{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:RXX37W5V4HDL6JDDTQJXD4Z3O7","short_pith_number":"pith:RXX37W5V","canonical_record":{"source":{"id":"2507.03776","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2025-07-04T18:54:02Z","cross_cats_sorted":[],"title_canon_sha256":"5a9a5514d4026b7ccee47acf1b5bb460d156f0e843b27b67597e59dc3a2b89a7","abstract_canon_sha256":"5bf0e497f98465de9f70e4781fd17590b6894b49b6de7ad798d9048ca0a3d75a"},"schema_version":"1.0"},"canonical_sha256":"8defbfdbb5e1c6bf24639c1371f33b77fd38b6f4d8b17001c300f6ed329e09aa","source":{"kind":"arxiv","id":"2507.03776","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.03776","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"arxiv_version","alias_value":"2507.03776v1","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.03776","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"pith_short_12","alias_value":"RXX37W5V4HDL","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"pith_short_16","alias_value":"RXX37W5V4HDL6JDD","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"pith_short_8","alias_value":"RXX37W5V","created_at":"2026-07-05T11:32:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:RXX37W5V4HDL6JDDTQJXD4Z3O7","target":"record","payload":{"canonical_record":{"source":{"id":"2507.03776","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2025-07-04T18:54:02Z","cross_cats_sorted":[],"title_canon_sha256":"5a9a5514d4026b7ccee47acf1b5bb460d156f0e843b27b67597e59dc3a2b89a7","abstract_canon_sha256":"5bf0e497f98465de9f70e4781fd17590b6894b49b6de7ad798d9048ca0a3d75a"},"schema_version":"1.0"},"canonical_sha256":"8defbfdbb5e1c6bf24639c1371f33b77fd38b6f4d8b17001c300f6ed329e09aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:32:34.291817Z","signature_b64":"Xmkgr4UnHmfreHoAut0g0Aq4DA+fwtKSOgVNQgImIO6A7MoIP+eqrtWqGihWE673DzUMgGCFZaBft+62K7wxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8defbfdbb5e1c6bf24639c1371f33b77fd38b6f4d8b17001c300f6ed329e09aa","last_reissued_at":"2026-07-05T11:32:34.291256Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:32:34.291256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.03776","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":"2026-07-05T11:32:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pLzr4ra4C3Yfqj5qPo2LlvZRZO20zUmQMWGWl33dSC7XkUP0Hg4FE3k2SpERA87eM3hpWkW3caDQR2sXWb4uBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T21:45:03.867418Z"},"content_sha256":"5c90af65d9b974248b120751dbd4bb996f01bdd016cda13d3e2a4d202f3e7eaf","schema_version":"1.0","event_id":"sha256:5c90af65d9b974248b120751dbd4bb996f01bdd016cda13d3e2a4d202f3e7eaf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:RXX37W5V4HDL6JDDTQJXD4Z3O7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Data-Driven Approach to Model the Influence of Magnetic Geometry in the Confinement of Fusion Devices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"G. Abreu, R. Jorge, R. Laia","submitted_at":"2025-07-04T18:54:02Z","abstract_excerpt":"The design of fusion energy devices involves a balance between competing performance metrics to achieve an energy gain. In stellarators, the geometry is very flexible and involves a large number of free parameters. These can be optimized to achieve good performance. One of the main optimization targets is omnigenity, that is, the confinement of alpha particles stemming from the fusion reactions. In this work, two classes of omnigenous stellarators are studied, namely quasisymmetric and quasi-isodynamic stellarators. The goal is to determine the influence of the geometry on omnigenity, which ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.03776","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/2507.03776/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":"2026-07-05T11:32:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RTByPRLbt70GtEOR9mMkzsg8EXqA798wQ2Ul8SgX/DnsMwI/MEvVJ8kwjq0j0k7g6eTZhTjl6iNtVgOy3DAHAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T21:45:03.868459Z"},"content_sha256":"ba835f3ee50c545c060db06e1bc0eaf197cb0edb556b0d5768e444e4cda9635b","schema_version":"1.0","event_id":"sha256:ba835f3ee50c545c060db06e1bc0eaf197cb0edb556b0d5768e444e4cda9635b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7/bundle.json","state_url":"https://