Abdur
Writes & checks every guide
Japan-wide
Live data sources cited
๐ Our editorial commitment
Specific over vague. Verifiable over impressive. Independent over influenced. We won't publish a claim we can't back up โ that's what trust actually means.
Who writes JP Sheet content?
All JP Sheet content is written by Abdur (AZi Champ), the founder of JP Sheet, with the help of AI tools. Abdur has followed the Japanese car auction market since 2007 and reads auction sheets every day for JP Sheet reports.
AI helps with drafting and wording. Abdur checks every grade, damage code, price and rule against real auction sheets and our own records, edits the text and approves it before it is published. We do not accept guest posts or paid articles.
More about the author on our Authors page.
How do we research our content?
Every technical claim on JP Sheet is verified against primary sources โ the live Japanese auction database that powers our verification service, not secondary blog posts or aggregator sites.
1
Start with the original dataAuction grade definitions, damage code conventions and inspection symbols are checked against current auction-house publications (USS, JU, AUCNET, TAA, JAA, HAA and others โ the actual sources that record the auction).
2
Check our own recordsEvery report we deliver is stored in our database, so claims about grades, marks and prices are checked against real records we have handled.
3
Verify against real examplesBefore we publish a claim like "Grade R typically indicates [X]", we cross-check it against a sample of recent real-world auction records to confirm the pattern still holds.
4
Specifics not genericsWe cite specific auction houses, specific damage codes and specific grade thresholds โ not "many auction houses" or "common damage codes". If we can't be specific, we don't publish.
5
Cite the sourceFor every guide, we link back to our
Data Sources page so readers can trace where our facts come from.
How do we fact-check before publishing?
Every article is checked by Abdur before it goes live:
- Facts โ every grade, damage code, price and rule is checked against real auction sheets and primary sources.
- Consistency โ the article must agree with our other guides (we don't want one guide saying "21 years" and another saying "20+").
We err on the side of caution. If we are unsure about a statistic, we either confirm it from a primary source within 24 hours or we cut the claim from the article. We would rather publish less and be right than publish more and be wrong.
How often is content updated?
The Japanese auction industry evolves โ new auction houses open, grading conventions shift slightly, damage codes get refined. To stay accurate:
- Regular reviews โ guides are re-checked when rules, prices or auction practices change
- Triggered reviews โ when an auction house changes a grading convention, a new damage code appears, or a regulation changes, any affected guides are updated immediately
- Last-updated dates โ every guide shows when it was last reviewed, so you can see at a glance whether the content is current
- Major rewrites โ significant changes (e.g. a complete restructure or substantial new information) are noted in our changelog
What is our corrections policy?
If we publish something wrong, we want to fix it fast. Here is exactly how we handle corrections:
- Anyone โ customer, competitor, casual reader โ can report a factual error by emailing [email protected] with subject "Editorial Correction".
- We acknowledge within 48 hours. Even if we end up disagreeing, you'll know we read it.
- We verify against primary sources. If the correction stands up, we update the article โ usually within 48 hours of acknowledgement.
- We note the change. Material corrections get a "Corrected on [date]" note at the bottom of the affected article.
- We credit the person who flagged it (with their permission) โ name and a link they choose. This applies even to corrections from competitors.
Minor fixes โ typos, broken links, formatting โ are corrected silently without a notice. Substantive factual corrections always get acknowledged on the page.
Are we independent? Do we have conflicts of interest?
Yes, independent. No undisclosed conflicts. Specifically:
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No paid placements
We do not accept payment in exchange for editorial coverage of any product, service, auction house, exporter, dealer, shipping company or related business. If we ever did, it would be labelled "Sponsored" or "Paid Partnership" before the headline โ but as a matter of policy, we don't.
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No favoured vendors
Our verification service connects to Japan-wide auction coverage across Japan. We don't favour any one auction house, dealer panel or salvage network in our editorial coverage. Where we discuss specific players in the industry, we cover the major ones consistently.
