{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:7DTSJLPDW46PL6Y4NQ6S2RKQ7R","short_pith_number":"pith:7DTSJLPD","canonical_record":{"source":{"id":"2301.07080","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2023-01-17T18:46:48Z","cross_cats_sorted":[],"title_canon_sha256":"d4ca30f45221ed049076bc2d468d3753e2ad8951b8e4e472fb8775b17a94179a","abstract_canon_sha256":"1600478e60165b5f2b7db94166c74a71f526d6637c0ec0056d5572b979604e26"},"schema_version":"1.0"},"canonical_sha256":"f8e724ade3b73cf5fb1c6c3d2d4550fc46f2908ad31fd4e806a541942005b128","source":{"kind":"arxiv","id":"2301.07080","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.07080","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"arxiv_version","alias_value":"2301.07080v2","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.07080","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"pith_short_12","alias_value":"7DTSJLPDW46P","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"pith_short_16","alias_value":"7DTSJLPDW46PL6Y4","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"pith_short_8","alias_value":"7DTSJLPD","created_at":"2026-07-05T06:02:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:7DTSJLPDW46PL6Y4NQ6S2RKQ7R","target":"record","payload":{"canonical_record":{"source":{"id":"2301.07080","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2023-01-17T18:46:48Z","cross_cats_sorted":[],"title_canon_sha256":"d4ca30f45221ed049076bc2d468d3753e2ad8951b8e4e472fb8775b17a94179a","abstract_canon_sha256":"1600478e60165b5f2b7db94166c74a71f526d6637c0ec0056d5572b979604e26"},"schema_version":"1.0"},"canonical_sha256":"f8e724ade3b73cf5fb1c6c3d2d4550fc46f2908ad31fd4e806a541942005b128","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:02:32.027467Z","signature_b64":"JH8zxq8g4+HYzTw4g/LZhkQsiDGWtO4v24/LGiyOrZgpYrkYwMprqb64LJWaTfbJ3xlWoG3SPX0AaYxXIAj0Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f8e724ade3b73cf5fb1c6c3d2d4550fc46f2908ad31fd4e806a541942005b128","last_reissued_at":"2026-07-05T06:02:32.027019Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:02:32.027019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.07080","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T06:02:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"smEczD/1a0vBINKQ3xVZeURywkg8lOf9OfmJ+uZrXYMMGpIgur8YFIoMJAOblYSdUSkOp+rbzj2vhw9VFpYBDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:16:02.780437Z"},"content_sha256":"c4a12f2f1dc66e365615e212c4fc045bb564c82ce24e88f59608b1185f18eeb3","schema_version":"1.0","event_id":"sha256:c4a12f2f1dc66e365615e212c4fc045bb564c82ce24e88f59608b1185f18eeb3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:7DTSJLPDW46PL6Y4NQ6S2RKQ7R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neoclassical transport in strong gradient regions of large aspect ratio tokamaks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Felix I. Parra, Iv\\'an Calvo, Matt Landreman, Peter J. Catto, Silvia Trinczek","submitted_at":"2023-01-17T18:46:48Z","abstract_excerpt":"We present a new neoclassical transport model for large aspect ratio tokamaks where the gradient scale lengths are of the size of the poloidal gyroradius. Previous work on neoclassical transport across transport barriers assumed large density and potential gradients but a small temperature gradient, or neglected the gradient of the mean parallel flow. Using large aspect ratio and low collisionality expansions, we relax these restrictive assumptions. We define a new set of variables based on conserved quantities, which simplifies the drift kinetic equation whilst keeping strong gradients, and d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.07080","kind":"arxiv","version":2},"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/2301.07080/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":"2026-07-05T06:02:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ryCs2DUKtQj/j+YZhXYy9IkaFFr/AKo54aMzP93qCetmrwysGgbZWuinvTOC44Zk8dHgpMWzLnvVZNFedXzbCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T06:16:02.783362Z"},"content_sha256":"d45e9de70cf302e53b02cf6cbac4300751aa6c4f59239bafd8b0869a5c43281e","schema_version":"1.0","event_id":"sha256:d45e9de70cf302e53b02cf6cbac4300751aa6c4f59239bafd8b0869a5c43281e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R/bundle.json","state_url":"https://