diff --git a/api/__init__.py b/api/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/api/admin.py b/api/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/api/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/api/apps.py b/api/apps.py
new file mode 100644
index 0000000..66656fd
--- /dev/null
+++ b/api/apps.py
@@ -0,0 +1,6 @@
+from django.apps import AppConfig
+
+
+class ApiConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'api'
diff --git a/api/forms.py b/api/forms.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/api/forms.py
@@ -0,0 +1 @@
+
diff --git a/api/migrations/0001_initial.py b/api/migrations/0001_initial.py
new file mode 100644
index 0000000..22c5a1f
--- /dev/null
+++ b/api/migrations/0001_initial.py
@@ -0,0 +1,39 @@
+# Generated by Django 5.0.6 on 2024-09-19 15:09
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="Token",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True,
+                        primary_key=True,
+                        serialize=False,
+                        verbose_name="ID",
+                    ),
+                ),
+                ("token", models.UUIDField()),
+                (
+                    "owner",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+        ),
+    ]
diff --git a/api/migrations/__init__.py b/api/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/api/models.py b/api/models.py
new file mode 100644
index 0000000..b8bbc24
--- /dev/null
+++ b/api/models.py
@@ -0,0 +1,9 @@
+from django.db import models
+from user.models import User
+
+# Create your models here.
+
+
+class Token(models.Model):
+    token = models.UUIDField()
+    owner = models.ForeignKey(User, on_delete=models.CASCADE)
diff --git a/api/tables.py b/api/tables.py
new file mode 100644
index 0000000..ac1cc7a
--- /dev/null
+++ b/api/tables.py
@@ -0,0 +1,67 @@
+import django_tables2 as tables
+from django.utils.html import format_html
+from django.utils.translation import gettext_lazy as _
+
+from api.models import Token
+
+
+class ButtonColumn(tables.Column):
+    attrs = {
+        "a": {
+            "type": "button",
+            "class": "text-danger",
+            "title": "Remove",
+        }
+    }
+    # it makes no sense to order a column of buttons
+    orderable = False
+    # django_tables will only call the render function if it doesn't find
+    # any empty values in the data, so we stop it from matching the data
+    # to any value considered empty
+    empty_values = ()
+
+    def render(self):
+        return format_html('<i class="bi bi-trash"></i>')
+
+
+class TokensTable(tables.Table):
+    delete = ButtonColumn(
+            verbose_name=_("Delete"),
+            linkify={
+                "viewname": "api:delete_token",
+                "args": [tables.A("pk")]
+            },
+            orderable=False
+    )
+
+    token = tables.Column(verbose_name=_("Token"), empty_values=())
+
+    def render_view_user(self):
+        return format_html('<i class="bi bi-eye"></i>')
+
+    # def render_token(self, record):
+    #     return record.get_memberships()
+
+    # def order_membership(self, queryset, is_descending):
+    #     # TODO: Test that this doesn't return more rows than it should
+    #     queryset = queryset.order_by(
+    #         ("-" if is_descending else "") + "memberships__type"
+    #     )
+
+    #     return (queryset, True)
+
+    # def render_role(self, record):
+    #     return record.get_roles()
+
+    # def order_role(self, queryset, is_descending):
+    #     queryset = queryset.order_by(
+    #         ("-" if is_descending else "") + "roles"
+    #     )
+
+    #     return (queryset, True)
+
+    class Meta:
+        model = Token
+        template_name = "custom_table.html"
+        fields = ("token", "view_user")
+
diff --git a/api/templates/custom_table.html b/api/templates/custom_table.html
new file mode 100644
index 0000000..496ddec
--- /dev/null
+++ b/api/templates/custom_table.html
@@ -0,0 +1,100 @@
+{% load django_tables2 %}
+{% load i18n %}
+{% block table-wrapper %}
+<div class="table-container">
+    {% block table %}
+        <table class= "table table-striped table-sm">
+            {% block table.thead %}
+            {% if table.show_header %}
+                <thead {{ table.attrs.thead.as_html }}>
+                    <tr>
+                    {% for column in table.columns %}
+                        <th scope="col" {{ column.attrs.th.as_html }}>
+                            {% if column.orderable %}
+                                <a type="button" class="btn btn-grey border border-dark"
+                                    href="{% querystring table.prefixed_order_by_field=column.order_by_alias.next %}">{{ column.header }}</a>
+                            {% else %}
+                                {{ column.header }}
+                            {% endif %}
+                        </th>
+                    {% endfor %}
+                    </tr>
+                </thead>
+            {% endif %}
+            {% endblock table.thead %}
+            {% block table.tbody %}
+                <tbody {{ table.attrs.tbody.as_html }}>
+                {% for row in table.paginated_rows %}
+                    {% block table.tbody.row %}
+                    <tr {{ row.attrs.as_html }}>
+                        {% for column, cell in row.items %}
+                            <td {{ column.attrs.td.as_html }}>{% if column.localize == None %}{{ cell }}{% else %}{% if column.localize %}{{ cell|localize }}{% else %}{{ cell|unlocalize }}{% endif %}{% endif %}</td>
+                        {% endfor %}
+                    </tr>
+                    {% endblock table.tbody.row %}
+                {% empty %}
+                    {% if table.empty_text %}
+                    {% block table.tbody.empty_text %}
+                    <tr><td colspan="{{ table.columns|length }}">{{ table.empty_text }}</td></tr>
+                    {% endblock table.tbody.empty_text %}
+                    {% endif %}
+                {% endfor %}
+                </tbody>
+            {% endblock table.tbody %}
+            {% block table.tfoot %}
+            {% if table.has_footer %}
+            <tfoot {{ table.attrs.tfoot.as_html }}>
+                <tr>
+                {% for column in table.columns %}
+                    <td {{ column.attrs.tf.as_html }}>{{ column.footer }}</td>
+                {% endfor %}
+                </tr>
+            </tfoot>
+            {% endif %}
+            {% endblock table.tfoot %}
+        </table>
+    {% endblock table %}
+
+    {% block pagination %}
+        {% if table.page and table.paginator.num_pages > 1 %}
+        <ul class="pagination">
+            {% if table.page.has_previous %}
+                {% block pagination.previous %}
+                    <li class="previous">
