{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:VDMWPXFAUAR5OV5MV3ALIW556Y","short_pith_number":"pith:VDMWPXFA","canonical_record":{"source":{"id":"2607.07548","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-08T15:46:48Z","cross_cats_sorted":[],"title_canon_sha256":"38a3049e27582be0dda9f9ebd5c0391d478e6bf1ba6bec79da49c4d5f5d5e868","abstract_canon_sha256":"97cba0e2a29f0ba6aae84c3128f90edb1700c99bebdf74bc339b7ba3d1eb18b8"},"schema_version":"1.0"},"canonical_sha256":"a8d967dca0a023d757acaec0b45bbdf6152ff1109a1abf68f53532d4a5e009f3","source":{"kind":"arxiv","id":"2607.07548","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.07548","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"arxiv_version","alias_value":"2607.07548v1","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.07548","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"pith_short_12","alias_value":"VDMWPXFAUAR5","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"pith_short_16","alias_value":"VDMWPXFAUAR5OV5M","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"pith_short_8","alias_value":"VDMWPXFA","created_at":"2026-07-09T01:20:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:VDMWPXFAUAR5OV5MV3ALIW556Y","target":"record","payload":{"canonical_record":{"source":{"id":"2607.07548","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-08T15:46:48Z","cross_cats_sorted":[],"title_canon_sha256":"38a3049e27582be0dda9f9ebd5c0391d478e6bf1ba6bec79da49c4d5f5d5e868","abstract_canon_sha256":"97cba0e2a29f0ba6aae84c3128f90edb1700c99bebdf74bc339b7ba3d1eb18b8"},"schema_version":"1.0"},"canonical_sha256":"a8d967dca0a023d757acaec0b45bbdf6152ff1109a1abf68f53532d4a5e009f3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-09T01:20:28.607247Z","signature_b64":"rAO07d+iuMc0fOHDq38gnbE3vabdJMYn2fL0y/iMXGd2vghl0awy6VsAkzkXROMLdHk5PvencckQevPaxwohDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a8d967dca0a023d757acaec0b45bbdf6152ff1109a1abf68f53532d4a5e009f3","last_reissued_at":"2026-07-09T01:20:28.606913Z","signature_status":"signed_v1","first_computed_at":"2026-07-09T01:20:28.606913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2607.07548","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":"2026-07-09T01:20:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7/QIr4MVc5pqPg0RkvKgYYTFCrUljB41yQ0XBLrx0+qz4ZQuNIsNehGUzoHLKTApQNs/FJv4ADXRBqFBKN/aDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:44:33.530023Z"},"content_sha256":"b29233546647b15db13319d61e334e27a232b601bb33b57aff5d8c90e3b54808","schema_version":"1.0","event_id":"sha256:b29233546647b15db13319d61e334e27a232b601bb33b57aff5d8c90e3b54808"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:VDMWPXFAUAR5OV5MV3ALIW556Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Think Big, Search Small: Where Capacity Matters in Hierarchical Search Agents?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Qinnan Cai, Xiang Li, Yibo Zhao","submitted_at":"2026-07-08T15:46:48Z","abstract_excerpt":"Large language model based search agents increasingly adopt multi-agent architectures in which a main agent decomposes a complex question into sub-queries and dispatches them to parallel sub-agents. However, existing systems instantiate all roles from a single model of identical scale, leaving open how model capacity should be distributed across roles. We factorize hierarchical search into three roles: a delegation role responsible for task decomposition, an execution role responsible for retrieval and evidence extraction, and an answer generation role held fixed as a confound control. We then"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07548","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/2607.07548/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":"2026-07-09T01:20:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x763/Q1U+VRuW1i1G9K4S6Sxu0y1SJEcFXy2gliUOqZtz3+1h67V/hWqZS5S9UoCvBGT99n/iNGEWLh5w7E/Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:44:33.530857Z"},"content_sha256":"1b8445af0f86efa38b35442cdd45b67e7c73aaecddcaab9cffc729748e90fa79","schema_version":"1.0","event_id":"sha256:1b8445af0f86efa38b35442cdd45b67e7c73aaecddcaab9cffc729748e90fa79"},{"event_type":"integrity_finding","subject_pith_number":"pith:2026:VDMWPXFAUAR5OV5MV3ALIW556Y","target":"integrity","payload":{"note":"URL 'https://arxiv' returned status transport error (transport error: [Errno -3] Temporary failure in name resolution) at last check.","snippet":null,"arxiv_id":"2607.07548","detector":"external_links","evidence":{"url":"https://arxiv","final_url":null,"host_kind":"website","status_code":0,"status_text":"transport error: [Errno -3] Temporary failure in name