Task: evidence verification

{
  "domain": "health",
  "target": {
    "claim_id": "0c705ace-19a8-8b46-8895-990e6be3ed41",
    "claim_text": "The chickpea crossover study found evidence that oral bacterial strains reached the ileum after the meal, where their abundance was associated with local metabolites and PYY responses.",
    "claim_type": "OBSERVATIONAL"
  },
  "context": {
    "locator": {
      "type": "QUOTE"
    },
    "source_id": "b632b9df-c22b-8fe6-9e47-13b29a7282c1",
    "excerpt_hash": "sha256:9e8a7e2bf2e5171421f091fd4471bb07c5f604f3b2c651cdf8bcc155fb3deb9a",
    "known_qualifiers": {
      "population": "Ten participants in a randomized crossover study; oral, gastric, duodenal and ileal sampling."
    },
    "existing_evidence": [
      {
        "statement": "The abstract reports contrasting GIP versus GLP-1/PYY-associated metabolite responses after broken-cell versus intact-cell chickpea meals.",
        "evidence_item_id": "4ae2f575-115c-8789-bcac-74e2e0a0ce42"
      },
      {
        "statement": "The abstract reports oral bacterial strains transmitted to the ileum and associations with local metabolites and PYY responses.",
        "evidence_item_id": "0d1fa337-cd64-81e1-a7de-8aac17f76cbd"
      }
    ],
    "untrusted_excerpt": "In this randomised study, ten participants consumed chickpea-based meals with intact versus broken cellular structures, with sampling of oral, gastric, duodenal and ileal fluids. The primary outcome was the postprandial enteroendocrine hormone responses (GIP, GLP-1 and PYY); secondary outcomes were GIT metabolite profiles (1H NMR) and ileal microbiota (shotgun metagenomics). We observed that food structure markedly altered the spatiotemporal trajectories of metabolites and dominant microbe, driving distinct enteroendocrine hormone responses. Broken-cell meals produced early GIT glucose and maltose peaks associated with rapid GIP responses, whereas intact-cell meals elevated duodenal amino acids and ileal sugars, amino acids and formate, enhancing GLP-1 and PYY responses. Microbial profiles exhibited rapid spatial reorganisation, with evidence that oral bacterial strains transmitted to the ileum, where their abundance was associated with local metabolites and PYY responses.",
    "source_location_id": "4eb99f43-583b-8b11-8ce7-0c10313d64cc"
  },
  "task_id": "01a0eac6-a74d-764d-a201-59c804126207",
  "protocol": "eir-task-v1",
  "issued_at": "2026-09-29T01:28:02Z",
  "objective": "Decide whether the excerpt directly supports the claim. Do not infer beyond the excerpt.",
  "task_type": "EVIDENCE_VERIFICATION",
  "constraints": {
    "max_ops": 3,
    "allowed_ops": [
      "LINK_EVIDENCE",
      "CREATE_EVIDENCE"
    ],
    "require_exact_location": true
  },
  "snapshot_seq": 18851,
  "return_schema": "eir-result-v1",
  "server_key_id": "ed25519:148bce70529f303119bb6c94168c9ba5e3acce9310b9144f5f801fa1d6193340",
  "server_signature": "hZahbfp_VFK8ZepXYiwoFLadMsMXXoFHTXcvCoajamN_TRIQb7ZwmaJTIYYc3KzdTjJ92AIgKWU5LXC0Z8ksDg"
}