+                        <a type="button" class="btn btn-grey border border-dark" href="{% querystring table.prefixed_page_field=table.page.previous_page_number %}">
+                            {% trans 'Previous' %}
+                        </a>
+                    </li>
+                {% endblock pagination.previous %}
+            {% endif %}
+            {% if table.page.has_previous or table.page.has_next %}
+            {% block pagination.range %}
+                {% for p in table.page|table_page_range:table.paginator %}
+                    <li {% if p == table.page.number %}class="active"{% endif %}>
+                        <a type="button" class="btn btn-grey{% if p == table.page.number %}-selected{% endif %}
+                            border border-dark"
+                        {% if p == '...' %}
+                             href="#">
+                        {% else %}
+                            href="{% querystring table.prefixed_page_field=p %}">
+                        {% endif %}
+                                {{ p }}
+                            </a>
+                    </li>
+                {% endfor %}
+            {% endblock pagination.range %}
+            {% endif %}
+            {% if table.page.has_next %}
+                {% block pagination.next %}
+                    <li class="next">
+                        <a type="button" class="btn btn-grey border border-dark" href="{% querystring table.prefixed_page_field=table.page.next_page_number %}">
+                            {% trans 'Next' %}
+                        </a>
+                    </li>
+                {% endblock pagination.next %}
+            {% endif %}
+        </ul>
+        {% endif %}
+    {% endblock pagination %}
+</div>
+{% endblock table-wrapper %}
diff --git a/api/templates/token.html b/api/templates/token.html
new file mode 100644
index 0000000..5185090
--- /dev/null
+++ b/api/templates/token.html
@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+{% load i18n %}
+{% load render_table from django_tables2 %}
+
+{% block content %}
+<h3>
+  <i class="{{ icon }}"></i>
+  {{ subtitle }}
+</h3>
+{% render_table table %}
+<div class="form-actions-no-box">
+    <a class="btn btn-green-admin" href="{% url 'api:new_token' %}">{% translate "Generate a new token" %} <i class="bi bi-plus"></i></a>
+</div>
+{% endblock %}
diff --git a/api/urls.py b/api/urls.py
new file mode 100644
index 0000000..f3c8028
--- /dev/null
+++ b/api/urls.py
@@ -0,0 +1,13 @@
+from api import views
+
+from django.urls import path
+
+
+app_name = 'api'
+
+urlpatterns = [
+    path('snapshot/', views.NewSnapshot, name='new_snapshot'),
+    path('tokens/', views.TokenView.as_view(), name='tokens'),
+    path('tokens/new', views.TokenNewView.as_view(), name='new_token'),
+    path('tokens/<int:pk>/del', views.TokenDeleteView.as_view(), name='delete_token'),
+]
diff --git a/api/views.py b/api/views.py
new file mode 100644
index 0000000..fbccb79
--- /dev/null
+++ b/api/views.py
@@ -0,0 +1,114 @@
+import json
+
+from django.shortcuts import get_object_or_404, redirect
+from django.utils.translation import gettext_lazy as _
+from django.views.decorators.csrf import csrf_exempt
+from django.core.exceptions import ValidationError
+from django.views.generic.edit import DeleteView
+from django.views.generic.base import View
+from django.http import JsonResponse
+from django_tables2 import SingleTableView
+from uuid import uuid4
+
+from dashboard.mixins import DashboardView
+from evidence.models import Annotation
+from evidence.parse import Build
+from user.models import User
+from api.models import Token
+from api.tables import TokensTable
+
+
+def save_in_disk(data, user):
+    pass
+
+
+@csrf_exempt
+def NewSnapshot(request):
+    # Accept only posts
+    if request.method != 'POST':
+        return JsonResponse({'error': 'Invalid request method'}, status=400)
+
+    # Authentication
+    # auth_header = request.headers.get('Authorization')
+    # if not auth_header or not auth_header.startswith('Bearer '):
+    #     return JsonResponse({'error': 'Invalid or missing token'}, status=401)
+
+    # token = auth_header.split(' ')[1]
+    # tk = Token.objects.filter(token=token).first()
+    # if not tk:
+    #     return JsonResponse({'error': 'Invalid or missing token'}, status=401)
+
+    # Validation snapshot
+    try:
+        data = json.loads(request.body)
+    except json.JSONDecodeError:
+        return JsonResponse({'error': 'Invalid JSON'}, status=400)
+
+    # try:
+    #     Build(data, None, check=True)
+    # except Exception:
+    #     return JsonResponse({'error': 'Invalid Snapshot'}, status=400)
+
+    exist_annotation = Annotation.objects.filter(
+        uuid=data['uuid']
+    ).first()
+
+    if exist_annotation:
+        raise ValidationError("error: the snapshot {} exist".format(data['uuid']))
+
+    # Process snapshot
+    # save_in_disk(data, tk.user)
+
+    try:
+        # Build(data, tk.user)
+        user = User.objects.get(email="user@example.org")
+        Build(data, user)
+    except Exception:
+        return JsonResponse({'status': 'fail'}, status=200)
+
+    return JsonResponse({'status': 'success'}, status=200)
+
+
+
+
+class TokenView(DashboardView, SingleTableView):
+    template_name = "token.html"
+    title = _("Credential management")
+    section = "Credential"
+    subtitle = _('Managament Tokens')
+    icon = 'bi bi-key'
+    model = Token
+    table_class = TokensTable
+
+    def get_queryset(self):
+        """
+        Override the get_queryset method to filter events based on the user type.
+        """
+        return Token.objects.filter().order_by("-id")
+
+    def get_context_data(self, **kwargs):
+        context = super().get_context_data(**kwargs)
+        context.update({
+            'tokens': Token.objects,
+        })
+        return context
+
+
+class TokenDeleteView(DashboardView, DeleteView):
+    model = Token
+
+    def get(self, request, *args, **kwargs):
+        self.pk = kwargs['pk']
+        self.object = get_object_or_404(self.model, pk=self.pk, owner=self.request.user)
+        self.object.delete()
+
+        return redirect('api:tokens')
+
+
+class TokenNewView(DashboardView, View):
+
+    def get(self, request, *args, **kwargs):
+        Token.objects.create(token=uuid4(), owner=self.request.user)
+
+        return redirect('api:tokens')
+            
diff --git a/dashboard/mixins.py b/dashboard/mixins.py
index 8b70934..df6e206 100644
--- a/dashboard/mixins.py
+++ b/dashboard/mixins.py
@@ -39,7 +39,7 @@ class DashboardView(LoginRequiredMixin):
             'section': self.section,
             'path': resolve(self.request.path).url_name,
             'user': self.request.user,
-            'lot_tags': LotTag.objects.filter(owner=self.request.user)
+            'lot_tags': LotTag.objects.filter(owner=self.request.user.institution)
         })
         return context
 
