{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:DZFZZCUZHPDQGCS25TI6UXDEVO","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":"5dad44580cfad98a5836ee3885258d3cbe5ec1827d73f06888b13481bc1c58df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2013-03-15T17:06:22Z","title_canon_sha256":"85e3fa9daa61c425f5c686e9bea6f4b94154fcb182b49ae11745eccca30d5702"},"schema_version":"1.0","source":{"id":"1303.4696","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1303.4696","created_at":"2026-05-18T03:30:26Z"},{"alias_kind":"arxiv_version","alias_value":"1303.4696v1","created_at":"2026-05-18T03:30:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1303.4696","created_at":"2026-05-18T03:30:26Z"},{"alias_kind":"pith_short_12","alias_value":"DZFZZCUZHPDQ","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DZFZZCUZHPDQGCS2","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DZFZZCUZ","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:bbe649b064b79c7a556ac29d80f7f6bb50bc1f9140cc03b9201dc25acd7fddf2","target":"graph","created_at":"2026-05-18T03:30:26Z","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":"In this paper we report on a methodology to model pedestrian behaviours whilst aggregate variables are concerned, with potential applications to different situations, such as evacuating a building in emergency events. The approach consists of using UWB (ultra-wide band) based data collection to characterise behaviour in specific scenarios. From a number of experiments carried out, we detail the single-file scenario to demonstrate the ability of this approach to represent macroscopic characteristics of the pedestrian flow. Results are discussed and we can conclude that UWB-based data collection","authors_text":"Ant\\'onio Le\\c{c}a Coelho, Gon\\c{c}alo Vasconcelos, Jo\\~ao Em\\'ilio Almeida, Marcelo Petry, Rosaldo J. F. Rossetti","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2013-03-15T17:06:22Z","title":"Using UWB for Human Trajectory Extraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1303.4696","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:fcc688b0f3988e9e175eacd3d599fed3d899e557134bf9141a6ecca10daddc78","target":"record","created_at":"2026-05-18T03:30:26Z","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":"5dad44580cfad98a5836ee3885258d3cbe5ec1827d73f06888b13481bc1c58df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.OH","submitted_at":"2013-03-15T17:06:22Z","title_canon_sha256":"85e3fa9daa61c425f5c686e9bea6f4b94154fcb182b49ae11745eccca30d5702"},"schema_version":"1.0","source":{"id":"1303.4696","kind":"arxiv","version":1}},"canonical_sha256":"1e4b9c8a993bc7030a5aecd1ea5c64abb829c5098af396bb4fe03bea1ed125f2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e4b9c8a993bc7030a5aecd1ea5c64abb829c5098af396bb4fe03bea1ed125f2","first_computed_at":"2026-05-18T03:30:26.477051Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:30:26.477051Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3eLOQVVWVJS1MToZZcjkcSTHyUbyp4fXZGNgYQGeO3uikWxigVc8+9WXw0bBImOsotebns/bis+qIYO+mPzBCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:30:26.477556Z","signed_message":"canonical_sha256_bytes"},"source_id":"1303.4696","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fcc688b0f3988e9e175eacd3d599fed3d899e557134bf9141a6ecca10daddc78","sha256:bbe649b064b79c7a556ac29d80f7f6bb50bc1f9140cc03b9201dc25acd7fddf2"],"state_sha256":"ab1b64809a9b910b5f0ecfce423182b26828cfcaaa61047d0258d2e269eafd13"}