diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..042d298bb254cd4b5eeb3277746e3d2d982acb71
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+847e7d6ea18a417496518dc90b547438bf1b3d05.json
diff --git a/README.md b/README.md
index a5e782f7c906059d6d97f3e12ce4d929b75a61b9..ce78327daf147b6dd5310372766b1732be1d5b03 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,12 @@
 # TSA2
 
-Descargar el proyecto:
-```shell
-git clone https://gitlab.bfa.ar/blockchain/tsa2.git
-```
+Actualmente el contrato se encuentra deployado en BFA:
+ * dirección: **0x7e56220069CAaF8367EA42817EA9210296AeC7c6**
+ * abi: https://gitlab.bfa.ar/blockchain/tsa2/blob/develop/api/abi.json
+
+También está deployado en la testnet2:
+ * dirección: **0xFc0f01A88bD08b988173A2354952087C9492d947**
+ * abi: https://gitlab.bfa.ar/blockchain/tsa2/blob/develop/api/abi.json
 
 ## Discusión
 Cosas que habría que discutir:
@@ -12,11 +15,11 @@ Cosas que habría que discutir:
  * vale la pena ponerse a ahorrar gas? Ahora cada put sale ~150000 GAS
 
 ## Dependencias
-Todo fue probado con node 10.8 y npm 6.2.
+**Todo fue probado con node 10.8 y npm 6.2.**
 
 Si se desea hacer modificaciones en el contrato hay que tener instalado truffle 
 de manera global:
-```shell
+```bash
 npm install -g truffle
 ```
 
@@ -28,14 +31,19 @@ El proyecto está compuesto por tres componentes, los contratos, una api rest
 y una interfaz gráfica.
 
 ### Deployar los contratos
+La primera vez hay que ejecutar lo siguiente dentro del directorio ```contract```
+```bash
+npm install
+```
+
 Para manejar los contratos se utilizó truffle, para hacer el deploy de los
 contratos hay que correr dentro del directorio ```contract``` el siguiente comando
-```shell
+```bash
 truffle migrate
 ```
 
 Si se hacen modificaciones sobre el contrato se debe ejecutar lo siguiente:
-```shell
+```bash
 truffle migrate --reset
 ```
 
@@ -44,17 +52,17 @@ en ```contract/contracts/Stamper.sol```.
 
 ### Correr API
 La primera vez hay que ejecutar lo siguiente dentro del directorio ```api```
-```shell
+```bash
 npm install
 ```
 
 Para que la API quede corriendo hay que ejecutar:
-```shell
+```bash
 npm run serve
 ```
 
 Si todo fue bien, se debería ver algo así en la consola:
-```shell
+```bash
 ➜  api git:(master) ✗ npm run serve         
 
 > api@1.0.0 serve /home/ablanco/proyectos/bfa/tsa/api
@@ -89,12 +97,12 @@ La api tiene dos endpoints:
 
 ### UI
 La primera vez hay que ejecutar lo siguiente dentro del directorio ```ui```
-```shell
+```bash
 npm install
 ```
 
 La aplicación está escrita con Vue.js. Para correr el servicio hay que ejecutar:
-```shell
+```bash
 npm run serve
 ```
 ## Instalación en producción
@@ -103,7 +111,7 @@ ya se está listo para correr la API y tirar los assets de UI donde se desee.
 
 ### Compilación de componentes
 Para compilar la UI y la API hay que ejecutar el comando:
-```shell
+```bash
 npm run build
 ```
 dentro de cada uno de los directorios.
@@ -113,19 +121,20 @@ Como output se van a crear los directorios ```ui/dist``` y ```api/dist```
 ### Deploy y configuración de la API
 Para correr la API hay que ejecutar con node el archivo ```dist/index.js```
 