@@ -58,7 +58,7 @@ class DetailsMixin(DashboardView, TemplateView):
 
     def get(self, request, *args, **kwargs):
         self.pk = kwargs['pk']
-        self.object = get_object_or_404(self.model, pk=self.pk, owner=self.request.user)
+        self.object = get_object_or_404(self.model, pk=self.pk, owner=self.request.user.institution)
         return super().get(request, *args, **kwargs)
 
     def get_context_data(self, **kwargs):
diff --git a/dashboard/templates/base.html b/dashboard/templates/base.html
index 97d090a..5c92024 100644
--- a/dashboard/templates/base.html
+++ b/dashboard/templates/base.html
@@ -163,6 +163,12 @@
                   </li>
                 </ul>
               </li>
+              <li class="nav-item">
+                <a class="nav-link fw-bold" href="{% url 'api:tokens' %}">
+                  <i class="bi-menu-button-wide icon_sidebar"></i>
+                  {% trans 'Tokens' %}
+                </a>
+              </li>
             </ul>
           </div>
         </nav>
diff --git a/device/models.py b/device/models.py
index 6264130..b283433 100644
--- a/device/models.py
+++ b/device/models.py
@@ -113,14 +113,14 @@ class Device:
         self.lots = [x.lot for x in DeviceLot.objects.filter(device_id=self.id)]
 
