{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:G6FOSHFCIWUWDDROXV3Q3AXLIP","short_pith_number":"pith:G6FOSHFC","canonical_record":{"source":{"id":"1904.13183","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-04-30T12:13:44Z","cross_cats_sorted":[],"title_canon_sha256":"317c8b639516ad50b65239c89e498feb0485b2c52275b47c6b65d9166552e6ba","abstract_canon_sha256":"7e6cc7daf38effbc41d520450e841c8acf99def67c9d4cf8aeb53cf62aa9450e"},"schema_version":"1.0"},"canonical_sha256":"378ae91ca245a9618e2ebd770d82eb43f3cbe0a7330a5fa03d23b0f050220070","source":{"kind":"arxiv","id":"1904.13183","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13183","created_at":"2026-05-17T23:45:44Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13183v1","created_at":"2026-05-17T23:45:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13183","created_at":"2026-05-17T23:45:44Z"},{"alias_kind":"pith_short_12","alias_value":"G6FOSHFCIWUW","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"G6FOSHFCIWUWDDRO","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"G6FOSHFC","created_at":"2026-05-18T12:33:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:G6FOSHFCIWUWDDROXV3Q3AXLIP","target":"record","payload":{"canonical_record":{"source":{"id":"1904.13183","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-04-30T12:13:44Z","cross_cats_sorted":[],"title_canon_sha256":"317c8b639516ad50b65239c89e498feb0485b2c52275b47c6b65d9166552e6ba","abstract_canon_sha256":"7e6cc7daf38effbc41d520450e841c8acf99def67c9d4cf8aeb53cf62aa9450e"},"schema_version":"1.0"},"canonical_sha256":"378ae91ca245a9618e2ebd770d82eb43f3cbe0a7330a5fa03d23b0f050220070","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:44.055112Z","signature_b64":"Y5eLkRwXlTPlME/PWnqJSzwug3tVJjYupXWaoMxl8/ZyqrpgOL/HeX03CyYS8k/52/59OcbvBsrp+7EvUPXPDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"378ae91ca245a9618e2ebd770d82eb43f3cbe0a7330a5fa03d23b0f050220070","last_reissued_at":"2026-05-17T23:45:44.054490Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:44.054490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.13183","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":"2026-05-17T23:45:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hoKBfDZWd6LMqplITq1oiRC+GSnS3gcmmqVkf188s1skSgarYBZ7i7qvlwFEfT3csFrlKXz3gHnpoIbOT/+ABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:42:31.459103Z"},"content_sha256":"17ea8b082050029a876c6014b5b79b7fe8a7be4355ef9161806958da9e50561b","schema_version":"1.0","event_id":"sha256:17ea8b082050029a876c6014b5b79b7fe8a7be4355ef9161806958da9e50561b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:G6FOSHFCIWUWDDROXV3Q3AXLIP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Critical dynamics and tree-like spatiotemporal patterns in exciton-polaritoncondensates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Andrzej Opala, Micha{\\l} Kulczykowski, Micha{\\l} Matuszewski, Michiel Wouters, Nataliya Bobrovska, Pawe{\\l} Mi\\k{e}tki, Piotr Szymczak","submitted_at":"2019-04-30T12:13:44Z","abstract_excerpt":"We study nonresonantly pumped exciton-polariton system in the vicinity of the dynamical instability threshold. We find that the system exhibits unique and rich dynamics, which leads to spatiotemporal pattern formation. The patterns have a tree-like structure and are reminiscent of structures that appear in a variety of soft matter systems. Within the approximation of slow and fast time scales, we show that the polariton model exhibits self-replication point in analogy to reaction-diffusion systems."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13183","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":"2026-05-17T23:45:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MuoPxx6JfX7q3hHRxdEJ7+OZ3WlbbDpGfKS1Abgb4IaffFJWW72EhhKkAS461UtZTh2jH4idbOOurvDU1ww2AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:42:31.459498Z"},"content_sha256":"806bfc3bdc819ede463b05d0286355205f47a12da4e13b1db3a4d22688f22019","schema_version":"1.0","event_id":"sha256:806bfc3bdc819ede463b05d0286355205f47a12da4e13b1db3a4d22688f22019"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP/bundle.json","state_url":"https://pith.science/