{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:R3JEPARP7MIZHZYXDCWXGTKLCX","short_pith_number":"pith:R3JEPARP","canonical_record":{"source":{"id":"2503.17990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-03-23T08:50:44Z","cross_cats_sorted":[],"title_canon_sha256":"7d7897f99463c5c5a507c7debe65866fe1d9ed0811307e77c384eb25d6e76ef6","abstract_canon_sha256":"61871a15bfae50a08d83202d6eb6a755437dfe6f2e32c788a7d3749eb0eb33d0"},"schema_version":"1.0"},"canonical_sha256":"8ed247822ffb1193e71718ad734d4b15f4662ab969f2956edc048030571071bb","source":{"kind":"arxiv","id":"2503.17990","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.17990","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"2503.17990v1","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.17990","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"R3JEPARP7MIZ","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"R3JEPARP7MIZHZYX","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"R3JEPARP","created_at":"2026-07-05T10:38:00Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:R3JEPARP7MIZHZYXDCWXGTKLCX","target":"record","payload":{"canonical_record":{"source":{"id":"2503.17990","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-03-23T08:50:44Z","cross_cats_sorted":[],"title_canon_sha256":"7d7897f99463c5c5a507c7debe65866fe1d9ed0811307e77c384eb25d6e76ef6","abstract_canon_sha256":"61871a15bfae50a08d83202d6eb6a755437dfe6f2e32c788a7d3749eb0eb33d0"},"schema_version":"1.0"},"canonical_sha256":"8ed247822ffb1193e71718ad734d4b15f4662ab969f2956edc048030571071bb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:38:00.012043Z","signature_b64":"0QFXxbU3ivsR1CGgMTIARuzA6Uku2BEmbyxdOLvoZ/M80BJKJcjFMDewmWZsNiahshZ24CcsPXrQMVY0n3SODQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8ed247822ffb1193e71718ad734d4b15f4662ab969f2956edc048030571071bb","last_reissued_at":"2026-07-05T10:38:00.011114Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:38:00.011114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.17990","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":"2026-07-05T10:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HJOXeZiFvSVD5i3+xpjaIA3TD5c9SqE+/cIP8MfBqXr5DlSyoBzjl3BP2cqMKubpUDVhsVOZ0xqjEvSBSAlGAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T18:37:01.328606Z"},"content_sha256":"1643e723ca1bc1d649d50eaca2ea57b7fcf78bcd626e2b0e15916d7fd56f2dd7","schema_version":"1.0","event_id":"sha256:1643e723ca1bc1d649d50eaca2ea57b7fcf78bcd626e2b0e15916d7fd56f2dd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:R3JEPARP7MIZHZYXDCWXGTKLCX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SUNAR: Semantic Uncertainty based Neighborhood Aware Retrieval for Complex QA","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Avishek Anand, Mandeep Rathee, V Venktesh","submitted_at":"2025-03-23T08:50:44Z","abstract_excerpt":"Complex question-answering (QA) systems face significant challenges in retrieving and reasoning over information that addresses multi-faceted queries. While large language models (LLMs) have advanced the reasoning capabilities of these systems, the bounded-recall problem persists, where procuring all relevant documents in first-stage retrieval remains a challenge. Missing pertinent documents at this stage leads to performance degradation that cannot be remedied in later stages, especially given the limited context windows of LLMs which necessitate high recall at smaller retrieval depths. In th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.17990","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/2503.17990/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":"2026-07-05T10:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DbZPFq/udM2LtgO+zAcCowpH2kcZjmJsEoY2QcI3heX5WHl16OROiJY4gNtu2SKinCuHxTxyjVHjQwGW6/THCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T18:37:01.329555Z"},"content_sha256":"98700ffc5eaa3ad3704cddad5ae6746c0e177354e3e5392ee7f30b4082110ad0","schema_version":"1.0","event_id":"sha256:98700ffc5eaa3ad3704cddad5ae6746c0e177354e3e5392ee7f30b4082110ad0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/R3JEPARP7MIZHZYXDCWXGTKLCX/bundle.json","state_url":"https://pith.science/pith/R3JEPARP7MIZHZYXDCWXGTKLCX