{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:Q6UQFVTTFLWNKTHNE3BMAF6NXB","short_pith_number":"pith:Q6UQFVTT","canonical_record":{"source":{"id":"1807.05513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.MF","submitted_at":"2018-07-15T08:39:45Z","cross_cats_sorted":[],"title_canon_sha256":"1f917fd3eb09152eac9bf4d130de67b9c37700728519ad919e79bad1d35264df","abstract_canon_sha256":"d6774b03820c6dd56ee4d277517d09f32d3c7153b2e89be28153c8c5964a79d6"},"schema_version":"1.0"},"canonical_sha256":"87a902d6732aecd54ced26c2c017cdb84e7cb443a5305394b0aaefb7758a92e4","source":{"kind":"arxiv","id":"1807.05513","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.05513","created_at":"2026-05-18T00:10:43Z"},{"alias_kind":"arxiv_version","alias_value":"1807.05513v1","created_at":"2026-05-18T00:10:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05513","created_at":"2026-05-18T00:10:43Z"},{"alias_kind":"pith_short_12","alias_value":"Q6UQFVTTFLWN","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q6UQFVTTFLWNKTHN","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q6UQFVTT","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:Q6UQFVTTFLWNKTHNE3BMAF6NXB","target":"record","payload":{"canonical_record":{"source":{"id":"1807.05513","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.MF","submitted_at":"2018-07-15T08:39:45Z","cross_cats_sorted":[],"title_canon_sha256":"1f917fd3eb09152eac9bf4d130de67b9c37700728519ad919e79bad1d35264df","abstract_canon_sha256":"d6774b03820c6dd56ee4d277517d09f32d3c7153b2e89be28153c8c5964a79d6"},"schema_version":"1.0"},"canonical_sha256":"87a902d6732aecd54ced26c2c017cdb84e7cb443a5305394b0aaefb7758a92e4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:43.385108Z","signature_b64":"rgIssR88s6mslHPhsb38Z/BWDshJmbGVBSMcDhBWV1QE/MFuSpyB8weL5N1x0EMMYYE21zOmoKSN9WTXsSKEAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87a902d6732aecd54ced26c2c017cdb84e7cb443a5305394b0aaefb7758a92e4","last_reissued_at":"2026-05-18T00:10:43.384546Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:43.384546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.05513","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":"2026-05-18T00:10:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uK0jjubqa/Bp1f5SRDYgzEU5SmrYBaMSMH0IWoaom2YfeA6e3UiWKIQ9/TlSxPb8xfQYlrYWP/AXf6/3BuGxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T11:25:52.280100Z"},"content_sha256":"9411dd9561795b3a8d02f65b2d8b48dcb8ba91f356a6e9232418c0aae4656e0d","schema_version":"1.0","event_id":"sha256:9411dd9561795b3a8d02f65b2d8b48dcb8ba91f356a6e9232418c0aae4656e0d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:Q6UQFVTTFLWNKTHNE3BMAF6NXB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optimal Credit Investment and Risk Control for an Insurer with Regime-Switching","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-fin.MF","authors_text":"Huafu Liao, Lijun Bo, Yongjin Wang","submitted_at":"2018-07-15T08:39:45Z","abstract_excerpt":"This paper studies an optimal investment and risk control problem for an insurer with default contagion and regime-switching. The insurer in our model allocates his/her wealth across multi-name defaultable stocks and a riskless bond under regime-switching risk. Default events have an impact on the distress state of the surviving stocks in the portfolio. The aim of the insurer is to maximize the expected utility of the terminal wealth by selecting optimal investment and risk control strategies. We characterize the optimal trading strategy of defaultable stocks and risk control for the insurer. