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  Explore the interactive Merkle Tree Laboratory and see how it  makes tampering easy to detect in a blockchain.  Click “Launch” on the lab option below to get started. Launch Merkle Tree Lab

A Merkle Tree is a data structure that lets you efficiently verify that data has not been changed . It is widely used in blockchains , distributed systems, databases, and Git. Imagine you have 4 pieces of data(or 4 transactions): A       B       C       D First, calculate the cryptographic hash of each: HASH(Transaction A)  HASH(Transaction B)  HASH(Transaction C)  HASH(Transaction D) This makes tampering easy to detect. The really clever part is that you don't need all the data to verify one item.  If there are 1,000,000 transactions, you only need roughly 20 hashes to prove that a particular  transaction belongs to the tree. In blockchain Suppose a Bitcoin block contains thousands of transactions: Merkle Tree = a tree of hashes used to efficiently prove that data belongs to a dataset and hasn't been altered.

From Bitcoin's Genesis Block to a Modern Block — How Mining, Difficulty, Nonce, Transactions and Block Structure Evolved Bitcoin Genesis Block or Block 0 Want to see the actual Bitcoin Genesis Block yourself?   Follow these simple steps: Step 1 — Visit Blockchain.com Open the Blockchain.com Bitcoin Explorer . Step 2 — Find the search box At the top of the page, you will see a search box labeled: Search Blockchain, Transactions, Addresses, Prediction Markets and Blocks Step 3 — Enter the block height Type: 0 and press Enter . Current Bitcoin Block 963585 Comparison - Block 0 vs Current Block  963585 How the Bitcoin Blockchain Evolved When Bitcoin started in 2009, mining was relatively easy. The Genesis Block (Block 0) had a mining difficulty of just 1.00 , and miners could use ordinary computers to search for a valid block. The block reward was 50 BTC . As more miners joined the network and mining hardware became dramatically more powerful, the Bitcoin network automatical...

  Explore the interactive Mining Laboratory and see how mining works in a blockchain.  Click “Launch” on the lab option below to get started. Launch Mining Lab MINING LABORATORY: 1. In the Transaction Data box try to change 1 BTC to 2 BTC or any value. 2. From the Mining Difficulty drop down list select any option like "1 Leading Zero" or "4 Leading Zeroes". 3.   Click on "Mine Block" Button and wait for few seconds. 4. After mining is complete a new hash value with message " VALID BLOCK MINED SUCCESSFULLY " will be displayed. 5. Please note the number of leading zeroes in the new hash will match the leading zeroes selected from the Mining Difficulty drop down list.

Example to understand Bitcoin mining: Imagine Alice sends a small amount of Bitcoin to Bob, then Bitcoin network performs following steps: Mining is the process that turns a collection of valid transactions into a new, accepted block in the Bitcoin blockchain.  The simplified process is: Miner's role: A Bitcoin miner collects transactions, builds a candidate block, performs Proof-of-Work to find a valid block hash, broadcasts the winning block, and—if the network accepts it—earns the block reward and transaction fees.

  Explore the interactive Blockchain Laboratory and see how blockchain fundamentals work in practice.  Click “Launch” on the lab option below to get started. Launch Blockchain Laboratory

What Is Blockchain? BLOCKCHAIN Example 1. Blockchain = a chain of blocks 2. W hat is inside a block? 3. Index = page number 4. Timestamp = when it happened 5. Hash = digital fingerprint 6. Valid hash 7. How is the block hash calculated? 8. Previous Hash = the link between blocks 9. Data = the actual information 10. Nonce = the number miners keep trying 11. Mining = finding a valid hash 12–13. What happens if someone changes the data? 14. Adding a new block 15. Peer-to-peer network 16. Peer messages

