diff --git a/package-lock.json b/package-lock.json
index 1eef311..5da6d43 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -29,6 +29,24 @@
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@@ -207,6 +225,75 @@
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+      "resolved": "https://registry.npmjs.org/bip66/-/bip66-1.1.5.tgz",
+      "integrity": "sha1-AfqHSHhcpwlV1QESF9GzE5lpyiI=",
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+      "resolved": "https://registry.npmjs.org/bl/-/bl-1.2.2.tgz",
+      "integrity": "sha512-e8tQYnZodmebYDWGH7KMRvtzKXaJHx3BbilrgZCfvyLUYdKpK1t5PSPmpkny/SgiTSCnjfLW7v5rlONXVFkQEA==",
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+        "safe-buffer": "5.1.1"
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+          "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.0.tgz",
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+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
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@@ -236,6 +323,66 @@
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       "integrity": "sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8="
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+      "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
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+      "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
+      "integrity": "sha1-vhYedsNU9veIrkBx9j806MTwpCo=",
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+      "resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.1.0.tgz",
+      "integrity": "sha1-BVFNM78WVtNUDGhPZbEgLpDsowM=",
+      "requires": {
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+      "resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-0.1.1.tgz",
+      "integrity": "sha1-/+H2dVHdBVc33iUzN7/oU9+rGmo="
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+      "resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-0.1.1.tgz",
+      "integrity": "sha512-YgBMBzdRLEfgxJIGu2wrvI2E03tMCFU1p7d1KhB4BOoMN0VxmTFjSyN5JtKt9z8Z9JajMHruI6SE25W96wNv7Q=="
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+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.0.0.tgz",
+      "integrity": "sha512-83apNb8KK0Se60UE1+4Ukbe3HbfELJ6UlI4ldtOGs7So4KD26orJM8hIY9lxdzP+UpItH1Yh/Y8GUvNFWFFRxA=="
+    },
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+      "resolved": "https://registry.npmjs.org/buffer-loader/-/buffer-loader-0.0.1.tgz",
+      "integrity": "sha1-TWd8qS3YiTEIeLAqL7z6txICTPI="
+    },
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+      "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz",
+      "integrity": "sha1-JuYe0UIvtw3ULm42cp7VHYVf6Nk="
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+      "resolved": "https://registry.npmjs.org/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz",
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@@ -248,6 +395,25 @@
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+      "resolved": "https://registry.npmjs.org/cids/-/cids-0.5.3.tgz",
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+        "multicodec": "0.2.6",
+        "multihashes": "0.4.13"
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+      "resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.4.tgz",
+      "integrity": "sha512-Kkht5ye6ZGmwv40uUDZztayT2ThLQGfnj/T71N/XzeZeo3nf8foyW7zGTsPYkEya3m5f3cAypH+qe7YOrM1U2Q==",
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@@ -258,6 +424,17 @@
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       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
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+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
+      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
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@@ -273,6 +450,31 @@
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+      "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.2.0.tgz",
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+        "inherits": "2.0.3",
+        "md5.js": "1.3.4",
+        "ripemd160": "2.0.2",
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+      "resolved": "https://registry.npmjs.org/create-hmac/-/create-hmac-1.1.7.tgz",
+      "integrity": "sha512-MJG9liiZ+ogc4TzUwuvbER1JRdgvUFSB5+VR/g5h82fGaIRWMWddtKBHi7/sVhfjQZ6SehlyhvQYrcYkaUIpLg==",
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+        "inherits": "2.0.3",
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@@ -299,6 +501,35 @@
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+      "integrity": "sha1-ogM8CcyOFY03dI+951B4Mr1s4Sc="
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+      "resolved": "https://registry.npmjs.org/elliptic/-/elliptic-6.4.0.tgz",
+      "integrity": "sha1-ysmvh2LIWDYYcAPI3+GT5eLq5d8=",
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@@ -307,6 +538,14 @@