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No affiliate revenue on editorial
Our blog and guides do not earn affiliate commission. The only links we publish are to our own services or to authoritative external references (auction houses, regulators, technical standards). We have no financial incentive to recommend any third-party.
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No legal pressure
We do not remove or amend factual editorial content in response to legal threats unless the content was demonstrably wrong on its facts. Where there is a legitimate factual dispute, we follow our corrections policy above.
What is JP Sheet's AI policy for content?
Honesty here is important โ readers should know what's written by a human and what isn't.
- Written by Abdur with AI help. Every guide, blog post and explainer is written by Abdur (AZi Champ) with the help of AI tools, then checked and verified by Abdur himself before it goes live.
- Our chatbot is AI. The customer-support chatbot on our site uses an AI model (Google Gemini). It is clearly identified as a chatbot. Its responses are based on a curated, human-reviewed knowledge base โ not unconstrained AI generation.
- Translations are 100% human. Every auction sheet translation is done by a person, not AI.
- Verification reports are not AI-generated. Auction sheet verification reports pull data directly from the Japanese auction database โ the numbers and damage codes you see are recorded by the original Japanese inspector, not generated by us or by AI.
Writing about US and Canadian vehicles
We are not American, and we say so. Our expertise was built on Japanese auction sheets over years
of reading them. US vehicle history is newer ground for us, and we hold that content to a stricter sourcing rule
because of it.
Where the claim is factual, we cite the source. Title brands, odometer rules, what NMVTIS holds
and what it does not — these come from the federal database’s own documentation and state DMV publications,
not from other blogs repeating each other.
Where practice varies by state, we say which state. “A salvage title means X” is
usually wrong, because it means different things in different states. That is exactly why title washing works, and
writing as though the rules were uniform would mislead the reader about the risk.
Where we do not know, we do not fill the gap. A guide that stops short is more useful than one
that guesses fluently.
Our reports are not articles
This policy covers our guides and blog. The verification reports customers buy follow a different and
stricter standard, and it is worth being clear about the difference.
A report states what the record says, and nothing more. Our own reading is labelled as such and
kept separate from the record itself. Where a sheet is ambiguous, the report says it is ambiguous rather than picking
the reassuring interpretation.
We are never paid to reach a conclusion. Nobody — not a seller, not an exporter, not a dealer
— can pay us to grade a car more kindly. A finding that costs a seller a sale gets written exactly the same way
as one that does not.
If a report is wrong, tell us and we search again by hand, free. Our
transparency report publishes how many problems were reported and how many we
resolved, because a corrections policy nobody can check is just a paragraph.
Where do our sources come from?
Our primary sources include:
- Live auction databases from USS, JU (Japan Used Car Network), AUCNET, TAA, JAA, HAA and other Japanese auction houses we connect to — 130+ in total
- Dealer inventory panels (100+ Japanese dealer networks)
- Salvage and accident stock networks (50+)
- Private stocks (150+)
- Japan Used Motor Vehicle Inspection Council (JUMVIC) for current inspection standards
- Japan Customs publications for export regulations
- Government export certificate frameworks as published by the Japanese Ministry of Land, Infrastructure, Transport and Tourism
We do not rely on third-party blogs, content aggregators or scraped data as primary sources. Where we reference an external claim, we cite the original publication and date.
Who is named as the author?
Every guide is written by Abdur (AZi Champ) with AI help and checked by Abdur himself. See the Authors page.
We never use made-up names, fake teams or AI-generated bylines.
How do I report an editorial issue?
For corrections, attribution requests, or any editorial concern:
- Email [email protected] with subject "Editorial Correction"
- Include the URL of the page in question
- Explain what is incorrect and (if possible) your source
We acknowledge every submission within 48 hours. We respect the time of people who flag errors โ we treat your message as a contribution, not a complaint.
๐ Found something we got wrong?
Tell us โ we acknowledge within 48 hours and credit you for the catch.
Email [email protected]
Related: Data Sources ยท Our Authors ยท About JP Sheet
