{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:PFMW26OXP6S425MLJS6HMDBVHX","short_pith_number":"pith:PFMW26OX","canonical_record":{"source":{"id":"2109.01913","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.space-ph","submitted_at":"2021-09-04T18:09:30Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM","physics.comp-ph","physics.plasm-ph"],"title_canon_sha256":"5e0bfb01048a82b4e45b2b269652b852b8d26a18e540751a922f479870c427c3","abstract_canon_sha256":"803f36bdff076fa8379f6523d13ace2e5dcc7fd8736f54662511cfae7b020b7d"},"schema_version":"1.0"},"canonical_sha256":"79596d79d77fa5cd758b4cbc760c353dc5d387226c84f6ffaadb474b47b4ace3","source":{"kind":"arxiv","id":"2109.01913","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.01913","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"arxiv_version","alias_value":"2109.01913v1","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.01913","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"pith_short_12","alias_value":"PFMW26OXP6S4","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"pith_short_16","alias_value":"PFMW26OXP6S425ML","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"pith_short_8","alias_value":"PFMW26OX","created_at":"2026-07-05T03:15:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:PFMW26OXP6S425MLJS6HMDBVHX","target":"record","payload":{"canonical_record":{"source":{"id":"2109.01913","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.space-ph","submitted_at":"2021-09-04T18:09:30Z","cross_cats_sorted":["astro-ph.EP","astro-ph.IM","physics.comp-ph","physics.plasm-ph"],"title_canon_sha256":"5e0bfb01048a82b4e45b2b269652b852b8d26a18e540751a922f479870c427c3","abstract_canon_sha256":"803f36bdff076fa8379f6523d13ace2e5dcc7fd8736f54662511cfae7b020b7d"},"schema_version":"1.0"},"canonical_sha256":"79596d79d77fa5cd758b4cbc760c353dc5d387226c84f6ffaadb474b47b4ace3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:15:11.916076Z","signature_b64":"TQU2ZN79ySlG9n6uCbOs10gCgKj/7iR6HNEFohFaynq7gy7qTkqyLDmyxTAqfq/3BxjqbM3ga3y4qDrZSf7sCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79596d79d77fa5cd758b4cbc760c353dc5d387226c84f6ffaadb474b47b4ace3","last_reissued_at":"2026-07-05T03:15:11.915695Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:15:11.915695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.01913","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":"2026-07-05T03:15:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3BMGKMB4JpDAvAqdOCsatl8TZJkDebIkffqw8HRldsEXgADGfllfmwByZ63LU7Y4Q62PGDDFn57V7abm0fCpDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:54:36.637204Z"},"content_sha256":"cf14da3a09834853f0ba11b91e3e188884081b7d32b202bcb9d69e35649ab9e7","schema_version":"1.0","event_id":"sha256:cf14da3a09834853f0ba11b91e3e188884081b7d32b202bcb9d69e35649ab9e7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:PFMW26OXP6S425MLJS6HMDBVHX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Drift Orbit Bifurcations and Cross-field Transport in the Outer Radiation Belt: Global MHD and Integrated Test-Particle Simulations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP","astro-ph.IM","physics.comp-ph","physics.plasm-ph"],"primary_cat":"physics.space-ph","authors_text":"F. A. Staples, H. J. Allison, J. K. Tong, J. P. Chittenden, J. P. Eastwood, J. W. B. Eggington, L. Mejnertsen, M. O. Archer, N. P. Meredith, O. Allanson. E. J. Watt, R. B. Horne, R. T. Desai, S. A. Glauert","submitted_at":"2021-09-04T18:09:30Z","abstract_excerpt":"Energetic particle fluxes in the outer magnetosphere present a significant challenge to modelling efforts as they can vary by orders of magnitude in response to solar wind driving conditions. In this article, we demonstrate the ability to propagate test particles through global MHD simulations to a high level of precision and use this to map the cross-field radial transport associated with relativistic electrons undergoing drift orbit bifurcations (DOBs). The simulations predict DOBs primarily occur within an Earth radius of the magnetopause loss cone and appears significantly different for so"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.01913","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/2109.01913/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":"2026-07-05T03:15:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RPi55x/Mmeh/DLsn36N3CZsK5UD9S0rVSizYeF91CBdTWEHSPSkupjRi3nnY6qKfYdECyAhlL9+bWI4JsplRDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:54:36.638036Z"},"content_sha256":"55dcf597f1e95b37a8d2aa5024f14737daef1a95a78027173766118e6e4baa66","schema_version":"1.0","event_id":"sha256:55dcf597f1e95b37a8d2aa5024f14737daef1a95a78027173766118e6e4baa66"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PFMW26OXP6S425MLJS6HMDBVHX/bundle.json","state_url":"https://pith.science/pith