Add Koto (#358)

* add Koto

* Add testfile

lib/coins.py

@@ -913,6 +913,22 @@ class Zclassic(EquihashMixin, Coin):
     RPC_PORT = 8023
     REORG_LIMIT = 800
 
+class Koto(Coin):
+    NAME = "Koto"
+    SHORTNAME = "KOTO"
+    NET = "mainnet"
+    P2PKH_VERBYTE = bytes.fromhex("1836")
+    P2SH_VERBYTES = [bytes.fromhex("183B")]
+    WIF_BYTE = bytes.fromhex("80")
+    GENESIS_HASH = ('6d424c350729ae633275d51dc3496e16'
+                    'cd1b1d195c164da00f39c499a2e9959e')
+    DESERIALIZER = lib_tx.DeserializerZcash
+    TX_COUNT = 158914
+    TX_COUNT_HEIGHT = 67574
+    TX_PER_BLOCK = 3
+    RPC_PORT = 8432
+    REORG_LIMIT = 800
+
 class Komodo(KomodoMixin, EquihashMixin, Coin):
     NAME = "Komodo"
     SHORTNAME = "KMD"

tests/blocks/koto_mainnet_60000.json

@@ -0,0 +1,14 @@
+{
+    "hash": "09553d8cb7eabfa0a18b255d3342f171677602ace60b9be194dc562fbfa1ec32",
+    "size": 232,
+    "height": 60000,
+    "merkleroot": "7305c96169dc67141657d167541c50c253259d6b1150b468cbbd1a9f636e09db",
+    "tx": [
+	"7305c96169dc67141657d167541c50c253259d6b1150b468cbbd1a9f636e09db"
+    ],
+    "time": 1516755328,
+    "nonce": 2806579424,
+    "bits": "1d0fe10c",
+    "previousblockhash": "66e4d540023f71e52e7e2fb68e1a2757ca6eeccb9d1b69ed5e8689d425a2b2eb",
+    "block": "04000000ebb2a225d489865eed691b9dcbec6eca57271a8eb62f7e2ee5713f0240d5e466db096e639f1abdcb68b450116b9d2553c2501c5467d157161467dc6961c9057380d9675a0ce10f1de00049a70101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff200360ea000480d9675a087ffffe52000000000d2f6e6f64655374726174756d2fffffffff020003164e020000001976a914a4e47780f16cb0f4617946417edaa60a0077857388ac00e1f505000000001976a91452d162b995a7da28fc9c3512857f80d82e9a3b3488ac00000000"
+}