     @classmethod
-    def get_unassigned(cls, user, offset=0, limit=None):
+    def get_unassigned(cls, institution, offset=0, limit=None):
 
         sql = """
               SELECT DISTINCT t1.value from evidence_annotation as t1
                 left join lot_devicelot as t2 on t1.value = t2.device_id
-              where t2.device_id is null and owner_id=={user} and type=={type}
+              where t2.device_id is null and owner_id=={institution} and type=={type}
         """.format(
-            user=user.id,
+            institution=institution.id,
             type=Annotation.Type.SYSTEM,
         )
         if limit:
@@ -134,19 +134,19 @@ class Device:
             annotations = cursor.fetchall()
 
         devices = [cls(id=x[0]) for x in annotations]
-        count = cls.get_unassigned_count(user)
+        count = cls.get_unassigned_count(institution)
         return devices, count
 
 
     @classmethod
-    def get_unassigned_count(cls, user):
+    def get_unassigned_count(cls, institution):
 
         sql = """
               SELECT count(DISTINCT t1.value) from evidence_annotation as t1
                 left join lot_devicelot as t2 on t1.value = t2.device_id
-              where t2.device_id is null and owner_id=={user} and type=={type};
+              where t2.device_id is null and owner_id=={institution} and type=={type};
         """.format(
-            user=user.id,
+            institution=institution.id,
             type=Annotation.Type.SYSTEM,
         )
 
@@ -170,22 +170,17 @@ class Device:
     def manufacturer(self):
         if not self.last_evidence:
             self.get_last_evidence()
-        return self.last_evidence.doc['device']['manufacturer']
+        return self.last_evidence.get_manufacturer()
 
     @property
     def type(self):
         if not self.last_evidence:
             self.get_last_evidence()
-        return self.last_evidence.doc['device']['type']
+        return self.last_evidence.get_chassis()
 
     @property
     def model(self):
         if not self.last_evidence:
             self.get_last_evidence()
-        return self.last_evidence.doc['device']['model']
+        return self.last_evidence.get_model()
 
-    @property
-    def type(self):
-        if not self.last_evidence:
-            self.get_last_evidence()
-        return self.last_evidence.doc['device']['type']
diff --git a/device/views.py b/device/views.py
index 05183b0..85ba7da 100644
--- a/device/views.py
+++ b/device/views.py
@@ -1,5 +1,6 @@
 import json
 
+from django.http import Http404
 from django.urls import reverse_lazy
 from django.shortcuts import get_object_or_404
 from django.utils.translation import gettext_lazy as _
@@ -98,7 +99,7 @@ class DetailsView(DashboardView, TemplateView):
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
         self.object.initial()
-        lot_tags = LotTag.objects.filter(owner=self.request.user)
+        lot_tags = LotTag.objects.filter(owner=self.request.user.institution)
         context.update({
             'object': self.object,
             'snapshot': self.object.get_last_evidence(),
@@ -119,20 +120,22 @@ class AddAnnotationView(DashboardView, CreateView):
         form.instance.owner = self.request.user.institution
         form.instance.user = self.request.user
         form.instance.uuid = self.annotation.uuid
-        form.instance.uuid = self.annotation.uuid
         form.instance.type = Annotation.Type.USER
         response = super().form_valid(form)
         return response
 
     def get_form_kwargs(self):
         pk = self.kwargs.get('pk')
+        institution = self.request.user.institution
         self.annotation = Annotation.objects.filter(
-            owner=self.request.user.institution,
+            owner=institution,
             value=pk,
             type=Annotation.Type.SYSTEM
         ).first()
+        
         if not self.annotation:
-            get_object_or_404(Annotation, pk=0, owner=self.request.user.institution)
+            raise Http404
+
         self.success_url = reverse_lazy('device:details', args=[pk])
         kwargs = super().get_form_kwargs()
         return kwargs
@@ -156,11 +159,16 @@ class AddDocumentView(DashboardView, CreateView):
 
     def get_form_kwargs(self):
         pk = self.kwargs.get('pk')
+        institution = self.request.user.institution
         self.annotation = Annotation.objects.filter(
-            owner=self.request.user.institution, value=pk, type=Annotation.Type.SYSTEM
+            owner=institution,
+            value=pk,
+            type=Annotation.Type.SYSTEM
         ).first()
+
         if not self.annotation:
-            get_object_or_404(Annotation, pk=0, owner=self.request.user.institution)
+            raise Http404
+
         self.success_url = reverse_lazy('device:details', args=[pk])
         kwargs = super().get_form_kwargs()
         return kwargs
diff --git a/dhub/settings.py b/dhub/settings.py
index e09fd13..bb0f874 100644
--- a/dhub/settings.py
+++ b/dhub/settings.py
@@ -29,7 +29,7 @@ SECRET_KEY = "django-insecure-1p8rs@qf$$l^!vsbetagojw23kw@1ez(qi8^(s0t&#7!wyh!l3
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = True
 
-ALLOWED_HOSTS = []
+ALLOWED_HOSTS = config('ALLOWED_HOSTS', default='[]', cast=Csv())
 
