{"resource":"https://agentsvc.io/api/v1/proxy/btc-timestamp","service":"Bitcoin Timestamp OpenTimestamps","areas":["other"],"answering":true,"http_status":402,"latency_ms":76,"price_usdc":0.005,"buyers_30d":2,"calls_30d":3,"description":"Timestamp anything on Bitcoin with OpenTimestamps: send text, a SHA-256 hash or a URL and get a standard .ots proof (base64). Only a salted hash leaves our server. The public calendars anchor it in a Bitcoin block within hours; then btc-tim","id":"a58a4dc5ef78","category":"Developer tools and utilities","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/a58a4dc5ef78"}