Source: oas/oas/oas-wasm/src/verify_lineage.rs. SHA-256: 0c9cc23d0054f81e4c6beb897009376acde39711afa4a2c544a1bfb2edeac5ec.

This source reference follows declared modules and preserves feature attributes. It includes public declarations and implementation methods in those modules. Private-module exports and trait resolution still require the compiler; not every declaration is a crate-root import. Function bodies and constant values are omitted. Source comments describe their implementation context and are not a production deployment claim.

verify_lineage::VerifyLineageInput

Input for lineage verification.

#[derive(Debug, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct VerifyLineageInput {
/// The document whose lineage to verify (as JSON).

pub document: serde_json::Value,
/// Pre-fetched parent documents keyed by DID.

pub parents: HashMap<String, serde_json::Value>,
/// Optional maximum generation depth (defaults to 16).

#[serde(alias = "maxGeneration")]
pub max_generation: Option<u32>,
/// Verifier-controlled root trust anchors.

#[serde(default, alias = "trustAnchors")]
pub trust_anchors: Vec<TrustAnchor>
}

Source line: 19.

verify_lineage::VerifyLineageResult

Result of lineage verification.

#[derive(Debug, Serialize)]
pub struct VerifyLineageResult {
/// Whether the lineage is valid.

pub ok: bool,
/// The root DID (if chain terminates at a root).

#[serde(skip_serializing_if = "Option::is_none")]
pub root_did: Option<String>,
/// The generation depth.

#[serde(skip_serializing_if = "Option::is_none")]
pub generation: Option<u32>,
/// Stable typed error code (if verification failed).

#[serde(skip_serializing_if = "Option::is_none")]
pub error_code: Option<String>,
/// Error message (if verification failed).

#[serde(skip_serializing_if = "Option::is_none")]
pub error: Option<String>
}

Source line: 34.

verify_lineage::verify_lineage

Verifies a lineage chain using pre-fetched documents.

This is a synchronous function suitable for WASM environments. All parent documents must be provided upfront — no network requests are made.

Arguments

input_json - JSON string containing a [VerifyLineageInput].

Returns

A JSON string containing a [VerifyLineageResult].

Examples

use oas_wasm::verify_lineage::verify_lineage;
use oas_crypto::keypair::OasKeyPair;
use oas_document::builder::DocumentBuilder;
use oas_document::conformance::ConformanceLevel;
use oas_lineage::config::TrustAnchor;

let keypair = OasKeyPair::generate();
let doc = DocumentBuilder::new("did:oas:test:hmr:alice", "hmr")
    .conformance_level(ConformanceLevel::L0)
    .add_verification_method(&keypair)
    .build_and_sign(&keypair, "2026-01-15T00:00:00Z")
    .unwrap();

let anchor = TrustAnchor::new(
    &doc.id,
    format!("{}#key-1", doc.id),
    keypair.public_key_multibase(),
).with_document_digest(doc.canonical_digest().unwrap());
let input = serde_json::json!({
    "document": doc,
    "parents": {},
    "trustAnchors": [anchor]
});

let result = verify_lineage(&serde_json::to_string(&input).unwrap());
assert!(result.contains("\"ok\":true"));

#[cfg_attr(target_arch = "wasm32", wasm_bindgen::prelude::wasm_bindgen)]
pub fn verify_lineage(input_json: &str) -> String;

Source line: 112.

oas-wasm · verify_lineage