 
 # Application definition
@@ -43,6 +43,7 @@ INSTALLED_APPS = [
     "django.contrib.staticfiles",
     'django_extensions',
     'django_bootstrap5',
+    'django_tables2',
     "rest_framework",
     "login",
     "user",
@@ -54,6 +55,7 @@ INSTALLED_APPS = [
     "documents",
     "dashboard",
     "admin",
+    "api",
 ]
 
 
diff --git a/dhub/urls.py b/dhub/urls.py
index e9cec23..fba9bd3 100644
--- a/dhub/urls.py
+++ b/dhub/urls.py
@@ -26,4 +26,5 @@ urlpatterns = [
     path("admin/", include("admin.urls")),
     path("user/", include("user.urls")),
     path("lot/", include("lot.urls")),
+    path('api/', include('api.urls')),
 ]
diff --git a/docker-compose.yml b/docker-compose.yml
index b6e2d01..a106f6e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,8 @@ services:
     build:
       dockerfile: docker/devicehub-django.Dockerfile
     environment:
-      DEBUG: true
+      - DEBUG=true
+      - ALLOWED_HOSTS=*
     volumes:
       - .:/opt/devicehub-django
     ports:
diff --git a/docker-reset.sh b/docker-reset.sh
new file mode 100755
index 0000000..9264b93
--- /dev/null
+++ b/docker-reset.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# Copyright (c) 2024 Pedro <copyright@cas.cat>
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+set -e
+set -u
+# DEBUG
+set -x
+
+main() {
+        # remove old database
+        sudo rm -vf db/*
+        docker compose down
+        docker compose build
+        docker compose up
+}
+
+main "${@}"
+
+# written in emacs
+# -*- mode: shell-script; -*-
diff --git a/docker/devicehub-django.entrypoint.sh b/docker/devicehub-django.entrypoint.sh
index 158406e..68e3760 100644
--- a/docker/devicehub-django.entrypoint.sh
+++ b/docker/devicehub-django.entrypoint.sh
@@ -21,7 +21,9 @@ deploy() {
                 #   inspired by https://medium.com/analytics-vidhya/django-with-docker-and-docker-compose-python-part-2-8415976470cc
                 echo "INFO detected NEW deployment"
                 ./manage.py migrate
-                ./manage.py add_user user@example.org 1234
+                ./manage.py add_institution example-org
+                # TODO: one error on add_user, and you don't add user anymore
+                ./manage.py add_user example-org user@example.org 1234
         fi
 }
 
diff --git a/evidence/migrations/0004_alter_annotation_owner.py b/evidence/migrations/0004_alter_annotation_owner.py
new file mode 100644
index 0000000..26c9bda
--- /dev/null
+++ b/evidence/migrations/0004_alter_annotation_owner.py
@@ -0,0 +1,22 @@
+# Generated by Django 5.0.6 on 2024-09-18 10:55
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("evidence", "0003_alter_annotation_type"),
+        ("user", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="annotation",
+            name="owner",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="user.institution"
+            ),
+        ),
+    ]
diff --git a/evidence/models.py b/evidence/models.py
index 0e077a5..5a28481 100644
--- a/evidence/models.py
+++ b/evidence/models.py
@@ -1,8 +1,9 @@
 import json
 
+from dmidecode import DMIParse
 from django.db import models
 
-from utils.constants import STR_SM_SIZE, STR_EXTEND_SIZE
+from utils.constants import STR_SM_SIZE, STR_EXTEND_SIZE, CHASSIS_DH
 from evidence.xapian import search
 from user.models import User, Institution
 
@@ -33,6 +34,7 @@ class Evidence:
         self.owner = None
         self.doc = None
         self.created = None
+        self.dmi = None
         self.annotations =  []
 
         self.get_owner()
@@ -61,6 +63,11 @@ class Evidence:
 
         for xa in matches:
             self.doc = json.loads(xa.document.get_data())
+            
+        if self.doc.get("software") == "EreuseWorkbench":
+            dmidecode_raw = self.doc["data"]["dmidecode"]
+            self.dmi = DMIParse(dmidecode_raw)
+
 
     def get_time(self):
         if not self.doc:
@@ -73,6 +80,32 @@ class Evidence:
     def components(self):
         return self.doc.get('components', [])
 
+    def get_manufacturer(self):
+        if self.doc.get("software") != "EreuseWorkbench":
+            return self.doc['device']['manufacturer']
+        
+        return self.dmi.manufacturer().strip()
+    
+    def get_model(self):
+        if self.doc.get("software") != "EreuseWorkbench":
+            return self.doc['device']['model']
+        
+        return self.dmi.model().strip()
+
+    def get_chassis(self):
+        if self.doc.get("software") != "EreuseWorkbench":
+            return self.doc['device']['model']
+        
+        chassis = self.dmi.get("Chassis")[0].get("Type", '_virtual')        
+        lower_type = chassis.lower()
+        
+        for k, v in CHASSIS_DH.items():
+            if lower_type in v:
+                return k
+        return ""
+
+
+
     @classmethod
     def get_all(cls, user):
         return Annotation.objects.filter(
diff --git a/evidence/parse.py b/evidence/parse.py
index b329bcd..548040e 100644
--- a/evidence/parse.py
+++ b/evidence/parse.py
@@ -4,9 +4,29 @@ import shutil
 import hashlib
 
