{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:M5UN4OUSFACMQU7RBBC7UUATWC","short_pith_number":"pith:M5UN4OUS","canonical_record":{"source":{"id":"1707.06112","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-07-19T14:28:05Z","cross_cats_sorted":[],"title_canon_sha256":"b50615efe8c5caf079b0d6ba81cf2133468458e26d7db78153acb4cfe323b5bb","abstract_canon_sha256":"b7d398f8d7d684c5207a306b7c785f7b7578e1c79c8c897709c6c79c745a9b76"},"schema_version":"1.0"},"canonical_sha256":"6768de3a922804c853f10845fa5013b080e9fb46fd18819610aa16a3dbb26eb2","source":{"kind":"arxiv","id":"1707.06112","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06112","created_at":"2026-05-18T00:39:57Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06112v1","created_at":"2026-05-18T00:39:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06112","created_at":"2026-05-18T00:39:57Z"},{"alias_kind":"pith_short_12","alias_value":"M5UN4OUSFACM","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"M5UN4OUSFACMQU7R","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"M5UN4OUS","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:M5UN4OUSFACMQU7RBBC7UUATWC","target":"record","payload":{"canonical_record":{"source":{"id":"1707.06112","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-07-19T14:28:05Z","cross_cats_sorted":[],"title_canon_sha256":"b50615efe8c5caf079b0d6ba81cf2133468458e26d7db78153acb4cfe323b5bb","abstract_canon_sha256":"b7d398f8d7d684c5207a306b7c785f7b7578e1c79c8c897709c6c79c745a9b76"},"schema_version":"1.0"},"canonical_sha256":"6768de3a922804c853f10845fa5013b080e9fb46fd18819610aa16a3dbb26eb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:57.597632Z","signature_b64":"/hKf7NT2TvQ8+NQKaTS6UP5FSfgXMgBHco6bwONC2t6xS1HCfOnkn9TrPaHwMVm7Ln2cwabAud1iwg+uSglcDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6768de3a922804c853f10845fa5013b080e9fb46fd18819610aa16a3dbb26eb2","last_reissued_at":"2026-05-18T00:39:57.597185Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:57.597185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.06112","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":"2026-05-18T00:39:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dfNAlwlOtK0HvQOD9SXxTmpYrv15IS8vq9H27FpgIzjF6lGOARnzHyq5Vp8b/5s5e/TlM7RH8W0y2TGnAmlOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:30:04.263592Z"},"content_sha256":"2bf8781ee5663ba11cd7766eb7c397c77cdfe20fb16d61784321f90ea345c572","schema_version":"1.0","event_id":"sha256:2bf8781ee5663ba11cd7766eb7c397c77cdfe20fb16d61784321f90ea345c572"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:M5UN4OUSFACMQU7RBBC7UUATWC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microblog Retrieval for Post-Disaster Relief: Applying and Comparing Neural IR Models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Kripabandhu Ghosh, Moumita Basu, Prannay Khosla, Saptarshi Ghosh","submitted_at":"2017-07-19T14:28:05Z","abstract_excerpt":"Microblogging sites like Twitter and Weibo have emerged as important sourcesof real-time information on ongoing events, including socio-political events, emergency events, and so on. For instance, during emergency events (such as earthquakes, floods, terror attacks), microblogging sites are very useful for gathering situational information in real-time. During such an event, typically only a small fraction of the microblogs (tweets) posted are relevant to the information need. Hence, it is necessary to design effective methodologies for microblog retrieval, so that the relevant tweets can be a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06112","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":""},"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":"2026-05-18T00:39:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c5oxVcz7YRLG1m3Gp23NgA8SIPmiKX5Ncu2x7tT7WuEnLKD9jcm3Lx5CjVz9EOceHnNkVaruxxenUs1QYPZ1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T06:30:04.263934Z"},"content_sha256":"d13a6fb26edf4b50bd8f8b23b40e6d5b1670c8a113dc16d0c87d77bcc556526c","schema_version":"1.0","event_id":"sha256:d13a6fb26edf4b50bd8f8b23b40e6d5b1670c8a113dc16d0c87d77bcc556526c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M5UN4OUSFACMQU7RBBC7UUATWC/bundle.json","state_url":"https://