{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:A5HR73FJSNCZVYSMXN5NYMERZS","short_pith_number":"pith:A5HR73FJ","canonical_record":{"source":{"id":"2312.12465","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-12-19T00:43:20Z","cross_cats_sorted":[],"title_canon_sha256":"66080ae45a29f7cbe10f0bc509235e00b6e6eed1e60af67fe7d605b957b70171","abstract_canon_sha256":"bf90b20aa3be62d88dc4edf00bb98f5263d944744f32d17da0b031cf54f4a2df"},"schema_version":"1.0"},"canonical_sha256":"074f1feca993459ae24cbb7adc3091cca747d30a1dbd6e76377c5e1e216af9a2","source":{"kind":"arxiv","id":"2312.12465","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.12465","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"arxiv_version","alias_value":"2312.12465v1","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.12465","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"pith_short_12","alias_value":"A5HR73FJSNCZ","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"pith_short_16","alias_value":"A5HR73FJSNCZVYSM","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"pith_short_8","alias_value":"A5HR73FJ","created_at":"2026-07-05T07:26:21Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:A5HR73FJSNCZVYSMXN5NYMERZS","target":"record","payload":{"canonical_record":{"source":{"id":"2312.12465","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-12-19T00:43:20Z","cross_cats_sorted":[],"title_canon_sha256":"66080ae45a29f7cbe10f0bc509235e00b6e6eed1e60af67fe7d605b957b70171","abstract_canon_sha256":"bf90b20aa3be62d88dc4edf00bb98f5263d944744f32d17da0b031cf54f4a2df"},"schema_version":"1.0"},"canonical_sha256":"074f1feca993459ae24cbb7adc3091cca747d30a1dbd6e76377c5e1e216af9a2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:26:21.347992Z","signature_b64":"ShrQz9giX1ajSy/NgB4mOB1u1xKwlWyuZaZ14wtPMU6/ea7L5BEFMCayWDTUiJuACIa9wSrV49olu20jfbyyDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"074f1feca993459ae24cbb7adc3091cca747d30a1dbd6e76377c5e1e216af9a2","last_reissued_at":"2026-07-05T07:26:21.347489Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:26:21.347489Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.12465","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":"2026-07-05T07:26:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tROhH75R0F9+xZnrlyec0w8kE2T8LloGnJF/Di05wlgK9oF8H4SjnOaONbVw5sdBXRgQ8zf+YRDi8nY3nz00Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T05:48:35.611417Z"},"content_sha256":"01ddc3beeb191145d2f3a47c4ff4e16a4ffdf1b03b293d5eb24aeb4d78b5e52a","schema_version":"1.0","event_id":"sha256:01ddc3beeb191145d2f3a47c4ff4e16a4ffdf1b03b293d5eb24aeb4d78b5e52a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:A5HR73FJSNCZVYSMXN5NYMERZS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Clustering of Global Magnetospheric Observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.space-ph","authors_text":"Banafsheh Ferdousi, James Edmond, Joachim Raeder, Maria Elena Innocenti, Matthew Argall","submitted_at":"2023-12-19T00:43:20Z","abstract_excerpt":"The use of supervised methods in space science have demonstrated powerful capability in classification tasks, but unsupervised methods have been less utilized for the clustering of spacecraft observations. We use a combination of unsupervised methods, being principal component analysis, self-organizing maps, and hierarchical agglomerative clustering, to make predictions on if THEMIS and MMS observations occurred in the magnetosphere, magnetosheath, or the solar wind. The resulting predictions are validated visually by analyzing the distribution of predictions and studying individual time serie"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.12465","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/2312.12465/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":"2026-07-05T07:26:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QWzozox0w6jdLwKm0KDE+kxQbLx/RHKS8ZbkaT8rOjpDSrUxI7/bQMN7/Y7gThQxI9sXFhKSUoLw8g5+UMikBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T05:48:35.612098Z"},"content_sha256":"c1f30fda4ed0d5280324ae6d2dcc0ba8046dc68939bbae2d3a5784e8c98920e8","schema_version":"1.0","event_id":"sha256:c1f30fda4ed0d5280324ae6d2dcc0ba8046dc68939bbae2d3a5784e8c98920e8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A5HR73FJSNCZVYSMXN5NYMERZS/bundle.json","state_url":"https