{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:4QKIYOLW2ZARUN2K345OFMRI7X","short_pith_number":"pith:4QKIYOLW","canonical_record":{"source":{"id":"2606.09771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-08T17:31:50Z","cross_cats_sorted":["physics.app-ph","physics.comp-ph"],"title_canon_sha256":"f3fcc07357909d4078efeea9ed627650328e6118355d3ea8201b5686fd62e8f4","abstract_canon_sha256":"aab330ee0b856068292595035296900f16052ec82a8ab43b6aaabb5d7b3efce6"},"schema_version":"1.0"},"canonical_sha256":"e4148c3976d6411a374adf3ae2b228fdd018b1e6f7617a329587be03278ac3b5","source":{"kind":"arxiv","id":"2606.09771","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.09771","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.09771v1","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.09771","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"pith_short_12","alias_value":"4QKIYOLW2ZAR","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"pith_short_16","alias_value":"4QKIYOLW2ZARUN2K","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"pith_short_8","alias_value":"4QKIYOLW","created_at":"2026-06-09T02:09:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:4QKIYOLW2ZARUN2K345OFMRI7X","target":"record","payload":{"canonical_record":{"source":{"id":"2606.09771","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-08T17:31:50Z","cross_cats_sorted":["physics.app-ph","physics.comp-ph"],"title_canon_sha256":"f3fcc07357909d4078efeea9ed627650328e6118355d3ea8201b5686fd62e8f4","abstract_canon_sha256":"aab330ee0b856068292595035296900f16052ec82a8ab43b6aaabb5d7b3efce6"},"schema_version":"1.0"},"canonical_sha256":"e4148c3976d6411a374adf3ae2b228fdd018b1e6f7617a329587be03278ac3b5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-09T02:09:08.823045Z","signature_b64":"hbCOdPN9W3HDmOkfE7EG4e3FV5g+kzUFKJjHGWN6OcLn8yaUjoEBhpaD+s2vQxNnMXRV/QQ3YpzZcxL9uHAsBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e4148c3976d6411a374adf3ae2b228fdd018b1e6f7617a329587be03278ac3b5","last_reissued_at":"2026-06-09T02:09:08.822214Z","signature_status":"signed_v1","first_computed_at":"2026-06-09T02:09:08.822214Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.09771","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":"2026-06-09T02:09:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"repeuYzuHJ9rT0IOeVhp0E217ZOEh07ZF73fqMEg9wQC5nY0gP39aCkBSzo7trUkm8hK7E85nYcfqPDNTn8LDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:07:08.247062Z"},"content_sha256":"e814547f99a907223f8cb9b1cb0d8eca8d01f846f8a50a9ab485f05a4c4ced71","schema_version":"1.0","event_id":"sha256:e814547f99a907223f8cb9b1cb0d8eca8d01f846f8a50a9ab485f05a4c4ced71"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:4QKIYOLW2ZARUN2K345OFMRI7X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fully-implicit Particle-in-Cell model of a Magnetic Nozzle with electromagnetic power deposition","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph","physics.comp-ph"],"primary_cat":"physics.plasm-ph","authors_text":"Juan Mart\\'in-Hern\\'andez, Luis Chac\\'on, Mario Merino, Pedro Jim\\'enez-Jim\\'enez","submitted_at":"2026-06-08T17:31:50Z","abstract_excerpt":"A fraction of the electromagnetic power used to generate and heat the plasma in helicon sources and electrodeless plasma thrusters can leak into the outer expansion region, interacting with the plasma in the magnetic nozzle and affecting the performance of the device. This work analyzes the properties of the plasma in a convergent-divergent magnetic nozzle when right-hand polarized waves of varying amplitude propagate into it. This is accomplished with a 1D3V fully-implicit, Vlasov-Darwin particle-in-cell model of the collisionless ion and electron plasma in a magnetic tube. The code exactly c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.09771","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/2606.09771/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":"2026-06-09T02:09:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jOR5xxwxcSpmawXxrlg3HrMYOQwli+VmgVgOJ01tKexEP3F4WRVL8GZDuFv7So/BYGiZU5LXc+dp2/CfMo1hAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T13:07:08.247452Z"},"content_sha256":"a990ebbb4649ba4bffea18d54de689c8c42ef0b1b0a706ba306889e145a27dfa","schema_version":"1.0","event_id":"sha256:a990ebbb4649ba4bffea18d54de689c8c42ef0b1b0a706ba306889e145a27dfa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4QKIYOLW2ZARUN2K345OFMRI7X/bundle.json","state_