170ae9b8fedcd611c48f12a1be093d47bf1226e219beb418",
+  "time": 1685223155,
+  "saplingTree": "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",
+  "orchardTree": "01fcfadfce0c6ee0009e9a572ebc752b6278fbd1fb5a163e9571595c661aa1d328013b0b807f06b62ece1d7a2749dbd102f9b0b38a1a7750213f6f60845d4a36440b1f0001d4196d0ece52aec92dfa82dd00687ba6a5dc28b3ded4bae3f6d2c1e0e447ff3c0186f7204824d2b2a7e4d0b0f2261550a6bd8ca887880dfe0fb3a5b77116c3ac0800000001aa16ebc17ca9b9e0702135e09c20dcde01fdb2340788a1c94e1c180e9e021537019c9b9208f56d5ff25c6da9ac1409b0602c8c0a0e0a3eb8233418de6df92e682c01542f811bbdfc333a127c64b4055a9fbeb8f44a51477b1582e081ba1dadfe9a000000013bf8b923e4187754e85175748d9cce4824a6787e4258977b5bfe1ba59012c032000001f3bbdc62260c4fca5c84bf3487246d4542da48eeeec8ec40c1029b6908eef83c00000000000000000000000000000000"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2370000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2370000.json
new file mode 100644
index 00000000..9d981c76
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2370000.json
@@ -0,0 +1,8 @@
+{
+  "network": "test",
+  "height": "2370000",
+  "hash": "0000b3672c7628008574f5c0c83dd37b49eb45d353d2e578d9f47d188dcfa2c2",
+  "time": 1685913941,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}
diff --git a/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2380000.json b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2380000.json
new file mode 100644
index 00000000..2b4ad838
--- /dev/null
+++ b/sdk-lib/src/main/assets/co.electriccoin.zcash/checkpoint/testnet/2380000.json
@@ -0,0 +1,8 @@
+{
+  "network": "test",
+  "height": "2380000",
+  "hash": "0001cc2c2db186634b6820310aa9f7c5a1779e8027b446c966de2d4df1db119c",
+  "time": 1686553386,
+  "saplingTree": "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",
+  "orchardTree": "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"
+}