{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:7CITASR6VITNJFUSQH2LGZW5K5","short_pith_number":"pith:7CITASR6","canonical_record":{"source":{"id":"2504.20519","kind":"arxiv","version":5},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2025-04-29T07:59:46Z","cross_cats_sorted":["cs.HC"],"title_canon_sha256":"4b4de17b611d41a0a098ca6a1dd2b9dbe26765a02a3f4e17657c4d6899be166e","abstract_canon_sha256":"5c907b621eb945adbf38226504f266ca3f79607798f9f8f3cb051792614fd96e"},"schema_version":"1.0"},"canonical_sha256":"f891304a3eaa26d4969281f4b366dd5749fba95e557636f3e332f56c6dc6f522","source":{"kind":"arxiv","id":"2504.20519","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.20519","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"2504.20519v5","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.20519","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"7CITASR6VITN","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"pith_short_16","alias_value":"7CITASR6VITNJFUS","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"pith_short_8","alias_value":"7CITASR6","created_at":"2026-06-10T01:09:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:7CITASR6VITNJFUSQH2LGZW5K5","target":"record","payload":{"canonical_record":{"source":{"id":"2504.20519","kind":"arxiv","version":5},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2025-04-29T07:59:46Z","cross_cats_sorted":["cs.HC"],"title_canon_sha256":"4b4de17b611d41a0a098ca6a1dd2b9dbe26765a02a3f4e17657c4d6899be166e","abstract_canon_sha256":"5c907b621eb945adbf38226504f266ca3f79607798f9f8f3cb051792614fd96e"},"schema_version":"1.0"},"canonical_sha256":"f891304a3eaa26d4969281f4b366dd5749fba95e557636f3e332f56c6dc6f522","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-10T01:09:16.657720Z","signature_b64":"7bXeEAJknTxPV3Q4dVaT0nh4bYJzbhCIUuH6X8ezeJ7IiX+i/8Mq+EWc8dx69lfNWq809rGuvh6pP6HX3tcWAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f891304a3eaa26d4969281f4b366dd5749fba95e557636f3e332f56c6dc6f522","last_reissued_at":"2026-06-10T01:09:16.656716Z","signature_status":"signed_v1","first_computed_at":"2026-06-10T01:09:16.656716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.20519","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-10T01:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/qCCqKcjkRqPPgbpoZ9ESERmQosQvoYA6B9AURbaWvHQPHFN4+GjocWPWt2+jOgDTvi7iq2TGuyXSvNFf0nTBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:49:57.262831Z"},"content_sha256":"7e0ca63de2157d21c7433f567ec8d60f77692b6e3e67d0cbf54a67aee104be92","schema_version":"1.0","event_id":"sha256:7e0ca63de2157d21c7433f567ec8d60f77692b6e3e67d0cbf54a67aee104be92"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:7CITASR6VITNJFUSQH2LGZW5K5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Large Language Model Chatbot Conversations vs Public Health Materials and Parental HPV Vaccination Intentions: A Randomized Clinical Trial","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.HC"],"primary_cat":"cs.CY","authors_text":"Alison Buttenheim, Anish K. Agarwal, Joseph Cappella, Lyle Ungar, Manuel Tonneau, Melanie Kornides, Neil K. R. Sehgal, Sharath Chandra Guntuku, Sunny Rai","submitted_at":"2025-04-29T07:59:46Z","abstract_excerpt":"Health care systems are increasingly considering large language model (LLM)-based chatbots for vaccine communication, but evidence that they improve durable, behaviorally relevant outcomes beyond existing health materials is limited. This randomized clinical trial tested whether brief, multiturn LLM chatbot interactions increased parental intention to vaccinate children against human papillomavirus (HPV) compared with no intervention and government public health materials, and whether effects persisted. Parents in the US, Canada, and UK were recruited online from March 3 to May 25, 2025, with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.20519","kind":"arxiv","version":5},"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/2504.20519/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":"2026-06-10T01:09:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Pi3h+VLrPMeCBvgZbFexSPiLgcCe/bd9ccIat3hQRJ+S+JRulfmhuIbMQPZ/aoTlciw20nXNoDSGBH0nnJ2KDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T06:49:57.263631Z"},"content_sha256":"4ec85ddcc77505a89fd7bb7b9fd3f5a94fd9374c8f2d958d2b29914d882ef240","schema_version":"1.0","event_id":"sha256:4ec85ddcc77505a89fd7bb7b9fd3f5a94fd9374c8f2d958d2b29914d882ef240"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7CITASR6VITNJFUSQH2LGZW5K5/bundle.json","state_url":"https://pith.science/pith/7CITASR6VITNJFUSQH2LGZW5K5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7CITASR6VITNJFUSQH2LGZW5K5/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":"2026-06-10T06:49:57Z","links":{"resolver":"https://pith.science/pith/7CITASR6VITNJFUSQH2LGZW5K5","bundle":"https://pith.science/pith/7CITASR6VITNJFUSQH2LGZW5K5/bundle.json","state":"https://pith.science/pith/7CITASR6VITNJFUSQH2LGZW5K5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7CITASR6VITNJFUSQH2LGZW5K5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7CITASR6VITNJFUSQH2LGZW5K5","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":"5c907b621eb945adbf38226504f266ca3f79607798f9f8f3cb051792614fd96e","cross_cats_sorted":["cs.HC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2025-04-29T07:59:46Z","title_canon_sha256":"4b4de17b611d41a0a098ca6a1dd2b9dbe26765a02a3f4e17657c4d6899be166e"},"schema_version":"1.0","source":{"id":"2504.20519","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.20519","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"arxiv_version","alias_value":"2504.20519v5","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.20519","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"pith_short_12","alias_value":"7CITASR6VITN","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"pith_short_16","alias_value":"7CITASR6VITNJFUS","created_at":"2026-06-10T01:09:16Z"},{"alias_kind":"pith_short_8","alias_value":"7CITASR6","created_at":"2026-06-10T01:09:16Z"}],"graph_snapshots":[{"event_id":"sha256:4ec85ddcc77505a89fd7bb7b9fd3f5a94fd9374c8f2d958d2b29914d882ef240","target":"graph","created_at":"2026-06-10T01:09:16Z","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/2504.20519/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Health care systems are increasingly considering large language model (LLM)-based chatbots for vaccine communication, but evidence that they improve durable, behaviorally relevant outcomes beyond existing health materials is limited. This randomized clinical trial tested whether brief, multiturn LLM chatbot interactions increased parental intention to vaccinate children against human papillomavirus (HPV) compared with no intervention and government public health materials, and whether effects persisted. Parents in the US, Canada, and UK were recruited online from March 3 to May 25, 2025, with ","authors_text":"Alison Buttenheim, Anish K. Agarwal, Joseph Cappella, Lyle Ungar, Manuel Tonneau, Melanie Kornides, Neil K. R. Sehgal, Sharath Chandra Guntuku, Sunny Rai","cross_cats":["cs.HC"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2025-04-29T07:59:46Z","title":"Large Language Model Chatbot Conversations vs Public Health Materials and Parental HPV Vaccination Intentions: A Randomized Clinical Trial"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.20519","kind":"arxiv","version":5},"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":"sha256:7e0ca63de2157d21c7433f567ec8d60f77692b6e3e67d0cbf54a67aee104be92","target":"record","created_at":"2026-06-10T01:09:16Z","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":"5c907b621eb945adbf38226504f266ca3f79607798f9f8f3cb051792614fd96e","cross_cats_sorted":["cs.HC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CY","submitted_at":"2025-04-29T07:59:46Z","title_canon_sha256":"4b4de17b611d41a0a098ca6a1dd2b9dbe26765a02a3f4e17657c4d6899be166e"},"schema_version":"1.0","source":{"id":"2504.20519","kind":"arxiv","version":5}},"canonical_sha256":"f891304a3eaa26d4969281f4b366dd5749fba95e557636f3e332f56c6dc6f522","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f891304a3eaa26d4969281f4b366dd5749fba95e557636f3e332f56c6dc6f522","first_computed_at":"2026-06-10T01:09:16.656716Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-10T01:09:16.656716Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7bXeEAJknTxPV3Q4dVaT0nh4bYJzbhCIUuH6X8ezeJ7IiX+i/8Mq+EWc8dx69lfNWq809rGuvh6pP6HX3tcWAQ==","signature_status":"signed_v1","signed_at":"2026-06-10T01:09:16.657720Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.20519","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7e0ca63de2157d21c7433f567ec8d60f77692b6e3e67d0cbf54a67aee104be92","sha256:4ec85ddcc77505a89fd7bb7b9fd3f5a94fd9374c8f2d958d2b29914d882ef240"],"state_sha256":"ec53dfd0236df466198af40f63554d6e130c664b27140bd41f998fd28f4c32c4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MgXHuquARt0xPxGc+Sj2tL9YP54zC7SqZ8pnDyD0lUtH+/JueXjNvGhlYzbe41tHiYJGB299Pa7mTW1ftCUSCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T06:49:57.266866Z","bundle_sha256":"a1c68c0efe24621ae5f2ad26da4431ed50bdd32a6156268fed4610432b1c7ab1"}}