/PFMW26OXP6S425MLJS6HMDBVHX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PFMW26OXP6S425MLJS6HMDBVHX/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":"2026-08-04T15:54:36Z","links":{"resolver":"https://pith.science/pith/PFMW26OXP6S425MLJS6HMDBVHX","bundle":"https://pith.science/pith/PFMW26OXP6S425MLJS6HMDBVHX/bundle.json","state":"https://pith.science/pith/PFMW26OXP6S425MLJS6HMDBVHX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PFMW26OXP6S425MLJS6HMDBVHX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:PFMW26OXP6S425MLJS6HMDBVHX","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":"803f36bdff076fa8379f6523d13ace2e5dcc7fd8736f54662511cfae7b020b7d","cross_cats_sorted":["astro-ph.EP","astro-ph.IM","physics.comp-ph","physics.plasm-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.space-ph","submitted_at":"2021-09-04T18:09:30Z","title_canon_sha256":"5e0bfb01048a82b4e45b2b269652b852b8d26a18e540751a922f479870c427c3"},"schema_version":"1.0","source":{"id":"2109.01913","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.01913","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"arxiv_version","alias_value":"2109.01913v1","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.01913","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"pith_short_12","alias_value":"PFMW26OXP6S4","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"pith_short_16","alias_value":"PFMW26OXP6S425ML","created_at":"2026-07-05T03:15:11Z"},{"alias_kind":"pith_short_8","alias_value":"PFMW26OX","created_at":"2026-07-05T03:15:11Z"}],"graph_snapshots":[{"event_id":"sha256:55dcf597f1e95b37a8d2aa5024f14737daef1a95a78027173766118e6e4baa66","target":"graph","created_at":"2026-07-05T03:15:11Z","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/2109.01913/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Energetic particle fluxes in the outer magnetosphere present a significant challenge to modelling efforts as they can vary by orders of magnitude in response to solar wind driving conditions. In this article, we demonstrate the ability to propagate test particles through global MHD simulations to a high level of precision and use this to map the cross-field radial transport associated with relativistic electrons undergoing drift orbit bifurcations (DOBs). The simulations predict DOBs primarily occur within an Earth radius of the magnetopause loss cone and appears significantly different for so","authors_text":"F. A. Staples, H. J. Allison, J. K. Tong, J. P. Chittenden, J. P. Eastwood, J. W. B. Eggington, L. Mejnertsen, M. O. Archer, N. P. Meredith, O. Allanson. E. J. Watt, R. B. Horne, R. T. Desai, S. A. Glauert","cross_cats":["astro-ph.EP","astro-ph.IM","physics.comp-ph","physics.plasm-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.space-ph","submitted_at":"2021-09-04T18:09:30Z","title":"Drift Orbit Bifurcations and Cross-field Transport in the Outer Radiation Belt: Global MHD and Integrated Test-Particle Simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.01913","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:cf14da3a09834853f0ba11b91e3e188884081b7d32b202bcb9d69e35649ab9e7","target":"record","created_at":"2026-07-05T03:15:11Z","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":"803f36bdff076fa8379f6523d13ace2e5dcc7fd8736f54662511cfae7b020b7d","cross_cats_sorted":["astro-ph.EP","astro-ph.IM","physics.comp-ph","physics.plasm-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.space-ph","submitted_at":"2021-09-04T18:09:30Z","title_canon_sha256":"5e0bfb01048a82b4e45b2b269652b852b8d26a18e540751a922f479870c427c3"},"schema_version":"1.0","source":{"id":"2109.01913","kind":"arxiv","version":1}},"canonical_sha256":"79596d79d77fa5cd758b4cbc760c353dc5d387226c84f6ffaadb474b47b4ace3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79596d79d77fa5cd758b4cbc760c353dc5d387226c84f6ffaadb474b47b4ace3","first_computed_at":"2026-07-05T03:15:11.915695Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:15:11.915695Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TQU2ZN79ySlG9n6uCbOs10gCgKj/7iR6HNEFohFaynq7gy7qTkqyLDmyxTAqfq/3BxjqbM3ga3y4qDrZSf7sCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:15:11.916076Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.01913","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cf14da3a09834853f0ba11b91e3e188884081b7d32b202bcb9d69e35649ab9e7","sha256:55dcf597f1e95b37a8d2aa5024f14737daef1a95a78027173766118e6e4baa66"],"state_sha256":"3ae7ed75e218d04a55ec230c1100b25f0289f40e8ddf5d8498b57f004da44362"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"L919jlTkeYE6igd8KQlMpbFcHMeCi2LxVbK17UwGC5egUH52X5oRYEh9b5usnkAwyTKufLJn3CZyt57jCYZeDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:54:36.645491Z","bundle_sha256":"39068cc1f4d2f46bd1cef9240208ca0b7f53b35e4ae20ef0e6a458faf1fd554e"}}