{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:OJ5VCZQPU6ZNAIRPGGJBYSBBSQ","short_pith_number":"pith:OJ5VCZQP","canonical_record":{"source":{"id":"1810.09643","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2018-10-23T03:33:06Z","cross_cats_sorted":["math-ph","math.CA","math.DS","math.MP"],"title_canon_sha256":"93665c904d9090c40ac6b277de7c357563027f1be9dc66b1a09718b1bdf7ed88","abstract_canon_sha256":"c0c47c52d8e0c735543d086d078f502086545514a955a9745e37cd5326799d2a"},"schema_version":"1.0"},"canonical_sha256":"727b51660fa7b2d0222f31921c48219407e6aff64d5756c23d10d40d51bd7bca","source":{"kind":"arxiv","id":"1810.09643","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.09643","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"arxiv_version","alias_value":"1810.09643v1","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.09643","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"pith_short_12","alias_value":"OJ5VCZQPU6ZN","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OJ5VCZQPU6ZNAIRP","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OJ5VCZQP","created_at":"2026-05-18T12:32:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:OJ5VCZQPU6ZNAIRPGGJBYSBBSQ","target":"record","payload":{"canonical_record":{"source":{"id":"1810.09643","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2018-10-23T03:33:06Z","cross_cats_sorted":["math-ph","math.CA","math.DS","math.MP"],"title_canon_sha256":"93665c904d9090c40ac6b277de7c357563027f1be9dc66b1a09718b1bdf7ed88","abstract_canon_sha256":"c0c47c52d8e0c735543d086d078f502086545514a955a9745e37cd5326799d2a"},"schema_version":"1.0"},"canonical_sha256":"727b51660fa7b2d0222f31921c48219407e6aff64d5756c23d10d40d51bd7bca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:45:35.863693Z","signature_b64":"RarFfswOEbKqtaOVMgNBwgvANr9JEV1wxqtTvJpX1V5DCiFa/kj6I8zPV2r3/3FNh2LXGndco9OHX3X6c6I7BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"727b51660fa7b2d0222f31921c48219407e6aff64d5756c23d10d40d51bd7bca","last_reissued_at":"2026-05-17T23:45:35.862907Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:45:35.862907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.09643","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":"2026-05-17T23:45:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EuWTEllJvsC5AIoRLSqkSVlitHN0u7vFh4eMqYIsY40WBFSNWOlf3Y+QAWRHulz0NyZSDNw3xbrfAFlWqBZJCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:41:07.867437Z"},"content_sha256":"3fde037be4e331575889969dd304f83278fe8baae85f375e552ad588adad8fa9","schema_version":"1.0","event_id":"sha256:3fde037be4e331575889969dd304f83278fe8baae85f375e552ad588adad8fa9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:OJ5VCZQPU6ZNAIRPGGJBYSBBSQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Dynamical Systems Approach to The Fourth Painleve Equation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math-ph","math.CA","math.DS","math.MP"],"primary_cat":"nlin.SI","authors_text":"Jeremy Schiff, Michael Twiton","submitted_at":"2018-10-23T03:33:06Z","abstract_excerpt":"We use methods from dynamical systems to study the fourth Painleve equation PIV. Our starting point is the symmetric form of PIV, to which the Poincare compactification is applied. The motion on the sphere at infinity can be completely characterized. There are fourteen fixed points, which are classified into three different types. Generic orbits of the full system are curves from one of four asymptotically unstable points to one of four asymptotically stable points, with the set of allowed transitions depending on the values of the parameters. This allows us to give a qualitative description o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.09643","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":"2026-05-17T23:45:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d4P8sopZvSVQHXJkJHbUrwCX6kMgPWlKrVs4f4jagbPVdCKhPIxeJkHY2DeXHyZKkv83Z4XFj82l+W/ygx51DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T06:41:07.868100Z"},"content_sha256":"595f58180b2c330ca45e4d5464b1cce8bc7b3dce4723c5efbd576ff0f0427f01","schema_version":"1.0","event_id":"sha256:595f58180b2c330ca45e4d5464b1cce8bc7b3dce4723c5efbd576ff0f0427f01"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ/bundle.json","state_url":"https://pith.science/