{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:MICRQW4X5373QAXXILTDAC3L5V","short_pith_number":"pith:MICRQW4X","canonical_record":{"source":{"id":"2209.01621","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2022-09-04T13:46:54Z","cross_cats_sorted":["cs.AI","cs.HC","cs.IR"],"title_canon_sha256":"52f1a2e3fa38964258829d683edcd217e1a497cc9cbc9a12cce8815aedafb3ae","abstract_canon_sha256":"ff33865d61af1059eeb2c2e682a1269bd7aea4fb87a452c21619c5a24c4a8e20"},"schema_version":"1.0"},"canonical_sha256":"6205185b97eeffb802f742e6300b6bed49df95713599584ef924f08de8aa040d","source":{"kind":"arxiv","id":"2209.01621","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.01621","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"arxiv_version","alias_value":"2209.01621v3","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.01621","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"pith_short_12","alias_value":"MICRQW4X5373","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"pith_short_16","alias_value":"MICRQW4X5373QAXX","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"pith_short_8","alias_value":"MICRQW4X","created_at":"2026-07-05T08:09:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:MICRQW4X5373QAXXILTDAC3L5V","target":"record","payload":{"canonical_record":{"source":{"id":"2209.01621","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2022-09-04T13:46:54Z","cross_cats_sorted":["cs.AI","cs.HC","cs.IR"],"title_canon_sha256":"52f1a2e3fa38964258829d683edcd217e1a497cc9cbc9a12cce8815aedafb3ae","abstract_canon_sha256":"ff33865d61af1059eeb2c2e682a1269bd7aea4fb87a452c21619c5a24c4a8e20"},"schema_version":"1.0"},"canonical_sha256":"6205185b97eeffb802f742e6300b6bed49df95713599584ef924f08de8aa040d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:09:41.182602Z","signature_b64":"PwWsqRaVHs8zSOxv7RbqQfAGPRI4TB6Z1ZK+q0Ed4QRjJp3EG1RhkJqKkYA5gXBTUEELsdeT8VWvdSFRNsXvBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6205185b97eeffb802f742e6300b6bed49df95713599584ef924f08de8aa040d","last_reissued_at":"2026-07-05T08:09:41.182127Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:09:41.182127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.01621","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:09:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4vfyq18PwYAZZyMKq9LSANtLxvYeLmZSphggNHnkW+krClQPclNuUwWVWXznrSnOKIC3voEcEGUlOIyfML7hBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T06:46:00.441089Z"},"content_sha256":"07cba0fe1de6ad0496a1aad172ac8883219fe8394624ef61e819a709a3eeea3b","schema_version":"1.0","event_id":"sha256:07cba0fe1de6ad0496a1aad172ac8883219fe8394624ef61e819a709a3eeea3b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:MICRQW4X5373QAXXILTDAC3L5V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interactive Question Answering Systems: Literature Review","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.HC","cs.IR"],"primary_cat":"cs.CL","authors_text":"Eugenio Di Sciascio, Fedelucio Narducci, Giovanni Maria Biancofiore, Tommaso Di Noia, Yashar Deldjoo","submitted_at":"2022-09-04T13:46:54Z","abstract_excerpt":"Question answering systems are recognized as popular and frequently effective means of information seeking on the web. In such systems, information seekers can receive a concise response to their query by presenting their questions in natural language. Interactive question answering is a recently proposed and increasingly popular solution that resides at the intersection of question answering and dialogue systems. On the one hand, the user can ask questions in normal language and locate the actual response to her inquiry; on the other hand, the system can prolong the question-answering session"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.01621","kind":"arxiv","version":3},"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/2209.01621/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":"2026-07-05T08:09:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"54wMwEh/wUTZ+QBJlKuuFoZoAie8OFP4Ni/2W3o00gnW6E+1Q4R4jk3SNBP3vFPSoOmJh2QcjkiFgvyFflYHAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T06:46:00.442108Z"},"content_sha256":"32a60f711591abe8db7bf8a62a71f8a5f1612c0e7b9e9fe0f3a5563e719f2bdf","schema_version":"1.0","event_id":"sha256:32a60f711591abe8db7bf8a62a71f8a5f1612c0e7b9e9fe0f3a5563e719f2bdf"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MICRQW4X5373QAXXILTDAC3L5V/bundle.json","state_url":"https://pith.science/pith/MICRQW4X5373QAXXILTDAC3L5V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MICRQW4X5373QAXXILTDAC3L5V/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":"2026-08-22T06:46:00Z","links":{"resolver":"https://pith.science/pith/MICRQW4X5373QAXXILTDAC3L5V","bundle":"https://pith.science/pith/MICRQW4X5373QAXXILTDAC3L5V/bundle.json","state":"https://pith.science/pith/MICRQW4X5373QAXXILTDAC3L5V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MICRQW4X5373QAXXILTDAC3L5V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MICRQW4X5373QAXXILTDAC3L5V","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":"ff33865d61af1059eeb2c2e682a1269bd7aea4fb87a452c21619c5a24c4a8e20","cross_cats_sorted":["cs.AI","cs.HC","cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2022-09-04T13:46:54Z","title_canon_sha256":"52f1a2e3fa38964258829d683edcd217e1a497cc9cbc9a12cce8815aedafb3ae"},"schema_version":"1.0","source":{"id":"2209.01621","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.01621","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"arxiv_version","alias_value":"2209.01621v3","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.01621","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"pith_short_12","alias_value":"MICRQW4X5373","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"pith_short_16","alias_value":"MICRQW4X5373QAXX","created_at":"2026-07-05T08:09:41Z"},{"alias_kind":"pith_short_8","alias_value":"MICRQW4X","created_at":"2026-07-05T08:09:41Z"}],"graph_snapshots":[{"event_id":"sha256:32a60f711591abe8db7bf8a62a71f8a5f1612c0e7b9e9fe0f3a5563e719f2bdf","target":"graph","created_at":"2026-07-05T08:09:41Z","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/2209.01621/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Question answering systems are recognized as popular and frequently effective means of information seeking on the web. In such systems, information seekers can receive a concise response to their query by presenting their questions in natural language. Interactive question answering is a recently proposed and increasingly popular solution that resides at the intersection of question answering and dialogue systems. On the one hand, the user can ask questions in normal language and locate the actual response to her inquiry; on the other hand, the system can prolong the question-answering session","authors_text":"Eugenio Di Sciascio, Fedelucio Narducci, Giovanni Maria Biancofiore, Tommaso Di Noia, Yashar Deldjoo","cross_cats":["cs.AI","cs.HC","cs.IR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2022-09-04T13:46:54Z","title":"Interactive Question Answering Systems: Literature Review"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.01621","kind":"arxiv","version":3},"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":"sha256:07cba0fe1de6ad0496a1aad172ac8883219fe8394624ef61e819a709a3eeea3b","target":"record","created_at":"2026-07-05T08:09:41Z","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":"ff33865d61af1059eeb2c2e682a1269bd7aea4fb87a452c21619c5a24c4a8e20","cross_cats_sorted":["cs.AI","cs.HC","cs.IR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CL","submitted_at":"2022-09-04T13:46:54Z","title_canon_sha256":"52f1a2e3fa38964258829d683edcd217e1a497cc9cbc9a12cce8815aedafb3ae"},"schema_version":"1.0","source":{"id":"2209.01621","kind":"arxiv","version":3}},"canonical_sha256":"6205185b97eeffb802f742e6300b6bed49df95713599584ef924f08de8aa040d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6205185b97eeffb802f742e6300b6bed49df95713599584ef924f08de8aa040d","first_computed_at":"2026-07-05T08:09:41.182127Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:09:41.182127Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PwWsqRaVHs8zSOxv7RbqQfAGPRI4TB6Z1ZK+q0Ed4QRjJp3EG1RhkJqKkYA5gXBTUEELsdeT8VWvdSFRNsXvBA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:09:41.182602Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.01621","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:07cba0fe1de6ad0496a1aad172ac8883219fe8394624ef61e819a709a3eeea3b","sha256:32a60f711591abe8db7bf8a62a71f8a5f1612c0e7b9e9fe0f3a5563e719f2bdf"],"state_sha256":"1fbba791e756c55b6ef5093d2c3bde0fb65e231f2bbe871e1d63951e92ac75c3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jeR1xnZd8NGBqg93jnlTVipoPqS9jaKtZjvb4u0k4p5lv5dakeKg9kYV3534WGflRZnAkgZGjkpanf83ODH3Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T06:46:00.449687Z","bundle_sha256":"443a2e5c6749589d76419ca486f68eb343c42203a1b992dfa3824197f9e1d856"}}