{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ST3XBEYTUXV7JP3OGRO6LVRLQS","short_pith_number":"pith:ST3XBEYT","canonical_record":{"source":{"id":"1810.09935","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2018-10-23T16:01:23Z","cross_cats_sorted":[],"title_canon_sha256":"793fb989d248534ad1ef4433026eae7e0e2442b428660fbe119ce69190e7693b","abstract_canon_sha256":"60fa859332c324e21befb97a7cc8af8abb56f0785e6ba59a01f6334cc7ca3451"},"schema_version":"1.0"},"canonical_sha256":"94f7709313a5ebf4bf6e345de5d62b8494d1ee326b9392c6d337b173b0d06b61","source":{"kind":"arxiv","id":"1810.09935","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.09935","created_at":"2026-05-17T23:54:53Z"},{"alias_kind":"arxiv_version","alias_value":"1810.09935v4","created_at":"2026-05-17T23:54:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.09935","created_at":"2026-05-17T23:54:53Z"},{"alias_kind":"pith_short_12","alias_value":"ST3XBEYTUXV7","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"ST3XBEYTUXV7JP3O","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"ST3XBEYT","created_at":"2026-05-18T12:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ST3XBEYTUXV7JP3OGRO6LVRLQS","target":"record","payload":{"canonical_record":{"source":{"id":"1810.09935","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2018-10-23T16:01:23Z","cross_cats_sorted":[],"title_canon_sha256":"793fb989d248534ad1ef4433026eae7e0e2442b428660fbe119ce69190e7693b","abstract_canon_sha256":"60fa859332c324e21befb97a7cc8af8abb56f0785e6ba59a01f6334cc7ca3451"},"schema_version":"1.0"},"canonical_sha256":"94f7709313a5ebf4bf6e345de5d62b8494d1ee326b9392c6d337b173b0d06b61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:53.558613Z","signature_b64":"jw9V/VARLl7bj/fNZQwBUwKVHJ7WMVy7i9koN34Lu3DGRoug1sXSHw1pWImT4NjBk+hKfFwVGjsjSP/iwy2ZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94f7709313a5ebf4bf6e345de5d62b8494d1ee326b9392c6d337b173b0d06b61","last_reissued_at":"2026-05-17T23:54:53.558018Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:53.558018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.09935","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:54:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OaeWvf8qygkwKFwnWl+eSBRxyOZjtmMRISmHjJk6MYIwN5WR35mR+o2ze5koM2NKbnAc0KSChNpp2VQjaXDxCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:16:04.372928Z"},"content_sha256":"e724d1de8f69478d0eef5af9b8ac2939bac0b317b7634d962656112c565dd745","schema_version":"1.0","event_id":"sha256:e724d1de8f69478d0eef5af9b8ac2939bac0b317b7634d962656112c565dd745"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ST3XBEYTUXV7JP3OGRO6LVRLQS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Network Structural Dependency in the Human Connectome Across the Life-Span","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.NC","authors_text":"Ai Wern Chung, Markus D. Schirmer, Natalia S. Rost, P. Ellen Grant","submitted_at":"2018-10-23T16:01:23Z","abstract_excerpt":"Principles of network topology have been widely studied in the human connectome. Of particular interest is the modularity of the human brain, where the connectome is divided into subnetworks and subsequently changes with development, aging or disease are investigated. We present a weighted network measure, the Network Dependency Index (NDI), to identify an individual region's importance to the global functioning of the network. Importantly, we utilize NDI to differentiate four subnetworks (Tiers) in the human connectome following Gaussian Mixture Model fitting. We analyze the topological aspec"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.09935","kind":"arxiv","version":4},"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":"2026-05-17T23:54:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"74W8Rh7w/Om7Z0qmKDijN22Di19h4LtsCzVUKgt3k29LqQWAs63VvFQ7eeNALVvOMcPEQBSA1YCzSs7NS/SyAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:16:04.373303Z"},"content_sha256":"042d85b327916e54d5a960da0bfad37d451343534fb957151765faba0905949d","schema_version":"1.0","event_id":"sha256:042d85b327916e54d5a960da0bfad37d451343534fb957151765faba0905949d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS/bundle.json","state_url":"https://pith.science/