signet::forge::InferenceLogReader Class Reference

Reads ML inference log Parquet files and verifies hash chain integrity. More...

#include <inference_log.hpp>

Public Member Functions
expected< std::vector< InferenceRecord > >	read_all () const
	Get all inference records from the file.
expected< AuditMetadata >	audit_metadata () const
	Get the audit chain metadata from the Parquet file's key-value metadata.
AuditChainVerifier::VerificationResult	verify_chain () const
	Verify the hash chain integrity by re-hashing each record and checking chain continuity.
const Schema &	schema () const
	Get the schema of the inference log file.
int64_t	num_records () const
	Number of records in the file.
Move-only semantics
	InferenceLogReader ()=default
	InferenceLogReader (const InferenceLogReader &)=delete
InferenceLogReader &	operator= (const InferenceLogReader &)=delete
	InferenceLogReader (InferenceLogReader &&)=default
InferenceLogReader &	operator= (InferenceLogReader &&)=default

Static Public Member Functions
static expected< InferenceLogReader >	open (const std::string &path)
	Open an inference log Parquet file and pre-load all column data.

Detailed Description

Reads ML inference log Parquet files and verifies hash chain integrity.

Usage: auto reader = InferenceLogReader::open("inference_log_abc123_0_999.parquet"); auto records = reader->read_all(); auto verify = reader->verify_chain(); if (!verify.valid) { /* tampered! *‍/ }

Definition at line 728 of file inference_log.hpp.

Constructor & Destructor Documentation

InferenceLogReader() [1/3]

signet::forge::InferenceLogReader::InferenceLogReader ( )

default

InferenceLogReader() [2/3]

signet::forge::InferenceLogReader::InferenceLogReader ( const InferenceLogReader &  )

delete

InferenceLogReader() [3/3]

signet::forge::InferenceLogReader::InferenceLogReader ( InferenceLogReader &&  )

default

Member Function Documentation

audit_metadata()

expected< AuditMetadata > signet::forge::InferenceLogReader::audit_metadata ( ) const

inline

Get the audit chain metadata from the Parquet file's key-value metadata.

Returns

The AuditMetadata extracted from signetstack.audit.* keys.

Definition at line 800 of file inference_log.hpp.

num_records()

int64_t signet::forge::InferenceLogReader::num_records ( ) const

inline

Number of records in the file.

Definition at line 903 of file inference_log.hpp.

open()

static expected< InferenceLogReader > signet::forge::InferenceLogReader::open ( const std::string &  path )

inlinestatic

Open an inference log Parquet file and pre-load all column data.

Parameters

path	Path to the inference log Parquet file.

Returns

The reader, or an error if the file cannot be opened or parsed.

Definition at line 734 of file inference_log.hpp.

operator=() [1/2]

InferenceLogReader & signet::forge::InferenceLogReader::operator= ( const InferenceLogReader &  )

delete

operator=() [2/2]

InferenceLogReader & signet::forge::InferenceLogReader::operator= ( InferenceLogReader &&  )

default

read_all()

expected< std::vector< InferenceRecord > > signet::forge::InferenceLogReader::read_all ( ) const

inline

Get all inference records from the file.

Returns

A vector of InferenceRecord objects reconstructed from all row groups.

Definition at line 764 of file inference_log.hpp.

schema()

const Schema & signet::forge::InferenceLogReader::schema ( ) const

inline

Get the schema of the inference log file.

Definition at line 898 of file inference_log.hpp.

verify_chain()

AuditChainVerifier::VerificationResult signet::forge::InferenceLogReader::verify_chain ( ) const

inline

Verify the hash chain integrity by re-hashing each record and checking chain continuity.

Reconstructs hash chain entries from stored columns, recomputes data_hash from the record fields, and runs the full AuditChainVerifier pipeline.

Returns

A VerificationResult indicating whether the chain is valid and, if not, which entry failed verification.

See also

AuditChainVerifier::verify

Definition at line 829 of file inference_log.hpp.

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The documentation for this class was generated from the following file:

• include/signet/ai/inference_log.hpp