Struct OuterGradient 

pub struct OuterGradient {
    pub task_id: String,
    pub round: u32,
    pub fragment: u32,
    pub trainer_did: String,
    pub trainer_address: Address,
    pub safetensors_hash: Hash,
    pub payload_bytes: u64,
    pub inner_step_count: u64,
    pub submitted_at: Timestamp,
    pub signature: Signature,
    pub attestation: Option<TrainingAttestation>,
}

A trainer’s outer gradient submission for one fragment in one round.

The actual tensor payload is referenced by safetensors_hash and lives off-chain (gossip topic + content-addressed object store). The Rust protocol layer aggregates over ndarray views of the decoded payload; it never holds the raw tensor in memory.

Fields

task_id: String

Task this submission is for.

round: u32

Outer round number (0-indexed).

fragment: u32

Fragment index within the architecture (0..fragment_count).

trainer_did: String

Trainer DID.

trainer_address: Address

Address bound to the trainer’s TDIP identity.

safetensors_hash: Hash

SHA-256 of the safetensors payload. Aggregator pulls the payload by this hash; if it doesn’t match, the submission is rejected.

payload_bytes: u64

Payload size in bytes (for bandwidth accounting).

inner_step_count: u64

Vector clock entry: number of inner SGD steps the trainer had completed when this gradient was emitted. Decoupled DiLoCo’s asynchronous learner support hinges on this.

submitted_at: Timestamp

Submission timestamp.

signature: Signature

Trainer’s signature over the canonical bytes of all fields above.

attestation: Option<TrainingAttestation>

Optional TEE attestation (Verified and Confidential tiers).

Trait Implementations

impl Clone for OuterGradient

fn clone(&self) -> OuterGradient

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OuterGradient

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for OuterGradient

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for OuterGradient

fn eq(&self, other: &OuterGradient) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for OuterGradient

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for OuterGradient