How Does a Pool Operator Detect ‘Share Hijacking’?
Share hijacking is detected by rigorous validation checks on the submitted shares. The pool verifies the share's timestamp, ensuring it is recent and within an acceptable window.
It also checks the nonce and the block header against the current mining job template to ensure the work is original and was performed for the current task. Anomalous submission patterns can also flag a potential attack.
Glossar
Mining Job Template
Structure ⎊ The Mining Job Template represents the structured data packet provided by a mining pool server to an individual miner, containing all the necessary information to begin searching for a valid block hash.
Anomalous Submission Patterns
Detection ⎊ Identifying anomalous submission patterns involves real-time monitoring of miner activity within a cryptocurrency pool to flag deviations from expected statistical distributions.
Pool Operator
Function ⎊ The pool operator is the centralized entity responsible for coordinating the collective computational power of individual miners within a mining pool to increase the probability of discovering a block.