{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FEFTQ3SEIRM5TVQO3VP2UQSRGY","short_pith_number":"pith:FEFTQ3SE","canonical_record":{"source":{"id":"1709.06396","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-19T13:19:52Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"557458e72d0a276c1bf26a36b047455fdfc489025637801443ad11e7f5065032","abstract_canon_sha256":"49398745d2e2a49daddadfd8791b86d6346868d62710281182d52531cd979d06"},"schema_version":"1.0"},"canonical_sha256":"290b386e444459d9d60edd5faa4251360ec78952dfdc55bf2fa1181427814fc3","source":{"kind":"arxiv","id":"1709.06396","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06396","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06396v2","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06396","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"FEFTQ3SEIRM5","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FEFTQ3SEIRM5TVQO","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FEFTQ3SE","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FEFTQ3SEIRM5TVQO3VP2UQSRGY","target":"record","payload":{"canonical_record":{"source":{"id":"1709.06396","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-19T13:19:52Z","cross_cats_sorted":["cond-mat.soft"],"title_canon_sha256":"557458e72d0a276c1bf26a36b047455fdfc489025637801443ad11e7f5065032","abstract_canon_sha256":"49398745d2e2a49daddadfd8791b86d6346868d62710281182d52531cd979d06"},"schema_version":"1.0"},"canonical_sha256":"290b386e444459d9d60edd5faa4251360ec78952dfdc55bf2fa1181427814fc3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:21:10.981169Z","signature_b64":"muJmSXv6ru/Ma+vMg9i1DXbOkhbMrTbXUBglWnKKx2prZj5hieGWKE7xyJlHyGSfIQMyjL6CxACKo9TkTGroCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"290b386e444459d9d60edd5faa4251360ec78952dfdc55bf2fa1181427814fc3","last_reissued_at":"2026-05-18T00:21:10.980718Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:21:10.980718Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1709.06396","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":"2026-05-18T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pQ3HYWcflaee5K5Rluub6hNuEUfpNiW389dxDCJjXm/f+OYdBPXhO7xgI45567VOH2dDGMI2AihbH73fR3MMBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T09:06:29.745855Z"},"content_sha256":"87208e825bec761b595c7b7e0cccc24fd8318ecdadeb123b4559c021783c740b","schema_version":"1.0","event_id":"sha256:87208e825bec761b595c7b7e0cccc24fd8318ecdadeb123b4559c021783c740b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FEFTQ3SEIRM5TVQO3VP2UQSRGY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Long-wavelength instabilities in a system of interacting active particles","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"Ali Najafi, Zahra Fazli","submitted_at":"2017-09-19T13:19:52Z","abstract_excerpt":"Based on a microscopic model, we develop a continuum description for a suspension of microscopic self propelled particles. With this continuum description we study the role of long-range interactions in destabilizing macroscopic ordered phases that are developed by short-range interactions. Long-wavelength fluctuations can destabilize both isotropic and also symmetry broken polar phase in a suspension of dipolar particles. The instabilities in a suspension of pullers (pushers) arise from splay (bend) fluctuations. Such instabilities are not seen in a suspension of quadrupolar particles."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06396","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":"2026-05-18T00:21:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tpicVlw1a2fqJqVsCvDU5eI7GH1obbv7WKyH/V6hquetJ89/sg8reYJzVEMDN95qk+P79Q/To5Kl0iy/t96hDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T09:06:29.746532Z"},"content_sha256":"0d591168963b29db9349e3e0bc6c6b95801c1ae63c1bc45dd02648c150204805","schema_version":"1.0","event_id":"sha256:0d591168963b29db9349e3e0bc6c6b95801c1ae63c1bc45dd02648c150204805"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY/bundle.json","state_url":"https://pith.science/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY/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":"2026-06-07T09:06:29Z","links":{"resolver":"https://pith.science/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY","bundle":"https://pith.science/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY/bundle.json","state":"https://pith.science/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FEFTQ3SEIRM5TVQO3VP2UQSRGY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FEFTQ3SEIRM5TVQO3VP2UQSRGY","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":"49398745d2e2a49daddadfd8791b86d6346868d62710281182d52531cd979d06","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-19T13:19:52Z","title_canon_sha256":"557458e72d0a276c1bf26a36b047455fdfc489025637801443ad11e7f5065032"},"schema_version":"1.0","source":{"id":"1709.06396","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06396","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06396v2","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06396","created_at":"2026-05-18T00:21:10Z"},{"alias_kind":"pith_short_12","alias_value":"FEFTQ3SEIRM5","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FEFTQ3SEIRM5TVQO","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FEFTQ3SE","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:0d591168963b29db9349e3e0bc6c6b95801c1ae63c1bc45dd02648c150204805","target":"graph","created_at":"2026-05-18T00:21:10Z","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":"Based on a microscopic model, we develop a continuum description for a suspension of microscopic self propelled particles. With this continuum description we study the role of long-range interactions in destabilizing macroscopic ordered phases that are developed by short-range interactions. Long-wavelength fluctuations can destabilize both isotropic and also symmetry broken polar phase in a suspension of dipolar particles. The instabilities in a suspension of pullers (pushers) arise from splay (bend) fluctuations. Such instabilities are not seen in a suspension of quadrupolar particles.","authors_text":"Ali Najafi, Zahra Fazli","cross_cats":["cond-mat.soft"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-19T13:19:52Z","title":"Long-wavelength instabilities in a system of interacting active particles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06396","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":"sha256:87208e825bec761b595c7b7e0cccc24fd8318ecdadeb123b4559c021783c740b","target":"record","created_at":"2026-05-18T00:21:10Z","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":"49398745d2e2a49daddadfd8791b86d6346868d62710281182d52531cd979d06","cross_cats_sorted":["cond-mat.soft"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2017-09-19T13:19:52Z","title_canon_sha256":"557458e72d0a276c1bf26a36b047455fdfc489025637801443ad11e7f5065032"},"schema_version":"1.0","source":{"id":"1709.06396","kind":"arxiv","version":2}},"canonical_sha256":"290b386e444459d9d60edd5faa4251360ec78952dfdc55bf2fa1181427814fc3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"290b386e444459d9d60edd5faa4251360ec78952dfdc55bf2fa1181427814fc3","first_computed_at":"2026-05-18T00:21:10.980718Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:21:10.980718Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"muJmSXv6ru/Ma+vMg9i1DXbOkhbMrTbXUBglWnKKx2prZj5hieGWKE7xyJlHyGSfIQMyjL6CxACKo9TkTGroCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:21:10.981169Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.06396","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:87208e825bec761b595c7b7e0cccc24fd8318ecdadeb123b4559c021783c740b","sha256:0d591168963b29db9349e3e0bc6c6b95801c1ae63c1bc45dd02648c150204805"],"state_sha256":"edf7a3dd36dd20e8851d9a31b0655316889bb81dfe235247826a16aba5e84615"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zUyRsm/Kfo0gdvPYZlKUXpBBuXY9rIafW7NkGQl/QGonscy76qTWq/hqxc2SoCmzX6bl2JO1ZCMw6mCyBpsBBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T09:06:29.749757Z","bundle_sha256":"4c81ea9018fe30b348ffb4ad93531ff91667340ac3c7c0a29123db9d8ac41111"}}