Struct ModelProvenance 

pub struct ModelProvenance {
    pub model: EmbeddingModel,
    pub model_id: String,
    pub hash: String,
    pub loaded_at: SystemTime,
    pub loaded_at_iso: String,
}

Stable: external consumers may depend on this; breaking changes require a SemVer bump.

Model provenance information for security audits.

Tracks metadata about when and how a model was loaded, including a hash for verification that the model hasn’t been tampered with.

Example

use lattice_embed::{EmbeddingModel, ModelProvenance};

// Created when a model is loaded
let provenance = ModelProvenance::new(
    EmbeddingModel::BgeSmallEnV15,
    "BAAI/bge-small-en-v1.5".to_string(),
);

assert!(provenance.model_id.contains("BAAI"));
assert!(!provenance.hash.is_empty());

Fields

model: EmbeddingModel

Stable: model variant that was loaded.

model_id: String

Stable: source identifier (HuggingFace ID, URL, or file path).

hash: String

Stable: Blake3 hash of the model identifier + timestamp for uniqueness.

Note: This is a lightweight hash based on metadata, not a full hash of model weights (which would be expensive). For full model verification, use the lattice-inference library’s built-in checksum verification.

loaded_at: SystemTime

Stable: when the model was loaded.

loaded_at_iso: String

Stable: formatted timestamp string for convenience.

Implementations

impl ModelProvenance

pub fn new(model: EmbeddingModel, model_id: String) -> Self

Stable: create new provenance information for a loaded model.

pub fn dimensions(&self) -> usize

Stable: get the model dimensions.

pub fn matches_model(&self, expected: EmbeddingModel) -> bool

Stable: check if this provenance matches expected model.

Trait Implementations

impl Clone for ModelProvenance

fn clone(&self) -> ModelProvenance

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ModelProvenance

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ModelProvenance

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ModelProvenance

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.