{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:PBD2URWV5SKW5FWPFHMFQKVA2V","short_pith_number":"pith:PBD2URWV","schema_version":"1.0","canonical_sha256":"7847aa46d5ec956e96cf29d8582aa0d54686cbe04472e80e1c59a262af42e68e","source":{"kind":"arxiv","id":"1809.02979","version":2},"attestation_state":"computed","paper":{"title":"Challenges in Open-air Microwave Quantum Communication and Sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Enrique Solano, Frank Deppe, Kirill G. Fedorov, Mikel Sanz","submitted_at":"2018-09-09T14:24:28Z","abstract_excerpt":"Quantum communication is a holy grail to achieve secure communication among a set of partners, since it is provably unbreakable by physical laws. Quantum sensing employs quantum entanglement as an extra resource to determine parameters by either using less resources or attaining a precision unachievable in classical protocols. A paradigmatic example is the quantum radar, which allows one to detect an object without being detected oneself, by making use of the additional asset provided by quantum entanglement to reduce the intensity of the signal. In the optical regime, impressive technological"},"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":"1809.02979","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-09-09T14:24:28Z","cross_cats_sorted":[],"title_canon_sha256":"a4eb2c1319ca7e91f8e073ca349e69d8b4a2f04df981bb0a8c61a100a524311a","abstract_canon_sha256":"29c78ec2cfc33dd09a1907d14401fbce23e7c86751e34c2ee27ad3cfc695c2c4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:57:31.373577Z","signature_b64":"STp0U4NpLV5DagKOLaWTzsRwp0ue3sSs9HmO65gSQF4n0DdUMDQT8fqF+VrA7TRjo9ZQTffXXpXBdxR9KyspDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7847aa46d5ec956e96cf29d8582aa0d54686cbe04472e80e1c59a262af42e68e","last_reissued_at":"2026-05-17T23:57:31.372953Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:57:31.372953Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Challenges in Open-air Microwave Quantum Communication and Sensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Enrique Solano, Frank Deppe, Kirill G. Fedorov, Mikel Sanz","submitted_at":"2018-09-09T14:24:28Z","abstract_excerpt":"Quantum communication is a holy grail to achieve secure communication among a set of partners, since it is provably unbreakable by physical laws. Quantum sensing employs quantum entanglement as an extra resource to determine parameters by either using less resources or attaining a precision unachievable in classical protocols. A paradigmatic example is the quantum radar, which allows one to detect an object without being detected oneself, by making use of the additional asset provided by quantum entanglement to reduce the intensity of the signal. In the optical regime, impressive technological"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.02979","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1809.02979","created_at":"2026-05-17T23:57:31.373041+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.02979v2","created_at":"2026-05-17T23:57:31.373041+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.02979","created_at":"2026-05-17T23:57:31.373041+00:00"},{"alias_kind":"pith_short_12","alias_value":"PBD2URWV5SKW","created_at":"2026-05-18T12:32:43.782077+00:00"},{"alias_kind":"pith_short_16","alias_value":"PBD2URWV5SKW5FWP","created_at":"2026-05-18T12:32:43.782077+00:00"},{"alias_kind":"pith_short_8","alias_value":"PBD2URWV","created_at":"2026-05-18T12:32:43.782077+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/PBD2URWV5SKW5FWPFHMFQKVA2V","json":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V.json","graph_json":"https://pith.science/api/pith-number/PBD2URWV5SKW5FWPFHMFQKVA2V/graph.json","events_json":"https://pith.science/api/pith-number/PBD2URWV5SKW5FWPFHMFQKVA2V/events.json","paper":"https://pith.science/paper/PBD2URWV"},"agent_actions":{"view_html":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V","download_json":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V.json","view_paper":"https://pith.science/paper/PBD2URWV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.02979&json=true","fetch_graph":"https://pith.science/api/pith-number/PBD2URWV5SKW5FWPFHMFQKVA2V/graph.json","fetch_events":"https://pith.science/api/pith-number/PBD2URWV5SKW5FWPFHMFQKVA2V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V/action/storage_attestation","attest_author":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V/action/author_attestation","sign_citation":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V/action/citation_signature","submit_replication":"https://pith.science/pith/PBD2URWV5SKW5FWPFHMFQKVA2V/action/replication_record"}},"created_at":"2026-05-17T23:57:31.373041+00:00","updated_at":"2026-05-17T23:57:31.373041+00:00"}