{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:D5MLA2H5U7MADQRN4TKF4D4VVE","short_pith_number":"pith:D5MLA2H5","schema_version":"1.0","canonical_sha256":"1f58b068fda7d801c22de4d45e0f95a916d879167494a754b26604053a43ac99","source":{"kind":"arxiv","id":"2407.18958","version":1},"attestation_state":"computed","paper":{"title":"Magnetic field of a linear octupole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ed-ph","authors_text":"A. Belendez, A.C. Marti, C. Stari, E. Arribas, I. Escobar, M. Monteiro, R. Ramirez-Vazquez","submitted_at":"2024-07-15T12:55:23Z","abstract_excerpt":"We measure the magnetic field produced by a linear octupole formed by four magnets placed in such a way that both their magnetic moments and their quadrupole moments cancel each other. The magnetic field is measured with the magnetic sensor of a smartphone together with a suitable app, using the Android operating system. The main objective is to determine the dependence of the x-component of the magnetic field with distance and compare with the theoretical result that tells us that this dependence is a quintic decrease."},"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":"2407.18958","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ed-ph","submitted_at":"2024-07-15T12:55:23Z","cross_cats_sorted":[],"title_canon_sha256":"5dea4598b4a4e33378591fecd72d7e312911ecc029653db4aeafb4b7ac87027d","abstract_canon_sha256":"53d38362f30e3c65a419353e3d6970b2a8295428ba54f59b34923dab32b894bd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:49:11.592415Z","signature_b64":"SXlv0J4Pkc1FuwDurDk3eFZOTKrdXoT7mBIgx0BXhm1Lqqf2Cx8IALJ9CwWGMDjHhA0+hpP9DDLbLXYfMvW3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f58b068fda7d801c22de4d45e0f95a916d879167494a754b26604053a43ac99","last_reissued_at":"2026-07-05T08:49:11.592007Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:49:11.592007Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Magnetic field of a linear octupole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ed-ph","authors_text":"A. Belendez, A.C. Marti, C. Stari, E. Arribas, I. Escobar, M. Monteiro, R. Ramirez-Vazquez","submitted_at":"2024-07-15T12:55:23Z","abstract_excerpt":"We measure the magnetic field produced by a linear octupole formed by four magnets placed in such a way that both their magnetic moments and their quadrupole moments cancel each other. The magnetic field is measured with the magnetic sensor of a smartphone together with a suitable app, using the Android operating system. The main objective is to determine the dependence of the x-component of the magnetic field with distance and compare with the theoretical result that tells us that this dependence is a quintic decrease."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.18958","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/2407.18958/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2407.18958","created_at":"2026-07-05T08:49:11.592073+00:00"},{"alias_kind":"arxiv_version","alias_value":"2407.18958v1","created_at":"2026-07-05T08:49:11.592073+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2407.18958","created_at":"2026-07-05T08:49:11.592073+00:00"},{"alias_kind":"pith_short_12","alias_value":"D5MLA2H5U7MA","created_at":"2026-07-05T08:49:11.592073+00:00"},{"alias_kind":"pith_short_16","alias_value":"D5MLA2H5U7MADQRN","created_at":"2026-07-05T08:49:11.592073+00:00"},{"alias_kind":"pith_short_8","alias_value":"D5MLA2H5","created_at":"2026-07-05T08:49:11.592073+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/D5MLA2H5U7MADQRN4TKF4D4VVE","json":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE.json","graph_json":"https://pith.science/api/pith-number/D5MLA2H5U7MADQRN4TKF4D4VVE/graph.json","events_json":"https://pith.science/api/pith-number/D5MLA2H5U7MADQRN4TKF4D4VVE/events.json","paper":"https://pith.science/paper/D5MLA2H5"},"agent_actions":{"view_html":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE","download_json":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE.json","view_paper":"https://pith.science/paper/D5MLA2H5","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2407.18958&json=true","fetch_graph":"https://pith.science/api/pith-number/D5MLA2H5U7MADQRN4TKF4D4VVE/graph.json","fetch_events":"https://pith.science/api/pith-number/D5MLA2H5U7MADQRN4TKF4D4VVE/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE/action/timestamp_anchor","attest_storage":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE/action/storage_attestation","attest_author":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE/action/author_attestation","sign_citation":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE/action/citation_signature","submit_replication":"https://pith.science/pith/D5MLA2H5U7MADQRN4TKF4D4VVE/action/replication_record"}},"created_at":"2026-07-05T08:49:11.592073+00:00","updated_at":"2026-07-05T08:49:11.592073+00:00"}