{"slug":"touchstone-locomot-io-random-proof-959d8f","title":"Provably-fair draw from the drand beacon with the full verifiable receipt + nonc","host":"touchstone.locomot.io","method":"GET","resource":"https://touchstone.locomot.io/random/proof","category":"other","description":"Provably-fair draw from the drand beacon with the full verifiable receipt + nonce-binding (the free draw is at GET /random).","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":577,"reported_calls_30d":3,"reported_payers_30d":3,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"items":"alice,bob,carol,dave","k":1,"nonce":"raffle-1","op":"pick"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"properties":{"count":{"type":"integer"},"dice":{"description":"e.g. 3d6","type":"string"},"items":{"description":"comma list or JSON array","type":"string"},"k":{"type":"integer"},"max":{"type":"integer"},"min":{"type":"integer"},"n":{"type":"integer"},"nonce":{"description":"bind the draw to your context","type":"string"},"op":{"description":"draw type; default int","enum":["int","dice","coin","bytes","uuid","shuffle","sample","choice","pick"],"type":"string"},"round":{"description":"pin a drand round (reproducible)","type":"integer"},"sides":{"type":"integer"},"weights":{"type":"string"}},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"beacon":{"type":"object"},"deterministic_given_round":{"type":"boolean"},"draw":{"type":"string"},"engine":{"type":"string"},"nonce":{"type":"string"},"notation":{"type":"string"},"op":{"type":"string"},"proof":{"type":"object"},"rolls":{"type":"array"},"total":{"type":"integer"}},"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":577,"error":null}],"description_full":"Provably-fair draw from the drand beacon with the full verifiable receipt + nonce-binding (the free draw is at GET /random).","last_updated":"2026-09-17T03:24:14.028Z","schemes":["exact"]}