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS/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":"2026-05-30T14:16:04Z","links":{"resolver":"https://pith.science/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS","bundle":"https://pith.science/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS/bundle.json","state":"https://pith.science/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ST3XBEYTUXV7JP3OGRO6LVRLQS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ST3XBEYTUXV7JP3OGRO6LVRLQS","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":"60fa859332c324e21befb97a7cc8af8abb56f0785e6ba59a01f6334cc7ca3451","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2018-10-23T16:01:23Z","title_canon_sha256":"793fb989d248534ad1ef4433026eae7e0e2442b428660fbe119ce69190e7693b"},"schema_version":"1.0","source":{"id":"1810.09935","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.09935","created_at":"2026-05-17T23:54:53Z"},{"alias_kind":"arxiv_version","alias_value":"1810.09935v4","created_at":"2026-05-17T23:54:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.09935","created_at":"2026-05-17T23:54:53Z"},{"alias_kind":"pith_short_12","alias_value":"ST3XBEYTUXV7","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"ST3XBEYTUXV7JP3O","created_at":"2026-05-18T12:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"ST3XBEYT","created_at":"2026-05-18T12:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:042d85b327916e54d5a960da0bfad37d451343534fb957151765faba0905949d","target":"graph","created_at":"2026-05-17T23:54:53Z","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":"Principles of network topology have been widely studied in the human connectome. Of particular interest is the modularity of the human brain, where the connectome is divided into subnetworks and subsequently changes with development, aging or disease are investigated. We present a weighted network measure, the Network Dependency Index (NDI), to identify an individual region's importance to the global functioning of the network. Importantly, we utilize NDI to differentiate four subnetworks (Tiers) in the human connectome following Gaussian Mixture Model fitting. We analyze the topological aspec","authors_text":"Ai Wern Chung, Markus D. Schirmer, Natalia S. Rost, P. Ellen Grant","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2018-10-23T16:01:23Z","title":"Network Structural Dependency in the Human Connectome Across the Life-Span"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.09935","kind":"arxiv","version":4},"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:e724d1de8f69478d0eef5af9b8ac2939bac0b317b7634d962656112c565dd745","target":"record","created_at":"2026-05-17T23:54:53Z","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":"60fa859332c324e21befb97a7cc8af8abb56f0785e6ba59a01f6334cc7ca3451","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2018-10-23T16:01:23Z","title_canon_sha256":"793fb989d248534ad1ef4433026eae7e0e2442b428660fbe119ce69190e7693b"},"schema_version":"1.0","source":{"id":"1810.09935","kind":"arxiv","version":4}},"canonical_sha256":"94f7709313a5ebf4bf6e345de5d62b8494d1ee326b9392c6d337b173b0d06b61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94f7709313a5ebf4bf6e345de5d62b8494d1ee326b9392c6d337b173b0d06b61","first_computed_at":"2026-05-17T23:54:53.558018Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:54:53.558018Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jw9V/VARLl7bj/fNZQwBUwKVHJ7WMVy7i9koN34Lu3DGRoug1sXSHw1pWImT4NjBk+hKfFwVGjsjSP/iwy2ZBw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:54:53.558613Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.09935","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e724d1de8f69478d0eef5af9b8ac2939bac0b317b7634d962656112c565dd745","sha256:042d85b327916e54d5a960da0bfad37d451343534fb957151765faba0905949d"],"state_sha256":"9b788a72ab332e6f024937f64190c74994d42916d1368f047d4b250839773e33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VJGr1Zup3moswIDroCELpqjCyEtRQ79NXwgCQ7eD4bTsAlnMIyEriLDEGGiYD/gUSgyUl3+foymho4ds43D4DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:16:04.375873Z","bundle_sha256":"e97039c387610dd45b0ac9849b30495bdbd726e90d6aedba5ce31295040e9362"}}