INSERT INTO artifacts (id, unified_map_id, name, category, dynasty, level, material,
  current_status, home_institution_id, summary, story_hook, persona_quote, publish_status)
VALUES
  (
    'b0000000-0000-0000-0000-000000000001',
    'CN-2026-000001', '千里江山图', 'painting_calligraphy', '北宋', 'level_1',
    '绢本设色', 'at_home',
    'a0000000-0000-0000-0000-000000000001',
    '北宋青年画家王希孟创作的青绿山水长卷，纵51.5厘米，横1191.5厘米。',
    '18岁天才少年留下的唯一作品',
    '我只画了一次，但你们看了一千年。',
    'published'
  ),
  (
    'b0000000-0000-0000-0000-000000000002',
    'CN-2026-000002', '清明上河图', 'painting_calligraphy', '北宋', 'level_1',
    '绢本淡设色', 'at_home',
    'a0000000-0000-0000-0000-000000000001',
    '北宋画家张择端所作，生动记录了北宋都城汴京的繁华景象。',
    '一幅画藏着整个北宋汴京的烟火气',
    '画里每个人都有故事，你看懂了几个？',
    'published'
  ),
  (
    'b0000000-0000-0000-0000-000000000003',
    'CN-2026-000003', '司母戊鼎', 'bronze', '商代', 'level_1',
    '青铜', 'at_home',
    'a0000000-0000-0000-0000-000000000002',
    '商王祖庚或祖甲为祭祀母亲戊而铸造，是迄今已发现的最重青铜器。',
    '三千年前的青铜巨物，至今仍无人能复刻其铸造工艺',
    '我沉了三千年，终于等到你来看我。',
    'published'
  )
ON CONFLICT (id) DO NOTHING;

INSERT INTO artifact_locations (id, artifact_id, location_type, institution_id,
  public_location, precision, display_status, source_type, is_current, verified_at)
VALUES
  (
    'c0000000-0000-0000-0000-000000000001',
    'b0000000-0000-0000-0000-000000000001',
    'domestic', 'a0000000-0000-0000-0000-000000000001',
    ST_SetSRID(ST_MakePoint(116.3972, 39.9163), 4326)::geography,
    'exact_building', 'in_storage', 'institution_feed', true, NOW()
  ),
  (
    'c0000000-0000-0000-0000-000000000002',
    'b0000000-0000-0000-0000-000000000002',
    'domestic', 'a0000000-0000-0000-0000-000000000001',
    ST_SetSRID(ST_MakePoint(116.3972, 39.9163), 4326)::geography,
    'exact_building', 'on_display', 'institution_feed', true, NOW()
  ),
  (
    'c0000000-0000-0000-0000-000000000003',
    'b0000000-0000-0000-0000-000000000003',
    'domestic', 'a0000000-0000-0000-0000-000000000002',
    ST_SetSRID(ST_MakePoint(116.4074, 39.9052), 4326)::geography,
    'exact_building', 'on_display', 'institution_feed', true, NOW()
  )
ON CONFLICT (id) DO NOTHING;