-```shell
+```bash
 node dist/index.js
 ```
 
 Se pueden definir las siguientes variables de entorno para parametrizar el servidor:
  * **GETH_HOST**: url del host geth a conectarse. Por defecto ***http://localhost:7545***
- * **GETH_ACCOUNT**: account a utilizar. Por defecto se utiliza la que está la 
- pos 0 de ```web3.eth.getAccounts()```
+ * **GETH_ACCOUNT_JSON**: Path a la key encriptada (V3) donde se encuentra la account
+ a utilizar. Por defecto se utiliza la que está la pos 0 de ```web3.eth.getAccounts()```
+ * **GETH_ACCOUNT_PASSWORD**: Clave plana de la key provista en ***GETH_ACCOUNT_JSON***
  * **CONTRACT_ABI_PATH**: path al archivo que contiene el abi. Puede ser un path 
  absoluto.
  Si es relativo la ruta se calcula desde el dir api/dist. Por defecto se trata 
  de cargar desde el directorio build de truffle (```contract/build/contracts/Stamper.json```)
- * **CONTRACT_ABI_ADDRESS**: dirección del contrato. Por defecto se utiliza la 
+ * **CONTRACT_ADDRESS**: dirección del contrato. Por defecto se utiliza la 
  que está en el archivo de build de truffle para el netId actual
  * **USE_CORS**: permite des/habilitar el CORS a este server. Por defecto está
  habilitado. Para deshabilitar pasar ***USE_CORS=0***
@@ -142,10 +151,20 @@ Se pueden definir las siguientes variables de entorno para parametrizar el servi
  ```
 
