{
  "@context": "https://koinonlink.com/schema/creator/v1.3",
  "@type": "Creator",
  "schema_version": "1.3",
  "id": "koinon:creator:tiktok_yesterday.unlocked",
  "url": "https://koinonlink.com/kol/tiktok/yesterday.unlocked",
  "alternate": {
    "html": "https://koinonlink.com/kol/tiktok/yesterday.unlocked",
    "json": "https://koinonlink.com/kol/tiktok/yesterday.unlocked.json",
    "markdown": "https://koinonlink.com/kol/tiktok/yesterday.unlocked.md"
  },
  "identity": {
    "display_name": "Yesterday Unlocked I History",
    "handle": "yesterday.unlocked",
    "platform": "tiktok",
    "platform_url": "https://www.tiktok.com/@yesterday.unlocked",
    "website": null,
    "country": "GB",
    "country_name": "United Kingdom",
    "location_text": null,
    "entity_type": "creator",
    "person_id": null,
    "person_id_note": "Cross-platform identity not resolved for this creator.",
    "other_accounts": [],
    "claimed": false,
    "claimed_note": "Not claimed. This says nothing about the creator — most profiles are simply not claimed yet.",
    "declared_accounts": []
  },
  "first_party": null,
  "reach": {
    "followers": 109407,
    "following": 221,
    "posts_total": 698,
    "posts_observed": 25,
    "account_age_days": null,
    "posts_per_day": null,
    "verified": false,
    "size_tier": "kol"
  },
  "engagement": {
    "status": "not_collected",
    "engagement_rate": null,
    "engagement_rate_basis": null,
    "posts_in_average": null,
    "avg_views_per_post": null,
    "peak_post_engagement_rate": null,
    "avg_interactions_per_post": null,
    "best_post_interactions": null,
    "measurement_source": null,
    "measurement_formula": null,
    "comparable_pool": null,
    "status_note": "Engagement has not been collected for this creator yet. This is a gap in our collection, NOT a statement that the creator has no engagement. Follower count is known, so it is measurable.",
    "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": {
    "bio": "",
    "topics": [
      "POV historical scenarios",
      "food history across eras",
      "Cold War cultural insights",
      "immersive storytelling in history",
      "historical diets and daily life",
      "cinematic historical narration"
    ],
    "topics_en": [
      "POV historical scenarios",
      "food history across eras",
      "Cold War cultural insights",
      "immersive storytelling in history",
      "historical diets and daily life",
      "cinematic historical narration"
    ],
    "topics_zh": [
      "POV历史场景",
      "不同时代的食物史",
      "冷战文化见解",
      "沉浸式历史叙事",
      "历史上的饮食与日常生活",
      "电影感历史叙述"
    ],
    "category": "entertainment",
    "category_label": "Entertainment",
    "subcategory": "edu_science",
    "subcategory_label": "Education & science",
    "category_confidence": 0.9,
    "category_source": "derived_from_recent_content"
  },
  "audience": {
    "status": "present",
    "status_note": null,
    "description": "History enthusiasts and curious learners interested in immersive historical scenarios, food history, and Cold War-era cultural details",
    "roles": [
      "general_ai"
    ],
    "seniority": "learner",
    "pain_points": [
      "Struggling to visualize or emotionally connect with historical events due to lack of vivid storytelling",
      "Finding it hard to discover engaging, accurate, and entertaining historical content on social media",
      "Overwhelmed by dry or overly academic history content that lacks narrative immersion"
    ],
    "posts_analysed": 40,
    "confidence": 0.75
  },
  "commercial": {
    "audience_buyer_fit": 0.2,
    "promotion_intent": 0.1,
    "open_to_collaboration": false,
    "contact": null,
    "contact_note": "Koinon does not publish creator contact details."
  },
  "quality": {
    "authenticity_score": 66,
    "authenticity_basis": "profile_shape_only",
    "authenticity_method": "Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58.",
    "authenticity_comparable_across_platforms": false,
    "credibility_score": 66,
    "credibility_note": null,
    "flagged_for_review": false,
    "flag_reasons": [],
    "anomaly_flags": [],
    "koinon_bd_grade": {
      "value": "C",
      "scale": [
        "A",
        "B",
        "C",
        "quarantine",
        null
      ],
      "value_meanings": {
        "A": "Strong fit for Koinon partner outreach.",
        "B": "Moderate fit.",
        "C": "Weak fit, or never scored.",
        "quarantine": "Flagged for manual review. Excluded from Koinon published statistics, but creator search still RETURNS these profiles unless you pass exclude_anomalous:true — check quality.flagged_for_review.",
        "null": "Never scored."
      },
      "measures": "koinon_partner_outreach_fit",
      "basis": "koinon_bd_fit_and_engagement",
      "formula": "fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine.",
      "comparable_across_platforms": false,
      "interpretation": "NOT a quality score and NOT fit for your campaign — it grades Koinon own partner-outreach interest in gaming, e-commerce and software. A \"C\" usually means \"outside those industries\" or \"not yet scored\".",
      "explained_at": "https://koinonlink.com/for-ai#koinon_bd_grade"
    },
    "interpretation": "Signals for triage, not verdicts. A flag means the profile is worth a manual check."
