{"id": "card_chart_zeta", "kind": "reference", "title": "The zeta function", "body": "The zeta function. A chart on the one map: this is the tick stick stick_the_zeta_function, placed at the node it charts. Basis: the stick seals zeta(2) = pi^2/6 (Basel) and the functional equation - the object the Riemann question is about. The stick keeps its seals (read live at /stick?id=stick_the_zeta_function); this card is a cited pointer, not a copy. Found, never generated.", "source": {"label": "Narrow Highway - a chart: a tick stick placed on the one map", "url": "", "ref": "stick_the_zeta_function", "authority_tier": "engine_derived"}, "shelf": "codex", "box": "chart", "bands": ["chart", "stick", "two trees", "one map", "zeta"], "subject": "The zeta function", "connections": [{"to_card_id": "card_question_riemann", "relationship": "charts", "evidence": "the stick seals zeta(2) = pi^2/6 (Basel) and the functional equation - the object the Riemann question is about"}, {"to_card_id": "card_spine_charts", "relationship": "member_of", "evidence": "a chart on the one map"}], "author": "engine", "created_at": 0.0, "updated_at": 0.0, "visibility": "public", "lifecycle_stage": "public", "volatility": "permanent", "surface": "secular", "generated": false, "call": "codex.chart", "facets": {"subject": ["one map", "stick", "two trees", "zeta"]}, "presentation": {"glyph": "•", "kind_label": "chart", "by": "Narrow Highway - a chart: a tick stick placed on the one map", "authority": "engine_derived", "posted": "", "standing": ""}, "neighbors": [{"id": "card_question_riemann", "title": "The Riemann hypothesis", "relationship": "charts", "why": "the stick seals zeta(2) = pi^2/6 (Basel) and the functional equation - the object the Riemann question is about", "href": "/card/card_question_riemann", "resolved": true}, {"id": "card_spine_charts", "title": "The charts — the sticks on the one map", "relationship": "on the shelf of", "why": "a chart on the one map", "href": "/card/card_spine_charts", "resolved": true}], "house": {"door": "FIND", "kind": "card", "trail": "connections", "seal": "/card/card_chart_zeta", "next_step": {"do": "follow a connection: what this card rests on, and what rests on it", "door": "FIND", "tool": "card_connections", "params": {"id": "card_chart_zeta"}}, "ends": "a verdict or a card · the trail · a seal · one next step"}}