{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:CMA45UFSAS4ITRXQOLN5USUMUH","short_pith_number":"pith:CMA45UFS","canonical_record":{"source":{"id":"1112.1156","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.RM","submitted_at":"2011-12-06T04:38:06Z","cross_cats_sorted":["cs.SI","q-fin.CP"],"title_canon_sha256":"1f1a18e3402dae84aab9f9fc18a881607100ab589d9131a2c460e411797c89ad","abstract_canon_sha256":"3f4d0c2baed67d053923f2aacc8612ef9b5c807e2ed4363777e7c2dc77b95575"},"schema_version":"1.0"},"canonical_sha256":"1301ced0b204b889c6f072dbda4a8ca1c2da879fb1a49bcb44736fcdd336cfb5","source":{"kind":"arxiv","id":"1112.1156","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1156","created_at":"2026-05-18T04:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1156v1","created_at":"2026-05-18T04:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1156","created_at":"2026-05-18T04:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"CMA45UFSAS4I","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CMA45UFSAS4ITRXQ","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CMA45UFS","created_at":"2026-05-18T12:26:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:CMA45UFSAS4ITRXQOLN5USUMUH","target":"record","payload":{"canonical_record":{"source":{"id":"1112.1156","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.RM","submitted_at":"2011-12-06T04:38:06Z","cross_cats_sorted":["cs.SI","q-fin.CP"],"title_canon_sha256":"1f1a18e3402dae84aab9f9fc18a881607100ab589d9131a2c460e411797c89ad","abstract_canon_sha256":"3f4d0c2baed67d053923f2aacc8612ef9b5c807e2ed4363777e7c2dc77b95575"},"schema_version":"1.0"},"canonical_sha256":"1301ced0b204b889c6f072dbda4a8ca1c2da879fb1a49bcb44736fcdd336cfb5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:06:56.120110Z","signature_b64":"V9hvnDg8f+xjOIlsCvC+5gZpWyL4tAr2XyAgUqsopPc7vasc9Z9ZtfH/4/Rej/2lThbxfGeq4IIZRwZLavB7AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1301ced0b204b889c6f072dbda4a8ca1c2da879fb1a49bcb44736fcdd336cfb5","last_reissued_at":"2026-05-18T04:06:56.119305Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:06:56.119305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.1156","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":"2026-05-18T04:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hIOCu7SLWevtgHjPfxVab7Vtlzqgc8g5asWWnDIxMQOapQyKWO7xcKxnQZzNLu1fw5SQDYuZzIcYr2qTR+V7BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T14:32:23.030182Z"},"content_sha256":"7485752ddbc2490e163a2a3ecc3127140c2ad582c82a621db085a5e80215f75e","schema_version":"1.0","event_id":"sha256:7485752ddbc2490e163a2a3ecc3127140c2ad582c82a621db085a5e80215f75e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:CMA45UFSAS4ITRXQOLN5USUMUH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Looking for grass-root sources of systemic risk: the case of \"cheques-as-collateral\" network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI","q-fin.CP"],"primary_cat":"q-fin.RM","authors_text":"Michalis Vafopoulos","submitted_at":"2011-12-06T04:38:06Z","abstract_excerpt":"The global financial system has become highly connected and complex. Has been proven in practice that existing models, measures and reports of financial risk fail to capture some important systemic dimensions. Only lately, advisory boards have been established in high level and regulations are directly targeted to systemic risk. In the same direction, a growing number of researchers employ network analysis to model systemic risk in financial networks. Current approaches are concentrated on interbank payment network flows in national and international level. This work builds on existing approac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1156","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":"2026-05-18T04:06:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"c5fICjIBiw5aTpRF8WJSDvOU4bE0A0OWOOORtYin100rJ27ggOW4Ms++ywHpHsC41XuQQTielCBx2Im6a/Z8Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T14:32:23.030552Z"},"content_sha256":"2936fdb39906860065f20abf04b64265f85579136cb72483fb879ddfac729d01","schema_version":"1.0","event_id":"sha256:2936fdb39906860065f20abf04b64265f85579136cb72483fb879ddfac729d01"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CMA45UFSAS4ITRXQOLN5USUMUH/bundle.json","state_url":"https://pith.science/pith/CMA45UFSAS4ITRXQOLN5USUMUH