{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:HIQNQZHZNK5ZCXDRYRC23EBY3W","short_pith_number":"pith:HIQNQZHZ","canonical_record":{"source":{"id":"1105.1039","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-05-05T11:27:31Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"525a823310dbbedbfd197deffc3de50f59898d532968d60ded78e0cd1239b6b3","abstract_canon_sha256":"b298c9f0e217b32784cca5a35ac086d810189ed7245dc3f37746748c66dcfc69"},"schema_version":"1.0"},"canonical_sha256":"3a20d864f96abb915c71c445ad9038dda49d254bac68f6b41fc19375fbff8091","source":{"kind":"arxiv","id":"1105.1039","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.1039","created_at":"2026-05-18T02:02:03Z"},{"alias_kind":"arxiv_version","alias_value":"1105.1039v3","created_at":"2026-05-18T02:02:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.1039","created_at":"2026-05-18T02:02:03Z"},{"alias_kind":"pith_short_12","alias_value":"HIQNQZHZNK5Z","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HIQNQZHZNK5ZCXDR","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HIQNQZHZ","created_at":"2026-05-18T12:26:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:HIQNQZHZNK5ZCXDRYRC23EBY3W","target":"record","payload":{"canonical_record":{"source":{"id":"1105.1039","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-05-05T11:27:31Z","cross_cats_sorted":["q-bio.PE"],"title_canon_sha256":"525a823310dbbedbfd197deffc3de50f59898d532968d60ded78e0cd1239b6b3","abstract_canon_sha256":"b298c9f0e217b32784cca5a35ac086d810189ed7245dc3f37746748c66dcfc69"},"schema_version":"1.0"},"canonical_sha256":"3a20d864f96abb915c71c445ad9038dda49d254bac68f6b41fc19375fbff8091","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:03.929215Z","signature_b64":"+vOQ7SlNKI+P5S/qxv9tIWxw1tKJwTNhR03OHEJCGI9i1iArW87RQngLQYMmczuFRKFyak51x/z+up6yUzLIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3a20d864f96abb915c71c445ad9038dda49d254bac68f6b41fc19375fbff8091","last_reissued_at":"2026-05-18T02:02:03.928419Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:03.928419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1105.1039","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:02:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PpdKcJ4l7tvM5vv/Brm3jBGPyZ/nK3uDSq0XtKKh/3xHkaZ55w0VvFaFx97lPEreSayo5+O4kSRSiYg77EZDAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:42:36.101195Z"},"content_sha256":"87bacc428d0f1bc0f156d30f45d3bd881be988a79f7143c5f153866461eadf4c","schema_version":"1.0","event_id":"sha256:87bacc428d0f1bc0f156d30f45d3bd881be988a79f7143c5f153866461eadf4c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:HIQNQZHZNK5ZCXDRYRC23EBY3W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Velocity fluctuations of population fronts propagating into metastable states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["q-bio.PE"],"primary_cat":"cond-mat.stat-mech","authors_text":"Baruch Meerson, Pavel V. Sasorov, Yitzhak Kaplan","submitted_at":"2011-05-05T11:27:31Z","abstract_excerpt":"The position of propagating population fronts fluctuates because of the discreteness of the individuals and stochastic character of processes of birth, death and migration. Here we consider a Markov model of a population front propagating into a metastable state, and focus on the weak noise limit. For typical, small fluctuations the front motion is diffusive, and we calculate the front diffusion coefficient. We also determine the probability distribution of rare, large fluctuations of the front position and, for a given average front velocity, find the most likely population density profile of"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.1039","kind":"arxiv","version":3},"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":"2026-05-18T02:02:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w7P5xfuzuGFKrqb5wSYtGOfonJOf9aJKnZtce7J2P0civiw2p5CpYv2/9JBPsPLhtKjrirv47q1hc97wGTQ1DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:42:36.101928Z"},"content_sha256":"794ca91214a73af67fb44b812dc5778d151647a36c9e7c346dfc995c744348ba","schema_version":"1.0","event_id":"sha256:794ca91214a73af67fb44b812dc5778d151647a36c9e7c346dfc995c744348ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W/bundle.json","state_url":"https://pith.science/