AWS SDK for .NET Documentation
ExplicitHashKey Property
AmazonAmazon.Kinesis.ModelPutRecordRequestExplicitHashKey Did this page help you?   Yes   No    Tell us about it...
The hash value used to explicitly determine the shard the data record is assigned to by overriding the partition key hash.

Constraints:

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

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

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