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CMA45UFSAS4ITRXQOLN5USUMUH/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":"2026-06-24T14:32:23Z","links":{"resolver":"https://pith.science/pith/CMA45UFSAS4ITRXQOLN5USUMUH","bundle":"https://pith.science/pith/CMA45UFSAS4ITRXQOLN5USUMUH/bundle.json","state":"https://pith.science/pith/CMA45UFSAS4ITRXQOLN5USUMUH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CMA45UFSAS4ITRXQOLN5USUMUH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:CMA45UFSAS4ITRXQOLN5USUMUH","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":"3f4d0c2baed67d053923f2aacc8612ef9b5c807e2ed4363777e7c2dc77b95575","cross_cats_sorted":["cs.SI","q-fin.CP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.RM","submitted_at":"2011-12-06T04:38:06Z","title_canon_sha256":"1f1a18e3402dae84aab9f9fc18a881607100ab589d9131a2c460e411797c89ad"},"schema_version":"1.0","source":{"id":"1112.1156","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.1156","created_at":"2026-05-18T04:06:56Z"},{"alias_kind":"arxiv_version","alias_value":"1112.1156v1","created_at":"2026-05-18T04:06:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.1156","created_at":"2026-05-18T04:06:56Z"},{"alias_kind":"pith_short_12","alias_value":"CMA45UFSAS4I","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_16","alias_value":"CMA45UFSAS4ITRXQ","created_at":"2026-05-18T12:26:26Z"},{"alias_kind":"pith_short_8","alias_value":"CMA45UFS","created_at":"2026-05-18T12:26:26Z"}],"graph_snapshots":[{"event_id":"sha256:2936fdb39906860065f20abf04b64265f85579136cb72483fb879ddfac729d01","target":"graph","created_at":"2026-05-18T04:06:56Z","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":"The global financial system has become highly connected and complex. Has been proven in practice that existing models, measures and reports of financial risk fail to capture some important systemic dimensions. Only lately, advisory boards have been established in high level and regulations are directly targeted to systemic risk. In the same direction, a growing number of researchers employ network analysis to model systemic risk in financial networks. Current approaches are concentrated on interbank payment network flows in national and international level. This work builds on existing approac","authors_text":"Michalis Vafopoulos","cross_cats":["cs.SI","q-fin.CP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.RM","submitted_at":"2011-12-06T04:38:06Z","title":"Looking for grass-root sources of systemic risk: the case of \"cheques-as-collateral\" network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.1156","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":"sha256:7485752ddbc2490e163a2a3ecc3127140c2ad582c82a621db085a5e80215f75e","target":"record","created_at":"2026-05-18T04:06:56Z","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":"3f4d0c2baed67d053923f2aacc8612ef9b5c807e2ed4363777e7c2dc77b95575","cross_cats_sorted":["cs.SI","q-fin.CP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-fin.RM","submitted_at":"2011-12-06T04:38:06Z","title_canon_sha256":"1f1a18e3402dae84aab9f9fc18a881607100ab589d9131a2c460e411797c89ad"},"schema_version":"1.0","source":{"id":"1112.1156","kind":"arxiv","version":1}},"canonical_sha256":"1301ced0b204b889c6f072dbda4a8ca1c2da879fb1a49bcb44736fcdd336cfb5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1301ced0b204b889c6f072dbda4a8ca1c2da879fb1a49bcb44736fcdd336cfb5","first_computed_at":"2026-05-18T04:06:56.119305Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:06:56.119305Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V9hvnDg8f+xjOIlsCvC+5gZpWyL4tAr2XyAgUqsopPc7vasc9Z9ZtfH/4/Rej/2lThbxfGeq4IIZRwZLavB7AA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:06:56.120110Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.1156","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7485752ddbc2490e163a2a3ecc3127140c2ad582c82a621db085a5e80215f75e","sha256:2936fdb39906860065f20abf04b64265f85579136cb72483fb879ddfac729d01"],"state_sha256":"ae74264f9b02a59f2051ab801cae4a0240d6130dc4e1f256ffd8a674110b53f7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jC2qB1MKJWuYNXaKOMOzkCI0hc5ZSS57Xxh9kVI/WpLuv+EJDhWvIq5QpPWFILaIZHqzbwdF652A+m6HbivbCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T14:32:23.032860Z","bundle_sha256":"71775f51f51996dff2cd3b31e9d8eb84c4643435874627dc0b4fb43b0aef1c72"}}