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@@ -357,6 +596,15 @@
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       "integrity": "sha1-nr23Y1rQmccNzEwqH1AEKI6L2SQ="
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+      "resolved": "https://registry.npmjs.org/evp_bytestokey/-/evp_bytestokey-1.0.3.tgz",
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+      "resolved": "https://registry.npmjs.org/flatmap/-/flatmap-0.0.3.tgz",
+      "integrity": "sha1-Hxik2TgVLUlZZfnJWNkjqy3WabQ="
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@@ -383,6 +636,11 @@
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+      "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
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@@ -432,6 +690,15 @@
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@@ -441,6 +708,16 @@
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@@ -485,6 +762,112 @@
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@@ -688,6 +1357,61 @@
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+      "resolved": "https://registry.npmjs.org/protons/-/protons-1.0.1.tgz",
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+      "integrity": "sha1-CIew/7MK8ypW2+z6csFnInHwexM="
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+      "resolved": "https://registry.npmjs.org/pull-pushable/-/pull-pushable-2.2.0.tgz",
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+      "resolved": "https://registry.npmjs.org/pull-traverse/-/pull-traverse-1.0.3.tgz",
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+      "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
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       "resolved": "https://registry.npmjs.org/read/-/read-1.0.7.tgz",
@@ -736,6 +1460,37 @@
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+      "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-2.0.2.tgz",
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+      "requires": {
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+        "inherits": "2.0.3"
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+    "rsa-pem-to-jwk": {
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+      "resolved": "https://registry.npmjs.org/rsa-pem-to-jwk/-/rsa-pem-to-jwk-1.1.3.tgz",
+      "integrity": "sha1-JF52vbfnI0z+58oDLTG1TDj6uY4=",
+      "requires": {
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+        "rsa-unpack": "0.0.6"
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+    "rsa-unpack": {
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+      "resolved": "https://registry.npmjs.org/rsa-unpack/-/rsa-unpack-0.0.6.tgz",
+      "integrity": "sha1-9Q69VqYoN45jHylxYQJs6atO3bo=",
+      "requires": {
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+    "rsvp": {
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+      "resolved": "https://registry.npmjs.org/rsvp/-/rsvp-4.8.2.tgz",
+      "integrity": "sha512-8CU1Wjxvzt6bt8zln+hCjyieneU9s0LRW+lPRsjyVCY8Vm1kTbK7btBIrCGg6yY9U4undLDm/b1hKEEi1tLypg=="
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@@ -751,6 +1506,21 @@
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       "integrity": "sha1-uwBAvgMEPamgEqLOqfyfhSz8h9Q="
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+    "secp256k1": {
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.5.0.tgz",
+      "integrity": "sha512-e5QIJl8W7Y4tT6LHffVcZAxJjvpgE5Owawv6/XCYPQljE9aP2NFFddQ8OYMKhdLshNu88FfL3qCN3/xYkXGRsA==",
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+        "bip66": "1.1.5",
+        "bn.js": "4.11.8",
+        "create-hash": "1.2.0",
+        "drbg.js": "1.0.1",
+        "elliptic": "6.4.0",
+        "nan": "2.10.0",
+        "safe-buffer": "5.1.1"
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       "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
@@ -767,6 +1537,23 @@
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       "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48="
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+    "sha.js": {
+      "version": "2.4.11",
+      "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
+      "integrity": "sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==",
+      "requires": {
+        "inherits": "2.0.3",
+        "safe-buffer": "5.1.1"
+      }
+    },
+    "signed-varint": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/signed-varint/-/signed-varint-2.0.1.tgz",
+      "integrity": "sha1-UKmYnafJjCxh2tEZvJdHDvhSgSk=",
+      "requires": {
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       "resolved": "https://registry.npmjs.org/slash/-/slash-1.0.0.tgz",
@@ -795,11 +1582,50 @@
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+    "split2": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/split2/-/split2-2.2.0.tgz",
+      "integrity": "sha512-RAb22TG39LhI31MbreBgIuKiIKhVsawfTgEGqKHTK87aG+ul/PB8Sqoi3I7kVdRWiCfrKxK3uo4/YUkpNvhPbw==",
+      "requires": {
