{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:I43JMS7YRJHUQJMZTNPBX4D2YN","short_pith_number":"pith:I43JMS7Y","canonical_record":{"source":{"id":"2505.23698","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2025-05-29T17:36:51Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"56fccf4f12409c67ab4ae38230a53791ebf71555970c3597b673d8f797ed3e12","abstract_canon_sha256":"c0007b5cc9e6df83f4ae2f922233c46dc08167d1b25482683ccc7ae7849988b7"},"schema_version":"1.0"},"canonical_sha256":"4736964bf88a4f4825999b5e1bf07ac35fffcdd923931853c6a1e43898e71779","source":{"kind":"arxiv","id":"2505.23698","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.23698","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"arxiv_version","alias_value":"2505.23698v1","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.23698","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"pith_short_12","alias_value":"I43JMS7YRJHU","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"pith_short_16","alias_value":"I43JMS7YRJHUQJMZ","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"pith_short_8","alias_value":"I43JMS7Y","created_at":"2026-07-05T11:12:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:I43JMS7YRJHUQJMZTNPBX4D2YN","target":"record","payload":{"canonical_record":{"source":{"id":"2505.23698","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2025-05-29T17:36:51Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"56fccf4f12409c67ab4ae38230a53791ebf71555970c3597b673d8f797ed3e12","abstract_canon_sha256":"c0007b5cc9e6df83f4ae2f922233c46dc08167d1b25482683ccc7ae7849988b7"},"schema_version":"1.0"},"canonical_sha256":"4736964bf88a4f4825999b5e1bf07ac35fffcdd923931853c6a1e43898e71779","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:12:12.860824Z","signature_b64":"YiNP50X8LFEpYzFK0WH+S4/O/RtAdf7pqoBcRYrwsGv95LymM+QEQghd8CYjwmCIiiViQZwcCY4ZLkznf1PGCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4736964bf88a4f4825999b5e1bf07ac35fffcdd923931853c6a1e43898e71779","last_reissued_at":"2026-07-05T11:12:12.860227Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:12:12.860227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.23698","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":"2026-07-05T11:12:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yoTuWVSnhBdI6+H93VZOXf0bdiLYbv//tkDIZbTl55lCSP0y8Zclx+vxHsQRowTSkRw18wmXfC+nIgIA3RV7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:53:11.401449Z"},"content_sha256":"b1d4b33beff2457d52059c74ea4272ab8057743b86866219bdb7209640f1ca1e","schema_version":"1.0","event_id":"sha256:b1d4b33beff2457d52059c74ea4272ab8057743b86866219bdb7209640f1ca1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:I43JMS7YRJHUQJMZTNPBX4D2YN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Diffusive noise controls early stages of genetic demixing","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"Kabir Ramola, Prasad Perlekar, Rashmiranjan Bhutia, Stephy Jose","submitted_at":"2025-05-29T17:36:51Z","abstract_excerpt":"Theoretical descriptions of the stepping-stone model, a cornerstone of spatial population genetics, have long overlooked diffusive noise arising from migration dynamics. We derive an exact fluctuating hydrodynamic description of this model from microscopic rules, which we then use to demonstrate that diffusive noise significantly alters early-time genetic demixing, which we characterize through heterozygosity, a key measure of diversity. Combining macroscopic fluctuation theory and microscopic simulations, we demonstrate that the scaling of density fluctuations in a spatial domain displays an "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.23698","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.23698/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:12:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"naepcgKYsPTp4aOXlMJ3MsaWGRh+/NGpfUh7iCVO6yQVlKQ32+fb9NURkTWXdRR6y1UPFYaHl6pu+WBiZ/27AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:53:11.402066Z"},"content_sha256":"f3d2783611540eb5587595cff7afc2f0ccfd33cbfb72c2cfa9606ca4fb4df0d1","schema_version":"1.0","event_id":"sha256:f3d2783611540eb5587595cff7afc2f0ccfd33cbfb72c2cfa9606ca4fb4df0d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I43JMS7YRJHUQJMZTNPBX4D2YN/bundle.json","state_url":"https://pith.science/pith/I43JMS7YRJHUQJMZTNPBX4D2YN