diff --git a/tests/tx-decode-3.0.test.ts b/tests/tx-decode-3.0.test.ts
index f6b2bed..3d37e28 100644
--- a/tests/tx-decode-3.0.test.ts
+++ b/tests/tx-decode-3.0.test.ts
@@ -3,6 +3,7 @@ import {
   decodeTransaction,
   PostConditionAuthFlag,
   PostConditionModeID,
+  PrincipalTypeID,
   TenureChangeCause,
   TransactionVersion,
   TxPayloadNakamotoCoinbase,
@@ -48,7 +49,7 @@ test('stacks3.0 - decode tx - tenure change', () => {
   });
 });
 
-test('stacks3.0 - decode tx - nakamoto coinbase - no alt recipient', () => {
+test('stacks3.0 - decode tx - nakamoto coinbase - no alt recipient (mockamoto vector)', () => {
   const tenureChangeTx = '80800000000400b40723ab4d7781cf1b45083aa043ce4563006c6100000000000000010000000000000000000158be820619a4838f74e63099bb113fcf7ee13ef3b2bb56728cd19470f9379f05288d4accc987d8dd85de5101776c2ad000784d118e35deb4f02852540bf6dd5f01020000000008010101010101010101010101010101010101010101010101010101010101010109119054d8cfba5f6aebaac75b0f6671a6917211729fa7bafa35ab0ad68fe243cf4169eb339d8a26ee8e036c8380e3afd63da8aca1f9673d19a59ef00bf13e1ba2e540257d0b471fc591a877a90e04e00b';
   const decoded = decodeTransaction(tenureChangeTx);
   expect(decoded).toEqual({
@@ -87,3 +88,89 @@ test('stacks3.0 - decode tx - nakamoto coinbase - no alt recipient', () => {
   expect(txType).toEqual(TxPayloadTypeID.NakamotoCoinbase);
   expect(payload.recipient).toBeNull();
 });
+
+test('stacks3.0 - decode tx - nakamoto coinbase - no alt recipient (stacks-core vector 1)', () => {
+  const tenureChangeTx = '80800000000400b40723ab4d7781cf1b45083aa043ce4563006c6100000000000000010000000000000000000158be820619a4838f74e63099bb113fcf7ee13ef3b2bb56728cd19470f9379f05288d4accc987d8dd85de5101776c2ad000784d118e35deb4f02852540bf6dd5f010200000000081212121212121212121212121212121212121212121212121212121212121212099275df67a68c8745c0ff97b48201ee6db447f7c93b23ae24cdc2400f52fdb08a1a6ac7ec71bf9c9c76e96ee4675ebff60625af28718501047bfd87b810c2d2139b73c23bd69de66360953a642c2a330a';
+  const decoded = decodeTransaction(tenureChangeTx);
+  expect(decoded).toEqual({
+    "tx_id": "0x3f23c7c7d865e1ff924950bf03b12eecb949c68f024fcad45b6d8e2420fb77cc",
+    "version": TransactionVersion.Testnet,
+    "chain_id": 0x80000000,
+    "auth": {
+      "type_id": PostConditionAuthFlag.Standard,
+      "origin_condition": {
+        "hash_mode": 0,
+        "signer": {
+          "address_version": 26,
+          "address_hash_bytes": "0xb40723ab4d7781cf1b45083aa043ce4563006c61",
+          "address": "ST2T0E8XB9NVR3KRV8M43N823SS2P603CC4Y4DG1V"
+        },
+        "nonce": "1",
+        "tx_fee": "0",
+        "key_encoding": TxPublicKeyEncoding.Compressed,
+        "signature": "0x0158be820619a4838f74e63099bb113fcf7ee13ef3b2bb56728cd19470f9379f05288d4accc987d8dd85de5101776c2ad000784d118e35deb4f02852540bf6dd5f"
+      }
+    },
+    "anchor_mode": AnchorModeID.OnChainOnly,
+    "post_condition_mode": PostConditionModeID.Deny,
+    "post_conditions": [],
+    "post_conditions_buffer": "0x0200000000",
+    "payload": {
+      "type_id": TxPayloadTypeID.NakamotoCoinbase,
+      "payload_buffer": "0x1212121212121212121212121212121212121212121212121212121212121212",
+      "recipient": null,
+      "vrf_proof": "0x9275df67a68c8745c0ff97b48201ee6db447f7c93b23ae24cdc2400f52fdb08a1a6ac7ec71bf9c9c76e96ee4675ebff60625af28718501047bfd87b810c2d2139b73c23bd69de66360953a642c2a330a"
+    }
+  });
+
+  const payload = decoded.payload as TxPayloadNakamotoCoinbase;
+  const txType: TxPayloadTypeID.NakamotoCoinbase = payload.type_id;
+  expect(txType).toEqual(TxPayloadTypeID.NakamotoCoinbase);
+  expect(payload.recipient).toBeNull();
+});
+
+test('stacks3.0 - decode tx - nakamoto coinbase - no alt recipient (stacks-core vector 2)', () => {
+  const tenureChangeTx = '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';
+  const decoded = decodeTransaction(tenureChangeTx);
+  expect(decoded).toEqual({
+    "tx_id": "0x3448d47b2e2ef6db517963e1d8e7534ba84afccac9b2c79c1dcf32b21f56871a",
+    "version": TransactionVersion.Testnet,
+    "chain_id": 0x80000000,
+    "auth": {
+      "type_id": PostConditionAuthFlag.Standard,
+      "origin_condition": {
+        "hash_mode": 0,
+        "signer": {
+          "address_version": 26,
+          "address_hash_bytes": "0xb40723ab4d7781cf1b45083aa043ce4563006c61",
+          "address": "ST2T0E8XB9NVR3KRV8M43N823SS2P603CC4Y4DG1V"
+        },
+        "nonce": "1",
+        "tx_fee": "0",
+        "key_encoding": TxPublicKeyEncoding.Compressed,
+        "signature": "0x0158be820619a4838f74e63099bb113fcf7ee13ef3b2bb56728cd19470f9379f05288d4accc987d8dd85de5101776c2ad000784d118e35deb4f02852540bf6dd5f"
+      }
+    },
+    "anchor_mode": AnchorModeID.OnChainOnly,
+    "post_condition_mode": PostConditionModeID.Deny,
+    "post_conditions": [],
+    "post_conditions_buffer": "0x0200000000",
+    "payload": {
+      "type_id": TxPayloadTypeID.NakamotoCoinbase,
+      "payload_buffer": "0x1212121212121212121212121212121212121212121212121212121212121212",
+      "recipient": {
+        "address": "S13ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZXCFYZCG",
+        "address_hash_bytes": "0xffffffffffffffffffffffffffffffffffffffff",
+        "address_version": 1,
+        "contract_name": "foo-contract",
+        "type_id": PrincipalTypeID.Contract,
+      },
+      "vrf_proof": "0x9275df67a68c8745c0ff97b48201ee6db447f7c93b23ae24cdc2400f52fdb08a1a6ac7ec71bf9c9c76e96ee4675ebff60625af28718501047bfd87b810c2d2139b73c23bd69de66360953a642c2a330a"
+    }
+  });
+
+  const payload = decoded.payload as TxPayloadNakamotoCoinbase;
+  const txType: TxPayloadTypeID.NakamotoCoinbase = payload.type_id;
+  expect(txType).toEqual(TxPayloadTypeID.NakamotoCoinbase);
+  expect(payload.recipient).not.toBeNull();
+});