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Algorand Specifications

The timestamp tt is a 64-bit signed integer.

The timestamp is purely informational and states when a block was first proposed, expressed in the number of seconds since the Unix epoch (00:00:00 UTC on Thursday, 1 January 1970).

The timestamp tr+1 of a block in round r is valid if:

• tr=0 or
• tr+1>tr and tr+1<tr+Δtmax.

Important

EXAMPLE:

Suppose the block production stalls on round r for a prolonged time. When correct operations resume, a certain number n of blocks has to be committed until the timestamp catches up to external time references. If t∗ is the current external time reference, then:

n=⌈t∗−trΔtmax⌉