diff --git a/CHANGELOG.md b/CHANGELOG.md
index 93602dea..81e3870f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -18,6 +18,8 @@ ml).
 - [addend] #102 adding endpoint for download metrics
 - [bugfix] #100 fixing bug of scheme live
 - [bugfix] #101 fixing bug when 2 users have one device and launch one live
+- [changes] #114 clean blockchein of deliverynote
+- [remove] #114 remove proof system 
 
 ## [1.0.3-beta]
 - [addend] #85 add mac of network adapter to device hid
diff --git a/ereuse_devicehub/migrations/versions/eca457d8b2a4_change_deliverynote.py b/ereuse_devicehub/migrations/versions/eca457d8b2a4_change_deliverynote.py
index 6709ea08..24f4a161 100644
--- a/ereuse_devicehub/migrations/versions/eca457d8b2a4_change_deliverynote.py
+++ b/ereuse_devicehub/migrations/versions/eca457d8b2a4_change_deliverynote.py
@@ -27,9 +27,9 @@ def get_inv():
 
 def upgrade():
     op.drop_column('deliverynote', 'ethereum_address', schema=f'{get_inv()}')
-    op.alter_column('deliverynote', 'deposit', new_column_name='amount')
-    op.alter_column('computer', 'deposit', new_column_name='amount')
-    op.alter_column('lot', 'deposit', new_column_name='amount')
+    op.alter_column('deliverynote', 'deposit', new_column_name='amount', schema=f'{get_inv()}')
+    op.alter_column('computer', 'deposit', new_column_name='amount', schema=f'{get_inv()}')
+    op.alter_column('lot', 'deposit', new_column_name='amount', schema=f'{get_inv()}')
     op.drop_column('computer', 'deliverynote_address', schema=f'{get_inv()}')
     op.drop_column('lot', 'deliverynote_address', schema=f'{get_inv()}')
     op.drop_table('proof_function', schema=f'{get_inv()}')
@@ -44,9 +44,9 @@ def upgrade():
 
 def downgrade():
     op.add_column('deliverynote', sa.Column('ethereum_address', citext.CIText(), nullable=True), schema=f'{get_inv()}')
-    op.alter_column('deliverynote', 'amount', new_column_name='deposit')
-    op.alter_column('computer', 'amount', new_column_name='deposit')
-    op.alter_column('lot', 'amount', new_column_name='deposit')
+    op.alter_column('deliverynote', 'amount', new_column_name='deposit', schema=f'{get_inv()}')
+    op.alter_column('computer', 'amount', new_column_name='deposit', schema=f'{get_inv()}')
+    op.alter_column('lot', 'amount', new_column_name='deposit', schema=f'{get_inv()}')
     op.add_column('computer', sa.Column('deliverynote_address', citext.CIText(), nullable=True), schema=f'{get_inv()}')
     op.add_column('lot', sa.Column('deliverynote_address', citext.CIText(), nullable=True), schema=f'{get_inv()}')
     op.create_table('proof',