{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:IFPKJDZFLIVYZ6CUMKZ32PJNB3","short_pith_number":"pith:IFPKJDZF","canonical_record":{"source":{"id":"1406.3383","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-06-12T22:30:06Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"e88dd6c942fb51c0328e23297a6cce7557d651884a52a105b8d8f355a86bc963","abstract_canon_sha256":"316b0431a611833fa23b07acb849890d14162286f3a5fe7fd6f24315e9f40a99"},"schema_version":"1.0"},"canonical_sha256":"415ea48f255a2b8cf85462b3bd3d2d0ec7610dbd88f511776b0c3c99aa91c40b","source":{"kind":"arxiv","id":"1406.3383","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.3383","created_at":"2026-05-18T00:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"1406.3383v1","created_at":"2026-05-18T00:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.3383","created_at":"2026-05-18T00:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"IFPKJDZFLIVY","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IFPKJDZFLIVYZ6CU","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IFPKJDZF","created_at":"2026-05-18T12:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:IFPKJDZFLIVYZ6CUMKZ32PJNB3","target":"record","payload":{"canonical_record":{"source":{"id":"1406.3383","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-06-12T22:30:06Z","cross_cats_sorted":["cond-mat.stat-mech"],"title_canon_sha256":"e88dd6c942fb51c0328e23297a6cce7557d651884a52a105b8d8f355a86bc963","abstract_canon_sha256":"316b0431a611833fa23b07acb849890d14162286f3a5fe7fd6f24315e9f40a99"},"schema_version":"1.0"},"canonical_sha256":"415ea48f255a2b8cf85462b3bd3d2d0ec7610dbd88f511776b0c3c99aa91c40b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:57.352488Z","signature_b64":"MhWHO5KQm2F5iZudbjRsro7xYEZxPXGLy01E+6OkFPiGjydWqyT08+Bzy+ta98JdS4ggen8fdC9njzKDwQCfAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"415ea48f255a2b8cf85462b3bd3d2d0ec7610dbd88f511776b0c3c99aa91c40b","last_reissued_at":"2026-05-18T00:28:57.351789Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:57.351789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.3383","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":"2026-05-18T00:28:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YjR2s1vTmsu6QMls3fKdRC4x/y/dM1XilErQVezJMQnDSdhCinYFUb7BlgVPlfezz9KQ5+63LM2ckuxK/9VSCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:22:36.407521Z"},"content_sha256":"a9e3b8de3706f0a3d8e671343493f42cb6a9d982e343a30d6db9ccff9d115e74","schema_version":"1.0","event_id":"sha256:a9e3b8de3706f0a3d8e671343493f42cb6a9d982e343a30d6db9ccff9d115e74"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:IFPKJDZFLIVYZ6CUMKZ32PJNB3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Absorbing Phase Transitions and Dynamic Freezing in Running Active Matter Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.stat-mech"],"primary_cat":"cond-mat.soft","authors_text":"C.J. Olson Reichhardt, C. Reichhardt","submitted_at":"2014-06-12T22:30:06Z","abstract_excerpt":"We examine a two-dimensional system of sterically repulsive interacting disks where each particle runs in a random direction. This system is equivalent to a run-and-tumble dynamics system in the limit where the run time is infinite. At low densities, we find a strongly fluctuating state composed of transient clusters. Above a critical density that is well below the density at which non-active particles would crystallize, the system can organize into a drifting quiescent or frozen state where the fluctuations are lost and large crystallites form surrounded by a small density of individual parti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.3383","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":"2026-05-18T00:28:57Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JRhTCh8KTqjigQDwaYSYgyQ5c0eW2H5T4UmTlV/3sDN0e1jS9X2GFxcPQa4+C/0ohEUdwp1XucLYS3dJuxjWCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T04:22:36.408244Z"},"content_sha256":"f1b957927df8fad73c958cf6ce160524a16ed2ac35b230519698c1c4a4cd27f7","schema_version":"1.0","event_id":"sha256:f1b957927df8fad73c958cf6ce160524a16ed2ac35b230519698c1c4a4cd27f7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3/bundle.json","state_url":"https://pith.science/