pith.science/pith/M5UN4OUSFACMQU7RBBC7UUATWC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M5UN4OUSFACMQU7RBBC7UUATWC/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":"2026-06-02T06:30:04Z","links":{"resolver":"https://pith.science/pith/M5UN4OUSFACMQU7RBBC7UUATWC","bundle":"https://pith.science/pith/M5UN4OUSFACMQU7RBBC7UUATWC/bundle.json","state":"https://pith.science/pith/M5UN4OUSFACMQU7RBBC7UUATWC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M5UN4OUSFACMQU7RBBC7UUATWC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:M5UN4OUSFACMQU7RBBC7UUATWC","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":"b7d398f8d7d684c5207a306b7c785f7b7578e1c79c8c897709c6c79c745a9b76","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-07-19T14:28:05Z","title_canon_sha256":"b50615efe8c5caf079b0d6ba81cf2133468458e26d7db78153acb4cfe323b5bb"},"schema_version":"1.0","source":{"id":"1707.06112","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.06112","created_at":"2026-05-18T00:39:57Z"},{"alias_kind":"arxiv_version","alias_value":"1707.06112v1","created_at":"2026-05-18T00:39:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.06112","created_at":"2026-05-18T00:39:57Z"},{"alias_kind":"pith_short_12","alias_value":"M5UN4OUSFACM","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"M5UN4OUSFACMQU7R","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"M5UN4OUS","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:d13a6fb26edf4b50bd8f8b23b40e6d5b1670c8a113dc16d0c87d77bcc556526c","target":"graph","created_at":"2026-05-18T00:39:57Z","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"},"paper":{"abstract_excerpt":"Microblogging sites like Twitter and Weibo have emerged as important sourcesof real-time information on ongoing events, including socio-political events, emergency events, and so on. For instance, during emergency events (such as earthquakes, floods, terror attacks), microblogging sites are very useful for gathering situational information in real-time. During such an event, typically only a small fraction of the microblogs (tweets) posted are relevant to the information need. Hence, it is necessary to design effective methodologies for microblog retrieval, so that the relevant tweets can be a","authors_text":"Kripabandhu Ghosh, Moumita Basu, Prannay Khosla, Saptarshi Ghosh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-07-19T14:28:05Z","title":"Microblog Retrieval for Post-Disaster Relief: Applying and Comparing Neural IR Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.06112","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":"sha256:2bf8781ee5663ba11cd7766eb7c397c77cdfe20fb16d61784321f90ea345c572","target":"record","created_at":"2026-05-18T00:39:57Z","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":"b7d398f8d7d684c5207a306b7c785f7b7578e1c79c8c897709c6c79c745a9b76","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-07-19T14:28:05Z","title_canon_sha256":"b50615efe8c5caf079b0d6ba81cf2133468458e26d7db78153acb4cfe323b5bb"},"schema_version":"1.0","source":{"id":"1707.06112","kind":"arxiv","version":1}},"canonical_sha256":"6768de3a922804c853f10845fa5013b080e9fb46fd18819610aa16a3dbb26eb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6768de3a922804c853f10845fa5013b080e9fb46fd18819610aa16a3dbb26eb2","first_computed_at":"2026-05-18T00:39:57.597185Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:57.597185Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/hKf7NT2TvQ8+NQKaTS6UP5FSfgXMgBHco6bwONC2t6xS1HCfOnkn9TrPaHwMVm7Ln2cwabAud1iwg+uSglcDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:57.597632Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.06112","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2bf8781ee5663ba11cd7766eb7c397c77cdfe20fb16d61784321f90ea345c572","sha256:d13a6fb26edf4b50bd8f8b23b40e6d5b1670c8a113dc16d0c87d77bcc556526c"],"state_sha256":"17fe599f8ed8035e324d6515a9689dcb3dd032bc8ee0f9bab9a95cd01f2365a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"win+fx0YIWJHNwBVsbudHGDDXnKMoOoN5o7PSH3ec1aKYlQb0g98KyCtTak2DNLheMySHWjfE0MMT0+su72eCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T06:30:04.265779Z","bundle_sha256":"36707b9d1d8a1cf428b417ed87ca6e8000b58d0ac0d31183dbfd1c2948a07c93"}}