{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ABPRKNXIII763WAN2MAEUF7VMU","short_pith_number":"pith:ABPRKNXI","canonical_record":{"source":{"id":"1710.03536","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-10-10T12:32:48Z","cross_cats_sorted":[],"title_canon_sha256":"01b9c0e6082310ae5662ed001448b67f67b63fe74e4d7eeb97b633c96dac93c9","abstract_canon_sha256":"d90f75d2eff82dc9c98c760016d4a69d963630d47434769b6481adff615d59ab"},"schema_version":"1.0"},"canonical_sha256":"005f1536e8423fedd80dd3004a17f56533f566a8c12169bbbf2b8d85595ee1d0","source":{"kind":"arxiv","id":"1710.03536","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.03536","created_at":"2026-05-18T00:16:23Z"},{"alias_kind":"arxiv_version","alias_value":"1710.03536v2","created_at":"2026-05-18T00:16:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03536","created_at":"2026-05-18T00:16:23Z"},{"alias_kind":"pith_short_12","alias_value":"ABPRKNXIII76","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"ABPRKNXIII763WAN","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"ABPRKNXI","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ABPRKNXIII763WAN2MAEUF7VMU","target":"record","payload":{"canonical_record":{"source":{"id":"1710.03536","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-10-10T12:32:48Z","cross_cats_sorted":[],"title_canon_sha256":"01b9c0e6082310ae5662ed001448b67f67b63fe74e4d7eeb97b633c96dac93c9","abstract_canon_sha256":"d90f75d2eff82dc9c98c760016d4a69d963630d47434769b6481adff615d59ab"},"schema_version":"1.0"},"canonical_sha256":"005f1536e8423fedd80dd3004a17f56533f566a8c12169bbbf2b8d85595ee1d0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:16:23.567808Z","signature_b64":"IG93VEQk6p1mIGXGnMsHtNzVEe+T1RhHmMzX8OekTIwzXA1YIj+7UTpOXUMY6Swa4BbaVrwyTaTVQbpz/yh4Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"005f1536e8423fedd80dd3004a17f56533f566a8c12169bbbf2b8d85595ee1d0","last_reissued_at":"2026-05-18T00:16:23.567234Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:16:23.567234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.03536","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":"2026-05-18T00:16:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+T/F9OXRgFEkhu8JMnHwy/UziThXxZvJDKiB4vj1cfGOqyhxUF0JHmDNq7G0dbothpC1gBn1UFKoOOcfBi2yAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T00:44:37.189725Z"},"content_sha256":"cc4d7d2e01c7c771733dcbf0a9980826d4f33659b8621ecf1d208615983cafa7","schema_version":"1.0","event_id":"sha256:cc4d7d2e01c7c771733dcbf0a9980826d4f33659b8621ecf1d208615983cafa7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ABPRKNXIII763WAN2MAEUF7VMU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron positron pair flow and current composition in the pulsar magnetosphere","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Alice Harding, Andrey Timokhin, Constantinos Kalapotharakos, Demosthenes Kazanas, Gabriele Brambilla","submitted_at":"2017-10-10T12:32:48Z","abstract_excerpt":"We performed ab-initio Particle-In-Cell (PIC) simulations of a pulsar magnetosphere with electron-positron plasma produced only in the regions close to the neutron star surface. We study how the magnetosphere transitions from the vacuum to a nearly force-free configuration. We compare the resulting force-free like configuration with ones obtained in a PIC simulation where particles are injected everywhere as well as with macroscopic force-free simulations. We found that although both PIC solutions have similar structure of electromagnetic fields and current density distributions, they have dif"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03536","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":""},"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":"2026-05-18T00:16:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tKa5G49otSZrc1WO5ghKJxbwBGQr8UVvx7G/ePmyJ8D7BJVvV8IaaF0zMi1oppAV7SxarvG/LQFF1LK4sAcFDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-20T00:44:37.190114Z"},"content_sha256":"97199335b5972875dbae1ef41598283dfdcac075d2c6576ad83d4cad7911e672","schema_version":"1.0","event_id":"sha256:97199335b5972875dbae1ef41598283dfdcac075d2c6576ad83d4cad7911e672"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ABPRKNXIII763WAN2MAEUF7VMU/bundle.json","state_url":