 from datetime import datetime
+from dmidecode import DMIParse
 from evidence.xapian import index
 from evidence.models import Evidence, Annotation
-from utils.constants import ALGOS
+from utils.constants import ALGOS, CHASSIS_DH
+
+
+def get_network_cards(child, nets):
+    if child['id'] == 'network':
+        nets.append(child)
+    if child.get('children'):
+        [get_network_cards(x, nets) for x in child['children']]
+        
+        
+def get_mac(lshw):
+    nets = []
+
+    get_network_cards(json.loads(lshw), nets)
+    nets_sorted = sorted(nets, key=lambda x: x['businfo'])
+    # This funcion get the network card integrated in motherboard
+    # integrate = [x for x in nets if "pci@0000:00:" in x.get('businfo', '')]
+
+    if nets_sorted:
+        return nets_sorted[0]['serial']
 
 
 class Build:
@@ -33,13 +53,17 @@ class Build:
         }
 
     def get_hid_14(self):
-        device = self.json['device']
-        manufacturer = device.get("manufacturer", '')
-        model = device.get("model", '')
-        chassis = device.get("chassis", '')
-        serial_number = device.get("serialNumber", '')
-        sku = device.get("sku", '')
-        hid = f"{manufacturer}{model}{chassis}{serial_number}{sku}"
+        if self.json.get("software") == "EreuseWorkbench":
+            hid = self.get_hid(self.json)
+        else:
+            device = self.json['device']
+            manufacturer = device.get("manufacturer", '')
+            model = device.get("model", '')
+            chassis = device.get("chassis", '')
+            serial_number = device.get("serialNumber", '')
+            sku = device.get("sku", '')
+            hid = f"{manufacturer}{model}{chassis}{serial_number}{sku}"
+            
         return hashlib.sha3_256(hid.encode()).hexdigest()
 
     def create_annotations(self):
@@ -53,3 +77,40 @@ class Build:
                 key=k,
                 value=v
             )
+
+    def get_chassis_dh(self):
+        chassis = self.get_chassis()
+        lower_type = chassis.lower()
+        for k, v in CHASSIS_DH.items():
+            if lower_type in v:
+                return k
+        return self.default
+
+    def get_sku(self):
+        return self.dmi.get("System")[0].get("SKU Number", "n/a").strip()
+    
+    def get_chassis(self):
+        return self.dmi.get("Chassis")[0].get("Type", '_virtual')
+
+    def get_hid(self, snapshot):
+        dmidecode_raw = snapshot["data"]["dmidecode"]
+        self.dmi = DMIParse(dmidecode_raw)
+
+        manufacturer = self.dmi.manufacturer().strip()
+        model = self.dmi.model().strip()
+        chassis = self.get_chassis_dh()
+        serial_number = self.dmi.serial_number()
+        sku = self.get_sku()
+
+        if not snapshot["data"].get('lshw'):
+            return f"{manufacturer}{model}{chassis}{serial_number}{sku}"
+        
+        lshw = snapshot["data"]["lshw"]
+        # mac = get_mac2(hwinfo_raw) or ""
+        mac = get_mac(lshw) or ""
+        if not mac:
+            print("WARNING!! No there are MAC address")
+        else:
+            print(f"{manufacturer}{model}{chassis}{serial_number}{sku}{mac}")
+
+        return f"{manufacturer}{model}{chassis}{serial_number}{sku}{mac}"
diff --git a/lot/migrations/0003_alter_lot_owner_alter_lotannotation_owner_and_more.py b/lot/migrations/0003_alter_lot_owner_alter_lotannotation_owner_and_more.py
new file mode 100644
index 0000000..806c6f1
--- /dev/null
+++ b/lot/migrations/0003_alter_lot_owner_alter_lotannotation_owner_and_more.py
@@ -0,0 +1,36 @@
+# Generated by Django 5.0.6 on 2024-09-18 10:55
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("lot", "0002_lotannotation"),
+        ("user", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="lot",
+            name="owner",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="user.institution"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="lotannotation",
+            name="owner",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="user.institution"
+            ),
+        ),
+        migrations.AlterField(
+            model_name="lottag",
+            name="owner",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.CASCADE, to="user.institution"
+            ),
+        ),
+    ]
diff --git a/lot/models.py b/lot/models.py
index 9078459..3926f29 100644
--- a/lot/models.py
+++ b/lot/models.py
@@ -6,14 +6,14 @@ from utils.constants import (
     STR_EXTEND_SIZE,
 )
 
