{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:U53XUEIUCV6BVMPEBXSJDMA3BJ","short_pith_number":"pith:U53XUEIU","schema_version":"1.0","canonical_sha256":"a7777a1114157c1ab1e40de491b01b0a6c4a40d5c9ef16b3afceb555b8c21f85","source":{"kind":"arxiv","id":"1703.08178","version":1},"attestation_state":"computed","paper":{"title":"On the estimation of the current density in space plasmas: multi versus single-point techniques","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"physics.space-ph","authors_text":"Antonio Reda, Francesco Malara, Francesco Valentini, Luca Sorriso-Valvo, Silvia Perri","submitted_at":"2017-03-23T14:13:05Z","abstract_excerpt":"Thanks to multi-spacecraft mission, it has recently been possible to directly estimate the current density in space plasmas, by using magnetic field time series from four satellites flying in a quasi perfect tetrahedron configuration. The technique developed, commonly called 'curlometer' permits a good estimation of the current density when the magnetic field time series vary linearly in space. This approximation is generally valid for small spacecraft separation. The recent space missions Cluster and Magnetospheric Multiscale (MMS) have provided high resolution measurements with inter-spacecr"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1703.08178","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2017-03-23T14:13:05Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"1fd87a52ab745bce137216c9776ea45d91829a9e521e995f4c74337afe490818","abstract_canon_sha256":"eb56d5196172934bfe2ea527bae4d8bdb2579aa7f82e737406d3d428dd6993a3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:51.263958Z","signature_b64":"G4D4RcAUi9wqC+b5LnPYQokeZweqOKk8Ujd3R2wLmaXZRX9/E5eGbF8spLaaGFcutM9DxC0p82l+L+k/BWaeBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a7777a1114157c1ab1e40de491b01b0a6c4a40d5c9ef16b3afceb555b8c21f85","last_reissued_at":"2026-05-18T00:43:51.263306Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:51.263306Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the estimation of the current density in space plasmas: multi versus single-point techniques","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"physics.space-ph","authors_text":"Antonio Reda, Francesco Malara, Francesco Valentini, Luca Sorriso-Valvo, Silvia Perri","submitted_at":"2017-03-23T14:13:05Z","abstract_excerpt":"Thanks to multi-spacecraft mission, it has recently been possible to directly estimate the current density in space plasmas, by using magnetic field time series from four satellites flying in a quasi perfect tetrahedron configuration. The technique developed, commonly called 'curlometer' permits a good estimation of the current density when the magnetic field time series vary linearly in space. This approximation is generally valid for small spacecraft separation. The recent space missions Cluster and Magnetospheric Multiscale (MMS) have provided high resolution measurements with inter-spacecr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.08178","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1703.08178","created_at":"2026-05-18T00:43:51.263423+00:00"},{"alias_kind":"arxiv_version","alias_value":"1703.08178v1","created_at":"2026-05-18T00:43:51.263423+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.08178","created_at":"2026-05-18T00:43:51.263423+00:00"},{"alias_kind":"pith_short_12","alias_value":"U53XUEIUCV6B","created_at":"2026-05-18T12:31:46.661854+00:00"},{"alias_kind":"pith_short_16","alias_value":"U53XUEIUCV6BVMPE","created_at":"2026-05-18T12:31:46.661854+00:00"},{"alias_kind":"pith_short_8","alias_value":"U53XUEIU","created_at":"2026-05-18T12:31:46.661854+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ","json":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ.json","graph_json":"https://pith.science/api/pith-number/U53XUEIUCV6BVMPEBXSJDMA3BJ/graph.json","events_json":"https://pith.science/api/pith-number/U53XUEIUCV6BVMPEBXSJDMA3BJ/events.json","paper":"https://pith.science/paper/U53XUEIU"},"agent_actions":{"view_html":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ","download_json":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ.json","view_paper":"https://pith.science/paper/U53XUEIU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1703.08178&json=true","fetch_graph":"https://pith.science/api/pith-number/U53XUEIUCV6BVMPEBXSJDMA3BJ/graph.json","fetch_events":"https://pith.science/api/pith-number/U53XUEIUCV6BVMPEBXSJDMA3BJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ/action/storage_attestation","attest_author":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ/action/author_attestation","sign_citation":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ/action/citation_signature","submit_replication":"https://pith.science/pith/U53XUEIUCV6BVMPEBXSJDMA3BJ/action/replication_record"}},"created_at":"2026-05-18T00:43:51.263423+00:00","updated_at":"2026-05-18T00:43:51.263423+00:00"}