+        "through2": "2.0.3"
+      }
+    },
+    "stable": {
+      "version": "0.1.8",
+      "resolved": "https://registry.npmjs.org/stable/-/stable-0.1.8.tgz",
+      "integrity": "sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w=="
+    },
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       "resolved": "https://registry.npmjs.org/stack-trace/-/stack-trace-0.0.10.tgz",
       "integrity": "sha1-VHxws0fo0ytOEI6hoqFZ5f3eGcA="
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+    "stream-http": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/stream-http/-/stream-http-2.8.1.tgz",
+      "integrity": "sha512-cQ0jo17BLca2r0GfRdZKYAGLU6JRoIWxqSOakUMuKOT6MOK7AAlE856L33QuDmAy/eeOrhLee3dZKX0Uadu93A==",
+      "requires": {
+        "builtin-status-codes": "3.0.0",
+        "inherits": "2.0.3",
+        "readable-stream": "2.3.3",
+        "to-arraybuffer": "1.0.1",
+        "xtend": "4.0.1"
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+    "stream-to-pull-stream": {
+      "version": "1.7.2",
+      "resolved": "https://registry.npmjs.org/stream-to-pull-stream/-/stream-to-pull-stream-1.7.2.tgz",
+      "integrity": "sha1-dXYJrhzr0zx0MtSvvjH/eGULnd4=",
+      "requires": {
+        "looper": "3.0.0",
+        "pull-stream": "3.6.7"
+      }
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+    "streamifier": {
+      "version": "0.1.1",
+      "resolved": "https://registry.npmjs.org/streamifier/-/streamifier-0.1.1.tgz",
+      "integrity": "sha1-l+mNj6TRBdYqJpHR3AfoINuN/E8="
+    },
     "string_decoder": {
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       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.3.tgz",
@@ -821,6 +1647,20 @@
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       "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc="
     },
+    "tar-stream": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-1.6.0.tgz",
+      "integrity": "sha512-lh2iAPG/BHNmN6WB9Ybdynk9rEJ5GD/dy4zscHmVlwa1dq2tpE+BH78i5vjYwYVWEaOXGBjzxr89aVACF17Cpw==",
+      "requires": {
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+        "buffer-alloc": "1.1.0",
+        "end-of-stream": "1.4.1",
+        "fs-constants": "1.0.0",
+        "readable-stream": "2.3.3",
+        "to-buffer": "1.1.1",
+        "xtend": "4.0.1"
+      }
+    },
     "through2": {
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       "resolved": "https://registry.npmjs.org/through2/-/through2-2.0.3.tgz",
@@ -830,6 +1670,16 @@
         "xtend": "4.0.1"
       }
     },
+    "to-arraybuffer": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/to-arraybuffer/-/to-arraybuffer-1.0.1.tgz",
+      "integrity": "sha1-fSKbH8xjfkZsoIEYCDanqr/4P0M="
+    },
+    "to-buffer": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
+      "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg=="
+    },
     "to-fast-properties": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-1.0.3.tgz",
@@ -848,6 +1698,16 @@
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       "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM="
     },
+    "tweetnacl": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-1.0.0.tgz",
+      "integrity": "sha1-cT2LgY2kIGh0C/aDhtBHnmb8ins="
+    },
+    "typedarray": {
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+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+      "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
+    },
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       "resolved": "https://registry.npmjs.org/union-value/-/union-value-0.2.4.tgz",
@@ -889,6 +1749,14 @@
       "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
       "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w="
     },
+    "varint": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/varint/-/varint-5.0.0.tgz",
+      "integrity": "sha1-2Ca4n3SQcy+rwMDtaT7Uddyynr8="
+    },
+    "webcrypto-shim": {
+      "version": "github:dignifiedquire/webcrypto-shim#190bc9ec341375df6025b17ae12ddb2428ea49c8"
+    },
     "winston": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/winston/-/winston-2.1.1.tgz",
@@ -920,6 +1788,11 @@
         }
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+    "wordwrap": {
+      "version": "0.0.3",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
+      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+    },
     "wrappy": {
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -934,6 +1807,11 @@
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       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
     }
   }
 }
diff --git a/package.json b/package.json
index c884887..3fc8087 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "node-cron": "^1.2.1",
     "node-fetch": "^1.6.3",
     "prompt": "^1.0.0",
-    "truffle-kredits": "github:67P/truffle-kredits"
+    "kredits-contracts": "3.x"
   },
   "repository": {
     "type": "git",