://pith.science/pith/A5HR73FJSNCZVYSMXN5NYMERZS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A5HR73FJSNCZVYSMXN5NYMERZS/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":"2026-08-11T05:48:35Z","links":{"resolver":"https://pith.science/pith/A5HR73FJSNCZVYSMXN5NYMERZS","bundle":"https://pith.science/pith/A5HR73FJSNCZVYSMXN5NYMERZS/bundle.json","state":"https://pith.science/pith/A5HR73FJSNCZVYSMXN5NYMERZS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A5HR73FJSNCZVYSMXN5NYMERZS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:A5HR73FJSNCZVYSMXN5NYMERZS","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":"bf90b20aa3be62d88dc4edf00bb98f5263d944744f32d17da0b031cf54f4a2df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-12-19T00:43:20Z","title_canon_sha256":"66080ae45a29f7cbe10f0bc509235e00b6e6eed1e60af67fe7d605b957b70171"},"schema_version":"1.0","source":{"id":"2312.12465","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.12465","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"arxiv_version","alias_value":"2312.12465v1","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.12465","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"pith_short_12","alias_value":"A5HR73FJSNCZ","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"pith_short_16","alias_value":"A5HR73FJSNCZVYSM","created_at":"2026-07-05T07:26:21Z"},{"alias_kind":"pith_short_8","alias_value":"A5HR73FJ","created_at":"2026-07-05T07:26:21Z"}],"graph_snapshots":[{"event_id":"sha256:c1f30fda4ed0d5280324ae6d2dcc0ba8046dc68939bbae2d3a5784e8c98920e8","target":"graph","created_at":"2026-07-05T07:26:21Z","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/2312.12465/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The use of supervised methods in space science have demonstrated powerful capability in classification tasks, but unsupervised methods have been less utilized for the clustering of spacecraft observations. We use a combination of unsupervised methods, being principal component analysis, self-organizing maps, and hierarchical agglomerative clustering, to make predictions on if THEMIS and MMS observations occurred in the magnetosphere, magnetosheath, or the solar wind. The resulting predictions are validated visually by analyzing the distribution of predictions and studying individual time serie","authors_text":"Banafsheh Ferdousi, James Edmond, Joachim Raeder, Maria Elena Innocenti, Matthew Argall","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-12-19T00:43:20Z","title":"Clustering of Global Magnetospheric Observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.12465","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":"sha256:01ddc3beeb191145d2f3a47c4ff4e16a4ffdf1b03b293d5eb24aeb4d78b5e52a","target":"record","created_at":"2026-07-05T07:26:21Z","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":"bf90b20aa3be62d88dc4edf00bb98f5263d944744f32d17da0b031cf54f4a2df","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2023-12-19T00:43:20Z","title_canon_sha256":"66080ae45a29f7cbe10f0bc509235e00b6e6eed1e60af67fe7d605b957b70171"},"schema_version":"1.0","source":{"id":"2312.12465","kind":"arxiv","version":1}},"canonical_sha256":"074f1feca993459ae24cbb7adc3091cca747d30a1dbd6e76377c5e1e216af9a2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"074f1feca993459ae24cbb7adc3091cca747d30a1dbd6e76377c5e1e216af9a2","first_computed_at":"2026-07-05T07:26:21.347489Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:26:21.347489Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ShrQz9giX1ajSy/NgB4mOB1u1xKwlWyuZaZ14wtPMU6/ea7L5BEFMCayWDTUiJuACIa9wSrV49olu20jfbyyDA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:26:21.347992Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.12465","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:01ddc3beeb191145d2f3a47c4ff4e16a4ffdf1b03b293d5eb24aeb4d78b5e52a","sha256:c1f30fda4ed0d5280324ae6d2dcc0ba8046dc68939bbae2d3a5784e8c98920e8"],"state_sha256":"bde505537083c132cb34c0c87886a5a09d0ba608a9cefc2e3739a27250bab1be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T6RyMylYK5Q18+vmkhfStR56ODopVUsFpjyElzhK361pZvPVZvNWKuCNuta6p92M1+IP148mWTazx6Ld3IzxBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T05:48:35.617273Z","bundle_sha256":"90e129550a7cb978c2a54b6b88e187b9dc50d81349ce5b42fa15d15cb96d2aca"}}