Ledger Distributor

User Guide

Stock Blockchain Ledger & Spreadsheet App

This app allows you to track stock price entries over time while maintaining a secure blockchain ledger for every entry. It also lets you export your trade/price history into a spreadsheet (CSV file) for recordkeeping.

Features

• Sequential Stock Tracking – Input stock symbol, price, and timestamp.

• Blockchain Ledger – Every entry is chained securely with a cryptographic hash.

• Data Integrity – Each new block validates the previous one, making tampering nearly impossible.

• Spreadsheet Export – Save all records into a downloadable .csv file.

• Multi-Page Navigation – Simple navigation between input form, ledger view, and blockchain details.

How to Use

1. Start a New Entry

1. Go to Page 1 - Stock Entry.

2. Enter:

   • Stock Symbol (e.g., AAPL, TSLA, AMZN)

   • Current Price

   • Timestamp (auto-generated, but you can override if needed)

3. Click “Submit Entry.”

This creates a new block in the blockchain.

2. Add More Stock Records

1. Navigate to Page 2 - Spreadsheet View.

2. Each new entry will appear in the table.

3. You can enter as many new records as you want — each one is chained cryptographically to the last.

3. View Blockchain Integrity

1. Go to Page 3 - Blockchain Ledger.

2. You’ll see:

   • Block Index

   • Timestamp

   • Stock Data

   • Hash & Previous Hash

3. Each block references the previous hash to ensure immutability.

4. Save Your Records

1. On Page 2, click “Download Spreadsheet.”

2. A .csv file will be generated with all your data.

3. You can open it in Excel, Google Sheets, or any spreadsheet software.

Example Workflow

1. Input Stock = AAPL, $180.25 → Block #1 created.

2. Input Stock = TSLA, $240.80 → Block #2 created (linked to Block #1).

3. Input Stock = AMZN, $145.60 → Block #3 created (linked to Block #2).

Each block secures the previous, forming a tamper-proof trade history ledger.

Why Blockchain Here?

• Each stock entry = block.

• Each block has:

  • Index

  • Timestamp

  • Stock Data (symbol & price)

  • Hash (unique fingerprint)

  • Previous Hash (link to the block before it).

• Changing any past entry breaks the chain.

• This guarantees an unbreakable, transparent history of stock trades.

In short:

• Use Page 1 to enter stock data.

• Use Page 2 to see & save your spreadsheet.

• Use Page 3 to confirm blockchain integrity.