{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:GYXVAHXWX2PD6DKUQY45U2XRDJ","short_pith_number":"pith:GYXVAHXW","canonical_record":{"source":{"id":"1002.1382","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2010-02-06T13:36:58Z","cross_cats_sorted":[],"title_canon_sha256":"1a0f8e9fe6a13ef3a3077b6930ac7ba7d9e4864173daa0574944f511c4774e47","abstract_canon_sha256":"d3f5a7d39eb965bde544a5dc8546acf5528abc1e9e534f5fde8c514ea08e3297"},"schema_version":"1.0"},"canonical_sha256":"362f501ef6be9e3f0d548639da6af11a774cd9db388d33c36e04b6159064efa7","source":{"kind":"arxiv","id":"1002.1382","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.1382","created_at":"2026-05-18T02:09:18Z"},{"alias_kind":"arxiv_version","alias_value":"1002.1382v2","created_at":"2026-05-18T02:09:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.1382","created_at":"2026-05-18T02:09:18Z"},{"alias_kind":"pith_short_12","alias_value":"GYXVAHXWX2PD","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GYXVAHXWX2PD6DKU","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GYXVAHXW","created_at":"2026-05-18T12:26:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:GYXVAHXWX2PD6DKUQY45U2XRDJ","target":"record","payload":{"canonical_record":{"source":{"id":"1002.1382","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2010-02-06T13:36:58Z","cross_cats_sorted":[],"title_canon_sha256":"1a0f8e9fe6a13ef3a3077b6930ac7ba7d9e4864173daa0574944f511c4774e47","abstract_canon_sha256":"d3f5a7d39eb965bde544a5dc8546acf5528abc1e9e534f5fde8c514ea08e3297"},"schema_version":"1.0"},"canonical_sha256":"362f501ef6be9e3f0d548639da6af11a774cd9db388d33c36e04b6159064efa7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:18.739047Z","signature_b64":"0/qBvT9cBCZy8gfeEA0d5yUxKWubE/opWl6y8HKZz+03JrproLw1XjNHunzSARC2pZle2l5EcM2ETE8UMpwgCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"362f501ef6be9e3f0d548639da6af11a774cd9db388d33c36e04b6159064efa7","last_reissued_at":"2026-05-18T02:09:18.738187Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:18.738187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1002.1382","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:09:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5hnsz+EKe6gkGoxob20q09/UJNq7rt0Ojx6uhrSZ0r/xnKxcGS5KcNleifRaYPZkfC4j/yuhgxPV413KPZypDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T18:31:33.041540Z"},"content_sha256":"9f1ed14b9ec0794b27ad6f120224ea10a9c8a6dcfb9f06bc18c4ca634f367d8e","schema_version":"1.0","event_id":"sha256:9f1ed14b9ec0794b27ad6f120224ea10a9c8a6dcfb9f06bc18c4ca634f367d8e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:GYXVAHXWX2PD6DKUQY45U2XRDJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Calibration of the Particle Density in Cellular-Automaton Models for Traffic Flow","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nlin.CG","authors_text":"Masahiro Kanai","submitted_at":"2010-02-06T13:36:58Z","abstract_excerpt":"We introduce density dependence of the cell size in cellular-automaton models for traffic flow, which allows a more precise correspondence between real-world phenomena and what observed in simulation. Also, we give an explicit calibration of the particle density particularly for the asymmetric simple exclusion process with some update rules. We thus find that the present method is valid in that it reproduces a realistic flow-density diagram."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.1382","kind":"arxiv","version":2},"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":"2026-05-18T02:09:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CDvuknbI8bkJwT0HEdcxbK/a/ReEo8cH8TsR8mOO35EXU3bZdWt/K2pUjLpecgUpNG71dn1+/xSVkMtWl6l4DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T18:31:33.041878Z"},"content_sha256":"96c3dd5f88ab69df0abd49b7dcd13f0d2343dcbbbfaa8f9e03d45b98c54dba64","schema_version":"1.0","event_id":"sha256:96c3dd5f88ab69df0abd49b7dcd13f0d2343dcbbbfaa8f9e03d45b98c54dba64"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ/bundle.json","state_url":"https://pith.science/