{"$schema":"https://wem3.ai/standard/verified-offer/schema.json","standard":"wem-verified-offer","version":"1.2","description":"Worked fixtures generated by running the same function that answers the live verify_offer API, over a synthetic catalogue. The shapes and verdicts are real output; the products, retailers and prices are not live market observations and must not be quoted as such. Named source exclusions are an implementation matter (criterion 8) and are not listed here.","observedAt":"2026-08-28T14:03:27Z","examples":[{"name":"confirmed","teaches":"Identity resolved by barcode, availability reported by the source, and the claimed price matches what WEM observed. The strongest answer the system produces.","request":{"product":{"slug":"sony-wh-1000xm6"},"identifiedBy":"gtin","claim":{"price":229,"currency":"GBP","retailer":"ebay"}},"response":{"verdict":"confirmed","identity":{"method":"gtin","strength":"exact"},"product":{"slug":"sony-wh-1000xm6","title":"Sony WH-1000XM6 Wireless Headphones"},"claimMatched":{"retailer":"eBay","provider":"ebay","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=ebay&id=ebay-1"},"cheapest":{"retailer":"eBay","provider":"ebay","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=ebay&id=ebay-1"},"betterBy":0,"offers":[{"retailer":"eBay","provider":"ebay","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=ebay&id=ebay-1"},{"retailer":"Argos","provider":"argos","price":249,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"}],"toleranceApplied":2.29,"lastConfirmedAt":"2026-08-28T14:03:27Z","summary":"Confirmed: GBP 229.00 at eBay is live, and it is the cheapest verified offer WEM holds.","source":"wem-catalog","disclosure":"Outbound links are affiliate-tracked: WEM may receive a disclosed commission from the retailer, paid from the retailer’s margin at no extra cost to the buyer. Prices are indicative snapshots — the retailer sets the final price, and checkout always completes on the retailer."}},{"name":"confirmed-availability-unknown","teaches":"The price is confirmed but the retailer never reported stock, so inStock is null and the summary says so. Criterion 5: an implementation that renders this as \"in stock\" does not conform, however correct its price handling is.","request":{"product":{"slug":"sony-wh-1000xm6"},"identifiedBy":"gtin","claim":{"price":229,"currency":"GBP","retailer":"argos"}},"response":{"verdict":"confirmed","identity":{"method":"gtin","strength":"exact"},"product":{"slug":"sony-wh-1000xm6","title":"Sony WH-1000XM6 Wireless Headphones"},"claimMatched":{"retailer":"Argos","provider":"argos","price":229,"currency":"GBP","inStock":null,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"},"cheapest":{"retailer":"Argos","provider":"argos","price":229,"currency":"GBP","inStock":null,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"},"betterBy":0,"offers":[{"retailer":"Argos","provider":"argos","price":229,"currency":"GBP","inStock":null,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"}],"toleranceApplied":2.29,"lastConfirmedAt":"2026-08-28T14:03:27Z","summary":"Confirmed: GBP 229.00 at Argos is live, and it is the cheapest verified offer WEM holds. Argos did not report availability, so stock is unconfirmed.","source":"wem-catalog","disclosure":"Outbound links are affiliate-tracked: WEM may receive a disclosed commission from the retailer, paid from the retailer’s margin at no extra cost to the buyer. Prices are indicative snapshots — the retailer sets the final price, and checkout always completes on the retailer."}},{"name":"confirmed-identity-inferred","teaches":"The price matches, but the product was resolved from a name rather than an identifier. Criterion 1: identity strength is reported separately and the summary never opens with the bare word \"Confirmed\".","request":{"product":{"slug":"sony-wh-1000xm6"},"identifiedBy":"title","claim":{"price":229,"currency":"GBP","retailer":"argos"}},"response":{"verdict":"confirmed","identity":{"method":"title","strength":"inferred"},"product":{"slug":"sony-wh-1000xm6","title":"Sony WH-1000XM6 Wireless Headphones"},"claimMatched":{"retailer":"Argos","provider":"argos","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"},"cheapest":{"retailer":"Argos","provider":"argos","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"},"betterBy":0,"offers":[{"retailer":"Argos","provider":"argos","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"}],"toleranceApplied":2.29,"lastConfirmedAt":"2026-08-28T14:03:27Z","summary":"Price matches: GBP 229.00 at Argos is live, and it is the cheapest verified offer WEM holds. Identity note: this was matched to \"Sony WH-1000XM6 Wireless Headphones\" on the product name, not a barcode — confirm it is the same item before relying on the price.","source":"wem-catalog","disclosure":"Outbound links are affiliate-tracked: WEM may receive a disclosed commission from the retailer, paid from the retailer’s margin at no extra cost to the buyer. Prices are indicative snapshots — the retailer sets the final price, and checkout always completes on the retailer."