{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:MK5B4XXLXAFR23HERBSEN77EF6","short_pith_number":"pith:MK5B4XXL","canonical_record":{"source":{"id":"1207.1189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-07-05T08:32:11Z","cross_cats_sorted":["nlin.CG"],"title_canon_sha256":"d09f1d422eebaa17f6937fde13d43c04dd8cd9c4d66e52fd93f2be7bf70f7e85","abstract_canon_sha256":"2bfb15bc006a0716b7c709d643d2fc15d74056226c0a07bee0baeac5d979cb2e"},"schema_version":"1.0"},"canonical_sha256":"62ba1e5eebb80b1d6ce4886446ffe42f95e5b02a5cfaa91180ba8619a5ff5269","source":{"kind":"arxiv","id":"1207.1189","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1189","created_at":"2026-05-18T03:51:46Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1189v1","created_at":"2026-05-18T03:51:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1189","created_at":"2026-05-18T03:51:46Z"},{"alias_kind":"pith_short_12","alias_value":"MK5B4XXLXAFR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MK5B4XXLXAFR23HE","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MK5B4XXL","created_at":"2026-05-18T12:27:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:MK5B4XXLXAFR23HERBSEN77EF6","target":"record","payload":{"canonical_record":{"source":{"id":"1207.1189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-07-05T08:32:11Z","cross_cats_sorted":["nlin.CG"],"title_canon_sha256":"d09f1d422eebaa17f6937fde13d43c04dd8cd9c4d66e52fd93f2be7bf70f7e85","abstract_canon_sha256":"2bfb15bc006a0716b7c709d643d2fc15d74056226c0a07bee0baeac5d979cb2e"},"schema_version":"1.0"},"canonical_sha256":"62ba1e5eebb80b1d6ce4886446ffe42f95e5b02a5cfaa91180ba8619a5ff5269","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:51:46.653236Z","signature_b64":"isHs12XlruJeN43CyrHiXMQqx2EVU6syLN8KfhBlkJ8YHC4WNNN4y6V0MagPx5qkpo0vQROHna6L8It5918lAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62ba1e5eebb80b1d6ce4886446ffe42f95e5b02a5cfaa91180ba8619a5ff5269","last_reissued_at":"2026-05-18T03:51:46.652644Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:51:46.652644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.1189","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":"2026-05-18T03:51:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gEltivntVkH06UGIcZJK6jbQF6kUklSOC1wG1E2CRgdZ4b+RjgqyeWovdYUvKlnI93OGwE9nUl54IQ0OXcHlCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:40:06.770120Z"},"content_sha256":"3a565e1c952118470e8b5808ead86132cdf16fe607d6fa3a448590b9197209b9","schema_version":"1.0","event_id":"sha256:3a565e1c952118470e8b5808ead86132cdf16fe607d6fa3a448590b9197209b9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:MK5B4XXLXAFR23HERBSEN77EF6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modeling the desired direction in a force-based model for pedestrian dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nlin.CG"],"primary_cat":"physics.soc-ph","authors_text":"Andreas Schadschneider, Armin Seyfried, Martina Freialdenhoven, Mohcine Chraibi","submitted_at":"2012-07-05T08:32:11Z","abstract_excerpt":"We introduce an enhanced model based on the generalized centrifugal force model. Furthermore, the desired direction of pedestrians is investigated. A new approach leaning on the well-known concept of static and dynamic floor-fields in cellular automata is presented. Numerical results of the model are presented and compared with empirical data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1189","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":"2026-05-18T03:51:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F5qmLbQXdrv0vK7E71DRKx7MEuPSVy85exCGLhXiF73rFzkDsHFtoIQUUlsi7JnoKRFZJYZIVLoHfhjJNzoQAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T20:40:06.770478Z"},"content_sha256":"2654c8c99d57badcfd157b1a0a3125190843cbb0e26a569b3ad52462cd34193b","schema_version":"1.0","event_id":"sha256:2654c8c99d57badcfd157b1a0a3125190843cbb0e26a569b3ad52462cd34193b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MK5B4XXLXAFR23HERBSEN77EF6/bundle.json","state_url":"https://pith.science/pith/MK5B4