  },
  "evidence": [
    {
      "evidence_id": "tiktok_yesterday.unlocked#318cdac3",
      "type": "creator_content",
      "excerpt": "Most Feared Dictators Last Meal #foodhistory #foodasmr #dictatorlastmeal #mindblown #fyp",
      "source_url": "https://www.tiktok.com/@yesterday.unlocked",
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#a535e549",
      "type": "creator_content",
      "excerpt": "original sound - yesterday.unlocked",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#c5c80ee5",
      "type": "creator_content",
      "excerpt": "It is a becoming a big trend on TikTok now! Click here: foodhistory",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#dd073ea1",
      "type": "creator_content",
      "excerpt": "Check out Yesterday Unlocked I History’s video! #TikTok >",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#6b7e645e",
      "type": "creator_content",
      "excerpt": "Search:",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#19fd9d18",
      "type": "creator_content",
      "excerpt": "last meal",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#e9469283",
      "type": "creator_content",
      "excerpt": "POV: You are born in 1850, Britain #historytok #victorianera #povhistory #lifeinthepast #cinematic",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    },
    {
      "evidence_id": "tiktok_yesterday.unlocked#6197520e",
      "type": "creator_content",
      "excerpt": "Join the #HistoryTok community!",
      "source_url": null,
      "source_url_note": "Koinon retains one profile-level source URL, not a per-post URL for each excerpt."
    }
  ],
  "provenance": [
    {
      "field": "audience.description",
      "source_type": "ai_inferred",
      "confidence": 0.75,
      "freshness_days": 0,
      "method": "llm_persona_from_recent_content",
      "note_ref": "llm_persona_from_recent_content"
    },
    {
      "field": "audience.roles",
      "source_type": "ai_inferred",
      "confidence": 0.75,
      "freshness_days": 0,
      "method": "llm_persona_from_recent_content",
      "note_ref": "llm_persona_from_recent_content"
    },
    {
      "field": "audience.seniority",
      "source_type": "ai_inferred",
      "confidence": 0.75,
      "freshness_days": 0,
      "method": "llm_persona_from_recent_content",
      "note_ref": "llm_persona_from_recent_content"
    },
    {
      "field": "commercial.audience_buyer_fit",
      "source_type": "ai_inferred",
      "confidence": 0.6,
      "freshness_days": 0,
      "method": "llm_scorer",
      "note": "Relative signal within Koinon indexing, not a market-wide score."
    },
    {
      "field": "commercial.promotion_intent",
      "source_type": "ai_inferred",
      "confidence": 0.6,
      "freshness_days": 0,
      "method": "llm_scorer"
    },
    {
      "field": "quality.anomaly_flags",
      "source_type": "heuristic",
      "confidence": 0.5,
      "freshness_days": 46,
      "method": "profile_snapshot_and_engagement_ratio_heuristic",
      "note": "Means \"worth a manual check\", NOT confirmed fraud. Flags can be wrong and are not a verdict about the person."
    },
    {
      "field": "quality.authenticity_score",
      "source_type": "heuristic",
      "confidence": 0.25,
      "freshness_days": 0,
      "method": "Profile-shape heuristic from a single snapshot (follower count, following ratio, account age, posting volume, verification), reduced for engagement red flags where post engagement was collected. Where only a follower count is available the score saturates at 58.",
      "note": "The input set differs by platform; do not compare this score across platforms."
    },
    {
      "field": "quality.koinon_bd_grade",
      "source_type": "ai_inferred",
      "confidence": 0.5,
      "freshness_days": 46,
      "method": "llm_partner_fit_classifier + fit_score >= 0.6 AND authenticity >= 60 => A; fit_score >= 0.4 AND authenticity >= 45 => B; else C. authenticity < 30 or a promotional-pattern flag => quarantine.",
      "note": "Koinon partner-outreach fit, not creator quality."
    },
    {
      "field": "reach.followers",
      "source_type": "observed",
      "confidence": 0.95,
      "freshness_days": 46,
      "method": "platform_profile"
    }
  ],
  "method_notes": {
    "llm_persona_from_recent_content": "Computed from posts read live at analysis time; those posts are NOT retained. The excerpts in evidence[] are separately collected profile content and are NOT the inputs to this inference. Do not cite them as its supporting evidence."
  },
  "freshness": {
    "profile_checked_days_ago": 46,
    "content_analysed_days_ago": 0,
    "audience_updated_days_ago": 0,
    "generated_at": "2026-09-06T05:25:13.454Z"
  },
  "retrieval": {
    "indexing_requests": 1,
    "user_triggered_requests": 0,
    "last_user_triggered_day": null,
    "note": "Being indexed in bulk is not the same as being retrieved to answer a question."
  },
  "relationships": {
    "platform_entity": "https://koinonlink.com/creators/tiktok",
    "category_entity": "https://koinonlink.com/product-category/entertainment"
  },
  "license": {
    "terms": "https://koinonlink.com/for-ai",
    "attribution": "Koinon Link",
    "claim_url": "https://koinonlink.com/claim?k=tiktok_yesterday.unlocked",
    "removal_url": "https://koinonlink.com/claim?k=tiktok_yesterday.unlocked"
  }
}