  La otra forma es setearlos al correr node, eg:
- ```shell
+ ```bash
  PORT=8010 USE_CORS=0 node dist/index.js
  ```
 
+ Ejemplo que levanta corriendo contra BFA:
+ ```bash
+GETH_ACCOUNT_JSON=$(pwd)/../../847e7d6ea18a417496518dc90b547438bf1b3d05.json \
+GETH_ACCOUNT_PASSWORD=mipasswordseguro \
+GETH_HOST=http://localhost:8545 \
+CONTRACT_ABI_PATH=$(pwd)/abi.json \
+CONTRACT_ADDRESS=0x7e56220069CAaF8367EA42817EA9210296AeC7c6 \
+node dist/index.js
+```
+
 ### Deploy de la UI
 Al buildear se crea el archivo ```ui/dist/index.html``` y todo el resto de los recursos
 necesarios. Al acceder al index.html sólo se ve el componente de Stampeo. El html se ve así:
diff --git a/api/README.md b/api/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..f21ba21b8cacb316091b8dcc2755a8356ff5b886
--- /dev/null
+++ b/api/README.md
@@ -0,0 +1,27 @@
+# Ejemplo en BFA
+
+(en lugar de __UTC*__ poner el nombre completo del archivo de la cuenta)
+
+```bash
+cd api
+GETH_ACCOUNT_JSON="/home/bfa/bfa/network/node/keystore/UTC*" \
+GETH_ACCOUNT_PASSWORD="miclave" \
+GETH_HOST=http://localhost:8545 \
+CONTRACT_ABI_PATH="$(pwd)/abi.json" \
+CONTRACT_ADDRESS="0x7e56220069CAaF8367EA42817EA9210296AeC7c6" \
+npm run serve
+```
+
+# Ejemplo en test network
+
+(en lugar de __UTC*__ poner el nombre completo del archivo de la cuenta)
+
+```bash
+cd api
+GETH_ACCOUNT_JSON="/home/bfa/bfa/test2network/node/keystore/UTC*" \
+GETH_ACCOUNT_PASSWORD="miclave" \
+GETH_HOST=http://localhost:8545 \
+CONTRACT_ABI_PATH="$(pwd)/abi.json" \
+CONTRACT_ADDRESS="0xFc0f01A88bD08b988173A2354952087C9492d947" \
+npm run serve
+```
diff --git a/api/abi.json b/api/abi.json
new file mode 100644
index 0000000000000000000000000000000000000000..98c0e3804ab3fd8a6381ae3ae9e0c12f8750cc46
--- /dev/null
+++ b/api/abi.json
@@ -0,0 +1,187 @@
+[
+    {
+      "inputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "constructor",
+      "signature": "constructor"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "name": "from",
+          "type": "address"
+        },
+        {
+          "indexed": true,
+          "name": "object",
+          "type": "bytes32"
+        },
+        {
+          "indexed": false,
+          "name": "blockNo",
+          "type": "uint256"
+        }
+      ],
+      "name": "Stamped",
+      "type": "event",
+      "signature": "0x3a0b5d7066b49e6f19e8199e84c7a296092240386482cc1b23a7c4e3c98a79d5"
+    },
+    {
+      "constant": false,
+      "inputs": [
+        {
+          "name": "objectList",
+          "type": "bytes32[]"
+        }
+      ],
+      "name": "put",
+      "outputs": [],
+      "payable": false,
+      "stateMutability": "nonpayable",
+      "type": "function",
+      "signature": "0x3a00faae"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "pos",
+          "type": "uint256"
+        }
+      ],
+      "name": "getStamplistPos",
+      "outputs": [
+        {
+          "name": "",
+          "type": "bytes32"
+        },
+        {
+          "name": "",
+          "type": "address"
+        },
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x9d192428"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "object",
+          "type": "bytes32"
+        }
+      ],
+      "name": "getObjectCount",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xc2433cd3"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "object",
+          "type": "bytes32"
+        },
+        {
+          "name": "pos",
+          "type": "uint256"
+        }
+      ],
+      "name": "getObjectPos",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0x789bbb41"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "object",
+          "type": "bytes32"
+        },
+        {
+          "name": "stamper",
+          "type": "address"
+        }
+      ],
+      "name": "getBlockNo",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xbbc48b7c"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "stamper",
+          "type": "address"
+        }
+      ],
+      "name": "getStamperCount",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xc15ed491"
+    },
+    {
+      "constant": true,
+      "inputs": [
+        {
+          "name": "stamper",
+          "type": "address"
+        },
+        {
+          "name": "pos",
+          "type": "uint256"
+        }
+      ],
+      "name": "getStamperPos",
+      "outputs": [
+        {
+          "name": "",
+          "type": "uint256"
+        }
+      ],
+      "payable": false,
+      "stateMutability": "view",
+      "type": "function",
+      "signature": "0xa08d1a4f"
+    }
+  ]
\ No newline at end of file
diff --git a/api/src/StamperWrapper.js b/api/src/StamperWrapper.js
index 1d1e2f64861fd1444f30fc437be6d8beebe3f047..17760c7d824f26502aac34637362ef18f1497fc5 100644
--- a/api/src/StamperWrapper.js
+++ b/api/src/StamperWrapper.js
@@ -1,22 +1,24 @@
+import { sign } from "crypto";
+
 //const stamperInterface = require('../../contract/build/contracts/Stamper.json')
 
 class Stamper {
     constructor(web3, contractAbi, contractAddress) {
         this.web3 = web3
+        this.contractAddress = contractAddress
         this.contract = new web3.eth.Contract(contractAbi, contractAddress)
     }
 
-    setSender(fromAddress) {
-        this.from = fromAddress
-    }
-
-    async stamp(hashes) {
+    // stampea un conjunto de hashes.
+    // si walletAccount es undefined trata de usar la account de web3.eth.defaultAccount
+    async stamp(hashes, walletAccount) {
         console.log(`stamping ${hashes}`)
 
+        let defaultAccount = (walletAccount) ? walletAccount.address : this.web3.eth.defaultAccount
         let hashesToStamp = []
 
         for (let i=0; i < hashes.length; i++) {
-            let blockNo = await this.contract.methods.getBlockNo(hashes[i], this.from).call()
+            let blockNo = await this.contract.methods.getBlockNo(hashes[i], defaultAccount).call()
             if (blockNo == 0) hashesToStamp.push(hashes[i])
         }
 