XXLXAFR23HERBSEN77EF6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MK5B4XXLXAFR23HERBSEN77EF6/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":"2026-06-03T20:40:06Z","links":{"resolver":"https://pith.science/pith/MK5B4XXLXAFR23HERBSEN77EF6","bundle":"https://pith.science/pith/MK5B4XXLXAFR23HERBSEN77EF6/bundle.json","state":"https://pith.science/pith/MK5B4XXLXAFR23HERBSEN77EF6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MK5B4XXLXAFR23HERBSEN77EF6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:MK5B4XXLXAFR23HERBSEN77EF6","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":"2bfb15bc006a0716b7c709d643d2fc15d74056226c0a07bee0baeac5d979cb2e","cross_cats_sorted":["nlin.CG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-07-05T08:32:11Z","title_canon_sha256":"d09f1d422eebaa17f6937fde13d43c04dd8cd9c4d66e52fd93f2be7bf70f7e85"},"schema_version":"1.0","source":{"id":"1207.1189","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.1189","created_at":"2026-05-18T03:51:46Z"},{"alias_kind":"arxiv_version","alias_value":"1207.1189v1","created_at":"2026-05-18T03:51:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.1189","created_at":"2026-05-18T03:51:46Z"},{"alias_kind":"pith_short_12","alias_value":"MK5B4XXLXAFR","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"MK5B4XXLXAFR23HE","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"MK5B4XXL","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:2654c8c99d57badcfd157b1a0a3125190843cbb0e26a569b3ad52462cd34193b","target":"graph","created_at":"2026-05-18T03:51:46Z","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 introduce an enhanced model based on the generalized centrifugal force model. Furthermore, the desired direction of pedestrians is investigated. A new approach leaning on the well-known concept of static and dynamic floor-fields in cellular automata is presented. Numerical results of the model are presented and compared with empirical data.","authors_text":"Andreas Schadschneider, Armin Seyfried, Martina Freialdenhoven, Mohcine Chraibi","cross_cats":["nlin.CG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-07-05T08:32:11Z","title":"Modeling the desired direction in a force-based model for pedestrian dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.1189","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":"sha256:3a565e1c952118470e8b5808ead86132cdf16fe607d6fa3a448590b9197209b9","target":"record","created_at":"2026-05-18T03:51:46Z","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":"2bfb15bc006a0716b7c709d643d2fc15d74056226c0a07bee0baeac5d979cb2e","cross_cats_sorted":["nlin.CG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.soc-ph","submitted_at":"2012-07-05T08:32:11Z","title_canon_sha256":"d09f1d422eebaa17f6937fde13d43c04dd8cd9c4d66e52fd93f2be7bf70f7e85"},"schema_version":"1.0","source":{"id":"1207.1189","kind":"arxiv","version":1}},"canonical_sha256":"62ba1e5eebb80b1d6ce4886446ffe42f95e5b02a5cfaa91180ba8619a5ff5269","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62ba1e5eebb80b1d6ce4886446ffe42f95e5b02a5cfaa91180ba8619a5ff5269","first_computed_at":"2026-05-18T03:51:46.652644Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:51:46.652644Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"isHs12XlruJeN43CyrHiXMQqx2EVU6syLN8KfhBlkJ8YHC4WNNN4y6V0MagPx5qkpo0vQROHna6L8It5918lAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:51:46.653236Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.1189","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a565e1c952118470e8b5808ead86132cdf16fe607d6fa3a448590b9197209b9","sha256:2654c8c99d57badcfd157b1a0a3125190843cbb0e26a569b3ad52462cd34193b"],"state_sha256":"975db0c792b00cd39024ff80b9ee359743596990833dc0e96dfd62698796edd4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O28f3JQSZws8s5dZAU/+9uYfhlXJkb/ez1nTXxEw32R5Ay4p10mu1bRAezzho9dNvN4JTgPMgl90f3aoh0UVDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T20:40:06.772677Z","bundle_sha256":"64d5eb14307399c6e7dd3b2a8674b80bd03c7a78a6c7434761d5e887c5bb6992"}}