Seller profile
421b1e2ebc54
✓ Verified revenue farm patterns
Address 0x421b…a89e
· chain: Base · first paid transaction 2026-09-23 · a published verified seller outside the top 50
Revenue is attributed to this seller address, which covers 120 catalog listings. Methodology: seller attribution
Updated weekly · data as of 2026-10-13 · method score-v1.0.0 · tracked-catalog data · methodology
- Verified revenue (30d)
- $93.61
- Verified revenue (all observed)
- $93.61 across 124 payments
- Buyer concentration
- 60%3 top buyer — most revenue comes from one buyer
- Longevity
- 2026-09-23 first observed payment · last 2026-09-29
- Median payment (30d)
- $0.254
Verified revenue means we can recompute this number from public chain data. It does not mean we endorse this seller or that the service works.
What do they say they sell?
Descriptions and categories below are claims from the seller's own listings, organized by the published category rule — never verified by us. Find by claim, trust by evidence: the evidence is the table above.
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Compare supplied vendor proposals against explicit requirements, cost components, risks, and unanswered questions. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Calculate subtotal, per-line tax, discount and deposit from supplied invoice line items. Per-line tax percent (not a single flat rate), discount applied to the pre-tax subtotal, deposit as a percent-of-total or fixed amount clamped to the total. Pure arithmetic; does not create, store or send an inv… — seller-asserted
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Generate page titles and descriptions from supplied page facts, including character counts and intent notes. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Classify supplied text using supplied labels and definitions, with rationale, uncertainty, and an unknown category. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Organize supplied stakeholders by project role, information needs, dependencies, and engagement actions. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Rank the supplied providers using transparent criteria and missing-data handling; no external directory search is claimed. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Create an episode premise, segment rundown, host questions, and closing takeaways. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Rewrite supplied text in plain language and explain unavoidable technical terms without adding claims. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Strip an HTML fragment down to a vetted allowlist of semantic/structural tags and safe attributes, removing script tags, inline event handlers and unsafe link/media schemes (only http, https, mailto, tel survive). Forces rel=noopener noreferrer on every anchor. Does not render, fetch, or validate th… — seller-asserted
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Produce a writing brief with audience, thesis, outline, evidence needed, and acceptance criteria. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Draft a reply to a customer's public review in a specified tone (professional, friendly, or apologetic), addressing what they actually wrote without inventing facts, promises, discounts or compensation the buyer did not explicitly authorize. Keep it concise and appropriate to post publicly. Uses buy… — seller-asserted
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Draft a concise personalized outreach email using supplied business context; do not send it or invent personalization. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Organize supplied customer evidence into challenge, approach, results, and missing proof; do not invent outcomes. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Create a SWOT using supplied evidence, distinguishing facts from hypotheses and proposing validation steps. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Extract requested fields from supplied text into a clearly structured artifact; use null for missing data. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
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Group supplied keywords by intent and topic, explain ambiguous groupings, and do not invent search volume. Uses buyer-supplied information only; no external research or outbound actions. Returns a draft for human review. — seller-asserted
- USDC transfers on Base to 0x421b…a89e, blocks 51674443–51930719, excluding flagged exchange/fan-out senders and self-transfers (exclusion list flags-2026-10-13). Computed 2026-10-13 under score-v1.0.0. Methodology
- Distinct unexcluded sender addresses in the window. Methodology
- Share of 30-day verified revenue from the single largest buyer. Methodology
- Median of unexcluded 30-day payments — an on-chain-observed price signal, not a listed price. Methodology
Machine-readable: /api/v1/sellers/421b1e2ebc54 · Back to rankings