{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XLQPFJNPJ7NCPRCBCU2344N7DW","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":"fdbcb4c83e2b0d23afbd4af8751d802fd000606e2d6c13b08c69aa8fdaa27fe9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2026-05-19T19:25:52Z","title_canon_sha256":"6577f40f2311236e766479808457a50be5322ba43b547acd66ed508b4ba733c3"},"schema_version":"1.0","source":{"id":"2605.20429","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.20429","created_at":"2026-05-21T01:04:37Z"},{"alias_kind":"arxiv_version","alias_value":"2605.20429v1","created_at":"2026-05-21T01:04:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.20429","created_at":"2026-05-21T01:04:37Z"},{"alias_kind":"pith_short_12","alias_value":"XLQPFJNPJ7NC","created_at":"2026-05-21T01:04:37Z"},{"alias_kind":"pith_short_16","alias_value":"XLQPFJNPJ7NCPRCB","created_at":"2026-05-21T01:04:37Z"},{"alias_kind":"pith_short_8","alias_value":"XLQPFJNP","created_at":"2026-05-21T01:04:37Z"}],"graph_snapshots":[{"event_id":"sha256:c4bd5390460403c9c3ea7ade5e3aaf02103593905b19289bb4ac1b965752509a","target":"graph","created_at":"2026-05-21T01:04:37Z","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/2605.20429/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurately detecting home locations from GPS data generated by mobile devices is a foundational step in human mobility research, with significant implications for transportation planning, public health, and emergency response. However, existing home detection algorithms often produce unreliable results for noisy real-world data and are barely validated due to a lack of ground-truth benchmarks. To tackle these limitations, this study presents the development and validation of a Grid-based home detection via Stay-Time (GHOST) algorithm, implemented as an open-source Python package. The algorithm","authors_text":"Alessandra Recalde, Mustafa Sameen, Xiaojian Zhang, Xilei Zhao","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2026-05-19T19:25:52Z","title":"Design and Validation of a Grid-based Home Detection via Stay-Time (GHOST) Software for Mobile Location Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.20429","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":"sha256:4f33eefc16c5852d8e6beb15d6eef755a9ebe0757d7e2f33f287dd298c37263e","target":"record","created_at":"2026-05-21T01:04:37Z","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":"fdbcb4c83e2b0d23afbd4af8751d802fd000606e2d6c13b08c69aa8fdaa27fe9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"stat.AP","submitted_at":"2026-05-19T19:25:52Z","title_canon_sha256":"6577f40f2311236e766479808457a50be5322ba43b547acd66ed508b4ba733c3"},"schema_version":"1.0","source":{"id":"2605.20429","kind":"arxiv","version":1}},"canonical_sha256":"bae0f2a5af4fda27c4411535be71bf1db08eca89eced34fc8cc15a2ab109915c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bae0f2a5af4fda27c4411535be71bf1db08eca89eced34fc8cc15a2ab109915c","first_computed_at":"2026-05-21T01:04:37.608848Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T01:04:37.608848Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7LFKNj6MWloIjxj8XjGYcX2AsE9zIF4JeRHfoa21+u+kM5Rod/Qmd8Qh7gfVUK3NPhpvGLZ15XuEmmOLe8rSBQ==","signature_status":"signed_v1","signed_at":"2026-05-21T01:04:37.609443Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.20429","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4f33eefc16c5852d8e6beb15d6eef755a9ebe0757d7e2f33f287dd298c37263e","sha256:c4bd5390460403c9c3ea7ade5e3aaf02103593905b19289bb4ac1b965752509a"],"state_sha256":"c075eaaf7864ba33bc60f01d2fe873323e2cec4716d46e755df64f0c994be5ef"}