{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:YI4ROSORJMTZZSELBSZ6IJQDKR","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":"a21f868e952204fd4a975c622417e39d3cc89c23d250e528f3b128b02a5a910c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-09-15T22:32:07Z","title_canon_sha256":"f5c310b1c951d8c663bd15492284469782750164765077b1e7ed0ff430145cf6"},"schema_version":"1.0","source":{"id":"2009.07376","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2009.07376","created_at":"2026-07-05T01:35:51Z"},{"alias_kind":"arxiv_version","alias_value":"2009.07376v1","created_at":"2026-07-05T01:35:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2009.07376","created_at":"2026-07-05T01:35:51Z"},{"alias_kind":"pith_short_12","alias_value":"YI4ROSORJMTZ","created_at":"2026-07-05T01:35:51Z"},{"alias_kind":"pith_short_16","alias_value":"YI4ROSORJMTZZSEL","created_at":"2026-07-05T01:35:51Z"},{"alias_kind":"pith_short_8","alias_value":"YI4ROSOR","created_at":"2026-07-05T01:35:51Z"}],"graph_snapshots":[{"event_id":"sha256:aa9d8488fb990349d40ce9c0ff28533a796baee10031827f1b16bbce002b120a","target":"graph","created_at":"2026-07-05T01:35:51Z","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/2009.07376/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Diffusion magnetic resonance imaging (dMRI) is a relatively modern technique used to study tissue microstructure in a non-invasive way. Non-Gaussian diffusion representation is related to the restricted diffusion and can provide information about the underlying tissue properties. In this paper, we analytically derive $n$-th order statistics of the signal considering a stretched-exponential representation of the diffusion. Then, we retrieve the Q-space quantitative measures such as the Return-To-the-Origin Probability (RTOP), Q-space mean square displacement (QMSD), Q-space mean fourth-order di","authors_text":"Aja-Fern\\'andez, Derek K. Jones, Fabian Bogusz, Maryam Afzali, Tomasz Pieciak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-09-15T22:32:07Z","title":"Q-space quantitative diffusion MRI measures using a stretched-exponential representation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2009.07376","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":"sha256:1b1ad020286dedab3a29d07fba7bea8d8cd1beac615e85fe33caee9677ed8d76","target":"record","created_at":"2026-07-05T01:35:51Z","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":"a21f868e952204fd4a975c622417e39d3cc89c23d250e528f3b128b02a5a910c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2020-09-15T22:32:07Z","title_canon_sha256":"f5c310b1c951d8c663bd15492284469782750164765077b1e7ed0ff430145cf6"},"schema_version":"1.0","source":{"id":"2009.07376","kind":"arxiv","version":1}},"canonical_sha256":"c2391749d14b279cc88b0cb3e42603545ffe418f4da31678a5a3a18b38f20652","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c2391749d14b279cc88b0cb3e42603545ffe418f4da31678a5a3a18b38f20652","first_computed_at":"2026-07-05T01:35:51.686873Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:35:51.686873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JwV4xYMlDWP2BR/qi/6qT9JRcTIa9lIQTNruARwAyWiklFwXYIb5MS07evP6c4h6LKSiEH+fj8Ixkk3myPXHBw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:35:51.687278Z","signed_message":"canonical_sha256_bytes"},"source_id":"2009.07376","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1b1ad020286dedab3a29d07fba7bea8d8cd1beac615e85fe33caee9677ed8d76","sha256:aa9d8488fb990349d40ce9c0ff28533a796baee10031827f1b16bbce002b120a"],"state_sha256":"205168e63b21d7f3f828b80a9a66c6cb2026a3751fed9edbd3f91ce7631a97e1"}