bitcoin transaction ilograph.com sequence diagram

bitcoin-transaction-sequence-diagram

resources:
  - id: User
    name: User
  - id: WalletSoftware
    name: Wallet Software
  - id: BitcoinNetwork
    name: Bitcoin Network
  - id: MinerNodes
    name: Miner Nodes
  - id: Mempool
    name: Mempool
  - id: MiningSoftware
    name: Mining Software
  - id: Blockchain
    name: Blockchain

perspectives:
  - name: Bitcoin Transaction Sequence
    relations:
      - from: User
        to: WalletSoftware
        label: "1. Send Bitcoin"
      - from: WalletSoftware
        to: BitcoinNetwork
        label: "2. Broadcast transaction"
      - from: MinerNodes
        to: Mempool
        label: "3. Add transaction to mempool"
      - from: MinerNodes
        to: WalletSoftware
        label: "4. Transaction broadcasted confirmation"
      - from: User
        to: WalletSoftware
        label: "5. Receive broadcast confirmation"
      - from: MinerNodes
        to: Mempool
        label: "6. Select transactions"
      - from: MinerNodes
        to: MiningSoftware
        label: "7. Mine new block"
      - from: MinerNodes
        to: Blockchain
        label: "8. Add new block with transaction"
      - from: Blockchain
        to: MinerNodes
        label: "9. Confirm block added"
      - from: MinerNodes
        to: WalletSoftware
        label: "10. Transaction confirmed"
      - from: User
        to: WalletSoftware
        label: "11. Receive transaction confirmation"
        
    walkthrough:
    - highlight: User, WalletSoftware
      detail: 1
      text:  |-
        We'll look first at how the User sends Bitcoin through their Wallet Software. [See code](https://github.com/bitcoin/bitcoin/tree/master/src/wallet)
    - highlight: WalletSoftware, BitcoinNetwork
      detail: 2
      text:  |-
        The Wallet Software then broadcasts the transaction to the Bitcoin Network. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/net_processing.cpp)
    - highlight: MinerNodes, Mempool
      detail: 3
      text:  |-
        Miner Nodes will then add the transaction to the Mempool. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/validation.cpp)
    - highlight: MinerNodes, WalletSoftware
      detail: 4
      text:  |-
        A confirmation of the broadcasted transaction is sent back to the Wallet Software. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/net_processing.cpp)
    - highlight: User, WalletSoftware
      detail: 5
      text:  |-
        The User receives a notification confirming the transaction broadcast. [See code](https://github.com/bitcoin/bitcoin/tree/master/src/wallet)
    - highlight: MinerNodes, Mempool
      detail: 6
      text:  |-
        Miner Nodes then select the transactions to be mined from the Mempool. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/node/miner.cpp)
    - highlight: MinerNodes, MiningSoftware
      detail: 7
      text:  |-
        The selected transactions are then mined to create a new block. The fact that this step requires intense energy to complete is what keeps the chain protected from attack without having a centralized authority guarding it. Economic incentives align miner behavior. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/node/miner.cpp)
    - highlight: MinerNodes, Blockchain
      detail: 8
      text:  |-
        The new block, containing the transaction, is then added to the Blockchain. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/validation.cpp)
    - highlight: Blockchain, MinerNodes
      detail: 9
      text:  |-
        A confirmation is sent from the Blockchain to the Miner Nodes indicating the block addition. [See code](https://github.com/bitcoin/bitcoin/blob/master/src/net_processing.cpp)
    - highlight: MinerNodes, WalletSoftware
      detail: 10
      text:  |-
        The Wallet Software receives a confirmation that the transaction has been validated and added to a block. [See code](https://github.com/bitcoin/bitcoin/tree/master/src/wallet)
    - highlight: User, WalletSoftware
      detail: 11
      text:  |-
        Finally, the User gets a notification confirming that their transaction has been successfully validated and added to the Blockchain. [See code](https://github.com/bitcoin/bitcoin/tree/master/src/wallet)