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05513","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":"2026-05-18T00:10:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OXPggYQbiLhnAJX37/aym6fuyenRYWivK06uTnwGVgTc+jW9RxM+yaLVjNOvZvwiiHE9W+GrK+FJ8Ke+TeWRDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T11:25:52.280555Z"},"content_sha256":"b4df7d592dbf4e24fcc26ca833ef1bda9c3b5256419e55a47a0d7a5661a0a327","schema_version":"1.0","event_id":"sha256:b4df7d592dbf4e24fcc26ca833ef1bda9c3b5256419e55a47a0d7a5661a0a327"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB/bundle.json","state_url":"https://pith.science/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB/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":"2026-06-06T11:25:52Z","links":{"resolver":"https://pith.science/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB","bundle":"https://pith.science/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB/bundle.json","state":"https://pith.science/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Q6UQFVTTFLWNKTHNE3BMAF6NXB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:Q6UQFVTTFLWNKTHNE3BMAF6NXB","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":"d6774b03820c6dd56ee4d277517d09f32d3c7153b2e89be28153c8c5964a79d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.MF","submitted_at":"2018-07-15T08:39:45Z","title_canon_sha256":"1f917fd3eb09152eac9bf4d130de67b9c37700728519ad919e79bad1d35264df"},"schema_version":"1.0","source":{"id":"1807.05513","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.05513","created_at":"2026-05-18T00:10:43Z"},{"alias_kind":"arxiv_version","alias_value":"1807.05513v1","created_at":"2026-05-18T00:10:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.05513","created_at":"2026-05-18T00:10:43Z"},{"alias_kind":"pith_short_12","alias_value":"Q6UQFVTTFLWN","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"Q6UQFVTTFLWNKTHN","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"Q6UQFVTT","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:b4df7d592dbf4e24fcc26ca833ef1bda9c3b5256419e55a47a0d7a5661a0a327","target":"graph","created_at":"2026-05-18T00:10:43Z","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":"This paper studies an optimal investment and risk control problem for an insurer with default contagion and regime-switching. The insurer in our model allocates his/her wealth across multi-name defaultable stocks and a riskless bond under regime-switching risk. Default events have an impact on the distress state of the surviving stocks in the portfolio. The aim of the insurer is to maximize the expected utility of the terminal wealth by selecting optimal investment and risk control strategies. We characterize the optimal trading strategy of defaultable stocks and risk control for the insurer. ","authors_text":"Huafu Liao, Lijun Bo, Yongjin Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.MF","submitted_at":"2018-07-15T08:39:45Z","title":"Optimal Credit Investment and Risk Control for an Insurer with Regime-Switching"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.05513","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":"sha256:9411dd9561795b3a8d02f65b2d8b48dcb8ba91f356a6e9232418c0aae4656e0d","target":"record","created_at":"2026-05-18T00:10:43Z","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":"d6774b03820c6dd56ee4d277517d09f32d3c7153b2e89be28153c8c5964a79d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.MF","submitted_at":"2018-07-15T08:39:45Z","title_canon_sha256":"1f917fd3eb09152eac9bf4d130de67b9c37700728519ad919e79bad1d35264df"},"schema_version":"1.0","source":{"id":"1807.05513","kind":"arxiv","version":1}},"canonical_sha256":"87a902d6732aecd54ced26c2c017cdb84e7cb443a5305394b0aaefb7758a92e4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"87a902d6732aecd54ced26c2c017cdb84e7cb443a5305394b0aaefb7758a92e4","first_computed_at":"2026-05-18T00:10:43.384546Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:43.384546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rgIssR88s6mslHPhsb38Z/BWDshJmbGVBSMcDhBWV1QE/MFuSpyB8weL5N1x0EMMYYE21zOmoKSN9WTXsSKEAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:43.385108Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.05513","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9411dd9561795b3a8d02f65b2d8b48dcb8ba91f356a6e9232418c0aae4656e0d","sha256:b4df7d592dbf4e24fcc26ca833ef1bda9c3b5256419e55a47a0d7a5661a0a327"],"state_sha256":"3fe6ca412a51acc6b856c118a59aa8c15bb40b5dcdc1c0b0f2ab7629760cd377"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wuZlv9W/yR0FZdiU+iYr3UmBNlhrQJs2OqlXJB5WhiOVtNoeJyE82qkJ9V9qKLRh0Ec8TSCicHW8qgBUYYEPDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T11:25:52.283619Z","bundle_sha256":"bf9bfd9fad4d9d3eb07f8c65ae30fd3131ed48a3c345a2a98eb15b9cb2d652f2"}}