Definition Of tokens
a sequence of bits passed continuously between nodes in a fixed order and enabling a node to transmit information.
The first field of bytes which is of fixed length is always present in every message and taken together, these bytes represent a unique message identifier called a token .
a thing serving as a visible or tangible representation of a fact, quality, feeling, etc..
mistletoe was cut from an oak tree as a token of good fortune
a voucher that can be exchanged for goods or services, typically one given as a gift or offered as part of a promotional offer.
redeem this token for a free dessert
an individual occurrence of a symbol or string, in particular.
Of course, one cannot write down a token of this infinite string.