-from user.models import User
+from user.models import Institution
 # from device.models import Device
-from evidence.models import Annotation
+# from evidence.models import Annotation
 
 
 class LotTag(models.Model):
     name = models.CharField(max_length=STR_SIZE, blank=False, null=False)
-    owner = models.ForeignKey(User, on_delete=models.CASCADE)
+    owner = models.ForeignKey(Institution, on_delete=models.CASCADE)
 
     def __str__(self):
         return self.name
@@ -31,7 +31,7 @@ class Lot(models.Model):
     code = models.CharField(max_length=STR_SIZE, blank=True, null=True)
     description = models.CharField(max_length=STR_SIZE, blank=True, null=True)
     closed = models.BooleanField(default=True)
-    owner = models.ForeignKey(User, on_delete=models.CASCADE)
+    owner = models.ForeignKey(Institution, on_delete=models.CASCADE)
     type = models.ForeignKey(LotTag, on_delete=models.CASCADE)
 
     def add(self, v):
@@ -52,7 +52,7 @@ class LotAnnotation(models.Model):
 
     created = models.DateTimeField(auto_now_add=True)
     lot  = models.ForeignKey(Lot, on_delete=models.CASCADE)
-    owner = models.ForeignKey(User, on_delete=models.CASCADE)
+    owner = models.ForeignKey(Institution, on_delete=models.CASCADE)
     type =  models.SmallIntegerField(choices=Type) 
     key = models.CharField(max_length=STR_EXTEND_SIZE)
     value = models.CharField(max_length=STR_EXTEND_SIZE)
diff --git a/lot/views.py b/lot/views.py
index 280450e..46252c8 100644
--- a/lot/views.py
+++ b/lot/views.py
@@ -28,7 +28,7 @@ class NewLotView(DashboardView, CreateView):
     )
 
     def form_valid(self, form):
-        form.instance.owner = self.request.user
+        form.instance.owner = self.request.user.institution
         response = super().form_valid(form)
         return response
 
@@ -83,8 +83,8 @@ class AddToLotView(DashboardView, FormView):
 
     def get_context_data(self, **kwargs):
         context = super().get_context_data(**kwargs)
-        lots = Lot.objects.filter(owner=self.request.user)
-        lot_tags = LotTag.objects.filter(owner=self.request.user)
+        lots = Lot.objects.filter(owner=self.request.user.institution)
+        lot_tags = LotTag.objects.filter(owner=self.request.user.institution)
         context.update({
             'lots': lots,
             'lot_tags':lot_tags,
@@ -93,7 +93,7 @@ class AddToLotView(DashboardView, FormView):
 
     def get_form(self):
         form = super().get_form()
-        form.fields["lots"].queryset = Lot.objects.filter(owner=self.request.user)
+        form.fields["lots"].queryset = Lot.objects.filter(owner=self.request.user.institution)
         return form
 
     def form_valid(self, form):
@@ -123,10 +123,10 @@ class LotsTagsView(DashboardView, TemplateView):
     def get_context_data(self, **kwargs):
         self.pk = kwargs.get('pk')
         context = super().get_context_data(**kwargs)
-        tag = get_object_or_404(LotTag, owner=self.request.user, id=self.pk)
+        tag = get_object_or_404(LotTag, owner=self.request.user.institution, id=self.pk)
         self.title += " {}".format(tag.name)
         self.breadcrumb += " {}".format(tag.name)
-        lots = Lot.objects.filter(owner=self.request.user).filter(type=tag)
+        lots = Lot.objects.filter(owner=self.request.user.institution).filter(type=tag)
         context.update({
             'lots': lots,
             'title': self.title,
@@ -144,7 +144,7 @@ class LotAddDocumentView(DashboardView, CreateView):
     fields = ("key", "value")
 
     def form_valid(self, form):
-        form.instance.owner = self.request.user
+        form.instance.owner = self.request.user.institution
         form.instance.lot = self.lot
         form.instance.type = LotAnnotation.Type.DOCUMENT
         response = super().form_valid(form)
@@ -152,7 +152,7 @@ class LotAddDocumentView(DashboardView, CreateView):
 
     def get_form_kwargs(self):
         pk = self.kwargs.get('pk')
-        self.lot = get_object_or_404(Lot, pk=pk, owner=self.request.user)
+        self.lot = get_object_or_404(Lot, pk=pk, owner=self.request.user.institution)
         self.success_url = reverse_lazy('lot:documents', args=[pk])
         kwargs = super().get_form_kwargs()
         return kwargs
@@ -166,10 +166,10 @@ class LotDocumentsView(DashboardView, TemplateView):
     def get_context_data(self, **kwargs):
         self.pk = kwargs.get('pk')
         context = super().get_context_data(**kwargs)
-        lot = get_object_or_404(Lot, owner=self.request.user, id=self.pk)
+        lot = get_object_or_404(Lot, owner=self.request.user.institution, id=self.pk)
         documents = LotAnnotation.objects.filter(
             lot=lot,
-            owner=self.request.user,
+            owner=self.request.user.institution,
             type=LotAnnotation.Type.DOCUMENT,
         )
         context.update({
@@ -189,10 +189,10 @@ class LotAnnotationsView(DashboardView, TemplateView):
     def get_context_data(self, **kwargs):
         self.pk = kwargs.get('pk')
         context = super().get_context_data(**kwargs)
-        lot = get_object_or_404(Lot, owner=self.request.user, id=self.pk)
+        lot = get_object_or_404(Lot, owner=self.request.user.institution, id=self.pk)
         annotations = LotAnnotation.objects.filter(
             lot=lot,
-            owner=self.request.user,
+            owner=self.request.user.institution,
             type=LotAnnotation.Type.USER,
         )
         context.update({
@@ -213,7 +213,7 @@ class LotAddAnnotationView(DashboardView, CreateView):
     fields = ("key", "value")
 
