WritersLogic Verifiable AI Agent Hub Anchoring API
Transparency log anchoring with Merkle inclusion proofs
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curl "https://apis.io/api/v1/apis/writerslogic-com:writerslogic-com-anchoring-api"
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OpenAPI Specification
openapi: 3.2.0
info:
title: WritersProof Anchoring API
version: 1.0.0
description: Certificate Authority and verification API for the Proof-of-Effort protocol. Certify, verify, and prove human authorship.
contact:
name: WritersLogic LLC
url: https://writersproof.com
license:
name: SSPL-1.0
url: https://www.mongodb.com/licensing/server-side-public-license
servers:
- url: https://api.writersproof.com
description: Production
- url: https://api.writerslogic.com
description: Legacy
tags:
- name: Anchoring
description: Transparency log anchoring with Merkle inclusion proofs
paths:
/v1/anchor:
post:
tags:
- Anchoring
operationId: anchorEvidence
summary: Anchor evidence hash
description: Append an evidence hash to the Merkle transparency log. Returns a signed tree head and inclusion proof.
security:
- bearerAuth: []
requestBody:
required: true
content:
application/json:
schema:
$ref: '#/components/schemas/AnchorRequest'
responses:
'201':
description: Evidence anchored
content:
application/json:
schema:
$ref: '#/components/schemas/AnchorResponse'
'400':
$ref: '#/components/responses/ValidationError'
'401':
$ref: '#/components/responses/Unauthorized'
'403':
description: Signature verification failed
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
'429':
description: Transparency log busy, retry
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/anchor/sth:
get:
tags:
- Anchoring
operationId: getSignedTreeHead
summary: Get latest signed tree head
description: Return the latest signed tree head from the transparency log. Public endpoint.
security: []
responses:
'200':
description: Signed tree head
content:
application/json:
schema:
type: object
properties:
tree_size:
type: integer
root_hash:
type: string
signature:
type: string
timestamp:
type: string
format: date-time
public_key:
type: string
description: Hex-encoded Ed25519 public key
/v1/anchor/proof:
get:
tags:
- Anchoring
operationId: getInclusionProof
summary: Get inclusion proof
description: Compute a Merkle inclusion proof for a given log index. Public endpoint.
security: []
parameters:
- name: log_index
in: query
required: true
schema:
type: integer
minimum: 1
description: 1-based log index
responses:
'200':
description: Inclusion proof
content:
application/json:
schema:
type: object
properties:
log_index:
type: integer
leaf_hash:
type: string
tree_size:
type: integer
root_hash:
type: string
inclusion_proof:
type: array
items:
type: string
'400':
$ref: '#/components/responses/ValidationError'
'404':
description: Log index not found
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
/v1/anchor/verify:
get:
tags:
- Anchoring
operationId: verifyAnchor
summary: Verify anchored evidence
description: Verify that an evidence hash is anchored in the transparency log and return the inclusion proof. Also supports legacy blockchain verification via tx or contentHash query parameters.
security: []
parameters:
- name: evidence_hash
in: query
required: false
schema:
type: string
pattern: ^[0-9a-f]{64}$
description: SHA-256 evidence hash (64-char hex)
- name: tx
in: query
required: false
schema:
type: string
description: 'Legacy: blockchain transaction hash'
- name: contentHash
in: query
required: false
schema:
type: string
description: 'Legacy: content hash'
responses:
'200':
description: Verification result
content:
application/json:
schema:
type: object
properties:
verified:
type: boolean
type:
type: string
enum:
- transparency_log
- blockchain
anchor:
type: object
message:
type: string
'400':
$ref: '#/components/responses/ValidationError'
components:
schemas:
Error:
type: object
properties:
error:
type: string
required:
- error
AnchorResponse:
type: object
properties:
anchorId:
type: string
format: uuid
timestamp:
type: string
format: date-time
assuranceTier:
type: string
enum:
- T1
- T2
logIndex:
type: integer
inclusionProof:
type: array
items:
type: string
signedTreeHead:
type: object
properties:
treeSize:
type: integer
rootHash:
type: string
signature:
type: string
AnchorRequest:
type: object
required:
- evidenceHash
- authorDid
- signature
properties:
evidenceHash:
type: string
pattern: ^[0-9a-f]{64}$
description: SHA-256 hash of the evidence packet
authorDid:
type: string
maxLength: 256
signature:
type: string
pattern: ^[0-9a-f]{128}$
description: 128-char hex Ed25519 signature
metadata:
type: object
properties:
documentName:
type: string
tier:
type: string
responses:
ValidationError:
description: Request validation failed
content:
application/json:
schema:
type: object
properties:
error:
type: string
example: Validation failed
details:
type: array
items:
type: string
Unauthorized:
description: Authentication required
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
securitySchemes:
bearerAuth:
type: http
scheme: bearer
bearerFormat: JWT
description: Supabase JWT token
apiKeyAuth:
type: apiKey
in: header
name: X-API-Key
description: API key with wp_sk_ prefix