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The brand should explain the mismatch.","source":"Listing claim vs Supplement Facts","source_links":[],"registry_receipts":[],"evidence_id":"ev-9f1b4a50b896","evidence_url":"https://lookcloser.ai/e/ev-9f1b4a50b896","presentation_home":"finding_catalog"},{"finding_id":"barcode-gtin-record-upc-independently-corroborated","card_type":"upc_corroborated","question":"owner","tone":"ok","weight":48,"headline":"The barcode identity checks out · 810390029198.","evidence":"Open Food Facts resolves 810390029198 to \"C4 Sport Pre-Workout Blue Raspberry\" (C4) — consistent with this listing.","so_what":"The barcode matches, so we are checking the right product rather than a look-alike.","source":"Barcode / GTIN record","source_links":[],"registry_receipts":[],"evidence_id":"ev-458182a63a69","evidence_url":"https://lookcloser.ai/e/ev-458182a63a69","presentation_home":"finding_catalog"},{"finding_id":"nih-published-research-research-context-is-available-for-the-listed-ingr","card_type":"research_available","question":"goals","tone":"neutral","weight":44,"headline":"Research links are available for magnesium.","evidence":"Published sources describe how magnesium have been studied. 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This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product.","so_what":"This tells you who is behind the brand and where the trademark record points. 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That is a gap in our records, not evidence that no filing exists.","identity_basis":"listing","status":"live","source_refs":["facts_panel","source_listing"],"source_url":"https://www.amazon.com/dp/B0734F7W6Q","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-30","presentation_tone":"gap","evidence_id":"ev-da96ca8d1eed","evidence_url":"https://lookcloser.ai/e/ev-da96ca8d1eed","content_fingerprint":"sha256:68ef1638cc6db6db760b9c5faddd9e664ac7b413d83dd4e83279b3e615f97bdd","registry_receipts":[],"evidence":{"summary":"We have not found a public label filing for this exact product. 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That is a gap in our records, not evidence that no filing exists."},"html_anchor":"finding-label-and-serving-arithmetic-public-label-filing-not-retained","report_url":"https://lookcloser.ai/p/810390029198/full#finding-label-and-serving-arithmetic-public-label-filing-not-retained"},{"id":"keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","source":"Keepa exact-listing history","class":"gap","noted":false,"severity":"info","weight":19,"headline":"This item belongs to a catalog variation family","detail":"The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.","proof":"The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.","identity_basis":"listing","status":"live","source_refs":["keepa_history","source_listing"],"source_url":"https://keepa.com/#!product/1-B0734F7W6Q","scope":"exact_listing","inference_level":"gap","observed_at":"2026-07-30","presentation_tone":"gap","evidence_id":"ev-69278fd403cc","evidence_url":"https://lookcloser.ai/e/ev-69278fd403cc","content_fingerprint":"sha256:f248fb7dea4f9c81b32bf741a26054bca0a447dd253f594b1a93c47e8cd15542","registry_receipts":[],"evidence":{"summary":"The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.","source_refs":["keepa_history","source_listing"],"source_records":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","looked":"LookCloser checked Keepa exact-listing history.","found":"The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant."},"html_anchor":"finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","report_url":"https://lookcloser.ai/p/810390029198/full#finding-keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam"},{"id":"keepa-exact-listing-history-180-day-review-count-history-is-on-file","source":"Keepa exact-listing history","class":"gap","noted":false,"severity":"info","weight":16,"headline":"180-day review-count history is on file","detail":"Exact-listing history records written-review counts from 1,231 on 2025-07-02 to 1,328 on 2026-07-22 (net +97). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","proof":"Exact-listing history records written-review counts from 1,231 on 2025-07-02 to 1,328 on 2026-07-22 (net +97). 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A blend total can’t tell you whether any single ingredient reaches a dose used in research.","proof":{"detail":"The panel lists “C4 Sport® Performance Blend” (3.181 g) as a combined amount. A blend total can’t tell you whether any single ingredient reaches a dose used in research."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:b2daebee31529f1c3e067b5aee8a2f4da0c3aac966357606aa39fffec49e9294","evidence_url":"https://lookcloser.ai/e/ev-aedeaceab9e1"},{"evidence_id":"ev-44497b13c373","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:uspto-trademark-registry-exact-trademark-owner-identified","primary_source":"uspto_search","claim":"Exact trademark owner identified","bucket":"checks_out","looked":"LookCloser checked USPTO trademark registry.","found":"USPTO lists Woodbolt Distribution, LLC (LIMITED LIABILITY COMPANY) in DELAWARE, USA for the exact brand wordmark. 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This identifies the USPTO mark owner or applicant; it does not by itself prove who manufactures or sells this product."},"source_refs":[{"source":"uspto_search","source_url":"https://tsdr.uspto.gov/#caseNumber=86242935&caseSearchType=US_APPLICATION&caseType=DEFAULT&searchType=statusSearch","observed_at":"2026-07-30","identity_basis":"exact_wordmark_and_supplement_goods","scope":"brand","registry_name":"USPTO","identifier":"Registration 4632277","receipt_label":"USPTO · Registration 4632277"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:0152c12a2cdd24d82df586be4b743d70f21d2a26c291625f3779fef879d5a502","evidence_url":"https://lookcloser.ai/e/ev-44497b13c373"},{"evidence_id":"ev-458182a63a69","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:barcode-gtin-record-upc-independently-corroborated","primary_source":"barcode_search","claim":"UPC independently corroborated","bucket":"checks_out","looked":"LookCloser checked Barcode / GTIN record.","found":"Open Food Facts resolves 810390029198 to \"C4 Sport Pre-Workout Blue Raspberry\" (C4) — consistent with this listing.","proof":{"detail":"Open Food Facts resolves 810390029198 to \"C4 Sport Pre-Workout Blue Raspberry\" (C4) — consistent with this listing."