     def form_valid(self, form):
-        form.instance.owner = self.request.user
+        form.instance.owner = self.request.user.institution
         form.instance.lot = self.lot
         form.instance.type = LotAnnotation.Type.USER
         response = super().form_valid(form)
@@ -221,7 +221,7 @@ class LotAddAnnotationView(DashboardView, CreateView):
 
     def get_form_kwargs(self):
         pk = self.kwargs.get('pk')
-        self.lot = get_object_or_404(Lot, pk=pk, owner=self.request.user)
+        self.lot = get_object_or_404(Lot, pk=pk, owner=self.request.user.institution)
         self.success_url = reverse_lazy('lot:annotations', args=[pk])
         kwargs = super().get_form_kwargs()
         return kwargs
diff --git a/requirements.txt b/requirements.txt
index 9d4492f..217d120 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,9 +3,10 @@ Django==5.0.6
 django-bootstrap5==24.2
 django-extensions==3.2.3
 djangorestframework==3.15.1
+django-tables2==2.6.0
 python-decouple==3.3
 py-dmidecode==0.1.3
 pandas==2.2.2
 xlrd==2.0.1
 odfpy==1.4.1
-
+pytz==2024.2
diff --git a/user/management/commands/add_institution.py b/user/management/commands/add_institution.py
index 622dff8..b7a4a26 100644
--- a/user/management/commands/add_institution.py
+++ b/user/management/commands/add_institution.py
@@ -1,6 +1,6 @@
 from django.core.management.base import BaseCommand
 from user.models import Institution
-
+from lot.models import LotTag
 
 class Command(BaseCommand):
     help = "Create a new Institution"
@@ -9,4 +9,17 @@ class Command(BaseCommand):
         parser.add_argument('name', type=str, help='institution')
 
     def handle(self, *args, **kwargs):
-        Institution.objects.create(name=kwargs['name'])
+        self.institution = Institution.objects.create(name=kwargs['name'])
+        self.create_lot_tags()
+
+    def create_lot_tags(self):
+        tags = [
+            "Entrada",
+            "Salida",
+            "Temporal"
+        ]
+        for tag in tags:
+            LotTag.objects.create(
+                name=tag,
+                owner=self.institution
+            )
diff --git a/user/management/commands/add_user.py b/user/management/commands/add_user.py
index f4cc780..d6d3bd8 100644
--- a/user/management/commands/add_user.py
+++ b/user/management/commands/add_user.py
@@ -1,6 +1,5 @@
 from django.core.management.base import BaseCommand
 from django.contrib.auth import get_user_model
-from lot.models import LotTag
 from user.models import Institution
 
 
@@ -31,17 +30,5 @@ class Command(BaseCommand):
             password=password,
             is_admin=is_admin,
         )
-        self.u.set_password(password)
+        self.u.set_password(self.password)
         self.u.save()
-
-    def create_lot_tags(self):
-        tags = [
-            "Entrada",
-            "Salida",
-            "Temporal"
-        ]
-        for tag in tags:
-            LotTag.objects.create(
-                name=tag,
-                owner=self.u
-            )
diff --git a/utils/constants.py b/utils/constants.py
index 2fd9a13..e481d6c 100644
--- a/utils/constants.py
+++ b/utils/constants.py
@@ -20,3 +20,21 @@ HID_ALGO1 = [
 ALGOS = {
     "hidalgo1": HID_ALGO1,
 }
+
+
+CHASSIS_DH = {
+    'Tower': {'desktop', 'low-profile', 'tower', 'server'},
+    'Docking': {'docking'},
+    'AllInOne': {'all-in-one'},
+    'Microtower': {'mini-tower', 'space-saving', 'mini'},
+    'PizzaBox': {'pizzabox'},
+    'Lunchbox': {'lunchbox'},
+    'Stick': {'stick'},
+    'Netbook': {'notebook', 'sub-notebook'},
+    'Handheld': {'handheld'},
+    'Laptop': {'portable', 'laptop'},
+    'Convertible': {'convertible'},
+    'Detachable': {'detachable'},
+    'Tablet': {'tablet'},
+    'Virtual': {'_virtual'},
+}