@@ -25,10 +27,36 @@ class Stamper {
             resolve()
         })
 
-        let txPromise = this.contract.methods.put(hashesToStamp).send({
-            from: this.from,
-            gasLimit: 500000
-        })
+        let txPromise
+        let gasLimit = 2000000
+
+        if (walletAccount) {
+            let methodPut = this.contract.methods.put(hashesToStamp)
+            let encodedABI = methodPut.encodeABI()
+
+            let tx = {
+                to: this.contractAddress,
+                // v: 47525974938 * 35 + 2,
+                // v: 47525974938,
+                chainId: '200941592',
+                gas: gasLimit,
+                // gasLimit: gasLimit,
+                data: encodedABI
+            }
+            // tx.v = Buffer.from([47525974938])
+            // tx.nonce = this.web3.utils.toHex(await this.web3.eth.getTransactionCount(defaultAccount))
+
+            let signedTx = await walletAccount.signTransaction(tx)
+            // console.log(signedTx)
+            // txPromise = this.web3.eth.sendSignedTransaction(signedTx)
+            // txPromise = this.web3.eth.sendSignedTransaction('0x' + signedTx.serialize().toString('hex'))
+            txPromise = this.web3.eth.sendSignedTransaction(signedTx.rawTransaction)
+        } else {
+            txPromise = this.contract.methods.put(hashesToStamp).send({
+                from: defaultAccount,
+                gasLimit: gasLimit
+            })
+        }
 
         txPromise.then((receipt) => {
             console.log(`> hashes stampeados en bloque: ${receipt.blockNumber}`)
diff --git a/api/src/index.js b/api/src/index.js
index 6cc9da8fb0adcef6cec9147a7889d62a54175f7f..39cf60980199ccb20055b6c4b9a7cb02bb25e1aa 100644
--- a/api/src/index.js
+++ b/api/src/index.js
@@ -5,17 +5,15 @@ import express from 'express'
 import cors from 'cors'
 import bodyParser from 'body-parser'
 import basicAuth from 'express-basic-auth'
-//import SimpleStamper from './simpleStamperWrapper'
 import Stamper from './StamperWrapper'
+import fs from 'fs'
 
 /***************************************************/
 // Conexión al provider
 /***************************************************/
 const providerHost = process.env.GETH_HOST || 'http://localhost:7545'
-const accountIsSet = process.env.GETH_ACCOUNT || false
-// si no se seteó una account se usa esta const como el indice de accounts de ganache
-const account = (accountIsSet) ? process.env.GETH_ACCOUNT : 0
-
+// const providerHost = process.env.GETH_HOST || 'http://localhost:8545'
+const accountIsSet = process.env.GETH_ACCOUNT_JSON || false
 
 var web3 = web3
 if (typeof web3 !== 'undefined') {
@@ -28,16 +26,48 @@ if (typeof web3 !== 'undefined') {
     setupWeb3()
 }
 