resolution","verdict_class":"incontrovertible","checked_at_unix":1783618573.1398292},"severity":"advisory","ref_index":null,"audited_at":"2026-07-09T17:36:13.141411Z","event_type":"pith.integrity.v1","detected_doi":null,"detector_url":"https://pith.science/pith-integrity-protocol#external_links","external_url":"https://arxiv","finding_type":"dead_url","evidence_hash":"32dafbe80a7485155abbd22ec85d4eb2292475974104c5eaf6a86b8d44783990","paper_version":1,"verdict_class":"incontrovertible","resolved_title":null,"detector_version":"1.0.0","detected_arxiv_id":null,"integrity_event_id":10183,"payload_sha256":"553c8dbea6fb2a21f3c6cf4187a4fbc7a0ddae269dea3c026edb4c0192f67dfe","signature_b64":"mkwFMwIv5qEQY3oBBDnmbsFHV2jK7/dabSfuFSFcIf2YOkXSrgMCGrfKCzbFxbtLKHv11ciOXXZdjSGbmkJGAQ==","signing_key_id":"pith-v1-2026-05"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-09T17:38:00Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vIeqNHpgVJVQQrcOP8JoUE6UXKiIhNDclxHGpwbTMGSCu34OVL9QEmEwICsSIOScXfNUNdmcdRCJjzMAt5GuDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T02:44:33.687124Z"},"content_sha256":"8f7a7dddcfff124051ab90f8aa5dee476047b433a8211be8fb8690b8b0cbf7a0","schema_version":"1.0","event_id":"sha256:8f7a7dddcfff124051ab90f8aa5dee476047b433a8211be8fb8690b8b0cbf7a0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VDMWPXFAUAR5OV5MV3ALIW556Y/bundle.json","state_url":"https://pith.science/pith/VDMWPXFAUAR5OV5MV3ALIW556Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VDMWPXFAUAR5OV5MV3ALIW556Y/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":"2026-08-04T02:44:33Z","links":{"resolver":"https://pith.science/pith/VDMWPXFAUAR5OV5MV3ALIW556Y","bundle":"https://pith.science/pith/VDMWPXFAUAR5OV5MV3ALIW556Y/bundle.json","state":"https://pith.science/pith/VDMWPXFAUAR5OV5MV3ALIW556Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VDMWPXFAUAR5OV5MV3ALIW556Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:VDMWPXFAUAR5OV5MV3ALIW556Y","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"97cba0e2a29f0ba6aae84c3128f90edb1700c99bebdf74bc339b7ba3d1eb18b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-08T15:46:48Z","title_canon_sha256":"38a3049e27582be0dda9f9ebd5c0391d478e6bf1ba6bec79da49c4d5f5d5e868"},"schema_version":"1.0","source":{"id":"2607.07548","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.07548","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"arxiv_version","alias_value":"2607.07548v1","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.07548","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"pith_short_12","alias_value":"VDMWPXFAUAR5","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"pith_short_16","alias_value":"VDMWPXFAUAR5OV5M","created_at":"2026-07-09T01:20:28Z"},{"alias_kind":"pith_short_8","alias_value":"VDMWPXFA","created_at":"2026-07-09T01:20:28Z"}],"graph_snapshots":[{"event_id":"sha256:1b8445af0f86efa38b35442cdd45b67e7c73aaecddcaab9cffc729748e90fa79","target":"graph","created_at":"2026-07-09T01:20:28Z","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/2607.07548/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large language model based search agents increasingly adopt multi-agent architectures in which a main agent decomposes a complex question into sub-queries and dispatches them to parallel sub-agents. However, existing systems instantiate all roles from a single model of identical scale, leaving open how model capacity should be distributed across roles. We factorize hierarchical search into three roles: a delegation role responsible for task decomposition, an execution role responsible for retrieval and evidence extraction, and an answer generation role held fixed as a confound control. We then","authors_text":"Qinnan Cai, Xiang Li, Yibo Zhao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-08T15:46:48Z","title":"Think Big, Search Small: Where Capacity Matters in Hierarchical Search Agents?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.07548","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:b29233546647b15db13319d61e334e27a232b601bb33b57aff5d8c90e3b54808","target":"record","created_at":"2026-07-09T01:20:28Z","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":"97cba0e2a29f0ba6aae84c3128f90edb1700c99bebdf74bc339b7ba3d1eb18b8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2026-07-08T15:46:48Z","title_canon_sha256":"38a3049e27582be0dda9f9ebd5c0391d478e6bf1ba6bec79da49c4d5f5d5e868"},"schema_version":"1.0","source":{"id":"2607.07548","kind":"arxiv","version":1}},"canonical_sha256":"a8d967dca0a023d757acaec0b45bbdf6152ff1109a1abf68f53532d4a5e009f3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a8d967dca0a023d757acaec0b45bbdf6152ff1109a1abf68f53532d4a5e009f3","first_computed_at":"2026-07-09T01:20:28.606913Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-09T01:20:28.606913Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rAO07d+iuMc0fOHDq38gnbE3vabdJMYn2fL0y/iMXGd2vghl0awy6VsAkzkXROMLdHk5PvencckQevPaxwohDw==","signature_status":"signed_v1","signed_at":"2026-07-09T01:20:28.607247Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.07548","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b29233546647b15db13319d61e334e27a232b601bb33b57aff5d8c90e3b54808","sha256:1b8445af0f86efa38b35442cdd45b67e7c73aaecddcaab9cffc729748e90fa79","sha256:8f7a7dddcfff124051ab90f8aa5dee476047b433a8211be8fb8690b8b0cbf7a0"],"state_sha256":"7d8b02e628976c87d3adf39e788fd04a97549e6bf1ea0286d41033218b2b4041"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b+XWOMvDn7JAIa/BnsUSeJCAdQw+5+aRKKSSlb6VRevqDgdHMCQBfsy9TgMAKz1yeEEbBwSeiH/gLarMx5GaCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T02:44:33.689813Z","bundle_sha256":"3bb513167a2b09ad572eb44d3c775d9409e7a724b4940e656589aede1fbe0eaf"}}