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A first finding of ours, not a change at the vendor.","noticed_at":"2026-09-02T01:50:18.110Z","subject":{"kind":"organization","slug":"appnexus","name":"AppNexus"},"before":null,"after":{"value":"US","verification_state":"verified","confidence":90},"claim_id":"f8710a05-7f44-4ed4-92bd-4b6ff3caf2c0","statement_id":"st_69367a1b3804b8a8856a","corrected":null},{"id":"42465","type":"research_update","label":"Research update","material":false,"sentence":"AppNexus: Headquarters is no longer documented as US; that value was withdrawn and is now recorded as not measured. This describes our measurement, not a change at the vendor. Corrected on 2026-09-04: the value returned to the earlier form; two of our own readers write it differently, and this was not a change at the vendor.","noticed_at":"2026-09-02T11:49:29.571Z","subject":{"kind":"organization","slug":"appnexus","name":"AppNexus"},"before":{"value":"US","verification_state":"verified","confidence":90},"after":{"value":null,"verification_state":"unknown","confidence":0},"claim_id":"ef4075eb-2242-4890-b424-83d785acd816","statement_id":"st_69367a1b3804b8a8856a","corrected":{"by_event_id":"75852","on":"2026-09-04","reason":"the same value returned on 2026-09-04; two of our own readers write it differently. This was not a change at the vendor."}},{"id":"75852","type":"documented","label":"First documented","material":true,"sentence":"AppNexus: Headquarters documented as US (verified). A first finding of ours, not a change at the vendor.","noticed_at":"2026-09-04T12:50:50.158Z","subject":{"kind":"organization","slug":"appnexus","name":"AppNexus"},"before":{"value":null,"verification_state":"unknown","confidence":0},"after":{"value":"US","verification_state":"verified","confidence":90},"claim_id":"e95ade37-f661-4f76-8c32-09568ede872d","statement_id":"st_69367a1b3804b8a8856a","corrected":null}],"page_url":"https://sourcetier.com/statements/st_69367a1b3804b8a8856a","contract":"A statement is the question a claim answers: one subject, one attribute, one scope and region. statement_id stays the same when a new value supersedes the old one, when we withdraw it and when two duplicate entities are merged (the old id then redirects). claim_id identifies one version. versions lists every version oldest first; ended_by is superseded, withdrawn or null for the current one. confidence_recorded is the confidence stored when that version was written, not a recomputation. unknown describes our research, never the product."}