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP/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":"2026-05-27T20:42:31Z","links":{"resolver":"https://pith.science/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP","bundle":"https://pith.science/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP/bundle.json","state":"https://pith.science/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G6FOSHFCIWUWDDROXV3Q3AXLIP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:G6FOSHFCIWUWDDROXV3Q3AXLIP","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":"7e6cc7daf38effbc41d520450e841c8acf99def67c9d4cf8aeb53cf62aa9450e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-04-30T12:13:44Z","title_canon_sha256":"317c8b639516ad50b65239c89e498feb0485b2c52275b47c6b65d9166552e6ba"},"schema_version":"1.0","source":{"id":"1904.13183","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.13183","created_at":"2026-05-17T23:45:44Z"},{"alias_kind":"arxiv_version","alias_value":"1904.13183v1","created_at":"2026-05-17T23:45:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.13183","created_at":"2026-05-17T23:45:44Z"},{"alias_kind":"pith_short_12","alias_value":"G6FOSHFCIWUW","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_16","alias_value":"G6FOSHFCIWUWDDRO","created_at":"2026-05-18T12:33:18Z"},{"alias_kind":"pith_short_8","alias_value":"G6FOSHFC","created_at":"2026-05-18T12:33:18Z"}],"graph_snapshots":[{"event_id":"sha256:806bfc3bdc819ede463b05d0286355205f47a12da4e13b1db3a4d22688f22019","target":"graph","created_at":"2026-05-17T23:45:44Z","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 study nonresonantly pumped exciton-polariton system in the vicinity of the dynamical instability threshold. We find that the system exhibits unique and rich dynamics, which leads to spatiotemporal pattern formation. The patterns have a tree-like structure and are reminiscent of structures that appear in a variety of soft matter systems. Within the approximation of slow and fast time scales, we show that the polariton model exhibits self-replication point in analogy to reaction-diffusion systems.","authors_text":"Andrzej Opala, Micha{\\l} Kulczykowski, Micha{\\l} Matuszewski, Michiel Wouters, Nataliya Bobrovska, Pawe{\\l} Mi\\k{e}tki, Piotr Szymczak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-04-30T12:13:44Z","title":"Critical dynamics and tree-like spatiotemporal patterns in exciton-polaritoncondensates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.13183","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":"sha256:17ea8b082050029a876c6014b5b79b7fe8a7be4355ef9161806958da9e50561b","target":"record","created_at":"2026-05-17T23:45:44Z","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":"7e6cc7daf38effbc41d520450e841c8acf99def67c9d4cf8aeb53cf62aa9450e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2019-04-30T12:13:44Z","title_canon_sha256":"317c8b639516ad50b65239c89e498feb0485b2c52275b47c6b65d9166552e6ba"},"schema_version":"1.0","source":{"id":"1904.13183","kind":"arxiv","version":1}},"canonical_sha256":"378ae91ca245a9618e2ebd770d82eb43f3cbe0a7330a5fa03d23b0f050220070","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"378ae91ca245a9618e2ebd770d82eb43f3cbe0a7330a5fa03d23b0f050220070","first_computed_at":"2026-05-17T23:45:44.054490Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:44.054490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y5eLkRwXlTPlME/PWnqJSzwug3tVJjYupXWaoMxl8/ZyqrpgOL/HeX03CyYS8k/52/59OcbvBsrp+7EvUPXPDA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:44.055112Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.13183","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17ea8b082050029a876c6014b5b79b7fe8a7be4355ef9161806958da9e50561b","sha256:806bfc3bdc819ede463b05d0286355205f47a12da4e13b1db3a4d22688f22019"],"state_sha256":"961e996fec6cdfc2defcaebb137ab3a6dfccebe2c3140af84ef17275d9833c91"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"coisYfZUuJdvUJrvOi1azGSJ+nsOGRwFgLJ86kXXwVMazd1n8UigJQi0rYnPIIUAdYiDoEA1SVYRGcFXAW6GAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:42:31.462623Z","bundle_sha256":"cbefc03b390ca93f1451cb6852781800807f543a695ae9f692e379b0bfb0c881"}}