# David科技测评 (@aiyangxin820) on douyin

- id: koinon:creator:douyin_aiyangxin820
- url: https://koinonlink.com/kol/douyin/aiyangxin820
- schema_version: 1.4

## Identity
- platform: douyin
- handle: aiyangxin820
- platform_url: https://www.douyin.com/user/MS4wLjABAAAA_X25gBz5R0t8FSnk1RMu--Hgy0R1F6xo3TtrgDxIt2Y
- country: China
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 1017993
- following: 1283
- posts_total: 56
- posts_observed: 4
- verified: true
- size_tier: kol

## Engagement
- status: peak_post_only
- peak_post_engagement_rate: 0.03572
- best_post_interactions: 36364
- measurement_source: cn_posts_max
- measurement_formula: likes + comments + shares (douyin) or likes + comments + collects (xiaohongshu), max over observed posts
- comparable_pool: peak_interactions
- status_note: We have only the single best observed post, so no mean exists. peak_post_engagement_rate is an UPPER BOUND, systematically higher than an average — never compare it against an average rate.
- unit_note: engagement_rate and peak_post_engagement_rate are ratios (0-1); avg_interactions_per_post and best_post_interactions are absolute counts. Read status before reading any number: a null rate has several different causes and status says which one applies here.

## Content
- category: software
- subcategory: martech
- category_confidence: 0.7
- category_source: derived_from_recent_content
- topics: 耳机/音频设备实测推荐, 空调和空气净化器选购, 智能手机和折叠屏评测, 洗衣机/洗烘一体机, 智能家居产品, 汽车/SUV评测
- bio: 商务V➕xj28287798
🙋聊点有趣的 测点有用的
✅带你体验「亲测好用」的数码好物和宝藏功能
📱数码测评｜玩机技巧｜前沿资讯｜智能家居

## Audience (inferred)
- status: present
- description: General consumers interested in electronics, home appliances, and smart home devices, mainly household users and individual buyers planning to purchase or upgrade their appliances and gadgets
- roles: consumer, general_ai
- seniority: consumer
- pain_points: Struggling to distinguish genuine product performance from marketing hype when choosing items like headphones, air conditioners, and washing machines, Worried about real-world issues like formaldehyde, air quality, and battery life during new home move-ins or appliance upgrades, Finding it hard to identify high-value, practical tech products due to information overload, Dissatisfied with细节 experiences such as wearing comfort, compatibility, and cleaning performance during daily use
- posts_analysed: 50
- confidence: 0.75

## Commercial (inferred)
- audience_buyer_fit: 0.8
- promotion_intent: 0.8
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 70
- authenticity_basis: engagement_observed
- credibility_score: 76
- flagged_for_review: false
- koinon_bd_grade: A — measures Koinon partner-outreach fit, not creator quality
- interpretation: Signals for triage, not verdicts. A flag means the profile is worth a manual check.

## Evidence
- [douyin_aiyangxin820#e0e1088e] 618耳机实测，开放式耳夹也有舒适佩戴+发烧音质！#南卡ClipSuper2#南卡耳夹式耳机#蓝牙耳机#耳夹式耳机#618耳机推荐 (https://www.douyin.com/user/MS4wLjABAAAA_X25gBz5R0t8FSnk1RMu--Hgy0R1F6xo3TtrgDxIt2Y)
- [douyin_aiyangxin820#55d7bce9] Light Inspirational Corporate
- [douyin_aiyangxin820#63172a4d] 个人观点，仅供参考
- [douyin_aiyangxin820#42f98ba5] 开箱与外观
- [douyin_aiyangxin820#b401cfad] 兼容性与佩戴体验
- [douyin_aiyangxin820#9d1cbcd9] 续航与全场景适用性
- [douyin_aiyangxin820#b337d474] 价格与优惠
- [douyin_aiyangxin820#98209616] 温柔送风，夜夜好眠~#格力云锦Pro挂机#格力云锦Pro空调#真正强大的四季空调#618买格力好品质一步到位

## Provenance
Every inferred field below carries how it was produced. Facts stay facts; inferences stay inferences.

- audience.description: source_type=ai_inferred, confidence=0.75, freshness_days=84, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.75, freshness_days=84, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.75, freshness_days=84, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=85, method=llm_scorer — Relative signal within Koinon indexing, not a market-wide score.
- commercial.promotion_intent: source_type=ai_inferred, confidence=0.6, freshness_days=85, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=107, method=profile_snapshot_and_engagement_ratio_heuristic — Means "worth a manual check", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person.
- quality.authenticity_score: source_type=heuristic, confidence=0.5, freshness_days=85, method=Starts at 60; interactions-per-follower on collected posts then adds or subtracts (large following with near-zero engagement is penalised heavily). — The input set differs by platform; do not compare this score across platforms.
- quality.koinon_bd_grade: source_type=ai_inferred, confidence=0.5, freshness_days=107, method=llm_partner_fit_classifier + authenticity >= 55 AND fit_score >= 0.45 => A; authenticity >= 40 AND fit_score >= 0.3 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=107, method=platform_profile

## Freshness
- profile_checked_days_ago: 107
- content_analysed_days_ago: 85
- audience_updated_days_ago: 84

## AI retrieval
- indexing_requests: 8
- user_triggered_requests: 0
- note: Being indexed in bulk is not the same as being retrieved to answer a question.

## This profile
- Claim or correct: https://koinonlink.com/claim?k=douyin_aiyangxin820
- Request removal: https://koinonlink.com/claim?k=douyin_aiyangxin820
- Terms: https://koinonlink.com/for-ai