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I43JMS7YRJHUQJMZTNPBX4D2YN/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":"2026-08-07T23:53:11Z","links":{"resolver":"https://pith.science/pith/I43JMS7YRJHUQJMZTNPBX4D2YN","bundle":"https://pith.science/pith/I43JMS7YRJHUQJMZTNPBX4D2YN/bundle.json","state":"https://pith.science/pith/I43JMS7YRJHUQJMZTNPBX4D2YN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I43JMS7YRJHUQJMZTNPBX4D2YN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:I43JMS7YRJHUQJMZTNPBX4D2YN","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":"c0007b5cc9e6df83f4ae2f922233c46dc08167d1b25482683ccc7ae7849988b7","cross_cats_sorted":["cond-mat.soft"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2025-05-29T17:36:51Z","title_canon_sha256":"56fccf4f12409c67ab4ae38230a53791ebf71555970c3597b673d8f797ed3e12"},"schema_version":"1.0","source":{"id":"2505.23698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.23698","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"arxiv_version","alias_value":"2505.23698v1","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.23698","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"pith_short_12","alias_value":"I43JMS7YRJHU","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"pith_short_16","alias_value":"I43JMS7YRJHUQJMZ","created_at":"2026-07-05T11:12:12Z"},{"alias_kind":"pith_short_8","alias_value":"I43JMS7Y","created_at":"2026-07-05T11:12:12Z"}],"graph_snapshots":[{"event_id":"sha256:f3d2783611540eb5587595cff7afc2f0ccfd33cbfb72c2cfa9606ca4fb4df0d1","target":"graph","created_at":"2026-07-05T11:12:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2505.23698/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Theoretical descriptions of the stepping-stone model, a cornerstone of spatial population genetics, have long overlooked diffusive noise arising from migration dynamics. We derive an exact fluctuating hydrodynamic description of this model from microscopic rules, which we then use to demonstrate that diffusive noise significantly alters early-time genetic demixing, which we characterize through heterozygosity, a key measure of diversity. Combining macroscopic fluctuation theory and microscopic simulations, we demonstrate that the scaling of density fluctuations in a spatial domain displays an ","authors_text":"Kabir Ramola, Prasad Perlekar, Rashmiranjan Bhutia, Stephy Jose","cross_cats":["cond-mat.soft"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2025-05-29T17:36:51Z","title":"Diffusive noise controls early stages of genetic demixing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.23698","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:b1d4b33beff2457d52059c74ea4272ab8057743b86866219bdb7209640f1ca1e","target":"record","created_at":"2026-07-05T11:12:12Z","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":"c0007b5cc9e6df83f4ae2f922233c46dc08167d1b25482683ccc7ae7849988b7","cross_cats_sorted":["cond-mat.soft"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2025-05-29T17:36:51Z","title_canon_sha256":"56fccf4f12409c67ab4ae38230a53791ebf71555970c3597b673d8f797ed3e12"},"schema_version":"1.0","source":{"id":"2505.23698","kind":"arxiv","version":1}},"canonical_sha256":"4736964bf88a4f4825999b5e1bf07ac35fffcdd923931853c6a1e43898e71779","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4736964bf88a4f4825999b5e1bf07ac35fffcdd923931853c6a1e43898e71779","first_computed_at":"2026-07-05T11:12:12.860227Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:12:12.860227Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"YiNP50X8LFEpYzFK0WH+S4/O/RtAdf7pqoBcRYrwsGv95LymM+QEQghd8CYjwmCIiiViQZwcCY4ZLkznf1PGCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:12:12.860824Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.23698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1d4b33beff2457d52059c74ea4272ab8057743b86866219bdb7209640f1ca1e","sha256:f3d2783611540eb5587595cff7afc2f0ccfd33cbfb72c2cfa9606ca4fb4df0d1"],"state_sha256":"5f744a4d5643479239ac3576712f8ae1fea648e0755afbe826b421dc574434ae"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8KV/DRVWR1dHWOm9CoTSwgeddW+REmAhJVHKfUy7/K3w3TeIVFzoEG5bWO1lOTTtF64syP7TzzJ7R/yBpYiwBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T23:53:11.408206Z","bundle_sha256":"54c4224601fcf936ce916e19c3436324682948aa3ad4e657b1948e87892c0665"}}