{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:PMUKSS2TCNKEFRFJU2RKQT3MX4","short_pith_number":"pith:PMUKSS2T","canonical_record":{"source":{"id":"2311.17016","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.soc-ph","submitted_at":"2023-11-28T18:10:29Z","cross_cats_sorted":["nlin.AO"],"title_canon_sha256":"b9d9d13926a976b77f22e1526ec499541cfb4da1fdac4e5db17948d16de86b1b","abstract_canon_sha256":"4dc217a6ae477e0f1f48c7b5490bb79c0d8d41455ead51871060fc8d8e3e0ad5"},"schema_version":"1.0"},"canonical_sha256":"7b28a94b53135442c4a9a6a2a84f6cbf299263b458859eec09e12ecb32dbc758","source":{"kind":"arxiv","id":"2311.17016","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.17016","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"arxiv_version","alias_value":"2311.17016v1","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.17016","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"pith_short_12","alias_value":"PMUKSS2TCNKE","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"pith_short_16","alias_value":"PMUKSS2TCNKEFRFJ","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"pith_short_8","alias_value":"PMUKSS2T","created_at":"2026-07-05T07:17:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:PMUKSS2TCNKEFRFJU2RKQT3MX4","target":"record","payload":{"canonical_record":{"source":{"id":"2311.17016","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.soc-ph","submitted_at":"2023-11-28T18:10:29Z","cross_cats_sorted":["nlin.AO"],"title_canon_sha256":"b9d9d13926a976b77f22e1526ec499541cfb4da1fdac4e5db17948d16de86b1b","abstract_canon_sha256":"4dc217a6ae477e0f1f48c7b5490bb79c0d8d41455ead51871060fc8d8e3e0ad5"},"schema_version":"1.0"},"canonical_sha256":"7b28a94b53135442c4a9a6a2a84f6cbf299263b458859eec09e12ecb32dbc758","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:17:49.672509Z","signature_b64":"V8fuS/ZTSNqt7cBzDcUso+oIaAHphYLMnnw0XecPi6zQAvH4h4VkBSdUYoAS1aqd7/OPc6XIoqbgX4C2ChFJAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7b28a94b53135442c4a9a6a2a84f6cbf299263b458859eec09e12ecb32dbc758","last_reissued_at":"2026-07-05T07:17:49.672009Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:17:49.672009Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2311.17016","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":"2026-07-05T07:17:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"h6wu+vZcnfjSyPBWo1X+8tB7bQhLeT6TOFzKYAvkDhlUr8DlUejnzbw0mtC6sNpOets1m+e4ESFmheSHHa1HDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T15:59:24.890896Z"},"content_sha256":"1d36d77d0776133e4a4dd6192417fe231ed6166ebfb457ed18233228e92d7810","schema_version":"1.0","event_id":"sha256:1d36d77d0776133e4a4dd6192417fe231ed6166ebfb457ed18233228e92d7810"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:PMUKSS2TCNKEFRFJU2RKQT3MX4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Investigation of Indian stock markets using topological data analysis and geometry-inspired network measures","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["nlin.AO"],"primary_cat":"physics.soc-ph","authors_text":"Anirban Chakraborti, Areejit Samal, Hirdesh K. Pharasi, Saumitra Kulkarni, Sudharsan Vijayaraghavan, Sunil Kumar","submitted_at":"2023-11-28T18:10:29Z","abstract_excerpt":"Geometry-inspired measures (such as discrete Ricci curvatures) and topological data analysis (TDA) based methods (such as persistent homology) have become attractive tools for characterizing the higher-order structure of networks representing the financial systems. In this study, our goal is to perform a comparative analysis of both these approaches, especially by assessing the fragility and systemic risk in the Indian stock markets, which is known for its high volatility and risk. To achieve this goal, we analyze the time series of daily log-returns of stocks comprising the National Stock Exc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.17016","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2311.17016/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T07:17:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vep6tx3vtdKbaD55u0omNShQQnVN5SbhoWDGG/Q0R1trZrRyeDe1P7YHjD4EUubxCHt6DnBbQSUXkJLUEpm6Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-20T15:59:24.891276Z"},"content_sha256":"ba36edbb11dff27391fc60ed4d969509f1bbf7e575384d3b00d623fe11587de0","schema_version":"1.0","event_id":"sha256:ba36edbb11dff27391fc60ed4d969509f1bbf7e575384d3b00d623fe11587de0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4/bundle.json","state_url":"https://pith.science/