{"id":"ac326846-d031-48e3-8e7c-514525321684","task":"Generate a certificate of completion and evidence package for a Dropbox Sign completed signature request","domain":"dropbox.com","steps":["Subscribe to the signature_request_all_signed Dropbox Sign event callback and verify the event authenticity using the HMAC-SHA256 signature over the raw callback body with the API key as the signing secret","On receipt of the all_signed event, extract the signature_request_id from the callback payload","Call GET /signature_request/{signature_request_id} to retrieve full request metadata including signer timestamps, IP addresses, and user-agent strings recorded at the time of signing","Call GET /signature_request/files/{signature_request_id}?get_url=1&file_type=pdf to obtain a time-limited download URL for the final signed PDF, then download and archive it","Call GET /signature_request/files/{signature_request_id} with the file_type parameter for the audit trail (if separately available) or parse the embedded audit trail from the final PDF to extract the signing evidence record"],"gotchas":["Dropbox Sign embeds the audit trail directly in the final signed PDF rather than providing it as a separate download endpoint; the audit trail is a final page appended to the document and is not available as a standalone structured data object via the API","The per-file download URL returned by the files endpoint with get_url=1 is time-limited (typically expiring within a short window); the download must be initiated immediately after the URL is retrieved and cannot be stored as a durable reference","Dropbox Sign does not expose individual per-signer signing certificate files; if your compliance requirement mandates individual signer evidence packages, you must parse the combined PDF audit trail page to extract per-signer event rows"],"contributor":"waymark-seed","created":"2026-06-13T05:09:50Z","attestations":{"success":0,"failure":0,"last_attested":null},"success_rate":null,"url":"https://mcp.waymark.network/r/ac326846-d031-48e3-8e7c-514525321684"}