}},{"name":"price-moved","teaches":"A non-confirming verdict that is NOT an absence of evidence: product and retailer resolved, and WEM’s reading differs from the claim. Phrased as WEM’s observation, never as an accusation against the retailer.","request":{"product":{"slug":"sony-wh-1000xm6"},"identifiedBy":"gtin","claim":{"price":199,"currency":"GBP","retailer":"argos"}},"response":{"verdict":"price_moved","identity":{"method":"gtin","strength":"exact"},"product":{"slug":"sony-wh-1000xm6","title":"Sony WH-1000XM6 Wireless Headphones"},"claimMatched":null,"cheapest":{"retailer":"Argos","provider":"argos","price":249,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"},"betterBy":0,"offers":[{"retailer":"Argos","provider":"argos","price":249,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=argos&id=argos-1"}],"toleranceApplied":2.49,"lastConfirmedAt":"2026-08-28T14:03:27Z","summary":"WEM last read GBP 249.00 at Argos for Sony WH-1000XM6 Wireless Headphones, not GBP 199.00. The cheapest verified offer is GBP 249.00 at Argos.","source":"wem-catalog","disclosure":"Outbound links are affiliate-tracked: WEM may receive a disclosed commission from the retailer, paid from the retailer’s margin at no extra cost to the buyer. Prices are indicative snapshots — the retailer sets the final price, and checkout always completes on the retailer."}},{"name":"not-at-retailer","teaches":"WEM holds the product but no live offer of it at the named retailer. Absence from WEM’s catalogue is not evidence the retailer lacks the item, and the summary says that explicitly.","request":{"product":{"slug":"sony-wh-1000xm6"},"identifiedBy":"gtin","claim":{"price":229,"currency":"GBP","retailer":"currys"}},"response":{"verdict":"not_at_retailer","identity":{"method":"gtin","strength":"exact"},"product":{"slug":"sony-wh-1000xm6","title":"Sony WH-1000XM6 Wireless Headphones"},"claimMatched":null,"cheapest":{"retailer":"eBay","provider":"ebay","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=ebay&id=ebay-1"},"betterBy":0,"offers":[{"retailer":"eBay","provider":"ebay","price":229,"currency":"GBP","inStock":true,"url":"https://wem3.ai/api/go?p=ebay&id=ebay-1"}],"toleranceApplied":null,"lastConfirmedAt":"2026-08-28T14:03:27Z","summary":"WEM has no verified offer for Sony WH-1000XM6 Wireless Headphones at currys. The cheapest verified offer is GBP 229.00 at eBay. Absence from WEM's catalogue does not mean the retailer does not stock it.","source":"wem-catalog","disclosure":"Outbound links are affiliate-tracked: WEM may receive a disclosed commission from the retailer, paid from the retailer’s margin at no extra cost to the buyer. Prices are indicative snapshots — the retailer sets the final price, and checkout always completes on the retailer."}},{"name":"unknown-product","teaches":"Criterion 6, the case most implementations get wrong: nothing resolved, so nothing is said. This is \"could not be checked\", never \"the claim is false\", and no price appears anywhere in the response.","request":{"product":{"title":"a product WEM does not hold"},"identifiedBy":null,"claim":{"price":229,"currency":"GBP","retailer":"argos"}},"response":{"verdict":"unknown_product","identity":null,"product":null,"claimMatched":null,"cheapest":null,"betterBy":null,"offers":[],"toleranceApplied":null,"lastConfirmedAt":"2026-08-28T14:03:27Z","summary":"WEM has no verified offers for this product, so this price could not be checked. Treat it as unverified rather than as confirmed or refuted.","source":"wem-catalog","disclosure":"Outbound links are affiliate-tracked: WEM may receive a disclosed commission from the retailer, paid from the retailer’s margin at no extra cost to the buyer. Prices are indicative snapshots — the retailer sets the final price, and checkout always completes on the retailer."}}]}