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Use the PROMPTonCHAIN REST API to create timestamped evidence records and retrieve their proof status. Authenticate every request with Authorization: Bearer YOUR_API_KEY.
API endpoints
API base URL: https://promptonchain.io/api
POST /v1/anchors creates an anchor from a SHA-256 fingerprint. Use the anchors:write scope and send Authorization: Bearer YOUR_API_KEY.
GET /v1/anchors/:request_id retrieves status and proof details. Use the anchors:read scope.
The complete request URLs are https://promptonchain.io/api/v1/anchors and https://promptonchain.io/api/v1/anchors/:request_id. The first five anchors are free.