{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:G6OMSJBJ3AY567IEE2MLOFNCXO","short_pith_number":"pith:G6OMSJBJ","canonical_record":{"source":{"id":"1210.5987","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.GN","submitted_at":"2012-10-22T18:13:27Z","cross_cats_sorted":["cs.SI","physics.soc-ph","q-fin.RM"],"title_canon_sha256":"6018a1bdebad3b0c4906a3fb254c864f3e8424658bcddc4efa809d71f852edc3","abstract_canon_sha256":"e54e32e76e6c6755a1754e96c69b223deec1a971ebfa67ad4a8a827b0c62c1e9"},"schema_version":"1.0"},"canonical_sha256":"379cc92429d831df7d042698b715a2bb972b65fc1d337bc2824258b09d0f2a66","source":{"kind":"arxiv","id":"1210.5987","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5987","created_at":"2026-05-18T03:41:33Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5987v1","created_at":"2026-05-18T03:41:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5987","created_at":"2026-05-18T03:41:33Z"},{"alias_kind":"pith_short_12","alias_value":"G6OMSJBJ3AY5","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"G6OMSJBJ3AY567IE","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"G6OMSJBJ","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:G6OMSJBJ3AY567IEE2MLOFNCXO","target":"record","payload":{"canonical_record":{"source":{"id":"1210.5987","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.GN","submitted_at":"2012-10-22T18:13:27Z","cross_cats_sorted":["cs.SI","physics.soc-ph","q-fin.RM"],"title_canon_sha256":"6018a1bdebad3b0c4906a3fb254c864f3e8424658bcddc4efa809d71f852edc3","abstract_canon_sha256":"e54e32e76e6c6755a1754e96c69b223deec1a971ebfa67ad4a8a827b0c62c1e9"},"schema_version":"1.0"},"canonical_sha256":"379cc92429d831df7d042698b715a2bb972b65fc1d337bc2824258b09d0f2a66","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:41:33.198200Z","signature_b64":"HG/mvhb8/nz6griJqx6zIUkKzEGPWxZvNpdwmBF78dkouzvMLJuIG77ABAuN8BHj7eCiEFIBaQJ2CTmOok3FDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"379cc92429d831df7d042698b715a2bb972b65fc1d337bc2824258b09d0f2a66","last_reissued_at":"2026-05-18T03:41:33.197523Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:41:33.197523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.5987","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":"2026-05-18T03:41:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pa1raVU954VvuO9ES9UmInqqewHRbEBVw+/2XCdvSSf9E9tfNHQfEuoR68f0JQpn85EQIs54169umMQujOaODQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:45:09.701821Z"},"content_sha256":"f79e5fd3cfb427cde16f574c6908707d14ec05d1b0fa0c29249040ef4b786d52","schema_version":"1.0","event_id":"sha256:f79e5fd3cfb427cde16f574c6908707d14ec05d1b0fa0c29249040ef4b786d52"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:G6OMSJBJ3AY567IEE2MLOFNCXO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stability analysis of financial contagion due to overlapping portfolios","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI","physics.soc-ph","q-fin.RM"],"primary_cat":"q-fin.GN","authors_text":"Cristopher Moore, Fabio Caccioli, J. Doyne Farmer, Munik Shrestha","submitted_at":"2012-10-22T18:13:27Z","abstract_excerpt":"Common asset holdings are widely believed to have been the primary vector of contagion in the recent financial crisis. We develop a network approach to the amplification of financial contagion due to the combination of overlapping portfolios and leverage, and we show how it can be understood in terms of a generalized branching process. By studying a stylized model we estimate the circumstances under which systemic instabilities are likely to occur as a function of parameters such as leverage, market crowding, diversification, and market impact. Although diversification may be good for individu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5987","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":"2026-05-18T03:41:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"51AFRDFK+fCFV1K0dUmWAzR6HunJMfpauHV9/jnu3fRX42EbwabsrXgANWVPqjKSuqCa4fEW1bMW+ANQKPmbAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:45:09.702620Z"},"content_sha256":"896a45f3b0d74da95f2af75d018641d59b5e282eb85822db603f50a8e236b353","schema_version":"1.0","event_id":"sha256:896a45f3b0d74da95f2af75d018641d59b5e282eb85822db603f50a8e236b353"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/G6OMSJBJ3AY567IEE2MLOFNCXO/bundle.json","state_url":"https://pith.science/pith/G6OMSJBJ3AY567