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Block Page

The Block page within the wallet app provides a detailed view of the internal structure and metadata of a specific block in the blockchain. This documentation outlines each component and field present on the Block page, offering insights into the technical aspects of blockchain operations.

Core Section

The Block element contains comprehensive information about the internals of a block, including its unique identifiers, proof of work, roots, proofs, and various metrics.

  • Block Number: A unique identifier for each block, also referred to as block height. This field indicates the position of the block in the blockchain and includes an approximate fork possibility.
  • Block Hash: A unique ID that identifies a block, ensuring its uniqueness within the blockchain.
  • Parent Hash: The unique ID of the previous or parent block, establishing the chain of blocks.
  • Proof of Work (VDF Solution Proof): Evidence that the block producer has performed sufficient computational work to generate the block.
  • Transaction Root: A Merkle root of all transaction hashes included in a block and its parent block's transaction root, ensuring data integrity.
  • Receipt Root: A Merkle root of all transaction receipts hashes included in a block and its parent block's receipt root, verifying the completion of transactions.
  • State Root: A Merkle root of all state hashes included in a block and its parent block's state root, confirming the current state of the blockchain.
  • Producer Proof: A signature that authenticates the block, ensuring it was created by an authorized producer.
  • Producer Account: The account that created the block, recovered from the signature, identifying the block creator.
  • Leader Priority: The producer account's position in the committee. When the leader number is 1, the block is considered unforkable, achieving instant finality.
  • Status: Contains chain extension time, indicating how long it took to extend the chain with this block.
  • Timestamp: The date and time when the block was evaluated, providing a temporal reference for the block's creation.
  • Confidence: The number of blocks created after this block (confirmations), indicating the level of trust in the block's permanence.
  • Transactions: The total number of transactions included in the block.
  • Transitions: The number of state transitions that occurred within the block.
  • Coinbase: The amount of TAN token minted for the block producer as a reward.
  • Difficulty: An abstract value indicating how hard it is to mine the block. It may also include a penalty badge if the block was created by a leader other than 1, signifying increased difficulty.
  • Absolute Work: An abstract value representing the total work done by the entire chain, including this block. This value is crucial for fork resolution.
  • Gas Limit: The total gas limit for the block, calculated as the sum of the 'Gas limit' fields of all transactions within it.
  • Gas Use: The amount of gas used by this block, indicating the computational resources consumed.

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Slot Section

The Slot section provides insights into the timing and performance of block creation.

  • Slot Activity: The time taken to create a specified number of previous blocks, offering a measure of blockchain activity.
  • Slot Status: Specifies next block's minimal transaction fees based on slot congestion that is based on slot gas use/limit ratio. Usually, network becomes congested when this ratio rises to about 25%. When this happens, next block will only include paid transaction as an anti-spam measure and nodes will reject costless transactions until network becomes under-utilized again.
  • Slot Block Time: The average block time based on the slot activity field, providing a benchmark for expected block creation times.
  • Slot Gas Limit: Max block gas limit multiplied by max slot length.
  • Slot Gas Use: The total gas use for a slot, calculated as the sum of the 'Gas use' fields of all blocks within it.

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Transaction Section

The Block page also includes a list of transaction hashes contained within the block. Each transaction hash is indexed within the block, allowing users to access specific transactions easily.