{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:XZL4PXWMDE5WUCYHB3OTXKRIZZ","short_pith_number":"pith:XZL4PXWM","canonical_record":{"source":{"id":"1807.01195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-07-03T14:05:35Z","cross_cats_sorted":[],"title_canon_sha256":"b033ebf1feaefdd333bf595dc6fa69c2a539dcbf4a76e9f9cf64003f9410a9ea","abstract_canon_sha256":"0de21873dc2d2dbe7fa0d73e59fb8928666918082771e01bb1e8308c429df028"},"schema_version":"1.0"},"canonical_sha256":"be57c7decc193b6a0b070edd3baa28ce5bc8c4a9fc0ce66caa3ab519eff23ff2","source":{"kind":"arxiv","id":"1807.01195","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01195","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01195v1","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01195","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"XZL4PXWMDE5W","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"XZL4PXWMDE5WUCYH","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"XZL4PXWM","created_at":"2026-05-18T12:33:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:XZL4PXWMDE5WUCYHB3OTXKRIZZ","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01195","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-07-03T14:05:35Z","cross_cats_sorted":[],"title_canon_sha256":"b033ebf1feaefdd333bf595dc6fa69c2a539dcbf4a76e9f9cf64003f9410a9ea","abstract_canon_sha256":"0de21873dc2d2dbe7fa0d73e59fb8928666918082771e01bb1e8308c429df028"},"schema_version":"1.0"},"canonical_sha256":"be57c7decc193b6a0b070edd3baa28ce5bc8c4a9fc0ce66caa3ab519eff23ff2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:44.960362Z","signature_b64":"v9E5fn0YLDmLLdfEWzRg0F2JUvj0wu4liv8g53WSt4uuPKCIborA00yMwNNV3qXvUAaE0Ylk1s9bkrfRkmIwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be57c7decc193b6a0b070edd3baa28ce5bc8c4a9fc0ce66caa3ab519eff23ff2","last_reissued_at":"2026-05-18T00:11:44.959682Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:44.959682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01195","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":"2026-05-18T00:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DW7zAaH0U40poPTswZPgVFl2OBjOKDjY84RRGj8bzSWYkAEFmCXTtq7G05i99IGVbmx0djr8m3YLOGT/1k7ZDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T23:14:50.151376Z"},"content_sha256":"015db9b32469a4de1e93ca90e04237371e1bb927d075f18b1aa8a4cb3e9eccd1","schema_version":"1.0","event_id":"sha256:015db9b32469a4de1e93ca90e04237371e1bb927d075f18b1aa8a4cb3e9eccd1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:XZL4PXWMDE5WUCYHB3OTXKRIZZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reduced mobility of infected agents suppresses but lengthens disease in biased random walk","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.PE","authors_text":"Genki Ichinose, Hiroki Sayama, Takashi Nagatani, Yoshiki Satotani","submitted_at":"2018-07-03T14:05:35Z","abstract_excerpt":"Various theoretical models have been proposed to understand the basic nature of epidemics. Recent studies focus on the effects of mobility to epidemic process. However, uncorrelated random walk is typically assumed as the type of movement. In our daily life, the movement of people sometimes tends to be limited to a certain direction, which can be described by biased random walk. Here, we developed an agent-based model of susceptible-infected-recovered (SIR) epidemic process in a 2D continuous space where agents tend to move in a certain direction in addition to random movement. Moreover, we ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01195","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":"2026-05-18T00:11:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H2Xxz+TgjR2VrYnIygm6W7JxEWGYKolbrR3+H10b44gFGRlS38iM52yKvMA7K0w2l4QGquur/eA2K1QyUONoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T23:14:50.151736Z"},"content_sha256":"041c34d200a2b1816b82661b0ccbfad0b88b45c0a254455e57e9254c5ed68e03","schema_version":"1.0","event_id":"sha256:041c34d200a2b1816b82661b0ccbfad0b88b45c0a254455e57e9254c5ed68e03"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ/bundle.json","state_url":"https://pith.science/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ/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":"2026-07-02T23:14:50Z","links":{"resolver":"https://pith.science/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ","bundle":"https://pith.science/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ/bundle.json","state":"https://pith.science/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XZL4PXWMDE5WUCYHB3OTXKRIZZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:XZL4PXWMDE5WUCYHB3OTXKRIZZ","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":"0de21873dc2d2dbe7fa0d73e59fb8928666918082771e01bb1e8308c429df028","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-07-03T14:05:35Z","title_canon_sha256":"b033ebf1feaefdd333bf595dc6fa69c2a539dcbf4a76e9f9cf64003f9410a9ea"},"schema_version":"1.0","source":{"id":"1807.01195","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01195","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01195v1","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01195","created_at":"2026-05-18T00:11:44Z"},{"alias_kind":"pith_short_12","alias_value":"XZL4PXWMDE5W","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_16","alias_value":"XZL4PXWMDE5WUCYH","created_at":"2026-05-18T12:33:04Z"},{"alias_kind":"pith_short_8","alias_value":"XZL4PXWM","created_at":"2026-05-18T12:33:04Z"}],"graph_snapshots":[{"event_id":"sha256:041c34d200a2b1816b82661b0ccbfad0b88b45c0a254455e57e9254c5ed68e03","target":"graph","created_at":"2026-05-18T00:11:44Z","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":"Various theoretical models have been proposed to understand the basic nature of epidemics. Recent studies focus on the effects of mobility to epidemic process. However, uncorrelated random walk is typically assumed as the type of movement. In our daily life, the movement of people sometimes tends to be limited to a certain direction, which can be described by biased random walk. Here, we developed an agent-based model of susceptible-infected-recovered (SIR) epidemic process in a 2D continuous space where agents tend to move in a certain direction in addition to random movement. Moreover, we ma","authors_text":"Genki Ichinose, Hiroki Sayama, Takashi Nagatani, Yoshiki Satotani","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-07-03T14:05:35Z","title":"Reduced mobility of infected agents suppresses but lengthens disease in biased random walk"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01195","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":"sha256:015db9b32469a4de1e93ca90e04237371e1bb927d075f18b1aa8a4cb3e9eccd1","target":"record","created_at":"2026-05-18T00:11:44Z","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":"0de21873dc2d2dbe7fa0d73e59fb8928666918082771e01bb1e8308c429df028","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2018-07-03T14:05:35Z","title_canon_sha256":"b033ebf1feaefdd333bf595dc6fa69c2a539dcbf4a76e9f9cf64003f9410a9ea"},"schema_version":"1.0","source":{"id":"1807.01195","kind":"arxiv","version":1}},"canonical_sha256":"be57c7decc193b6a0b070edd3baa28ce5bc8c4a9fc0ce66caa3ab519eff23ff2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be57c7decc193b6a0b070edd3baa28ce5bc8c4a9fc0ce66caa3ab519eff23ff2","first_computed_at":"2026-05-18T00:11:44.959682Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:44.959682Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v9E5fn0YLDmLLdfEWzRg0F2JUvj0wu4liv8g53WSt4uuPKCIborA00yMwNNV3qXvUAaE0Ylk1s9bkrfRkmIwBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:44.960362Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01195","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:015db9b32469a4de1e93ca90e04237371e1bb927d075f18b1aa8a4cb3e9eccd1","sha256:041c34d200a2b1816b82661b0ccbfad0b88b45c0a254455e57e9254c5ed68e03"],"state_sha256":"b6c4013ea6ce32c5e1a68739259cecb5f5050b160e052396bf5f0cbb4f9e7774"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GBGGAeirGnMPhr2PXvXtHGDCnzZ/8qw6teIe/dQcRnAXUP3lMCunksvld7cY+rES9F36r8FI5iA+sCdqk6yzCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T23:14:50.153717Z","bundle_sha256":"3e62e665b5716bc4029c52cc283906b00c6622bdc94ba27a140b62288cd6e556"}}