Algorithm 3 Tampering Check
V_ID: Vaccine Lot ID
1.	Procedure Tempering Check(FakeID, block of the network, succeeding block)
2.	FakeID is the new V_ID
3.	Forged/Modified
4.	a = already stored block of the network
5.	a1 = succeeding block
6.	Tampering done by V_ID will be store in a
7.	If a1.previous_hash! = a.hash then
8.	Print (“tampered block not valid”)
9.	End If
10.	Else
11.	Print (“tampered free valid block”)
12.	End Else
13.	End Procedure