Core Protocoltick
Tick
A PoH entry with zero transactions that advances the clock. There are 64 ticks per slot by default, each representing a fixed number of SHA-256 hash iterations. Ticks establish the passage of time even when no transactions are being processed, maintaining the PoH chain continuity.
Related terms
3Core Protocol
Entry
An ordered unit within a block containing a mix of PoH ticks and transaction batches. Each entry includes a PoH hash, a...
Core Protocol
Proof of History (PoH)
A clock mechanism that cryptographically proves the passage of time between events. PoH uses a sequential SHA-256 hash c...
Core Protocol
Slot
A time window during which a designated leader validator can produce a block. Each slot lasts approximately 400 millisec...