"https://pith.science/pith/ABPRKNXIII763WAN2MAEUF7VMU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ABPRKNXIII763WAN2MAEUF7VMU/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":"2026-05-20T00:44:37Z","links":{"resolver":"https://pith.science/pith/ABPRKNXIII763WAN2MAEUF7VMU","bundle":"https://pith.science/pith/ABPRKNXIII763WAN2MAEUF7VMU/bundle.json","state":"https://pith.science/pith/ABPRKNXIII763WAN2MAEUF7VMU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ABPRKNXIII763WAN2MAEUF7VMU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ABPRKNXIII763WAN2MAEUF7VMU","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":"d90f75d2eff82dc9c98c760016d4a69d963630d47434769b6481adff615d59ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-10-10T12:32:48Z","title_canon_sha256":"01b9c0e6082310ae5662ed001448b67f67b63fe74e4d7eeb97b633c96dac93c9"},"schema_version":"1.0","source":{"id":"1710.03536","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.03536","created_at":"2026-05-18T00:16:23Z"},{"alias_kind":"arxiv_version","alias_value":"1710.03536v2","created_at":"2026-05-18T00:16:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.03536","created_at":"2026-05-18T00:16:23Z"},{"alias_kind":"pith_short_12","alias_value":"ABPRKNXIII76","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"ABPRKNXIII763WAN","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"ABPRKNXI","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:97199335b5972875dbae1ef41598283dfdcac075d2c6576ad83d4cad7911e672","target":"graph","created_at":"2026-05-18T00:16:23Z","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"},"paper":{"abstract_excerpt":"We performed ab-initio Particle-In-Cell (PIC) simulations of a pulsar magnetosphere with electron-positron plasma produced only in the regions close to the neutron star surface. We study how the magnetosphere transitions from the vacuum to a nearly force-free configuration. We compare the resulting force-free like configuration with ones obtained in a PIC simulation where particles are injected everywhere as well as with macroscopic force-free simulations. We found that although both PIC solutions have similar structure of electromagnetic fields and current density distributions, they have dif","authors_text":"Alice Harding, Andrey Timokhin, Constantinos Kalapotharakos, Demosthenes Kazanas, Gabriele Brambilla","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-10-10T12:32:48Z","title":"Electron positron pair flow and current composition in the pulsar magnetosphere"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.03536","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:cc4d7d2e01c7c771733dcbf0a9980826d4f33659b8621ecf1d208615983cafa7","target":"record","created_at":"2026-05-18T00:16:23Z","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":"d90f75d2eff82dc9c98c760016d4a69d963630d47434769b6481adff615d59ab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-10-10T12:32:48Z","title_canon_sha256":"01b9c0e6082310ae5662ed001448b67f67b63fe74e4d7eeb97b633c96dac93c9"},"schema_version":"1.0","source":{"id":"1710.03536","kind":"arxiv","version":2}},"canonical_sha256":"005f1536e8423fedd80dd3004a17f56533f566a8c12169bbbf2b8d85595ee1d0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"005f1536e8423fedd80dd3004a17f56533f566a8c12169bbbf2b8d85595ee1d0","first_computed_at":"2026-05-18T00:16:23.567234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:23.567234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IG93VEQk6p1mIGXGnMsHtNzVEe+T1RhHmMzX8OekTIwzXA1YIj+7UTpOXUMY6Swa4BbaVrwyTaTVQbpz/yh4Bg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:23.567808Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.03536","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cc4d7d2e01c7c771733dcbf0a9980826d4f33659b8621ecf1d208615983cafa7","sha256:97199335b5972875dbae1ef41598283dfdcac075d2c6576ad83d4cad7911e672"],"state_sha256":"c9efc3e8324d383e966980ef800a65c8026b520fb7cd19b0714d9e7ee5cc9694"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z/TWCVoilo7YYO8A5lhYNRCZ3iczTd2V6frsA9uhG7J2XglzseFmjTykiAeDZPzD6QjRRfa4OLSsHmoOXYbAAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-20T00:44:37.193378Z","bundle_sha256":"51db118936ff57f8ab78aa9b3b59f6d9aaf9d01a7b87281b4f82e3117c1ab082"}}