+let contractAbi;
+let contractAddress;
+let walletAccount;
+
 async function setupWeb3() {
     try {
         let netIsListening = await web3.eth.net.isListening()
         let netId = await web3.eth.net.getId()
-        web3.eth.defaultAccount = (accountIsSet) ? account : (await web3.eth.getAccounts())[account]
+        if (accountIsSet) {
+            let rawKeyJsonV3 = fs.readFileSync(process.env.GETH_ACCOUNT_JSON)
+            let keyJsonV3 = JSON.parse(rawKeyJsonV3)
+            let key = web3.eth.accounts.decrypt(keyJsonV3, process.env.GETH_ACCOUNT_PASSWORD)
+            walletAccount = web3.eth.accounts.wallet.add(key)
+            web3.eth.defaultAccount = (await web3.eth.getAccounts())[0]
+        } else {
+            // se trata de utilizar una que haya abierta
+            web3.eth.defaultAccount = (await web3.eth.getAccounts())[0]
+        }
+
+        /***************************************************/
+        // Carga de contrato
+        /***************************************************/
+        if (process.env.CONTRACT_ABI_PATH) {
+            contractAbi = require(process.env.CONTRACT_ABI_PATH)
+            if (!process.env.CONTRACT_ADDRESS) {
+                console.error('Si se especifica el path de un abi, debe proveerse un address con la env CONTRACT_ADDRESS')
+                process.exit(1)
+            }
+            contractAddress = process.env.CONTRACT_ADDRESS
+        } else {
+            let path = '../../contract/build/contracts/Stamper.json'
+            console.log(`Intentando cargar ${path} netId: ${netId}`)
+            let data = require(path)
+            contractAbi = data.abi
+            contractAddress = data.networks[netId].address
+        }
 
         console.log(`Conectado exitosamente: 
  > host: ${providerHost}
  > netId: ${netId}
  > account: ${web3.eth.defaultAccount}
+ > address: ${contractAddress}
     `)
     } catch (e) {
         console.error('Error de conexión')
@@ -47,29 +77,7 @@ async function setupWeb3() {
 }
 
 /***************************************************/
-// Carga de contrato
-/***************************************************/
-let contractAbi;
-let contractAddress;
-
-if (process.env.CONTRACT_ABI_PATH) {
-    contractAbi = require(process.env.CONTRACT_ABI_PATH)
-    if (!process.env.CONTRACT_ADDRESS) {
-        console.error('Si se especifica el path de un abi, debe proveerse un address con la env CONTRACT_ADDRESS')
-        process.exit(1)
-    }
-    contractAddress = process.env.CONTRACT_ADDRESS
-} else {
-    let path = '../../contract/build/contracts/Stamper.json'
-    console.log(`Intentando cargar ${path}`)
-    let data = require(path)
-    contractAbi = data.abi
-    web3.eth.net.getId().then(function(netId) {
-        contractAddress = data.networks[netId].address
-    })
-}
-/***************************************************/
-// Setup API
+// Setup CORS y Auth
 /***************************************************/
 const app = express()
 
@@ -96,7 +104,6 @@ if (process.env.API_USER && process.env.API_PASS) {
 /***************************************************/
 app.post('/stamp', async (req, res) => {
     let ss = new Stamper(web3, contractAbi, contractAddress)
-    ss.setSender(web3.eth.defaultAccount)
 
     if (!("hashes" in req.body)) {
         res.status(422)
@@ -120,7 +127,7 @@ app.post('/stamp', async (req, res) => {
     }
 
     try {
-        let txHash = await ss.stamp(hashes)
+        let txHash = await ss.stamp(hashes, walletAccount)
         //let fullUrl = req.protocol + '://' + req.get('host')
         res.status(200).send('success')
     } catch (e) {
@@ -132,7 +139,6 @@ app.post('/stamp', async (req, res) => {
 
 app.get('/verify/:hash', async (req, res) => {
     let ss = new Stamper(web3, contractAbi, contractAddress)
-    ss.setSender(web3.eth.defaultAccount)
 