},"source_refs":[{"source":"barcode_search","source_url":"https://world.openfoodfacts.org/product/00810390029198","observed_at":"2026-07-30","identity_basis":"gtin","scope":"exact_gtin"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:90981641720c6b522bb9cb662218d2c06bd7ef422a0800ca6d7014dfe9611813","evidence_url":"https://lookcloser.ai/e/ev-458182a63a69"},{"evidence_id":"ev-9f1b4a50b896","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:claim_not_on_panel","primary_source":"source_listing","claim":"The headline amount is not tied to a same-name panel row","bucket":"unverified","looked":"LookCloser checked Listing claim vs Supplement Facts.","found":"The listing presents 135 mg for caffeine, but vision:claude-cli:subscription does not contain a same-name quantified row. The retained image read may be incomplete, so this is a specific question to resolve rather than a contradiction.","proof":{"headline_claim_mg":135,"headline_subject":"caffeine","panel_source":"listing_image","same_name_row_found":false},"source_refs":[{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:22b51c32493136efc350e7a481bbe3a58a533a5a69af2f9e086eb315c643b143","evidence_url":"https://lookcloser.ai/e/ev-9f1b4a50b896"},{"evidence_id":"ev-5759b098e542","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:label-and-serving-arithmetic-no-physical-impossibility-in-the-listed-amo","primary_source":"facts_panel","claim":"No physical impossibility in the listed amounts","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"Technical check only: the panel’s 8 actives sum to 4,379 mg, which fits inside the ≈7,100 mg serving. This means the numbers are physically possible — it does not mean the formula was validated or the contents confirmed.","proof":{"detail":"Technical check only: the panel’s 8 actives sum to 4,379 mg, which fits inside the ≈7,100 mg serving. This means the numbers are physically possible — it does not mean the formula was validated or the contents confirmed."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:fad4037d435b5b90e084a7225b0b5f13f483cbb3a4bc4e156aa23156cd4abd30","evidence_url":"https://lookcloser.ai/e/ev-5759b098e542"},{"evidence_id":"ev-9eb66d4276b6","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:label-and-serving-arithmetic-photo-read-pack-math-is-internally-consiste","primary_source":"facts_panel","claim":"Photo-read pack math is internally consistent","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"30 servings × 7.1 g = 213 g, matching the printed net weight 213 g (NET WT 213g (7.5 OZ)). This checks agreement within the photo read; it is not an independent contents test.","proof":{"detail":"30 servings × 7.1 g = 213 g, matching the printed net weight 213 g (NET WT 213g (7.5 OZ)). This checks agreement within the photo read; it is not an independent contents test."},"source_refs":[{"source":"facts_panel","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:dba6e4c7b819b05f771ad0375da1215a447df50c076fcbdbf2b5f18592be6cf8","evidence_url":"https://lookcloser.ai/e/ev-9eb66d4276b6"},{"evidence_id":"ev-da96ca8d1eed","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:label-and-serving-arithmetic-public-label-filing-not-retained","primary_source":"facts_panel","claim":"Public label filing not retained","bucket":"unverified","looked":"LookCloser checked Label and serving arithmetic.","found":"We have not found a public label filing for this exact product. That is a gap in our records, not evidence that no filing exists.","proof":{"detail":"We have not found a public label filing for this exact product. 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Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic.","proof":{"detail":"Exact-listing history records written-review counts from 1,231 on 2025-07-02 to 1,328 on 2026-07-22 (net +97). Count movements can reflect sales, listing variants, collection resets, or moderation; this history does not establish whether reviews are authentic."},"source_refs":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:ba18f5b169fa12474366d3458fbe3ad0c0fe93e2b3d19a21632d3dda7b8dc15e","evidence_url":"https://lookcloser.ai/e/ev-2d15e22951fc"},{"evidence_id":"ev-69278fd403cc","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:keepa-exact-listing-history-this-item-belongs-to-a-catalog-variation-fam","primary_source":"keepa_history","claim":"This item belongs to a catalog variation family","bucket":"unverified","looked":"LookCloser checked Keepa exact-listing history.","found":"The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant.","proof":{"detail":"The paid catalog links this exact item to a parent listing. Review counts on public product pages may be shared across sizes, flavors, or other variants, so the count history is listing context — not evidence that reviewers received or tested this exact variant."},"source_refs":[{"source":"keepa_history","source_url":"https://keepa.com/#!product/1-B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"exact_listing_identifier","scope":"exact_listing"},{"source":"source_listing","source_url":"https://www.amazon.com/dp/B0734F7W6Q","observed_at":"2026-07-30","identity_basis":"listing_identifier","scope":"exact_listing"}],"observed_at":"2026-07-30","content_fingerprint":"sha256:f248fb7dea4f9c81b32bf741a26054bca0a447dd253f594b1a93c47e8cd15542","evidence_url":"https://lookcloser.ai/e/ev-69278fd403cc"},{"evidence_id":"ev-5f1edcc37596","record_id":"810390029198","gtin":"810390029198","claim_key":"finding:nih-published-research-research-context-is-available-for-the-listed-ingr","primary_source":"nih_ods_magnesium","claim":"Research context is available for the listed ingredients","bucket":"unverified","looked":"LookCloser checked NIH / published research.","found":"Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. Sources: NIH ODS — Magnesium fact sheet, PubMed search: magnesium glycinate supplementation.","proof":{"detail":"Published sources describe how magnesium have been studied. This is ingredient context only; the record does not establish that this product delivers the studied dose or outcome. 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