{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PWIAZGRICVHIC4AWX4XTZP7US4","short_pith_number":"pith:PWIAZGRI","canonical_record":{"source":{"id":"2507.02138","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-07-02T20:50:36Z","cross_cats_sorted":[],"title_canon_sha256":"ea2e7c5e2def269875b908f9a42e368e27b0997cff14673472dd7f523e85e337","abstract_canon_sha256":"4716d5c17657ad4f263eed58184007e8f463991a88e9d176904c919b0eeb10c7"},"schema_version":"1.0"},"canonical_sha256":"7d900c9a28154e817016bf2f3cbff49708197b437d4b873144aebda766c8f1b3","source":{"kind":"arxiv","id":"2507.02138","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.02138","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"2507.02138v1","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.02138","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"PWIAZGRICVHI","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"PWIAZGRICVHIC4AW","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"PWIAZGRI","created_at":"2026-07-05T11:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PWIAZGRICVHIC4AWX4XTZP7US4","target":"record","payload":{"canonical_record":{"source":{"id":"2507.02138","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-07-02T20:50:36Z","cross_cats_sorted":[],"title_canon_sha256":"ea2e7c5e2def269875b908f9a42e368e27b0997cff14673472dd7f523e85e337","abstract_canon_sha256":"4716d5c17657ad4f263eed58184007e8f463991a88e9d176904c919b0eeb10c7"},"schema_version":"1.0"},"canonical_sha256":"7d900c9a28154e817016bf2f3cbff49708197b437d4b873144aebda766c8f1b3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:31:12.648548Z","signature_b64":"oWNyexAMzSUhWgWrwdgIfK/8R2ugStPiZOyyi7YLe+7GR/VVyyBiPK00aZJH+ZoICj7P16mRzQrMU6D5lZMnDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d900c9a28154e817016bf2f3cbff49708197b437d4b873144aebda766c8f1b3","last_reissued_at":"2026-07-05T11:31:12.648075Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:31:12.648075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.02138","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:31:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"67A7JE/zBovpWw6jCtk4KEM33O7YSOPU1IvhO1ARpmkoYFuwODnyn2naQB7UCJ0a1MMylAWspGtkbQAc8qQmDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T18:45:36.274218Z"},"content_sha256":"05781066ca43c9130b9be13125a4a3f8c4f14599d858bf212724e486b47ed6e8","schema_version":"1.0","event_id":"sha256:05781066ca43c9130b9be13125a4a3f8c4f14599d858bf212724e486b47ed6e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PWIAZGRICVHIC4AWX4XTZP7US4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Theory-driven and AI-enhanced Simulation Platform for Cultivating Nutrition Literacy","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.HC","authors_text":"Guozhu Ding, Shan Li","submitted_at":"2025-07-02T20:50:36Z","abstract_excerpt":"This study introduces and evaluates Healthy Choice, an innovative theory-driven and AI-enhanced simulation platform designed to cultivate nutrition literacy through interactive scenario-based learning experiences. We collected feedback from 114 university students with diverse backgrounds who completed simulated product selection scenarios. Quantitative ratings of usefulness and ease of use demonstrated high user satisfaction."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.02138","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2507.02138/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:31:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ddtWYtjuPvnynU5t3DHCD4sT9ehq6wQT7dvxVquvSD2+uB2tZZ3yzUHo6rvvSlSBVJO92vAcUoRH5TOqKbHSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T18:45:36.274882Z"},"content_sha256":"0bd4280e0bb270081a23436370ad2fb2dab6af408f9531e1117b46f9e8158d62","schema_version":"1.0","event_id":"sha256:0bd4280e0bb270081a23436370ad2fb2dab6af408f9531e1117b46f9e8158d62"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PWIAZGRICVHIC4AWX4XTZP7US4/bundle.json","state_url":"https://pith.science/pith/PWIAZGRICVHIC4AWX4XTZP7US4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PWIAZGRICVHIC4AWX4XTZP7US4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-07T18:45:36Z","links":{"resolver":"https://pith.science/pith/PWIAZGRICVHIC4AWX4XTZP7US4","bundle":"https://pith.science/pith/PWIAZGRICVHIC4AWX4XTZP7US4/bundle.json","state":"https://pith.science/pith/PWIAZGRICVHIC4AWX4XTZP7US4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PWIAZGRICVHIC4AWX4XTZP7US4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PWIAZGRICVHIC4AWX4XTZP7US4","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4716d5c17657ad4f263eed58184007e8f463991a88e9d176904c919b0eeb10c7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-07-02T20:50:36Z","title_canon_sha256":"ea2e7c5e2def269875b908f9a42e368e27b0997cff14673472dd7f523e85e337"},"schema_version":"1.0","source":{"id":"2507.02138","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.02138","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"arxiv_version","alias_value":"2507.02138v1","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.02138","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"pith_short_12","alias_value":"PWIAZGRICVHI","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"PWIAZGRICVHIC4AW","created_at":"2026-07-05T11:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"PWIAZGRI","created_at":"2026-07-05T11:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:0bd4280e0bb270081a23436370ad2fb2dab6af408f9531e1117b46f9e8158d62","target":"graph","created_at":"2026-07-05T11:31:12Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2507.02138/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This study introduces and evaluates Healthy Choice, an innovative theory-driven and AI-enhanced simulation platform designed to cultivate nutrition literacy through interactive scenario-based learning experiences. We collected feedback from 114 university students with diverse backgrounds who completed simulated product selection scenarios. Quantitative ratings of usefulness and ease of use demonstrated high user satisfaction.","authors_text":"Guozhu Ding, Shan Li","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-07-02T20:50:36Z","title":"A Theory-driven and AI-enhanced Simulation Platform for Cultivating Nutrition Literacy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.02138","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:05781066ca43c9130b9be13125a4a3f8c4f14599d858bf212724e486b47ed6e8","target":"record","created_at":"2026-07-05T11:31:12Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4716d5c17657ad4f263eed58184007e8f463991a88e9d176904c919b0eeb10c7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2025-07-02T20:50:36Z","title_canon_sha256":"ea2e7c5e2def269875b908f9a42e368e27b0997cff14673472dd7f523e85e337"},"schema_version":"1.0","source":{"id":"2507.02138","kind":"arxiv","version":1}},"canonical_sha256":"7d900c9a28154e817016bf2f3cbff49708197b437d4b873144aebda766c8f1b3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7d900c9a28154e817016bf2f3cbff49708197b437d4b873144aebda766c8f1b3","first_computed_at":"2026-07-05T11:31:12.648075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:31:12.648075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oWNyexAMzSUhWgWrwdgIfK/8R2ugStPiZOyyi7YLe+7GR/VVyyBiPK00aZJH+ZoICj7P16mRzQrMU6D5lZMnDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:31:12.648548Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.02138","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05781066ca43c9130b9be13125a4a3f8c4f14599d858bf212724e486b47ed6e8","sha256:0bd4280e0bb270081a23436370ad2fb2dab6af408f9531e1117b46f9e8158d62"],"state_sha256":"57f46166a7008411d10d6b105893a4515426aed666c871308a1021aed964ecc5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0vbYbGGJJy+/bqiNgHzGstvZJCK2mxq9bU1H9gfojiF5R8k07rbuupEMIW9FBRXRN8T8g7WsqeZI3Emcjh5dDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T18:45:36.280020Z","bundle_sha256":"5335eeeb14934341e0c1f6d08e737ca2b317e27e60cecb28a57bafe7ff793901"}}