A single record instance, the root of the response. A type for a single record. A simple version string, e.g. “0.1.0” The time interval, in seconds, between expected records The time the seed value was generated as the number of seconds since January 1, 1970 A seed value represented as a 64 byte (512-bit) hex string value The SHA-512 hash value for the previous record - 64 byte hex string A digital signature (RSA) computed over (in order): version, frequency, timeStamp, seedValue, previousHashValue, errorCode Note: Except for version, the hash is on the byte representations and not the string representations of the data values The SHA-512 hash of the signatureValue as a 64 byte hex string The status code value: 0 - Chain intact, values all good 1 - Start of a new chain of values, previous hash value will be all zeroes 2 - Time between values is greater than the frequency, but the chain is still intact