---
title: "Read an artifact identity hash chain in observation order."
method: GET
path: "/api/artifacts/{id}/transparency"
tags: ["Agent Docs"]
---

# Read an artifact identity hash chain in observation order.

`GET /api/artifacts/{id}/transparency`

## Request

- Base URL: `https://huggingbay.xyz`
- URL: `https://huggingbay.xyz/api/artifacts/{id}/transparency`
- Auth: none required

Returns at most 200 observations, oldest first. Recompute entry hashes and predecessor links; an empty list means no observations have been recorded. This handler uses the production Postgres backend. The local JSON fixture backend may not serve this route.

**Inputs.** Path, query and header fields are listed below. No request body is required.

**Outputs.** See each status below for its media type, schema and headers. A missing record or unavailable capability is not a successful empty result.

**Errors.** API JSON failures use the documented response schema. Read code, message and next; retry only when the response allows it. Auth, invalid input and missing records need a caller change.

**Rate limits.** Public read budgets apply by client IP and route group. This operation can have a smaller route-specific budget. Read Retry-After on 429 or retryable 503 responses.

**Example setup.** Use an identifier returned by the matching list, search or create operation. Sample identifiers are not a promise that a record exists.

## Path parameters

- `id` string, required

## Response `200`

Read an artifact identity hash chain in observation order.

- object
  - `schemaVersion` 'hugging-bay.transparency.v1', required
  - `artifactId` string, required
  - `entries` object[], required
    - `event` string
    - `digest` string
    - `prevDigest` string, nullable
    - `digestMethod` string
    - `prevEntryHash` string, nullable
    - `entryHash` string
    - `observedAt` string
  - `verification` string, required
  - `note` string, required

## Other responses

- `429`: Request budget exceeded. Wait for Retry-After.
- `501`: Transparency history requires Postgres.

---

[API](https://skmtc.dev/huggingbay/apis/hugging-bay-public-api.md) · [All operations](https://skmtc.dev/huggingbay/apis/hugging-bay-public-api/llms.txt) · [OpenAPI document](https://skmtc.dev/huggingbay/apis/hugging-bay-public-api/revisions/865eb0f1b6ef?raw)