{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:7TB3SXVU7JBEOVIR44SCHTUR75","short_pith_number":"pith:7TB3SXVU","canonical_record":{"source":{"id":"2502.05016","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T15:45:11Z","cross_cats_sorted":[],"title_canon_sha256":"5fab372920614b00d80be08043ba9f3479a365f09244264399368a43c17dda01","abstract_canon_sha256":"127f8fe0e770b212959d7c47d4832e36c5d4d27c711c20ad21a021664715acec"},"schema_version":"1.0"},"canonical_sha256":"fcc3b95eb4fa42475511e72423ce91ff6ba29360805fc1abc9592ed580e4b69d","source":{"kind":"arxiv","id":"2502.05016","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.05016","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"arxiv_version","alias_value":"2502.05016v1","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.05016","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"pith_short_12","alias_value":"7TB3SXVU7JBE","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"pith_short_16","alias_value":"7TB3SXVU7JBEOVIR","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"pith_short_8","alias_value":"7TB3SXVU","created_at":"2026-07-05T10:11:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:7TB3SXVU7JBEOVIR44SCHTUR75","target":"record","payload":{"canonical_record":{"source":{"id":"2502.05016","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T15:45:11Z","cross_cats_sorted":[],"title_canon_sha256":"5fab372920614b00d80be08043ba9f3479a365f09244264399368a43c17dda01","abstract_canon_sha256":"127f8fe0e770b212959d7c47d4832e36c5d4d27c711c20ad21a021664715acec"},"schema_version":"1.0"},"canonical_sha256":"fcc3b95eb4fa42475511e72423ce91ff6ba29360805fc1abc9592ed580e4b69d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:11:01.585956Z","signature_b64":"1otyAJdhfWYEokbdaLkyJLT4t0/hTjRrYHV9kG0W3T3C5kHTFnNL/uttOYt7EVlGQm9/Os93lXkauH9xdFAMCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fcc3b95eb4fa42475511e72423ce91ff6ba29360805fc1abc9592ed580e4b69d","last_reissued_at":"2026-07-05T10:11:01.585490Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:11:01.585490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.05016","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":"2026-07-05T10:11:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CftI0DK/I/ZVZmrCjjqDT0o3MUguvQkBrcVDK1l/mzAEOnfKwPkn8DjjHdUkbhqMOd6R38hzm0wtNk2sDZ/7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T12:51:39.873585Z"},"content_sha256":"f6bd77c6fce08f3d40ddce01797a85c279c6cae3c25ecce254d980d3529d827c","schema_version":"1.0","event_id":"sha256:f6bd77c6fce08f3d40ddce01797a85c279c6cae3c25ecce254d980d3529d827c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:7TB3SXVU7JBEOVIR44SCHTUR75","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Impact of Model Mismatch on DOA Estimation with MUSIC: Near-Field and Far-Field","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Don-Roberts Emenonye, Harpreet S. Dhillon, R. Michael Buehrer","submitted_at":"2025-02-07T15:45:11Z","abstract_excerpt":"There has been substantial work on developing variants of the multiple signal classification (MUSIC) algorithms that take advantage of the information present in the near-field propagation regime. However, it is not always easy to determine the correct propagation regime, which opens the possibility of incorrectly applying simpler algorithms (meant for far-field) in the near-field regime. Inspired by this, we use simulation results to investigate the performance drop when there is a mismatch between the signal model in the MUSIC algorithm and the propagation regime. For direction of arrival (D"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.05016","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/2502.05016/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:11:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OwaVNY7Asr8SOCPWXgMyHbpb3KqUk0RzCl8FAyF3rL02urBAlihHblGYbSg45zqH6iZqUL3wh0Juk3xCZVgdAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T12:51:39.874112Z"},"content_sha256":"edf14be300ce1dcdf9dcdf85eed701935875f59b385ac124a051f403ad36a913","schema_version":"1.0","event_id":"sha256:edf14be300ce1dcdf9dcdf85eed701935875f59b385ac124a051f403ad36a913"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7TB3SXVU7JBEOVIR44SCHTUR75/bundle.json","state_url":"https://pith.science/pith/7TB3SXVU7JBEOVIR44SCHTUR75/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7TB3SXVU7JBEOVIR44SCHTUR75/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":"2026-08-18T12:51:39Z","links":{"resolver":"https://pith.science/pith/7TB3SXVU7JBEOVIR44SCHTUR75","bundle":"https://pith.science/pith/7TB3SXVU7JBEOVIR44SCHTUR75/bundle.json","state":"https://pith.science/pith/7TB3SXVU7JBEOVIR44SCHTUR75/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7TB3SXVU7JBEOVIR44SCHTUR75/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7TB3SXVU7JBEOVIR44SCHTUR75","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":"127f8fe0e770b212959d7c47d4832e36c5d4d27c711c20ad21a021664715acec","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T15:45:11Z","title_canon_sha256":"5fab372920614b00d80be08043ba9f3479a365f09244264399368a43c17dda01"},"schema_version":"1.0","source":{"id":"2502.05016","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.05016","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"arxiv_version","alias_value":"2502.05016v1","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.05016","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"pith_short_12","alias_value":"7TB3SXVU7JBE","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"pith_short_16","alias_value":"7TB3SXVU7JBEOVIR","created_at":"2026-07-05T10:11:01Z"},{"alias_kind":"pith_short_8","alias_value":"7TB3SXVU","created_at":"2026-07-05T10:11:01Z"}],"graph_snapshots":[{"event_id":"sha256:edf14be300ce1dcdf9dcdf85eed701935875f59b385ac124a051f403ad36a913","target":"graph","created_at":"2026-07-05T10:11:01Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.05016/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"There has been substantial work on developing variants of the multiple signal classification (MUSIC) algorithms that take advantage of the information present in the near-field propagation regime. However, it is not always easy to determine the correct propagation regime, which opens the possibility of incorrectly applying simpler algorithms (meant for far-field) in the near-field regime. Inspired by this, we use simulation results to investigate the performance drop when there is a mismatch between the signal model in the MUSIC algorithm and the propagation regime. For direction of arrival (D","authors_text":"Don-Roberts Emenonye, Harpreet S. Dhillon, R. Michael Buehrer","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T15:45:11Z","title":"Impact of Model Mismatch on DOA Estimation with MUSIC: Near-Field and Far-Field"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.05016","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:f6bd77c6fce08f3d40ddce01797a85c279c6cae3c25ecce254d980d3529d827c","target":"record","created_at":"2026-07-05T10:11:01Z","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":"127f8fe0e770b212959d7c47d4832e36c5d4d27c711c20ad21a021664715acec","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"eess.SP","submitted_at":"2025-02-07T15:45:11Z","title_canon_sha256":"5fab372920614b00d80be08043ba9f3479a365f09244264399368a43c17dda01"},"schema_version":"1.0","source":{"id":"2502.05016","kind":"arxiv","version":1}},"canonical_sha256":"fcc3b95eb4fa42475511e72423ce91ff6ba29360805fc1abc9592ed580e4b69d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fcc3b95eb4fa42475511e72423ce91ff6ba29360805fc1abc9592ed580e4b69d","first_computed_at":"2026-07-05T10:11:01.585490Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:11:01.585490Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1otyAJdhfWYEokbdaLkyJLT4t0/hTjRrYHV9kG0W3T3C5kHTFnNL/uttOYt7EVlGQm9/Os93lXkauH9xdFAMCA==","signature_status":"signed_v1","signed_at":"2026-07-05T10:11:01.585956Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.05016","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f6bd77c6fce08f3d40ddce01797a85c279c6cae3c25ecce254d980d3529d827c","sha256:edf14be300ce1dcdf9dcdf85eed701935875f59b385ac124a051f403ad36a913"],"state_sha256":"3d1909b69621c47c7911d7a642f498da96d7c19272368aca3db13bfc3725e131"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qh09rWeZ9OU+gYcq4axIQ2X8I6BXUw48bpZUwCNFwNxjMFSTCan+aMSti2RuyFJQ+CU38IExelx817JJQLH0DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T12:51:39.879357Z","bundle_sha256":"6e944637b2f9a5a5fd940342bb310d3bd0b93ff81246ecf907799937cfa0f137"}}