Explore the interactive Hash Lab & Block Lab and see how blockchain fundamentals work in practice.  Click “Launch” on the lab options below to get started. HASH LABORATORY: Input data  → SHA-256 Hash Compare  →  SHA-256 Hash of Input 1 vs  SHA-256 Hash of Input 2 Launch Hash Laboratory   To see the Avalanche Effect in action, enter a value, generate its hash, then change even a single character and generate the hash again. Notice how dramatically the hash changes.  The Avalanche Effect gives us sensitivity to changes . BLOCK LABORATORY Data Block(Block number + Timestamp + Transactions + Nonce) →  SHA-256 Hash Launch Block Laboratory

UNDERSTANDING HASH FUNCTIONS BEFORE BLOCKCHAIN Hashing is one of the fundamental building blocks of a blockchain. If you understand what a hash does, many blockchain concepts become much easier to understand.  Blockchain = data + hashing + networking + consensus + cryptography Hashing is especially important because it explains how blocks are connected and how changes can be detected . 1. Hash creates a fingerprint of data Suppose a block contains: A hash function takes all this information and produces: 7A3F91C8... is the hash and it represents the contents of the block 1. 2. Hashing is easy to perform forward, but computationally impractical to reverse . But why can't we reverse it?  Because a hash function compresses information . For example, imagine a hash function that takes 10 GB file and produces 256 bits.  So the original information has been massively compressed. There are potentially enormous numbers of different inputs that could produce a 256-bit output. Th...

  Corrective Waves Position and Alternation  (Zigzag, Flat, Triangle & Combination) The attached flow chart summarizes the four major corrective wave families in Elliott Wave Theory: Zigzag, Flat, Triangle, and Combination. Zigzag : Includes Single, Double, and Triple Zigzags. A Single Zigzag has a 5-3-5 structure, while Double and Triple Zigzags connect multiple Zigzags through X waves. Zigzags commonly appear in Wave-2, Wave-4, Wave-B, and other corrective positions. Flat : Includes Regular, Expanded, and Running Flats, all based on a 3-3-5 structure. Flats can occur in Wave-2, Wave-4, Wave-B, Wave-X, and several combination positions. Triangle : Includes Contracting, Barrier, Expanding, and Running Triangles, each normally having a 3-3-3-3-3 structure. Triangles commonly occur in Wave-4, Wave-B, Wave-X, and within combinations. Combination : Includes Double Three and Triple Three, which combine corrective structures using W-X-Y or W-X-Y-X-Z formations. Overall, correcti...

 Motive Waves Position and Alternation (Impulse and Diagonal) The above flow chart summarizes the three major Motive Wave patterns in Elliott Wave Theory: Impulse, Contracting Diagonal, and Expanding Diagonal. Impulse : Consists of five waves—1-2-3-4-5—and generally moves in the direction of the larger trend. It can occur as Wave-1, Wave-3, Wave-5, Wave-A of a Zigzag, and Wave-C of a Zigzag or Flat. Wave-1 and Wave-5 may also show alternation in their structure. Contracting Diagonal : A five-wave motive pattern, normally subdividing 3-3-3-3-3, and can appear as either a Leading or Ending Diagonal. It can occur in Wave-1, Wave-5, Wave-A of a Zigzag, or Wave-C of a Zigzag/Flat. Its internal waves may also alternate between different corrective structures. Expanding Diagonal : Similar to a Contracting Diagonal in its Leading/Ending role and 3-3-3-3-3 internal structure, but its trendlines expand rather than contract. It can occupy the same positions as a Contracting Diagonal. In short...

  Elliott Wave Theory is a form of technical analysis that studies market price movements through recurring wave patterns driven by investor psychology. It is broadly divided into two major categories: Motive Waves and Corrective Waves. Motive Waves move in the direction of the larger trend and consist mainly of Impulse and Diagonal patterns.  Corrective Waves move against the larger trend and consist of Zigzags, Flats, Triangles, and Combinations. Using the classification discussed above, Elliott Wave can be organized into 2 major categories, 6 pattern branches, and 15 commonly recognized pattern types.