{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SUHW7H5XHITMUOGLWLIQDWLQYR","short_pith_number":"pith:SUHW7H5X","canonical_record":{"source":{"id":"1401.3810","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-16T02:04:25Z","cross_cats_sorted":[],"title_canon_sha256":"82164df0fc646ffe59f8c30d6c0e8e8ad449daedb1cfc97184775c25aab26f30","abstract_canon_sha256":"81a08e21799826b878002d94e841404a18fcc492b605ebff75912aacfcaca734"},"schema_version":"1.0"},"canonical_sha256":"950f6f9fb73a26ca38cbb2d101d970c44a497c60268cebb63ba93e1e8f2b93ab","source":{"kind":"arxiv","id":"1401.3810","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.3810","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"1401.3810v1","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.3810","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"SUHW7H5XHITM","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SUHW7H5XHITMUOGL","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SUHW7H5X","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SUHW7H5XHITMUOGLWLIQDWLQYR","target":"record","payload":{"canonical_record":{"source":{"id":"1401.3810","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-16T02:04:25Z","cross_cats_sorted":[],"title_canon_sha256":"82164df0fc646ffe59f8c30d6c0e8e8ad449daedb1cfc97184775c25aab26f30","abstract_canon_sha256":"81a08e21799826b878002d94e841404a18fcc492b605ebff75912aacfcaca734"},"schema_version":"1.0"},"canonical_sha256":"950f6f9fb73a26ca38cbb2d101d970c44a497c60268cebb63ba93e1e8f2b93ab","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:25.051569Z","signature_b64":"fEBPrvpEoyjaruAt5BnEbkF04UZyncs75wU+aDpoeMVYbc2piue/xzWwUDWBBTKxaBFREOAcvFgl5l2DKENhBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"950f6f9fb73a26ca38cbb2d101d970c44a497c60268cebb63ba93e1e8f2b93ab","last_reissued_at":"2026-05-18T01:45:25.051023Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:25.051023Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.3810","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0ouR7bmZuraBj21te90gCHEa5aRSRGpRhk93Fkm7ACFZEhvDXIFbddiG0mWDFp5pU2wSDfojeG2r+AOUvLzXCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:35:15.739704Z"},"content_sha256":"9676741935bd9d3cc88e11c634e97800e7d496236d9fd6832b3001716b3540f9","schema_version":"1.0","event_id":"sha256:9676741935bd9d3cc88e11c634e97800e7d496236d9fd6832b3001716b3540f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SUHW7H5XHITMUOGLWLIQDWLQYR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Subwavelength imaging of sparse broadband sources surrounded by an open disordered medium from a single antenna","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Fang Li, Lianlin Li, Tie Jun Cui","submitted_at":"2014-01-16T02:04:25Z","abstract_excerpt":"In this letter we study the subwavelength imaging of sparse broadband sources inside a disordered medium by processing the data acquired by a single antenna. A mathematical model has been developed for solving such problem based on the idea of sparse reconstruction. We show that the strongly disordered medium can serves as an efficient apparatus for compressive measurement, which shifts the complexity of devising compressive sensing (CS) hardware from the design, fabrication and electronic control. The proposed method and associated results can find applications in several imaging disciplines,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.3810","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jqrcYetkN3MYfoP0qfF1e84mdrEXj3lF5BhOjosQO6fERKuma8UwLQAYstpfo72m22nrp6xRKsmanmhuZO2gDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:35:15.740049Z"},"content_sha256":"e4d6e4c5019dca08c9de6050818c9ec6317da79e6148c72e16c03450efcc7df8","schema_version":"1.0","event_id":"sha256:e4d6e4c5019dca08c9de6050818c9ec6317da79e6148c72e16c03450efcc7df8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SUHW7H5XHITMUOGLWLIQDWLQYR/bundle.json","state_url":"https://pith.science/pith/SUHW7H5XHITMUOGLWLIQDWLQYR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SUHW7H5XHITMUOGLWLIQDWLQYR/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":"2026-06-03T22:35:15Z","links":{"resolver":"https://pith.science/pith/SUHW7H5XHITMUOGLWLIQDWLQYR","bundle":"https://pith.science/pith/SUHW7H5XHITMUOGLWLIQDWLQYR/bundle.json","state":"https://pith.science/pith/SUHW7H5XHITMUOGLWLIQDWLQYR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SUHW7H5XHITMUOGLWLIQDWLQYR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SUHW7H5XHITMUOGLWLIQDWLQYR","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":"81a08e21799826b878002d94e841404a18fcc492b605ebff75912aacfcaca734","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-16T02:04:25Z","title_canon_sha256":"82164df0fc646ffe59f8c30d6c0e8e8ad449daedb1cfc97184775c25aab26f30"},"schema_version":"1.0","source":{"id":"1401.3810","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.3810","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"1401.3810v1","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.3810","created_at":"2026-05-18T01:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"SUHW7H5XHITM","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SUHW7H5XHITMUOGL","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SUHW7H5X","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:e4d6e4c5019dca08c9de6050818c9ec6317da79e6148c72e16c03450efcc7df8","target":"graph","created_at":"2026-05-18T01:45:25Z","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":"In this letter we study the subwavelength imaging of sparse broadband sources inside a disordered medium by processing the data acquired by a single antenna. A mathematical model has been developed for solving such problem based on the idea of sparse reconstruction. We show that the strongly disordered medium can serves as an efficient apparatus for compressive measurement, which shifts the complexity of devising compressive sensing (CS) hardware from the design, fabrication and electronic control. The proposed method and associated results can find applications in several imaging disciplines,","authors_text":"Fang Li, Lianlin Li, Tie Jun Cui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-16T02:04:25Z","title":"Subwavelength imaging of sparse broadband sources surrounded by an open disordered medium from a single antenna"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.3810","kind":"arxiv","version":1},"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":"sha256:9676741935bd9d3cc88e11c634e97800e7d496236d9fd6832b3001716b3540f9","target":"record","created_at":"2026-05-18T01:45:25Z","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":"81a08e21799826b878002d94e841404a18fcc492b605ebff75912aacfcaca734","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2014-01-16T02:04:25Z","title_canon_sha256":"82164df0fc646ffe59f8c30d6c0e8e8ad449daedb1cfc97184775c25aab26f30"},"schema_version":"1.0","source":{"id":"1401.3810","kind":"arxiv","version":1}},"canonical_sha256":"950f6f9fb73a26ca38cbb2d101d970c44a497c60268cebb63ba93e1e8f2b93ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"950f6f9fb73a26ca38cbb2d101d970c44a497c60268cebb63ba93e1e8f2b93ab","first_computed_at":"2026-05-18T01:45:25.051023Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:25.051023Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fEBPrvpEoyjaruAt5BnEbkF04UZyncs75wU+aDpoeMVYbc2piue/xzWwUDWBBTKxaBFREOAcvFgl5l2DKENhBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:25.051569Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.3810","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9676741935bd9d3cc88e11c634e97800e7d496236d9fd6832b3001716b3540f9","sha256:e4d6e4c5019dca08c9de6050818c9ec6317da79e6148c72e16c03450efcc7df8"],"state_sha256":"4860f890b327893fd29349143ccdd96d88c38bdd05c634817bd5318faf1f15aa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sjyiZGVXg4EiOee7Hfwquv3zFgSykuBjARq2YrXllwAwQPOCuu7dAtJib3tCpqOIHfpnVY/e1PpES1ta1uf6DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:35:15.742015Z","bundle_sha256":"476648c128033549f2dd7551a7bb60411471234cd9022edf5bee4324cce82488"}}