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ/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":"2026-05-25T06:41:07Z","links":{"resolver":"https://pith.science/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ","bundle":"https://pith.science/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ/bundle.json","state":"https://pith.science/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OJ5VCZQPU6ZNAIRPGGJBYSBBSQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:OJ5VCZQPU6ZNAIRPGGJBYSBBSQ","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":"c0c47c52d8e0c735543d086d078f502086545514a955a9745e37cd5326799d2a","cross_cats_sorted":["math-ph","math.CA","math.DS","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2018-10-23T03:33:06Z","title_canon_sha256":"93665c904d9090c40ac6b277de7c357563027f1be9dc66b1a09718b1bdf7ed88"},"schema_version":"1.0","source":{"id":"1810.09643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.09643","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"arxiv_version","alias_value":"1810.09643v1","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.09643","created_at":"2026-05-17T23:45:35Z"},{"alias_kind":"pith_short_12","alias_value":"OJ5VCZQPU6ZN","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_16","alias_value":"OJ5VCZQPU6ZNAIRP","created_at":"2026-05-18T12:32:43Z"},{"alias_kind":"pith_short_8","alias_value":"OJ5VCZQP","created_at":"2026-05-18T12:32:43Z"}],"graph_snapshots":[{"event_id":"sha256:595f58180b2c330ca45e4d5464b1cce8bc7b3dce4723c5efbd576ff0f0427f01","target":"graph","created_at":"2026-05-17T23:45:35Z","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 use methods from dynamical systems to study the fourth Painleve equation PIV. Our starting point is the symmetric form of PIV, to which the Poincare compactification is applied. The motion on the sphere at infinity can be completely characterized. There are fourteen fixed points, which are classified into three different types. Generic orbits of the full system are curves from one of four asymptotically unstable points to one of four asymptotically stable points, with the set of allowed transitions depending on the values of the parameters. This allows us to give a qualitative description o","authors_text":"Jeremy Schiff, Michael Twiton","cross_cats":["math-ph","math.CA","math.DS","math.MP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2018-10-23T03:33:06Z","title":"A Dynamical Systems Approach to The Fourth Painleve Equation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.09643","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":"sha256:3fde037be4e331575889969dd304f83278fe8baae85f375e552ad588adad8fa9","target":"record","created_at":"2026-05-17T23:45:35Z","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":"c0c47c52d8e0c735543d086d078f502086545514a955a9745e37cd5326799d2a","cross_cats_sorted":["math-ph","math.CA","math.DS","math.MP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nlin.SI","submitted_at":"2018-10-23T03:33:06Z","title_canon_sha256":"93665c904d9090c40ac6b277de7c357563027f1be9dc66b1a09718b1bdf7ed88"},"schema_version":"1.0","source":{"id":"1810.09643","kind":"arxiv","version":1}},"canonical_sha256":"727b51660fa7b2d0222f31921c48219407e6aff64d5756c23d10d40d51bd7bca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"727b51660fa7b2d0222f31921c48219407e6aff64d5756c23d10d40d51bd7bca","first_computed_at":"2026-05-17T23:45:35.862907Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:45:35.862907Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RarFfswOEbKqtaOVMgNBwgvANr9JEV1wxqtTvJpX1V5DCiFa/kj6I8zPV2r3/3FNh2LXGndco9OHX3X6c6I7BQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:45:35.863693Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.09643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3fde037be4e331575889969dd304f83278fe8baae85f375e552ad588adad8fa9","sha256:595f58180b2c330ca45e4d5464b1cce8bc7b3dce4723c5efbd576ff0f0427f01"],"state_sha256":"b3a2ab5f968f11ab5a562aeb699420e218aa2a0f2b0dae8f85396e1c07f84f1b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"87wp4r/DuFSo4DRi3mhDGVznOKESsU7KFilxbzEXj3Bp4F0wi3HyGwMuMkotmIUIOcNmvZZCdtTUR91OsfciCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T06:41:07.873163Z","bundle_sha256":"c9e13305e335e20aa4a64480ad5260016b8447d5971a48a2a8c4c3159ba742de"}}