GET

Protected data vault

Get protected object

/api/v2/data-vault/objects/{object_uuid}

AUTHENTICATIONBearer token · vault:readService ownervault-serviceContract sourceOpenAPISTATUSProduction listed

Purpose and usage

What this endpoint does

Return minimized metadata and integrity evidence for one object after enforcing ownership at the authoritative storage query. Versions, retention policy, grants, keys, and download authority are not yet published by this contract.

When to use it

Refresh one selected object's minimized metadata, readiness, presentation flags, and latest commitment-only evidence before a dependent workflow.

OUTCOME · Inspect

What changes

Read-only projection; it grants no mutation, settlement, traffic, or authority change.

WHY IT MATTERS

Gives people and agents a contract-backed way to inspect protected object.
Supports private object discovery and evidence selection while keeping content access, keys, grants, storage topology, and retention authority outside the listing contract.

ISOLATION + AUTHORITY

Tenant, workspace, object, directory, version, content, encryption key, storage location, retention policy, access grant, evidence commitment, and download authority remain distinct. Object discovery or integrity metadata does not reveal protected content, create a grant, authorize decryption, or prove an external business outcome.

BEFORE YOU CALL

Authenticate at the documented boundary: bearer+scope.
Supply the required object_uuid (path) exactly as defined by the live contract.
Resolve the authenticated workspace, opaque object identifier, object type, integrity requirement, and any separately authorized content-access or retention workflow.

WHAT TO DO NEXT

Follow the returned opaque object identifier to its detail or immediate-child operation without constructing storage paths or assuming recursive access.
Resolve any separate grant, version, retention, decryption, or download contract before requesting protected content or using the commitment externally.

AGENT GUIDANCE

Use protected object only for the purpose and lifecycle stage described by this operation; do not treat it as authority for an adjacent action.
Supply the required object_uuid (path) exactly as defined by the live contract.
Treat object existence, metadata readiness, directory membership, version, integrity commitment, access grant, decryption, download, retention, and external acceptance as separate lifecycle facts.
Use response links and canonical identifiers instead of constructing internal service URLs or scraping the website.

Contract reference

Use the deployed OpenAPI for exact parameters, schemas and security requirements. The tables below provide integration guidance.

Open this operation in OpenAPI

Request and response

Make the request

Examples illustrate integration intent; the referenced OpenAPI operation and component schemas define the executable shape.

PARAMETERS

Headers, path, query, and body

NAMELOCATIONPRESENCETYPE / RULES / PURPOSE

AuthorizationheaderRequired

Bearer tokenCredential containing the vault:read scope.EXAMPLEBearer hc_live_…

object_uuidpathRequired

32-character hexadecimal identifierStable object identifier returned by the Data Vault collection route.EXAMPLEf7a9ac7f9fbc4cba8d9cd95081288d63

STABLE ERROR CODES

Branch on the code, then follow the recovery action

These codes are published by the authoritative gateway contract for this endpoint. Treat message as safe diagnostic text; integrations should branch on code and HTTP status.

STATUSCODEMEANING

401invalid_credentialsThe bearer credential is missing, expired, or invalid.

403insufficient_scopeThe principal lacks owner-scoped Data Vault read authority.

404data_vault_object_not_foundThe object does not exist in the authenticated workspace.

422invalid_data_vault_objectThe object identifier is invalid.

422data_vault_request_rejectedOwner or workspace policy rejected the Data Vault request.

503data_vault_unavailableAuthoritative Data Vault metadata is temporarily unavailable.

RESPONSES

Status and payload examples

200One workspace-owned Data Vault object with minimized metadata and latest commitment-only evidence.Read completed · JSON RESPONSE+

{
  "object_id": "f7a9ac7f9fbc4cba8d9cd95081288d63",
  "name": "quarterly-reserve-evidence.json",
  "kind": "JSON",
  "size_bytes": 18432,
  "is_directory": false,
  "parent_object_id": null,
  "encrypted_content_root": "bafybeihybridchainencryptedcontentroot",
  "shard_count": 4,
  "storage_readiness": "READY",
  "favorite": true,
  "shared": false,
  "recycled": false,
  "created_at": "2026-09-01T18:30:00Z",
  "evidence": {
    "event_id": "64ab8439c82843ef91a0b83ec970927c",
    "event_commitment": "sha256:dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd",
    "anchor_state": "PENDING",
    "event_type": "FILE_UPLOADED",
    "recorded_at": "2026-09-01T18:30:01Z"
  }
}

INTEGRATION DECISION

CALLER ACTION: Accept the returned representation or receipt, then follow the returned opaque object identifier to its detail or immediate-child operation without constructing storage paths or assuming recursive access.
RETRY SAFETY: Repeat only when the integration needs a fresher authoritative projection.
STATE RECONCILIATION: Use returned identifiers and versions as the comparison point for later reads. Refresh vault metadata, classification, object commitment, retention version, grant state, and audit record; never infer access to encrypted payload bytes from metadata.