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3/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":"2026-05-31T04:22:36Z","links":{"resolver":"https://pith.science/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3","bundle":"https://pith.science/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3/bundle.json","state":"https://pith.science/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IFPKJDZFLIVYZ6CUMKZ32PJNB3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:IFPKJDZFLIVYZ6CUMKZ32PJNB3","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":"316b0431a611833fa23b07acb849890d14162286f3a5fe7fd6f24315e9f40a99","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-06-12T22:30:06Z","title_canon_sha256":"e88dd6c942fb51c0328e23297a6cce7557d651884a52a105b8d8f355a86bc963"},"schema_version":"1.0","source":{"id":"1406.3383","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.3383","created_at":"2026-05-18T00:28:57Z"},{"alias_kind":"arxiv_version","alias_value":"1406.3383v1","created_at":"2026-05-18T00:28:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.3383","created_at":"2026-05-18T00:28:57Z"},{"alias_kind":"pith_short_12","alias_value":"IFPKJDZFLIVY","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"IFPKJDZFLIVYZ6CU","created_at":"2026-05-18T12:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"IFPKJDZF","created_at":"2026-05-18T12:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:f1b957927df8fad73c958cf6ce160524a16ed2ac35b230519698c1c4a4cd27f7","target":"graph","created_at":"2026-05-18T00:28:57Z","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 examine a two-dimensional system of sterically repulsive interacting disks where each particle runs in a random direction. This system is equivalent to a run-and-tumble dynamics system in the limit where the run time is infinite. At low densities, we find a strongly fluctuating state composed of transient clusters. Above a critical density that is well below the density at which non-active particles would crystallize, the system can organize into a drifting quiescent or frozen state where the fluctuations are lost and large crystallites form surrounded by a small density of individual parti","authors_text":"C.J. Olson Reichhardt, C. Reichhardt","cross_cats":["cond-mat.stat-mech"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-06-12T22:30:06Z","title":"Absorbing Phase Transitions and Dynamic Freezing in Running Active Matter Systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.3383","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:a9e3b8de3706f0a3d8e671343493f42cb6a9d982e343a30d6db9ccff9d115e74","target":"record","created_at":"2026-05-18T00:28:57Z","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":"316b0431a611833fa23b07acb849890d14162286f3a5fe7fd6f24315e9f40a99","cross_cats_sorted":["cond-mat.stat-mech"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2014-06-12T22:30:06Z","title_canon_sha256":"e88dd6c942fb51c0328e23297a6cce7557d651884a52a105b8d8f355a86bc963"},"schema_version":"1.0","source":{"id":"1406.3383","kind":"arxiv","version":1}},"canonical_sha256":"415ea48f255a2b8cf85462b3bd3d2d0ec7610dbd88f511776b0c3c99aa91c40b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"415ea48f255a2b8cf85462b3bd3d2d0ec7610dbd88f511776b0c3c99aa91c40b","first_computed_at":"2026-05-18T00:28:57.351789Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:28:57.351789Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MhWHO5KQm2F5iZudbjRsro7xYEZxPXGLy01E+6OkFPiGjydWqyT08+Bzy+ta98JdS4ggen8fdC9njzKDwQCfAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:28:57.352488Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.3383","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9e3b8de3706f0a3d8e671343493f42cb6a9d982e343a30d6db9ccff9d115e74","sha256:f1b957927df8fad73c958cf6ce160524a16ed2ac35b230519698c1c4a4cd27f7"],"state_sha256":"60f452ddbc70c746bf2a3cd9a98df631c14ddefb662fcf837700e2c27f7aef15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"386707z9yx1lPMW3ZfIMNvAVCmdbjGLRK73yw8KaUPcTjwgMNnrxwIc4M9sa7JNcb+wE9VCodI6nOgRikErQDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T04:22:36.412250Z","bundle_sha256":"8a24c9f5c80ad039781393888ad77eb9227b787153827c10a26746830937d122"}}