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W/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":"2026-06-07T18:42:36Z","links":{"resolver":"https://pith.science/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W","bundle":"https://pith.science/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W/bundle.json","state":"https://pith.science/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HIQNQZHZNK5ZCXDRYRC23EBY3W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:HIQNQZHZNK5ZCXDRYRC23EBY3W","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":"b298c9f0e217b32784cca5a35ac086d810189ed7245dc3f37746748c66dcfc69","cross_cats_sorted":["q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-05-05T11:27:31Z","title_canon_sha256":"525a823310dbbedbfd197deffc3de50f59898d532968d60ded78e0cd1239b6b3"},"schema_version":"1.0","source":{"id":"1105.1039","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.1039","created_at":"2026-05-18T02:02:03Z"},{"alias_kind":"arxiv_version","alias_value":"1105.1039v3","created_at":"2026-05-18T02:02:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.1039","created_at":"2026-05-18T02:02:03Z"},{"alias_kind":"pith_short_12","alias_value":"HIQNQZHZNK5Z","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_16","alias_value":"HIQNQZHZNK5ZCXDR","created_at":"2026-05-18T12:26:30Z"},{"alias_kind":"pith_short_8","alias_value":"HIQNQZHZ","created_at":"2026-05-18T12:26:30Z"}],"graph_snapshots":[{"event_id":"sha256:794ca91214a73af67fb44b812dc5778d151647a36c9e7c346dfc995c744348ba","target":"graph","created_at":"2026-05-18T02:02:03Z","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":"The position of propagating population fronts fluctuates because of the discreteness of the individuals and stochastic character of processes of birth, death and migration. Here we consider a Markov model of a population front propagating into a metastable state, and focus on the weak noise limit. For typical, small fluctuations the front motion is diffusive, and we calculate the front diffusion coefficient. We also determine the probability distribution of rare, large fluctuations of the front position and, for a given average front velocity, find the most likely population density profile of","authors_text":"Baruch Meerson, Pavel V. Sasorov, Yitzhak Kaplan","cross_cats":["q-bio.PE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-05-05T11:27:31Z","title":"Velocity fluctuations of population fronts propagating into metastable states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.1039","kind":"arxiv","version":3},"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":"sha256:87bacc428d0f1bc0f156d30f45d3bd881be988a79f7143c5f153866461eadf4c","target":"record","created_at":"2026-05-18T02:02:03Z","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":"b298c9f0e217b32784cca5a35ac086d810189ed7245dc3f37746748c66dcfc69","cross_cats_sorted":["q-bio.PE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2011-05-05T11:27:31Z","title_canon_sha256":"525a823310dbbedbfd197deffc3de50f59898d532968d60ded78e0cd1239b6b3"},"schema_version":"1.0","source":{"id":"1105.1039","kind":"arxiv","version":3}},"canonical_sha256":"3a20d864f96abb915c71c445ad9038dda49d254bac68f6b41fc19375fbff8091","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3a20d864f96abb915c71c445ad9038dda49d254bac68f6b41fc19375fbff8091","first_computed_at":"2026-05-18T02:02:03.928419Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:03.928419Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+vOQ7SlNKI+P5S/qxv9tIWxw1tKJwTNhR03OHEJCGI9i1iArW87RQngLQYMmczuFRKFyak51x/z+up6yUzLIAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:03.929215Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.1039","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87bacc428d0f1bc0f156d30f45d3bd881be988a79f7143c5f153866461eadf4c","sha256:794ca91214a73af67fb44b812dc5778d151647a36c9e7c346dfc995c744348ba"],"state_sha256":"57a6cc13cb21e324bcdd64655c81e2dec0fab6234147e13d76e20f23e4197e6f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MMoyHnEGngzGalBhhdXiCqQj3OQ5b60UY74up9PyEmWFXP0NHww+DncFmz/aWMYU575RwkvTWPvsFkLQF1jdAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T18:42:36.106237Z","bundle_sha256":"cf01e84d938eafb7e82759cad0ce129848b2a35dfe261faa3f6a0559255a76d4"}}