Struct Event 

pub struct Event {

    pub id: EventId,
    pub schema_version: u16,
    pub observed_at: DateTime<Utc>,
    pub recorded_at: DateTime<Utc>,
    pub source: EventSource,
    pub event_type: EventType,
    pub trace_id: Option<TraceId>,
    pub session_id: Option<String>,
    pub domain_tags: Vec<String>,
    pub payload: Value,
    pub payload_hash: String,
    pub prev_event_hash: Option<String>,
    pub event_hash: String,
}

An immutable observed fact in the Cortex ledger.

Field order is the BUILD_SPEC §9.1 wire order; do not reorder without a schema bump.

Fields

id: EventId

Stable identifier (also the dedup key for re-ingest).

schema_version: u16

Schema version this row was written under.

observed_at: DateTime<Utc>

When the event was observed in the world.

recorded_at: DateTime<Utc>

When Cortex recorded the event (typically >= observed_at).

source: EventSource

Where the event came from.

event_type: EventType

What kind of event this is.

trace_id: Option<TraceId>

Trace this event belongs to, if any.

session_id: Option<String>

Session identifier (free-form; not modeled as a typed ID at this layer).

domain_tags: Vec<String>

Free-form domain tags (agents, security, …).

payload: Value

Structured payload. Schema is event-type-specific and not validated at this layer; downstream consumers may run typed validation.

payload_hash: String

Hex-encoded BLAKE3 hash of the canonical payload encoding. Computed by cortex-ledger; opaque here.

prev_event_hash: Option<String>

Hex-encoded event_hash of the previous event in the chain (if any).

event_hash: String

Hex-encoded event_hash of this event.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for Event

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl PartialEq for Event

fn eq(&self, other: &Event) -> 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 Event

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Event

impl StructuralPartialEq for Event