404The object does not exist in the authenticated workspace.Resource not visible · JSON RESPONSE+

{
  "code": "data_vault_object_not_found",
  "message": "The object does not exist in the authenticated workspace."
}

INTEGRATION DECISIONdata_vault_object_not_found

CALLER ACTION: Verify the canonical identifier and authenticated owner boundary. A 404 may intentionally conceal a resource outside the caller's authority.
RETRY SAFETY: Do not retry the unchanged identifier repeatedly. Refresh the relevant collection or lookup before choosing another identifier.
STATE RECONCILIATION: Refresh vault metadata, classification, object commitment, retention version, grant state, and audit record; never infer access to encrypted payload bytes from metadata.
ESCALATE WHEN: Escalate when ownership, grant, retention, classification, or commitment evidence cannot be reconciled without disclosing protected data.

422The object identifier is not canonical.Request must change · JSON RESPONSE+

{
  "code": "invalid_data_vault_object",
  "message": "The object identifier is not canonical."
}

INTEGRATION DECISIONinvalid_data_vault_object

CALLER ACTION: Rebuild the request from the live OpenAPI operation and correct the rejected method, media type, header, parameter, or body field.
RETRY SAFETY: Do not retry the same invalid request. A corrected read may be sent as a new attempt.
STATE RECONCILIATION: Compare the submitted values with the documented constraints before another call. Refresh vault metadata, classification, object commitment, retention version, grant state, and audit record; never infer access to encrypted payload bytes from metadata.
ESCALATE WHEN: Escalate when ownership, grant, retention, classification, or commitment evidence cannot be reconciled without disclosing protected data.

401The bearer credential is missing, expired, or invalid.Authentication required · JSON RESPONSE+

{
  "code": "invalid_credentials",
  "message": "The bearer credential is missing, expired, or invalid."
}

INTEGRATION DECISIONinvalid_credentials

CALLER ACTION: Discard the rejected credential, complete the documented authentication or reassertion flow, and rebuild any request signature with fresh timestamps and nonces.
RETRY SAFETY: Retry only with a newly valid credential and fresh replay-protection values. Do not replay an expired signature.
STATE RECONCILIATION: Authentication failed before an authoritative read was returned for owner-scoped vault metadata, data classifications, commitments, retention state, grants, and audit evidence.
ESCALATE WHEN: Escalate when ownership, grant, retention, classification, or commitment evidence cannot be reconciled without disclosing protected data.

403The credential lacks explicitly provisioned vault:read authority.Authority or policy denied · JSON RESPONSE+

{
  "code": "insufficient_scope",
  "message": "The credential lacks explicitly provisioned vault:read authority."
}

INTEGRATION DECISIONinsufficient_scope

CALLER ACTION: Verify the exact scope, tenant or workspace membership, owner boundary, step-up purpose, feature policy, and resource eligibility. Never broaden authority automatically.
RETRY SAFETY: Do not retry until the missing authority or policy condition has been deliberately resolved with least privilege.
STATE RECONCILIATION: Confirm the caller and resource resolve to the same authority boundary for owner-scoped vault metadata, data classifications, commitments, retention state, grants, and audit evidence.
ESCALATE WHEN: Escalate when ownership, grant, retention, classification, or commitment evidence cannot be reconciled without disclosing protected data.

503The authoritative Core Data Vault metadata projection is unavailable.Dependency unavailable or outcome uncertain · JSON RESPONSE+

{
  "code": "data_vault_unavailable",
  "message": "The authoritative Core Data Vault metadata projection is unavailable."
}

INTEGRATION DECISIONdata_vault_unavailable

CALLER ACTION: Treat the failure as transient and preserve the last known good representation without presenting it as fresh.
RETRY SAFETY: Retry with bounded exponential backoff and jitter; stop after the integration's failure budget is exhausted.
STATE RECONCILIATION: Refresh vault metadata, classification, object commitment, retention version, grant state, and audit record; never infer access to encrypted payload bytes from metadata.
ESCALATE WHEN: Escalate when ownership, grant, retention, classification, or commitment evidence cannot be reconciled without disclosing protected data.

OPERATIONAL NOTES

Security and lifecycle guarantees

Use this route to refresh one object's owner-visible name, kind, size, readiness, presentation flags, encrypted content root, and latest evidence posture before a dependent workflow.
A valid identifier belonging to another workspace is not disclosed. The owner check is part of the storage query, not a post-response filter.
evidence.event_commitment and anchor_state describe retained event evidence. They do not prove decryptability, public finality, sharing consent, download authority, or current possession on their own.
Versions, retention rules, grants, download tickets, upload completion, and deletion remain planned contracts. This read cannot create, share, decrypt, download, recycle, restore, or delete an object.

Reference version and availability details

This route is implemented in canonical gateway source and appears in the production OpenAPI snapshot observed 2026-10-02T23:27:55.510Z. Authentication, tenant, feature, venue, and market policy still apply.

Verify the exact production OpenAPI operation Return to the V2 directory