     var value = req.params.hash
     if (! value.startsWith('0x')) {
diff --git a/contract/.gitignore b/contract/.gitignore
index 30944692f3e9965ae406199abc5a3a2bca9196da..f03556e8df38b8f516800d1b0cc3a38807917a60 100644
--- a/contract/.gitignore
+++ b/contract/.gitignore
@@ -1,2 +1,3 @@
 .DS_Store
 build
+node_modules
diff --git a/contract/README.md b/contract/README.md
new file mode 100644
index 0000000000000000000000000000000000000000..cdb9a517a5478e4d38bdae5f96eae9811d47de93
--- /dev/null
+++ b/contract/README.md
@@ -0,0 +1,46 @@
+# Deployando a BFA
+
+Para hacer esto tuve que utilizar truffle-hdwallet-provider. Esto fue debido a
+la imposibilidad de unlockear la account en geth directamente por un cambio reciente:
+
+```bash
+npm install truffle-hdwallet-provider
+```
+
+Luego, hay que obtener la clave privada de la cuenta Ethereum y ponerla en la variable de entorno ```GETH_ACCOUNT_PKEY``` antes de invocar el ```truffle migrate``` a la red.
+
+Para obtener la clave privada hay que seguir las instrucciones en https://ethereum.stackexchange.com/questions/12830/how-to-get-private-key-from-account-address-and-password 
+
+Instalar **keythereum** en _otro_ directorio (porque si no se pelea con directorios que ya usa truffle):
+
+```bash
+mkdir /tmp/keythereum
+cd /tmp/keythereum
+npm install keythereum
+```
+
+Ubicar la dirección de la cuenta en el archivo que está en ```/home/bfa/bfa/network/node/keystore``` (o ```/home/bfa/bfa/test2network/node/keystore``` si es la red de testing).
+
+Después, invocar a la consola node.js (con el comando ```nodejs```) y ejecutar los siguientes pasos (cambiando _miclave_ por la clave de la cuenta -o el string vacío si la cuenta no tiene clave- y la dirección obtenida arriba en lugar de _MiDireccion_):
+
+```javascript
+var keythereum = require("keythereum");
+var datadir = "/home/bfa/bfa/network/node"; // si es la red de testing usar "/home/bfa/bfa/test2network/node"
+var address= "0xMiDireccion";
+const password = "miclave";
+
+var keyObject = keythereum.importFromFile(address, datadir);
+var privateKey = keythereum.recover(password, keyObject);
+console.log(privateKey.toString('hex'));
+```
+el ```console.log()``` va a imprimir una clave con este aspecto: **bab415bada55bab415bada55bab415bada55bab415bada55bab415bada55bab4**.
+
+Eso es lo que hay que poner en la variable de entorno ```GETH_ACCOUNT_PKEY```.
+
+La invocación se hace así **esto deployea a bfa**
+```bash
+GETH_ACCOUNT_PKEY=bab415bada55bab415bada55bab415bada55bab415bada55bab415bada55bab4 truffle migrate --network bfa
+```
+
+(Si se quiere deployar a la red de testing utilizar ```--network bfatest2```)
+
diff --git a/contract/migrations/1_initial_migration.js b/contract/migrations/1_initial_migration.js
index ee2135d2952eac46f0ed105282b87d68e8fae869..a78c8d72be5b7a958cf91ebf251bdbd402dc469e 100644
--- a/contract/migrations/1_initial_migration.js
+++ b/contract/migrations/1_initial_migration.js
@@ -1,5 +1,5 @@
 const Migrations = artifacts.require("Migrations");
 
