{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:MO4UDLOKGOGAQKARTK2Y4ROVD3","short_pith_number":"pith:MO4UDLOK","schema_version":"1.0","canonical_sha256":"63b941adca338c0828119ab58e45d51ede961f37bfbab3cef317fd2a37cbc2df","source":{"kind":"arxiv","id":"1410.4268","version":3},"attestation_state":"computed","paper":{"title":"The physics of angular momentum radio","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"physics.optics","authors_text":"B. Thid\\'e, C. G. Someda, F. Tamburini, H. Then, R. A. Ravanelli","submitted_at":"2014-10-16T01:27:18Z","abstract_excerpt":"Wireless communications, radio astronomy and other radio science applications are predominantly implemented with techniques built on top of the electromagnetic linear momentum (Poynting vector) physical layer. As a supplement and/or alternative to this conventional approach, techniques rooted in the electromagnetic angular momentum physical layer have been advocated, and promising results from proof-of-concept radio communication experiments using angular momentum were recently published. This sparingly exploited physical observable describes the rotational (spinning and orbiting) physical pro"},"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":"1410.4268","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-10-16T01:27:18Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"e3db1a025f0bade3b9b09bc725d0472fb17099632da752b6a19435bfcca2a9c2","abstract_canon_sha256":"9c74659836cf2e77337e91dd24cf0e398a6a8dc4fffb8c959ccba671f4cd613f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:02.534530Z","signature_b64":"HHaUZhiBSqIBU2nsrqry0xDpvmBJbodFdFsRRKxBO86GDTDRs+oCdan03WpMrpRHz+K7kjw+7ymiEb5y69xxCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"63b941adca338c0828119ab58e45d51ede961f37bfbab3cef317fd2a37cbc2df","last_reissued_at":"2026-05-18T02:00:02.534037Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:02.534037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The physics of angular momentum radio","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"physics.optics","authors_text":"B. Thid\\'e, C. G. Someda, F. Tamburini, H. Then, R. A. Ravanelli","submitted_at":"2014-10-16T01:27:18Z","abstract_excerpt":"Wireless communications, radio astronomy and other radio science applications are predominantly implemented with techniques built on top of the electromagnetic linear momentum (Poynting vector) physical layer. As a supplement and/or alternative to this conventional approach, techniques rooted in the electromagnetic angular momentum physical layer have been advocated, and promising results from proof-of-concept radio communication experiments using angular momentum were recently published. This sparingly exploited physical observable describes the rotational (spinning and orbiting) physical pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.4268","kind":"arxiv","version":3},"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":"1410.4268","created_at":"2026-05-18T02:00:02.534113+00:00"},{"alias_kind":"arxiv_version","alias_value":"1410.4268v3","created_at":"2026-05-18T02:00:02.534113+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.4268","created_at":"2026-05-18T02:00:02.534113+00:00"},{"alias_kind":"pith_short_12","alias_value":"MO4UDLOKGOGA","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_16","alias_value":"MO4UDLOKGOGAQKAR","created_at":"2026-05-18T12:28:38.356838+00:00"},{"alias_kind":"pith_short_8","alias_value":"MO4UDLOK","created_at":"2026-05-18T12:28:38.356838+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/MO4UDLOKGOGAQKARTK2Y4ROVD3","json":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3.json","graph_json":"https://pith.science/api/pith-number/MO4UDLOKGOGAQKARTK2Y4ROVD3/graph.json","events_json":"https://pith.science/api/pith-number/MO4UDLOKGOGAQKARTK2Y4ROVD3/events.json","paper":"https://pith.science/paper/MO4UDLOK"},"agent_actions":{"view_html":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3","download_json":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3.json","view_paper":"https://pith.science/paper/MO4UDLOK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1410.4268&json=true","fetch_graph":"https://pith.science/api/pith-number/MO4UDLOKGOGAQKARTK2Y4ROVD3/graph.json","fetch_events":"https://pith.science/api/pith-number/MO4UDLOKGOGAQKARTK2Y4ROVD3/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3/action/storage_attestation","attest_author":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3/action/author_attestation","sign_citation":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3/action/citation_signature","submit_replication":"https://pith.science/pith/MO4UDLOKGOGAQKARTK2Y4ROVD3/action/replication_record"}},"created_at":"2026-05-18T02:00:02.534113+00:00","updated_at":"2026-05-18T02:00:02.534113+00:00"}