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/R3JEPARP7MIZHZYXDCWXGTKLCX/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":"2026-08-07T18:37:01Z","links":{"resolver":"https://pith.science/pith/R3JEPARP7MIZHZYXDCWXGTKLCX","bundle":"https://pith.science/pith/R3JEPARP7MIZHZYXDCWXGTKLCX/bundle.json","state":"https://pith.science/pith/R3JEPARP7MIZHZYXDCWXGTKLCX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/R3JEPARP7MIZHZYXDCWXGTKLCX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:R3JEPARP7MIZHZYXDCWXGTKLCX","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":"61871a15bfae50a08d83202d6eb6a755437dfe6f2e32c788a7d3749eb0eb33d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-03-23T08:50:44Z","title_canon_sha256":"7d7897f99463c5c5a507c7debe65866fe1d9ed0811307e77c384eb25d6e76ef6"},"schema_version":"1.0","source":{"id":"2503.17990","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.17990","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"arxiv_version","alias_value":"2503.17990v1","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.17990","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"pith_short_12","alias_value":"R3JEPARP7MIZ","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"pith_short_16","alias_value":"R3JEPARP7MIZHZYX","created_at":"2026-07-05T10:38:00Z"},{"alias_kind":"pith_short_8","alias_value":"R3JEPARP","created_at":"2026-07-05T10:38:00Z"}],"graph_snapshots":[{"event_id":"sha256:98700ffc5eaa3ad3704cddad5ae6746c0e177354e3e5392ee7f30b4082110ad0","target":"graph","created_at":"2026-07-05T10:38:00Z","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/2503.17990/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Complex question-answering (QA) systems face significant challenges in retrieving and reasoning over information that addresses multi-faceted queries. While large language models (LLMs) have advanced the reasoning capabilities of these systems, the bounded-recall problem persists, where procuring all relevant documents in first-stage retrieval remains a challenge. Missing pertinent documents at this stage leads to performance degradation that cannot be remedied in later stages, especially given the limited context windows of LLMs which necessitate high recall at smaller retrieval depths. In th","authors_text":"Avishek Anand, Mandeep Rathee, V Venktesh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-03-23T08:50:44Z","title":"SUNAR: Semantic Uncertainty based Neighborhood Aware Retrieval for Complex QA"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.17990","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":"sha256:1643e723ca1bc1d649d50eaca2ea57b7fcf78bcd626e2b0e15916d7fd56f2dd7","target":"record","created_at":"2026-07-05T10:38:00Z","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":"61871a15bfae50a08d83202d6eb6a755437dfe6f2e32c788a7d3749eb0eb33d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-03-23T08:50:44Z","title_canon_sha256":"7d7897f99463c5c5a507c7debe65866fe1d9ed0811307e77c384eb25d6e76ef6"},"schema_version":"1.0","source":{"id":"2503.17990","kind":"arxiv","version":1}},"canonical_sha256":"8ed247822ffb1193e71718ad734d4b15f4662ab969f2956edc048030571071bb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8ed247822ffb1193e71718ad734d4b15f4662ab969f2956edc048030571071bb","first_computed_at":"2026-07-05T10:38:00.011114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:38:00.011114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0QFXxbU3ivsR1CGgMTIARuzA6Uku2BEmbyxdOLvoZ/M80BJKJcjFMDewmWZsNiahshZ24CcsPXrQMVY0n3SODQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:38:00.012043Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.17990","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1643e723ca1bc1d649d50eaca2ea57b7fcf78bcd626e2b0e15916d7fd56f2dd7","sha256:98700ffc5eaa3ad3704cddad5ae6746c0e177354e3e5392ee7f30b4082110ad0"],"state_sha256":"1a7899077ce1dc352f54af1454bebd7e17405c98f3386b90ec797004606a7d08"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eNnTAaF6/tMBnrmIuG/GhB+S5GUYU3EzHLp1ARCRQTUwKi+YvVLKGB/GtvjnTg3i1R6uqgVF2xIUn6ZqGKYsAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T18:37:01.335727Z","bundle_sha256":"95ecd56d7c25c4f345e7d5d793f471c6dbbc1231d2e7cdc8359e7b2fc51eccce"}}