IEE2MLOFNCXO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/G6OMSJBJ3AY567IEE2MLOFNCXO/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":"2026-05-31T19:45:09Z","links":{"resolver":"https://pith.science/pith/G6OMSJBJ3AY567IEE2MLOFNCXO","bundle":"https://pith.science/pith/G6OMSJBJ3AY567IEE2MLOFNCXO/bundle.json","state":"https://pith.science/pith/G6OMSJBJ3AY567IEE2MLOFNCXO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/G6OMSJBJ3AY567IEE2MLOFNCXO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:G6OMSJBJ3AY567IEE2MLOFNCXO","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":"e54e32e76e6c6755a1754e96c69b223deec1a971ebfa67ad4a8a827b0c62c1e9","cross_cats_sorted":["cs.SI","physics.soc-ph","q-fin.RM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.GN","submitted_at":"2012-10-22T18:13:27Z","title_canon_sha256":"6018a1bdebad3b0c4906a3fb254c864f3e8424658bcddc4efa809d71f852edc3"},"schema_version":"1.0","source":{"id":"1210.5987","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.5987","created_at":"2026-05-18T03:41:33Z"},{"alias_kind":"arxiv_version","alias_value":"1210.5987v1","created_at":"2026-05-18T03:41:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.5987","created_at":"2026-05-18T03:41:33Z"},{"alias_kind":"pith_short_12","alias_value":"G6OMSJBJ3AY5","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"G6OMSJBJ3AY567IE","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"G6OMSJBJ","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:896a45f3b0d74da95f2af75d018641d59b5e282eb85822db603f50a8e236b353","target":"graph","created_at":"2026-05-18T03:41:33Z","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":"Common asset holdings are widely believed to have been the primary vector of contagion in the recent financial crisis. We develop a network approach to the amplification of financial contagion due to the combination of overlapping portfolios and leverage, and we show how it can be understood in terms of a generalized branching process. By studying a stylized model we estimate the circumstances under which systemic instabilities are likely to occur as a function of parameters such as leverage, market crowding, diversification, and market impact. Although diversification may be good for individu","authors_text":"Cristopher Moore, Fabio Caccioli, J. Doyne Farmer, Munik Shrestha","cross_cats":["cs.SI","physics.soc-ph","q-fin.RM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.GN","submitted_at":"2012-10-22T18:13:27Z","title":"Stability analysis of financial contagion due to overlapping portfolios"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.5987","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:f79e5fd3cfb427cde16f574c6908707d14ec05d1b0fa0c29249040ef4b786d52","target":"record","created_at":"2026-05-18T03:41:33Z","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":"e54e32e76e6c6755a1754e96c69b223deec1a971ebfa67ad4a8a827b0c62c1e9","cross_cats_sorted":["cs.SI","physics.soc-ph","q-fin.RM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.GN","submitted_at":"2012-10-22T18:13:27Z","title_canon_sha256":"6018a1bdebad3b0c4906a3fb254c864f3e8424658bcddc4efa809d71f852edc3"},"schema_version":"1.0","source":{"id":"1210.5987","kind":"arxiv","version":1}},"canonical_sha256":"379cc92429d831df7d042698b715a2bb972b65fc1d337bc2824258b09d0f2a66","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"379cc92429d831df7d042698b715a2bb972b65fc1d337bc2824258b09d0f2a66","first_computed_at":"2026-05-18T03:41:33.197523Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:41:33.197523Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HG/mvhb8/nz6griJqx6zIUkKzEGPWxZvNpdwmBF78dkouzvMLJuIG77ABAuN8BHj7eCiEFIBaQJ2CTmOok3FDg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:41:33.198200Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.5987","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f79e5fd3cfb427cde16f574c6908707d14ec05d1b0fa0c29249040ef4b786d52","sha256:896a45f3b0d74da95f2af75d018641d59b5e282eb85822db603f50a8e236b353"],"state_sha256":"954f5afdd59a67e2372bde6fc2a2578440688f74e7efae8c8692e5e62ac69f4b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v4a0hBT2cYDxJvgfiv2oAj89Zhz7Cqy4yYH5Oa66FkDAF41Fx1GTXV41i1orR7/fmgVzPMu6IdtmBKegHCZ5Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:45:09.707262Z","bundle_sha256":"df6cce705aa2249b72dcbb90b0d5f9ffff17358d0d8a84461d41d619b6336c21"}}