Pseudo Code Generator

Blockchain Supply Chain Process

This pseudo-code outlines a blockchain implementation within a supply chain, detailing the roles of Supplier, Manufacturer, Distributor, and Retailer. It includes structures, functions for block creation, proof of work, and the main

Prompt

B=Block
V=V1, V2, V3, V4, V5, V6
V1. V2=V2
V1. V3=V3
V1. V4=V4
V1. V5=V5
V1. V6=V6
V1.H=Cal(h)
Create Calh(V1)
D=Str (V1.V2) +Str (V1.V3) +Str (V1.V4) +Str (V1.V4) +Str (V1.V5) +Str (V1.V6)
Return hashlib. sha256(D. encode ()). hexdigest ()
BC=V1.chain[]
V1. Creategb
Creategb(V1)
Gb=B (0, “0”, t.t(), “gb”,0)
V1. chain. Append(gb)
Get lb(V1)
Return V1. chain [-1]
Create PoUW (V1, lp)
P=0
While V1. Vp (lp, p) is false
P+=1
Return p
Create vp (V1, lp, p)
G=Str(lp)+Str(p)
Gh=hashlib.sha256(g. encode ()). hexdigest ()
Return gh [:4] == “0000” #Adjust difficulty by changing the no. of leading zeros
Create addb (V1, dp)
Lb=V1.get lb
Np=V1.PoUW(lp. p)
If V1. valid p (lbp, np) &p==np
Nb=B (len (V1. chain), b.h, t.t(), d, p)
V1. chain. Append(nb)
Return true
Return false
A= {“A1”, “A2”, “A3”] #PoA
S= {“P1”, “file1.txt”, “P2”:” file2.txt”} #PoS
#Supplier
Create Sp
Bc=BC ()
#initial data from the supplier
Sd= {“P”: “Rm”, “q”:1000, “sid”: “Sr}
# Proof of useful work
Sp=bc.pouw(0)
#Add a block to the blockchain
Bc.add_b (Sd, sp)
Return bc
#Manufacturer
Create mp(sbc)
#Retrieve the last block from the supplier's blockchain
Lb=Sbc.get lb ()
#Manufacturer’s data
Md= {“P”: “FP”, “q”:500, “Mid”: “m1”}
#proof of useful work
Mp=Sb.PoUW(lb. p)
#Add a block to the blockchain
Sb.add b (Md, Mp)
Return Sb
#Distributor
Create dp (Mb)
#Retrieve the last block from the manufacturer's blockchain
Lb=Mbc.get lb ()
#Distributors data
Dd= {“P”: “dp”, “q”:300, “did”: “d1”}
#Proof of authority
Dp=a [0]
Mbc. add b (dd, dp)
Return bc
#Reatailer 
Create rp(dbc)
#Retrieve the last block from the distributor's blockchain
 lb=dbc.get lb ()
#Retailer’s data
Rd= {“p”: “sp”, “q”:200, “rid”: “R1”}
#Proof of storage
Pname= “p” +str(len(rd[“p”]))
Rp=S.get (pname, “no sp”)
#Add a block to the blockchain
Dbc.addb(rd, rp)
Return dbc
SC=SP ()
MC=MP(SC)
DC=DP(MC)
RC=RP(DC)
#Print the final blockchain for the retailer
For b in RC.C
Print (“B {b.V1}, P: {b.p}, H: {b.h}, D: {b.d}”)

Answer

Pseudo Code for Blockchain Implementation

1. Structure Definitions

Define Block:
    Properties:
        index
        previous_hash
        timestamp
        data
        proof
    
Define V1:
    Properties:
        V2
        V3
        V4
        V5
        V6
        H
        chain []

Define Supplier:
    Properties:
        P
        q
        sid

Define Manufacturer:
    Properties:
        P
        q
        Mid

Define Distributor:
    Properties:
        P
        q
        did

Define Retailer:
    Properties:
        P
        q
        rid

2. Functions and Logic

2.1 Initialization

Initialize V1.V2 = V2
Initialize V1.V3 = V3
Initialize V1.V4 = V4
Initialize V1.V5 = V5
Initialize V1.V6 = V6
V1.H = Calculate_Hash(V1)

2.2 Creating a Block

Function Create_Calh(V1):
    D = Convert_to_String(V1.V2) + Convert_to_String(V1.V3) + Convert_to_String(V1.V4) + Convert_to_String(V1.V4) + Convert_to_String(V1.V5) + Convert_to_String(V1.V6)
    Return Calculate_Hash(D)

Function Create_gb(V1):
    bc = V1.chain[]
    gb = Block(0, "0", Current_Time(), "gb", 0)
    Append gb to V1.chain
    Return Get_Last_Block(V1)

Function Get_Last_Block(V1):
    Return V1.chain[-1]

2.3 Proof of Useful Work

Function Create_PoUW(V1, lb):
    p = 0
    While Validate_V1_Work(V1, lb, p) is false:
        p += 1
    Return p

Function Validate_V1_Work(V1, lb, p):
    g = Convert_to_String(lb) + Convert_to_String(p)
    gh = Calculate_Hash(g)
    Return gh[:4] == "0000"  // Adjust difficulty by changing the number of leading zeros

2.4 Adding a Block

Function Create_addb(V1, dp):
    lb = V1.Get_Last_Block()
    np = V1.Proof_of_Useful_Work(lp, p)
    If V1.Valid_Proof(lb, np) AND p == np:
        nb = Block(len(V1.chain), lb.hash, Current_Time(), dp, p)
        Append nb to V1.chain
        Return true
    Return false

3. Main Logic Execution

3.1 For Supplier Role

Function Supplier_Process():
    Create Sp
    bc = BC()
    Sd = { "P": "Rm", "q": 1000, "sid": "Sr" }
    Sp = bc.Proof_of_Useful_Work(0)
    bc.add_b(Sd, sp)
    Return bc

3.2 For Manufacturer Role

Function Manufacturer_Process(sbc):
    lb = sbc.Get_Last_Block()
    Md = { "P": "FP", "q": 500, "Mid": "m1" }
    Mp = sbc.Proof_of_Useful_Work(lb.p)
    sbc.Add_Block(Md, Mp)
    Return sbc

3.3 For Distributor Role

Function Distributor_Process(mb):
    lb = mb.Get_Last_Block()
    Dd = { "P": "dp", "q": 300, "did": "d1" }
    Dp = A[0]
    mb.Add_Block(Dd, dp)
    Return mb

3.4 For Retailer Role

Function Retailer_Process(dbc):
    lb = dbc.Get_Last_Block()
    Rd = { "P": "sp", "q": 200, "rid": "R1" }
    pname = "p" + Length(Rd.P)
    rp = S.get(pname, "no sp")
    dbc.Add_Block(Rd, rp)
    Return dbc

4. Final Execution

SC = Supplier_Process()
MC = Manufacturer_Process(SC)
DC = Distributor_Process(MC)
RC = Retailer_Process(DC)

For b in RC.chain:
    Print("B {b.V1}, P: {b.P}, H: {b.H}, D: {b.D}")

Conclusion

This pseudo code lays out the logic for implementing a simple blockchain system involving roles of Supplier, Manufacturer, Distributor, and Retailer, focusing on block creation, proof of useful work, and chain validation. Each function is distinctly defined to underscore its purpose and flow within the overarching system.