# Shirt Startup (@Shirtstartup) on youtube

- id: koinon:creator:youtube_shirtstartup
- url: https://koinonlink.com/kol/youtube/Shirtstartup
- schema_version: 1.4

## Identity
- platform: youtube
- handle: Shirtstartup
- platform_url: https://www.youtube.com/@Shirtstartup
- country: United States
- entity_type: creator
- person_id: Cross-platform identity not resolved for this creator.

## Reach
- followers: 9570
- posts_observed: 1
- verified: false
- size_tier: nano

## Engagement
- status: not_collected
- 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
- category: ecommerce
- subcategory: dtc_brand
- category_confidence: 0.95
- category_source: derived_from_recent_content
- topics: DIY heat press and custom shirt printing tutorials, Starting and grinding a T-shirt small business, Making team/school and niche custom apparel, Wholesale blank sourcing and business basics, Mindset and motivation for entrepreneurs
- bio: Shirt Start Up is your go-to channel for learning how to start a T-shirt business from home. Whether you're a stay-at-home parent, ...

## Audience (inferred)
- status: present
- description: Home-based custom T-shirt business owners and side hustlers, often stay-at-home parents or small apparel entrepreneurs
- roles: ecom_ops
- seniority: practitioner
- pain_points: Sourcing cheap blank T-shirts without a reseller license, Mastering heat press, DTF and plastisol techniques for quality results, Finding profitable niches like school teams or memorial shirts, Scaling a home-based apparel side hustle with limited resources
- posts_analysed: 18
- confidence: 0.6

## Commercial (inferred)
- audience_buyer_fit: 0.9
- promotion_intent: 0.8
- open_to_collaboration: false
- contact: Koinon does not publish creator contact details.

## Quality signals
- authenticity_score: 44
- authenticity_basis: profile_shape_only
- credibility_score: 44
- flagged_for_review: false
- koinon_bd_grade: C — 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
- [youtube_shirtstartup#6559f9e8] DIY Making a “Fall for Jesus” T-Shirt | Heat Press (https://www.youtube.com/@Shirtstartup)
- [youtube_shirtstartup#2510c51f] ✝️ Making a “Jesus Is My Hero” T-Shirt 🙌 | Custom Heat Press Shirt
- [youtube_shirtstartup#f4aab9a5] DTF Transfer + Heat Press = Selena Tee 🔥👕
- [youtube_shirtstartup#8cf708bc] Custom Shirt | I am Stronger Than the Storm  #shorts
- [youtube_shirtstartup#99cc51fe] Custom K-Pop Shirt DIY (Demon Hunter Edition) 🎶🔥 #shorts
- [youtube_shirtstartup#5f2340d0] Making Custom Jerseys for Your School Team ⚽️🏈
- [youtube_shirtstartup#ef2ad702] Small Business Grind | Labels = Growth
- [youtube_shirtstartup#8b87ce9c] Making Custom Shirts for Elementary School ✨ 👕

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

- audience.description: source_type=ai_inferred, confidence=0.6, freshness_days=67, method=llm_persona_from_recent_content
- audience.roles: source_type=ai_inferred, confidence=0.6, freshness_days=67, method=llm_persona_from_recent_content
- audience.seniority: source_type=ai_inferred, confidence=0.6, freshness_days=67, method=llm_persona_from_recent_content
- commercial.audience_buyer_fit: source_type=ai_inferred, confidence=0.6, freshness_days=67, 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=67, method=llm_scorer
- quality.anomaly_flags: source_type=heuristic, confidence=0.5, freshness_days=67, 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=0.25, freshness_days=67, 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. — 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=67, 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. — Koinon partner-outreach fit, not creator quality.
- reach.followers: source_type=observed, confidence=0.95, freshness_days=67, method=platform_profile

## Freshness
- profile_checked_days_ago: 67
- content_analysed_days_ago: 67
- audience_updated_days_ago: 67

## AI retrieval
- indexing_requests: 11
- 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=youtube_shirtstartup
- Request removal: https://koinonlink.com/claim?k=youtube_shirtstartup
- Terms: https://koinonlink.com/for-ai