pith.science/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7/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":"2026-08-17T21:45:03Z","links":{"resolver":"https://pith.science/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7","bundle":"https://pith.science/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7/bundle.json","state":"https://pith.science/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RXX37W5V4HDL6JDDTQJXD4Z3O7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:RXX37W5V4HDL6JDDTQJXD4Z3O7","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":"5bf0e497f98465de9f70e4781fd17590b6894b49b6de7ad798d9048ca0a3d75a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2025-07-04T18:54:02Z","title_canon_sha256":"5a9a5514d4026b7ccee47acf1b5bb460d156f0e843b27b67597e59dc3a2b89a7"},"schema_version":"1.0","source":{"id":"2507.03776","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.03776","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"arxiv_version","alias_value":"2507.03776v1","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.03776","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"pith_short_12","alias_value":"RXX37W5V4HDL","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"pith_short_16","alias_value":"RXX37W5V4HDL6JDD","created_at":"2026-07-05T11:32:34Z"},{"alias_kind":"pith_short_8","alias_value":"RXX37W5V","created_at":"2026-07-05T11:32:34Z"}],"graph_snapshots":[{"event_id":"sha256:ba835f3ee50c545c060db06e1bc0eaf197cb0edb556b0d5768e444e4cda9635b","target":"graph","created_at":"2026-07-05T11:32:34Z","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/2507.03776/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The design of fusion energy devices involves a balance between competing performance metrics to achieve an energy gain. In stellarators, the geometry is very flexible and involves a large number of free parameters. These can be optimized to achieve good performance. One of the main optimization targets is omnigenity, that is, the confinement of alpha particles stemming from the fusion reactions. In this work, two classes of omnigenous stellarators are studied, namely quasisymmetric and quasi-isodynamic stellarators. The goal is to determine the influence of the geometry on omnigenity, which ca","authors_text":"G. Abreu, R. Jorge, R. Laia","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2025-07-04T18:54:02Z","title":"Data-Driven Approach to Model the Influence of Magnetic Geometry in the Confinement of Fusion Devices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.03776","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":"sha256:5c90af65d9b974248b120751dbd4bb996f01bdd016cda13d3e2a4d202f3e7eaf","target":"record","created_at":"2026-07-05T11:32:34Z","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":"5bf0e497f98465de9f70e4781fd17590b6894b49b6de7ad798d9048ca0a3d75a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2025-07-04T18:54:02Z","title_canon_sha256":"5a9a5514d4026b7ccee47acf1b5bb460d156f0e843b27b67597e59dc3a2b89a7"},"schema_version":"1.0","source":{"id":"2507.03776","kind":"arxiv","version":1}},"canonical_sha256":"8defbfdbb5e1c6bf24639c1371f33b77fd38b6f4d8b17001c300f6ed329e09aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8defbfdbb5e1c6bf24639c1371f33b77fd38b6f4d8b17001c300f6ed329e09aa","first_computed_at":"2026-07-05T11:32:34.291256Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:32:34.291256Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Xmkgr4UnHmfreHoAut0g0Aq4DA+fwtKSOgVNQgImIO6A7MoIP+eqrtWqGihWE673DzUMgGCFZaBft+62K7wxAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:32:34.291817Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.03776","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c90af65d9b974248b120751dbd4bb996f01bdd016cda13d3e2a4d202f3e7eaf","sha256:ba835f3ee50c545c060db06e1bc0eaf197cb0edb556b0d5768e444e4cda9635b"],"state_sha256":"1c7e1aa072a524963b37a8e6906fcc5dbc660ebe368c70b905e6cdfa268bbcd5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o4L4EgCy/U+h3CSRXV9hE8Wh9drb/whRp5tyr8mX63bz62dG+OqR6HYgMchIhdtiD0nfBoHlksNZgnMFHUnaCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T21:45:03.902086Z","bundle_sha256":"a7c068c45c5bf29ac4dbbe08563f7e9d2cb7c39067cbd617877a90f70cea3e78"}}