-module.exports = function(deployer) {
+module.exports = function(deployer, network) {
   deployer.deploy(Migrations);
 };
diff --git a/contract/migrations/2_stamper.js b/contract/migrations/2_stamper.js
index 74b19d8fc382161920db7f908ba0ef6921915323..b8ee85f7f86c56e1007da24a437356517fcb32ab 100644
--- a/contract/migrations/2_stamper.js
+++ b/contract/migrations/2_stamper.js
@@ -1,5 +1,4 @@
 const Stamper = artifacts.require("Stamper");
-
-module.exports = function(deployer) {
+module.exports = function(deployer, network) {
   deployer.deploy(Stamper);
 };
diff --git a/contract/package-lock.json b/contract/package-lock.json
new file mode 100644
index 0000000000000000000000000000000000000000..f5ecf1a3481a8dd7fb50f2e78356989cd4bbf5c7
--- /dev/null
+++ b/contract/package-lock.json
@@ -0,0 +1,2675 @@
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+        "websocket": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2"
+      },
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+        "websocket": {
+          "version": "git://github.com/frozeman/WebSocket-Node.git#6c72925e3f8aaaea8dc8450f97627e85263999f2",
+          "from": "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible",
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+            "nan": "^2.3.3",
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+          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
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+      "resolved": "https://registry.npmjs.org/websocket/-/websocket-1.0.28.tgz",
+      "integrity": "sha512-00y/20/80P7H4bCYkzuuvvfDvh+dgtXi5kzDf3UcZwN6boTYaKvsrtZ5lIYm1Gsg48siMErd9M4zjSYfYFHTrA==",
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+        "nan": "^2.11.0",
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+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
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+        "query-string": "^5.0.1",
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+        "timed-out": "^4.0.1",
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+      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
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+        "xhr-request": "^1.0.1"
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+    "xhr2-cookies": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr2-cookies/-/xhr2-cookies-1.1.0.tgz",
+      "integrity": "sha1-fXdEnQmZGX8VXLc7I99yUF7YnUg=",
+      "requires": {
+        "cookiejar": "^2.1.1"
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+      "version": "1.8.0",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
+      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
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+    "xtend": {
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+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
+      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+    },
+    "yaeti": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/yaeti/-/yaeti-0.0.6.tgz",
+      "integrity": "sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc="
+    },
+    "yauzl": {
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+      "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
+      "requires": {
+        "buffer-crc32": "~0.2.3",
+        "fd-slicer": "~1.1.0"
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+    }
+  }
+}
diff --git a/contract/package.json b/contract/package.json
new file mode 100644
index 0000000000000000000000000000000000000000..09cf2d5d654215913a71d9957ebfe0bafef56f5f
--- /dev/null
+++ b/contract/package.json
@@ -0,0 +1,11 @@
+{
+  "name": "tsa2-contract",
+  "version": "1.0.0",
+  "description": "",
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "truffle-hdwallet-provider": "^1.0.9"
+  }
+}
diff --git a/contract/truffle-config.js b/contract/truffle-config.js
index cfd51a347cd498c5abdb48014a10ce128f93f4e6..d8ebd16e597c6520d37683ffcfc795ad126f90f4 100644
--- a/contract/truffle-config.js
+++ b/contract/truffle-config.js
@@ -21,9 +21,10 @@
 // const HDWalletProvider = require('truffle-hdwallet-provider');
 // const infuraKey = "fj4jll3k.....";
 //
-// const fs = require('fs');
 // const mnemonic = fs.readFileSync(".secret").toString().trim();
 
+const HDWalletProvider = require("truffle-hdwallet-provider");
+
 module.exports = {
   /**
    * Networks define how you connect to your ethereum client and let you set the
@@ -36,6 +37,20 @@ module.exports = {
    */
 
   networks: {
+    bfa: {
+      host: "127.0.0.1",     // Localhost (default: none)
+      port: 8545,            // Standard Ethereum port (default: none)
+      provider: () => new HDWalletProvider(process.env.GETH_ACCOUNT_PKEY, "http://127.0.0.1:8545"),
+      network_id: "47525974938",       // BFA produccion
+    },
+
+    bfatest2: {
+      host: "127.0.0.1",     // Localhost (default: none)
+      port: 8545,            // Standard Ethereum port (default: none)
+      provider: () => new HDWalletProvider(process.env.GETH_ACCOUNT_PKEY, "http://127.0.0.1:8545"),
+      network_id: "55555000000",       // BFA produccion
+    }
+
     // Useful for testing. The `development` name is special - truffle uses it by default
     // if it's defined here and no other network is specified at the command line.
     // You should run a client (like ganache-cli, geth or parity) in a separate terminal
@@ -97,3 +112,5 @@ module.exports = {
     }
   }
 }
+
+//provider.engine.stop()