全部主张 / 航海、天文与测量
郑和宝船是钢铁制造的船
判定边界
双方证据链未闭合（本轮），不是双方等真，也不是给视频主张背书。
视频原话摘要
是钢铁船
- 领域
- shipbuilding
- 涉及对象
- 郑和宝船
- 声称年代
- 明代；永乐年间
- 话语角色
- 作者主张
证据连接
来源记录
SRCREF:R005-HMAIN-F5:SRC-F5-AAS-SIZESRCREF:R005-HMAIN-F5:SRC-F5-CHURCH-PLAUSIBILITYSRCREF:R005-HMAIN-F5:SRC-F5-NANJING-YARDSRCREF:R005-HMAIN-F5:SRC-F5-UNESCO-JUNKSRCREF:R005-HVIDEO-F5:S-F5-02SRCREF:R005-HVIDEO-F5:S-F5-10SRCREF:R005-HVIDEO-F5:S-F5-11SRCREF:R005-HVIDEO-F5:S-F5-12
待解问题
报告锚点：S05.5 · 研究 lane：F5_MARITIME_ASTRO
双轨条件矩阵
H_VIDEO 与 H_MAIN 独立列出必要条件、正向预测、反证条件、替代机制、形成链和协调伪造规模。
| 模型 | 条件类型 | 条件 | 评估 | 关联证据 |
|---|---|---|---|---|
| H_VIDEO | necessary_condition | 须有明代郑和宝船船体使用钢铁板材或钢结构的直接记录/遗物；冶金能力不能单独替代船体证据 | input_limited | |
| H_VIDEO | positive_prediction | 船体板材、铆接结构、生产记录或材料分析与日期/对象相符 | input_limited | |
| H_VIDEO | disconfirmer | 近代铁壳船的年代与工艺记录；古代冶金证据只证明能炼铁/钢，不证明造钢船 | input_limited | |
| H_VIDEO | alternative_mechanism | 铁制工具或紧固件；木船铁件；后世图片或伪引文 | input_limited | |
| H_VIDEO | formation_chain | “钢铁船”→板材/骨架→工艺→年代与对象 | input_limited | |
| H_VIDEO | fabrication_or_coordination_scope | none;不可把一般技术潜势直接升级为历史事实 | input_limited | |
| H_MAINSTREAM | necessary_condition | the claim must specify steel hull versus iron fittings; material analysis and manufacturing technology must be tied to a fifteenth-century vessel; provenance and custody must be recorded | input_limited | |
| H_MAINSTREAM | positive_prediction | object-level metallurgical evidence or a contemporary construction record should identify a steel hull | input_limited | |
| H_MAINSTREAM | disconfirmer | wooden shipyard components, iron tools/anchors/nails without hull attribution, or later construction would disconfirm the exact claim | input_limited | |
| H_MAINSTREAM | alternative_mechanism | wooden hull with iron hardware; steel in a later replica; “iron” translated as “steel”; modern visual inference | input_limited | |
| H_MAINSTREAM | formation_chain | FC-F5-C04 | input_limited | |
| H_MAINSTREAM | fabrication_or_coordination_scope | not_required_by_claim_logic | not_applicable_by_claim_logic |
推理桥梁
H_VIDEOotherinput_limited
古代会炼钢→造出郑和钢船
H_MAINSTREAMotherinput_limited
metal object→hull role→metallurgy/date→treasure-ship identity
审计字段与说明
- 终态方法
- dual_track_evidence
- 音频核验
- two_asr_surface_agreement
- 研究备注
- 冻结命题与矩阵终态逐 ID 对齐；非事实 lane 不转写为历史胜负。