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ/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":"2026-06-23T18:31:33Z","links":{"resolver":"https://pith.science/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ","bundle":"https://pith.science/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ/bundle.json","state":"https://pith.science/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GYXVAHXWX2PD6DKUQY45U2XRDJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:GYXVAHXWX2PD6DKUQY45U2XRDJ","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":"d3f5a7d39eb965bde544a5dc8546acf5528abc1e9e534f5fde8c514ea08e3297","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2010-02-06T13:36:58Z","title_canon_sha256":"1a0f8e9fe6a13ef3a3077b6930ac7ba7d9e4864173daa0574944f511c4774e47"},"schema_version":"1.0","source":{"id":"1002.1382","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1002.1382","created_at":"2026-05-18T02:09:18Z"},{"alias_kind":"arxiv_version","alias_value":"1002.1382v2","created_at":"2026-05-18T02:09:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1002.1382","created_at":"2026-05-18T02:09:18Z"},{"alias_kind":"pith_short_12","alias_value":"GYXVAHXWX2PD","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_16","alias_value":"GYXVAHXWX2PD6DKU","created_at":"2026-05-18T12:26:07Z"},{"alias_kind":"pith_short_8","alias_value":"GYXVAHXW","created_at":"2026-05-18T12:26:07Z"}],"graph_snapshots":[{"event_id":"sha256:96c3dd5f88ab69df0abd49b7dcd13f0d2343dcbbbfaa8f9e03d45b98c54dba64","target":"graph","created_at":"2026-05-18T02:09:18Z","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 density dependence of the cell size in cellular-automaton models for traffic flow, which allows a more precise correspondence between real-world phenomena and what observed in simulation. Also, we give an explicit calibration of the particle density particularly for the asymmetric simple exclusion process with some update rules. We thus find that the present method is valid in that it reproduces a realistic flow-density diagram.","authors_text":"Masahiro Kanai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2010-02-06T13:36:58Z","title":"Calibration of the Particle Density in Cellular-Automaton Models for Traffic Flow"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1002.1382","kind":"arxiv","version":2},"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":"sha256:9f1ed14b9ec0794b27ad6f120224ea10a9c8a6dcfb9f06bc18c4ca634f367d8e","target":"record","created_at":"2026-05-18T02:09:18Z","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":"d3f5a7d39eb965bde544a5dc8546acf5528abc1e9e534f5fde8c514ea08e3297","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.CG","submitted_at":"2010-02-06T13:36:58Z","title_canon_sha256":"1a0f8e9fe6a13ef3a3077b6930ac7ba7d9e4864173daa0574944f511c4774e47"},"schema_version":"1.0","source":{"id":"1002.1382","kind":"arxiv","version":2}},"canonical_sha256":"362f501ef6be9e3f0d548639da6af11a774cd9db388d33c36e04b6159064efa7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"362f501ef6be9e3f0d548639da6af11a774cd9db388d33c36e04b6159064efa7","first_computed_at":"2026-05-18T02:09:18.738187Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:18.738187Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0/qBvT9cBCZy8gfeEA0d5yUxKWubE/opWl6y8HKZz+03JrproLw1XjNHunzSARC2pZle2l5EcM2ETE8UMpwgCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:18.739047Z","signed_message":"canonical_sha256_bytes"},"source_id":"1002.1382","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f1ed14b9ec0794b27ad6f120224ea10a9c8a6dcfb9f06bc18c4ca634f367d8e","sha256:96c3dd5f88ab69df0abd49b7dcd13f0d2343dcbbbfaa8f9e03d45b98c54dba64"],"state_sha256":"703f559f2ec4f3339079fa48ca5c46bd2b407723bb70225d15108d998eee55cd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gQBHdV/cjNw23lQ0PWQk+peLIR4mA6Wqq6srNlwKXQoNoogi8onJ7iCt1/NdPtDH/MAdD6tZPEl2Ms0D0r5bAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T18:31:33.043756Z","bundle_sha256":"402438374713987d95b61e3a6269334fa8ae55835d5ed961b80ecd10f7cb7252"}}