{"version":"1.0","type":"card","id":"87c3c690-235b-45c1-8d5d-e7b86d31b452","url":"https://stacklist.com/card/87c3c690-235b-45c1-8d5d-e7b86d31b452","title":"Mailbox No.4","source_url":null,"note":"Step-by-step guide to building a mailbox base with RumbleStone® blocks, with a 17.5\" W x 21\" H stone base built mainly from large blocks with a mini block cap around a 4x4 mailbox post. Includes a full piece count with Home Depot SKUs for Café, Sierra Blend, and GreyStone colors, and an 8-step visual build sequence.\n","image":{"url":"https://ucarecdn.com/1f954b8c-1bb5-43ac-b217-8ba580dcaada/","alt":"Mailbox No.4","width":2880,"height":1800},"stack":{"id":"48af2fdd-a34c-4257-a0fc-5f7790da4b23","title":"RumbleStone","url":"https://stacklist.com/stack/48af2fdd-a34c-4257-a0fc-5f7790da4b23"},"created_at":"2026-07-16T15:34:11.805Z","updated_at":null,"aco":{"summary":"Mailbox No. 4 is a RumbleStone project building instruction guide for constructing a decorative mailbox post using stacked stone blocks. The project measures 21\" H x 17.5\" W and includes material specifications, piece counts, and step-by-step assembly instructions with bilingual English-Spanish content.","tags":["rumblestone","mailbox","diy-project","building-instructions","landscape-design","construction","home-improvement"],"key_entities":[{"name":"RumbleStone","type":"technology","confidence":0.95},{"name":"Home Depot","type":"organization","confidence":0.9},{"name":"construction adhesive","type":"concept","confidence":0.85},{"name":"mailbox post","type":"concept","confidence":0.8}],"classification":"tutorial","language":"en","confidence":0.85,"provenance":{"model":"claude-haiku-4-5","tool":"@stacklist/be@0.1.0","confidence":0.85,"timestamp":"2026-09-23T10:40:07.350Z"},"token_counts":{"approximate":279,"cl100k":336},"content_hash":"sha256:671d5ee91c7692c9ce108ae43e0375bef043abfcd45eb80426f8c8e7c9663ee4","acp_version":"0.2","body_available":true,"body_tokens":279,"visibility":"public","agent_accessible":true,"status":"final"},"_links":{"self":"/api/public/card/87c3c690-235b-45c1-8d5d-e7b86d31b452.json","html":"https://stacklist.com/card/87c3c690-235b-45c1-8d5d-e7b86d31b452","md":"/api/public/card/87c3c690-235b-45c1-8d5d-e7b86d31b452.md","stack_json":"/api/public/stack/48af2fdd-a34c-4257-a0fc-5f7790da4b23.json"}}