{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:UWEUETWQGE5ISSJ6Q3U4TCHL4P","short_pith_number":"pith:UWEUETWQ","canonical_record":{"source":{"id":"1712.00462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2017-12-01T19:09:32Z","cross_cats_sorted":[],"title_canon_sha256":"b027f05a88911796ee4f248ab08d4d52866f38e8b1fa24431cfb743dbd0c4ebc","abstract_canon_sha256":"aaeeb35ce1f03389296b4bafc74eba07656ccac968d85e2a5e438a9c584d9847"},"schema_version":"1.0"},"canonical_sha256":"a589424ed0313a89493e86e9c988ebe3c564c117bec1d1259155f98d4ce8eeb3","source":{"kind":"arxiv","id":"1712.00462","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.00462","created_at":"2026-05-18T00:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"1712.00462v1","created_at":"2026-05-18T00:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.00462","created_at":"2026-05-18T00:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"UWEUETWQGE5I","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"UWEUETWQGE5ISSJ6","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"UWEUETWQ","created_at":"2026-05-18T12:31:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:UWEUETWQGE5ISSJ6Q3U4TCHL4P","target":"record","payload":{"canonical_record":{"source":{"id":"1712.00462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2017-12-01T19:09:32Z","cross_cats_sorted":[],"title_canon_sha256":"b027f05a88911796ee4f248ab08d4d52866f38e8b1fa24431cfb743dbd0c4ebc","abstract_canon_sha256":"aaeeb35ce1f03389296b4bafc74eba07656ccac968d85e2a5e438a9c584d9847"},"schema_version":"1.0"},"canonical_sha256":"a589424ed0313a89493e86e9c988ebe3c564c117bec1d1259155f98d4ce8eeb3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:29:05.241628Z","signature_b64":"QsABY6d8/+Gw2vdQ2QfffqCaMam078ytZkcLK/7Ac1sa4AiV6mMDWuvvtTsS6eO2BvOrQoDP7fTsiRdf/hwGCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a589424ed0313a89493e86e9c988ebe3c564c117bec1d1259155f98d4ce8eeb3","last_reissued_at":"2026-05-18T00:29:05.241144Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:29:05.241144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1712.00462","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":"2026-05-18T00:29:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eSH8OAFVo9GxgtFgcfBXrvf3j70zNi2dp7QcZxmELdiDm3ormD6gjcX2YQ6bD5qmrR10aK8Ep2MLYQaX0sqxDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T15:35:09.167717Z"},"content_sha256":"99510fee5d28b949b39ab5f624b3ca3e8e450502d2b32360ce24a9568a102bfe","schema_version":"1.0","event_id":"sha256:99510fee5d28b949b39ab5f624b3ca3e8e450502d2b32360ce24a9568a102bfe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:UWEUETWQGE5ISSJ6Q3U4TCHL4P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Functional brain networks reveal the existence of cognitive reserve and the interplay between network topology and dynamics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"q-bio.NC","authors_text":"David L\\'opez-Sanz, Fernando Maest\\'u, Javier M. Buld\\'u, Johann H. Mart\\'inez, Jos\\'e A. Pineda-Pardo, Mar\\'ia E. L\\'opez, Mario Chavez, Pedro Ariza, Pedro Gil","submitted_at":"2017-12-01T19:09:32Z","abstract_excerpt":"We investigated how the organization of functional brain networks was related to cognitive reserve (CR) during a memory task in healthy aging. We obtained the magnetoencephalographic functional networks of 20 elders with a high or low CR level to analyse the differences at network features. We reported a negative correlation between synchronization of the whole network and CR, and observed differences both at the node and at the network level in: the average shortest path and the network outreach. Individuals with high CR required functional networks with lower links to successfully carry out "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.00462","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":"2026-05-18T00:29:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9zkYc+owNyQNJbMmLWcL5gCypTHmDrmR+3Sv4arhK58x/J1DqB74JZMrRpwL6xVYdaGwFeonM5RdAwxZEywhDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T15:35:09.168068Z"},"content_sha256":"c8a1fc351a9e3d33e4fb3cdc7d5290a5323466efe4ae50f28863705fce864e84","schema_version":"1.0","event_id":"sha256:c8a1fc351a9e3d33e4fb3cdc7d5290a5323466efe4ae50f28863705fce864e84"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P/bundle.json","state_url":"https://pith.science/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P/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":"2026-06-10T15:35:09Z","links":{"resolver":"https://pith.science/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P","bundle":"https://pith.science/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P/bundle.json","state":"https://pith.science/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UWEUETWQGE5ISSJ6Q3U4TCHL4P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:UWEUETWQGE5ISSJ6Q3U4TCHL4P","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":"aaeeb35ce1f03389296b4bafc74eba07656ccac968d85e2a5e438a9c584d9847","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2017-12-01T19:09:32Z","title_canon_sha256":"b027f05a88911796ee4f248ab08d4d52866f38e8b1fa24431cfb743dbd0c4ebc"},"schema_version":"1.0","source":{"id":"1712.00462","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1712.00462","created_at":"2026-05-18T00:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"1712.00462v1","created_at":"2026-05-18T00:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.00462","created_at":"2026-05-18T00:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"UWEUETWQGE5I","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_16","alias_value":"UWEUETWQGE5ISSJ6","created_at":"2026-05-18T12:31:49Z"},{"alias_kind":"pith_short_8","alias_value":"UWEUETWQ","created_at":"2026-05-18T12:31:49Z"}],"graph_snapshots":[{"event_id":"sha256:c8a1fc351a9e3d33e4fb3cdc7d5290a5323466efe4ae50f28863705fce864e84","target":"graph","created_at":"2026-05-18T00:29:05Z","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":"We investigated how the organization of functional brain networks was related to cognitive reserve (CR) during a memory task in healthy aging. We obtained the magnetoencephalographic functional networks of 20 elders with a high or low CR level to analyse the differences at network features. We reported a negative correlation between synchronization of the whole network and CR, and observed differences both at the node and at the network level in: the average shortest path and the network outreach. Individuals with high CR required functional networks with lower links to successfully carry out ","authors_text":"David L\\'opez-Sanz, Fernando Maest\\'u, Javier M. Buld\\'u, Johann H. Mart\\'inez, Jos\\'e A. Pineda-Pardo, Mar\\'ia E. L\\'opez, Mario Chavez, Pedro Ariza, Pedro Gil","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2017-12-01T19:09:32Z","title":"Functional brain networks reveal the existence of cognitive reserve and the interplay between network topology and dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.00462","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":"sha256:99510fee5d28b949b39ab5f624b3ca3e8e450502d2b32360ce24a9568a102bfe","target":"record","created_at":"2026-05-18T00:29:05Z","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":"aaeeb35ce1f03389296b4bafc74eba07656ccac968d85e2a5e438a9c584d9847","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.NC","submitted_at":"2017-12-01T19:09:32Z","title_canon_sha256":"b027f05a88911796ee4f248ab08d4d52866f38e8b1fa24431cfb743dbd0c4ebc"},"schema_version":"1.0","source":{"id":"1712.00462","kind":"arxiv","version":1}},"canonical_sha256":"a589424ed0313a89493e86e9c988ebe3c564c117bec1d1259155f98d4ce8eeb3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a589424ed0313a89493e86e9c988ebe3c564c117bec1d1259155f98d4ce8eeb3","first_computed_at":"2026-05-18T00:29:05.241144Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:29:05.241144Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QsABY6d8/+Gw2vdQ2QfffqCaMam078ytZkcLK/7Ac1sa4AiV6mMDWuvvtTsS6eO2BvOrQoDP7fTsiRdf/hwGCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:29:05.241628Z","signed_message":"canonical_sha256_bytes"},"source_id":"1712.00462","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:99510fee5d28b949b39ab5f624b3ca3e8e450502d2b32360ce24a9568a102bfe","sha256:c8a1fc351a9e3d33e4fb3cdc7d5290a5323466efe4ae50f28863705fce864e84"],"state_sha256":"7dbee7d259b75df257410eb755b720b3b85475806bbca2611898c7e39704b10f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eLqvj657hhSXQbP7kIL62sIkmHGO8Pzr26pFepexxsyQTf4mqkpzA1MzDOTkPWZTxzsZaAgpJywg5wPlt+lRAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T15:35:09.170028Z","bundle_sha256":"25c4c1011c968f8df1a1b2cf70e291007a83e06131d35751a2636e4eb8a349e2"}}