AWS SDK for .NET Documentation
StartingHashKey Property
AmazonAmazon.Kinesis.ModelHashKeyRangeStartingHashKey Did this page help you?   Yes   No    Tell us about it...
The starting hash key of the hash key range.

Constraints:

Pattern
0|([1-9]\d{0,38})

Declaration Syntax
C#
public string StartingHashKey { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)