generated: '2026-08-02' method: derived source: openapi/polysign-atomicnet-api-server-openapi.json, openapi/polysign-merchant-gate-openapi.json, openapi/polysign-abc-proxy-service-openapi.json standards: - id: openapi-3.0.3 conforms: true evidence: 'all three published documents declare openapi: 3.0.3' - id: oauth2 conforms: true evidence: 'components.securitySchemes.OAuth2 type oauth2, clientCredentials flow, tokenUrl /v1/auth/token, applied globally via security: [{OAuth2: [participant]}]' - id: rfc6749-client-credentials conforms: true evidence: POST /v1/auth/token accepts application/x-www-form-urlencoded grant_type=client_credentials&scope=participant and returns access_token/token_type/expires_in/scope - id: rfc6750-bearer-token conforms: true evidence: token response returns token_type; OAuth2 bearer credentials issued by the PolySign-hosted token endpoint - id: rfc6749-error-response conforms: true evidence: 401 on POST /v1/auth/token returns the OAuth 2.0 {error, error_description} envelope - id: openidconnect conforms: false evidence: no openIdConnect security scheme and no /.well-known/openid-configuration (404 on both hosts); an optional id_token field appears in the token response but no OIDC discovery is published - id: rfc9457-problem-details conforms: false evidence: no application/problem+json media type in any of the three documents - id: rfc9116-security-txt conforms: false evidence: /.well-known/security.txt returned 404 on www.polysign.io and docs.polynet.sandbox.polysign.io - id: rfc8594-sunset-header conforms: false evidence: no Sunset or Deprecation response headers declared - id: rfc8615-well-known conforms: false evidence: no /.well-known/ document served on any PolySign host - id: idempotency-key conforms: false evidence: no Idempotency-Key header parameter in any operation; state-changing writes use PUT with a client-supplied record identifier instead - id: pagination conforms: false evidence: list operations expose status/role filters only — no limit/offset/cursor/page parameters and no pagination envelope - id: asyncapi conforms: false evidence: no event, webhook or streaming surface documented; status changes are polled via the *_status_updates operations - id: nydfs-part200 conforms: null evidence: PolySign subsidiary Standard Custody & Trust Company held a NYDFS limited purpose trust charter; this is a corporate licence claim, not a property of the published API contracts. Not asserted here. note: Derived from the harvested specs and live probes only. No compliance/certification program (SOC 2, ISO 27001, PCI DSS) is published on a PolySign host, so no Compliance pointer is wired.