pith.science/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R/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":"2026-08-07T06:16:02Z","links":{"resolver":"https://pith.science/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R","bundle":"https://pith.science/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R/bundle.json","state":"https://pith.science/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7DTSJLPDW46PL6Y4NQ6S2RKQ7R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:7DTSJLPDW46PL6Y4NQ6S2RKQ7R","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":"1600478e60165b5f2b7db94166c74a71f526d6637c0ec0056d5572b979604e26","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2023-01-17T18:46:48Z","title_canon_sha256":"d4ca30f45221ed049076bc2d468d3753e2ad8951b8e4e472fb8775b17a94179a"},"schema_version":"1.0","source":{"id":"2301.07080","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.07080","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"arxiv_version","alias_value":"2301.07080v2","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.07080","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"pith_short_12","alias_value":"7DTSJLPDW46P","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"pith_short_16","alias_value":"7DTSJLPDW46PL6Y4","created_at":"2026-07-05T06:02:32Z"},{"alias_kind":"pith_short_8","alias_value":"7DTSJLPD","created_at":"2026-07-05T06:02:32Z"}],"graph_snapshots":[{"event_id":"sha256:d45e9de70cf302e53b02cf6cbac4300751aa6c4f59239bafd8b0869a5c43281e","target":"graph","created_at":"2026-07-05T06:02:32Z","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/2301.07080/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a new neoclassical transport model for large aspect ratio tokamaks where the gradient scale lengths are of the size of the poloidal gyroradius. Previous work on neoclassical transport across transport barriers assumed large density and potential gradients but a small temperature gradient, or neglected the gradient of the mean parallel flow. Using large aspect ratio and low collisionality expansions, we relax these restrictive assumptions. We define a new set of variables based on conserved quantities, which simplifies the drift kinetic equation whilst keeping strong gradients, and d","authors_text":"Felix I. Parra, Iv\\'an Calvo, Matt Landreman, Peter J. Catto, Silvia Trinczek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2023-01-17T18:46:48Z","title":"Neoclassical transport in strong gradient regions of large aspect ratio tokamaks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.07080","kind":"arxiv","version":2},"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:c4a12f2f1dc66e365615e212c4fc045bb564c82ce24e88f59608b1185f18eeb3","target":"record","created_at":"2026-07-05T06:02:32Z","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":"1600478e60165b5f2b7db94166c74a71f526d6637c0ec0056d5572b979604e26","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2023-01-17T18:46:48Z","title_canon_sha256":"d4ca30f45221ed049076bc2d468d3753e2ad8951b8e4e472fb8775b17a94179a"},"schema_version":"1.0","source":{"id":"2301.07080","kind":"arxiv","version":2}},"canonical_sha256":"f8e724ade3b73cf5fb1c6c3d2d4550fc46f2908ad31fd4e806a541942005b128","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f8e724ade3b73cf5fb1c6c3d2d4550fc46f2908ad31fd4e806a541942005b128","first_computed_at":"2026-07-05T06:02:32.027019Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:02:32.027019Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JH8zxq8g4+HYzTw4g/LZhkQsiDGWtO4v24/LGiyOrZgpYrkYwMprqb64LJWaTfbJ3xlWoG3SPX0AaYxXIAj0Cw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:02:32.027467Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.07080","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4a12f2f1dc66e365615e212c4fc045bb564c82ce24e88f59608b1185f18eeb3","sha256:d45e9de70cf302e53b02cf6cbac4300751aa6c4f59239bafd8b0869a5c43281e"],"state_sha256":"a72d55c692a784fc0d3ac5ebcc7120829f977d32cbd4d70f1ad2d70d1345eb68"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jwtLQmjC2GOB36zxDGlmJNNvrUg08jiWHyqMtguJsGboIWTMIloLplpHRzC7CPiXt8/c9xy9TIN4n6/iADWhCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T06:16:02.791569Z","bundle_sha256":"0cd17c89e0d32691daf216efc78afc7ecb99a7e02839209cdef1a56934306d4b"}}