url":"https://pith.science/pith/4QKIYOLW2ZARUN2K345OFMRI7X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4QKIYOLW2ZARUN2K345OFMRI7X/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":"2026-06-29T13:07:08Z","links":{"resolver":"https://pith.science/pith/4QKIYOLW2ZARUN2K345OFMRI7X","bundle":"https://pith.science/pith/4QKIYOLW2ZARUN2K345OFMRI7X/bundle.json","state":"https://pith.science/pith/4QKIYOLW2ZARUN2K345OFMRI7X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4QKIYOLW2ZARUN2K345OFMRI7X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:4QKIYOLW2ZARUN2K345OFMRI7X","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":"aab330ee0b856068292595035296900f16052ec82a8ab43b6aaabb5d7b3efce6","cross_cats_sorted":["physics.app-ph","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-08T17:31:50Z","title_canon_sha256":"f3fcc07357909d4078efeea9ed627650328e6118355d3ea8201b5686fd62e8f4"},"schema_version":"1.0","source":{"id":"2606.09771","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.09771","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.09771v1","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.09771","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"pith_short_12","alias_value":"4QKIYOLW2ZAR","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"pith_short_16","alias_value":"4QKIYOLW2ZARUN2K","created_at":"2026-06-09T02:09:08Z"},{"alias_kind":"pith_short_8","alias_value":"4QKIYOLW","created_at":"2026-06-09T02:09:08Z"}],"graph_snapshots":[{"event_id":"sha256:a990ebbb4649ba4bffea18d54de689c8c42ef0b1b0a706ba306889e145a27dfa","target":"graph","created_at":"2026-06-09T02:09:08Z","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/2606.09771/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A fraction of the electromagnetic power used to generate and heat the plasma in helicon sources and electrodeless plasma thrusters can leak into the outer expansion region, interacting with the plasma in the magnetic nozzle and affecting the performance of the device. This work analyzes the properties of the plasma in a convergent-divergent magnetic nozzle when right-hand polarized waves of varying amplitude propagate into it. This is accomplished with a 1D3V fully-implicit, Vlasov-Darwin particle-in-cell model of the collisionless ion and electron plasma in a magnetic tube. The code exactly c","authors_text":"Juan Mart\\'in-Hern\\'andez, Luis Chac\\'on, Mario Merino, Pedro Jim\\'enez-Jim\\'enez","cross_cats":["physics.app-ph","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-08T17:31:50Z","title":"Fully-implicit Particle-in-Cell model of a Magnetic Nozzle with electromagnetic power deposition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.09771","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:e814547f99a907223f8cb9b1cb0d8eca8d01f846f8a50a9ab485f05a4c4ced71","target":"record","created_at":"2026-06-09T02:09:08Z","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":"aab330ee0b856068292595035296900f16052ec82a8ab43b6aaabb5d7b3efce6","cross_cats_sorted":["physics.app-ph","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2026-06-08T17:31:50Z","title_canon_sha256":"f3fcc07357909d4078efeea9ed627650328e6118355d3ea8201b5686fd62e8f4"},"schema_version":"1.0","source":{"id":"2606.09771","kind":"arxiv","version":1}},"canonical_sha256":"e4148c3976d6411a374adf3ae2b228fdd018b1e6f7617a329587be03278ac3b5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e4148c3976d6411a374adf3ae2b228fdd018b1e6f7617a329587be03278ac3b5","first_computed_at":"2026-06-09T02:09:08.822214Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-09T02:09:08.822214Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hbCOdPN9W3HDmOkfE7EG4e3FV5g+kzUFKJjHGWN6OcLn8yaUjoEBhpaD+s2vQxNnMXRV/QQ3YpzZcxL9uHAsBw==","signature_status":"signed_v1","signed_at":"2026-06-09T02:09:08.823045Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.09771","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e814547f99a907223f8cb9b1cb0d8eca8d01f846f8a50a9ab485f05a4c4ced71","sha256:a990ebbb4649ba4bffea18d54de689c8c42ef0b1b0a706ba306889e145a27dfa"],"state_sha256":"4753e96883dce280286ae8952a109a3bcb7923ef0cabebc1a9405cf5605c0a7b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B8iLAw1QwrK+yriSGHm8DlAJIBufFwgUTlrTeWeh+cICik+Xtw9KefzbBEbq2i+V+FU2ABQgl7RsLmUkjj/fBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T13:07:08.249408Z","bundle_sha256":"fb2da625f7cf7dcb703ebdec345934330fdbd8018c0cfe780d45fa62fdfd4235"}}