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4/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":"2026-07-20T15:59:24Z","links":{"resolver":"https://pith.science/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4","bundle":"https://pith.science/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4/bundle.json","state":"https://pith.science/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PMUKSS2TCNKEFRFJU2RKQT3MX4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:PMUKSS2TCNKEFRFJU2RKQT3MX4","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":"4dc217a6ae477e0f1f48c7b5490bb79c0d8d41455ead51871060fc8d8e3e0ad5","cross_cats_sorted":["nlin.AO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.soc-ph","submitted_at":"2023-11-28T18:10:29Z","title_canon_sha256":"b9d9d13926a976b77f22e1526ec499541cfb4da1fdac4e5db17948d16de86b1b"},"schema_version":"1.0","source":{"id":"2311.17016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2311.17016","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"arxiv_version","alias_value":"2311.17016v1","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2311.17016","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"pith_short_12","alias_value":"PMUKSS2TCNKE","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"pith_short_16","alias_value":"PMUKSS2TCNKEFRFJ","created_at":"2026-07-05T07:17:49Z"},{"alias_kind":"pith_short_8","alias_value":"PMUKSS2T","created_at":"2026-07-05T07:17:49Z"}],"graph_snapshots":[{"event_id":"sha256:ba36edbb11dff27391fc60ed4d969509f1bbf7e575384d3b00d623fe11587de0","target":"graph","created_at":"2026-07-05T07:17:49Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2311.17016/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Geometry-inspired measures (such as discrete Ricci curvatures) and topological data analysis (TDA) based methods (such as persistent homology) have become attractive tools for characterizing the higher-order structure of networks representing the financial systems. In this study, our goal is to perform a comparative analysis of both these approaches, especially by assessing the fragility and systemic risk in the Indian stock markets, which is known for its high volatility and risk. To achieve this goal, we analyze the time series of daily log-returns of stocks comprising the National Stock Exc","authors_text":"Anirban Chakraborti, Areejit Samal, Hirdesh K. Pharasi, Saumitra Kulkarni, Sudharsan Vijayaraghavan, Sunil Kumar","cross_cats":["nlin.AO"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.soc-ph","submitted_at":"2023-11-28T18:10:29Z","title":"Investigation of Indian stock markets using topological data analysis and geometry-inspired network measures"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2311.17016","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":"sha256:1d36d77d0776133e4a4dd6192417fe231ed6166ebfb457ed18233228e92d7810","target":"record","created_at":"2026-07-05T07:17:49Z","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":"4dc217a6ae477e0f1f48c7b5490bb79c0d8d41455ead51871060fc8d8e3e0ad5","cross_cats_sorted":["nlin.AO"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.soc-ph","submitted_at":"2023-11-28T18:10:29Z","title_canon_sha256":"b9d9d13926a976b77f22e1526ec499541cfb4da1fdac4e5db17948d16de86b1b"},"schema_version":"1.0","source":{"id":"2311.17016","kind":"arxiv","version":1}},"canonical_sha256":"7b28a94b53135442c4a9a6a2a84f6cbf299263b458859eec09e12ecb32dbc758","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7b28a94b53135442c4a9a6a2a84f6cbf299263b458859eec09e12ecb32dbc758","first_computed_at":"2026-07-05T07:17:49.672009Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:17:49.672009Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V8fuS/ZTSNqt7cBzDcUso+oIaAHphYLMnnw0XecPi6zQAvH4h4VkBSdUYoAS1aqd7/OPc6XIoqbgX4C2ChFJAw==","signature_status":"signed_v1","signed_at":"2026-07-05T07:17:49.672509Z","signed_message":"canonical_sha256_bytes"},"source_id":"2311.17016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d36d77d0776133e4a4dd6192417fe231ed6166ebfb457ed18233228e92d7810","sha256:ba36edbb11dff27391fc60ed4d969509f1bbf7e575384d3b00d623fe11587de0"],"state_sha256":"2ac6dc0e14a5f026c20da077e745656aa30d8dc118bd5c8850a734c2cb0832e9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UVtl0IKpK60OKHjwd3KzdwzW9qsBGjeoKaTZJxEyAg5HJrqVqPGrTgSJhx/Fv3cDMd57exUoWK80sJDUIzy9Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-20T15:59:24.893410Z","bundle_sha256":"9092f00b00f8eefa896a04f5027901e83224528307fda1e7142e10c332708df8"}}