{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZXHCATGMRJA7SYNV5MYZZGFBLH","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":"378911452fa4b09fc4c764a7d6a5eca19a455d0e08f241dd1f71223b1229798e","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-05-14T22:57:15Z","title_canon_sha256":"b20dadb187f537ea57b76a442ae8d298187f44bcdd38021bddd24db53b848b4b"},"schema_version":"1.0","source":{"id":"1205.3212","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.3212","created_at":"2026-05-18T03:55:36Z"},{"alias_kind":"arxiv_version","alias_value":"1205.3212v1","created_at":"2026-05-18T03:55:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.3212","created_at":"2026-05-18T03:55:36Z"},{"alias_kind":"pith_short_12","alias_value":"ZXHCATGMRJA7","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZXHCATGMRJA7SYNV","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZXHCATGM","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:9e095704684e2c0f8e714e82bb6676934b715895869f06ef8d4c92f0ef09dfc2","target":"graph","created_at":"2026-05-18T03:55:36Z","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":"We report our experience in building a working system, SportSense (http://www.sportsense.us), which exploits Twitter users as human sensors of the physical world to detect events in real-time. Using the US National Football League (NFL) games as a case study, we report in-depth measurement studies of the delay and post rate of tweets, and their dependence on other properties. We subsequently develop a novel event detection method based on these findings, and demonstrate that it can effectively and accurately extract game events using open access Twitter data. SportSense has been evolving durin","authors_text":"Ahmad Rahmati, Jehan Wickramasuriya, Lin Zhong, Robert LiKamWa, Siqi Zhao, Venu Vasudevan","cross_cats":["physics.soc-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-05-14T22:57:15Z","title":"SportSense: Real-Time Detection of NFL Game Events from Twitter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.3212","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:aa10e689d95ffa9f277b1314a2333bdb85c7384d6c88327be1c8866e6cc4427c","target":"record","created_at":"2026-05-18T03:55:36Z","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":"378911452fa4b09fc4c764a7d6a5eca19a455d0e08f241dd1f71223b1229798e","cross_cats_sorted":["physics.soc-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SI","submitted_at":"2012-05-14T22:57:15Z","title_canon_sha256":"b20dadb187f537ea57b76a442ae8d298187f44bcdd38021bddd24db53b848b4b"},"schema_version":"1.0","source":{"id":"1205.3212","kind":"arxiv","version":1}},"canonical_sha256":"cdce204ccc8a41f961b5eb319c98a159d5a970f2740fdd6c9a5f8cc1c4881374","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cdce204ccc8a41f961b5eb319c98a159d5a970f2740fdd6c9a5f8cc1c4881374","first_computed_at":"2026-05-18T03:55:36.622168Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:55:36.622168Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c5ughk7KFg37l+aewsevJUDPV9Fud3TkgPPpNEqgge6f2/XFpeiUR/qGrUvGso7mk1eILsatmPI2HF61QsK7Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T03:55:36.622848Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.3212","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa10e689d95ffa9f277b1314a2333bdb85c7384d6c88327be1c8866e6cc4427c","sha256:9e095704684e2c0f8e714e82bb6676934b715895869f06ef8d4c92f0ef09dfc2"],"state_sha256":"1ed262a14019a645f1e01c7c5ae2d45e92ed9a159e18539625f4bd5cd0d25d43"}