{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:Y5OK7D445WTNOATEE3ONU6QQMO","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":"3ff54ed02480afd8e3f8bde797c3c07171d355c7f0d9a39e167f694f34d554da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-04-10T14:52:03Z","title_canon_sha256":"34c6eb48aba9123268c5d1d19937689d8c5d433c3c3072e97587d579bed74298"},"schema_version":"1.0","source":{"id":"2504.07815","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.07815","created_at":"2026-07-05T10:47:15Z"},{"alias_kind":"arxiv_version","alias_value":"2504.07815v1","created_at":"2026-07-05T10:47:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.07815","created_at":"2026-07-05T10:47:15Z"},{"alias_kind":"pith_short_12","alias_value":"Y5OK7D445WTN","created_at":"2026-07-05T10:47:15Z"},{"alias_kind":"pith_short_16","alias_value":"Y5OK7D445WTNOATE","created_at":"2026-07-05T10:47:15Z"},{"alias_kind":"pith_short_8","alias_value":"Y5OK7D44","created_at":"2026-07-05T10:47:15Z"}],"graph_snapshots":[{"event_id":"sha256:025f2b7c0a273d5356f5734540c4d7e57424c94ad7603d335239b89c530e5c43","target":"graph","created_at":"2026-07-05T10:47:15Z","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/2504.07815/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Investigative workflows require interactive exploratory analysis on large heterogeneous knowledge graphs. Current databases show limitations in enabling such task. This paper discusses the architecture of Siren Federate, a system that efficiently supports exploratory graph analysis by bridging document-oriented, relational and graph models. Technical contributions include distributed join algorithms, adaptive query planning, query plan folding, semantic caching, and semi-join decomposition for path query. Semi-join decomposition addresses the exponential growth of intermediate results in path-","authors_text":"Georgeta Bordea, Matteo Catena, Renaud Delbru, Stephane Campinas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-04-10T14:52:03Z","title":"Siren Federate: Bridging document, relational, and graph models for exploratory graph analysis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.07815","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:f2fb69ec4e5839c8bbfa06f417a962cd5b1855fca211e809a9555e72dd510c38","target":"record","created_at":"2026-07-05T10:47:15Z","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":"3ff54ed02480afd8e3f8bde797c3c07171d355c7f0d9a39e167f694f34d554da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2025-04-10T14:52:03Z","title_canon_sha256":"34c6eb48aba9123268c5d1d19937689d8c5d433c3c3072e97587d579bed74298"},"schema_version":"1.0","source":{"id":"2504.07815","kind":"arxiv","version":1}},"canonical_sha256":"c75caf8f9ceda6d7026426dcda7a1063b6e87fa6af0b471d8d1292c921608004","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c75caf8f9ceda6d7026426dcda7a1063b6e87fa6af0b471d8d1292c921608004","first_computed_at":"2026-07-05T10:47:15.165579Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:47:15.165579Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t+gHLpyuz846YdokNjguWLJncqf6Vhz7M9uobor3d36Uu4fdTDo/zthJilgXgVpBZEF50sA72JqCrpwegMGZAw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:47:15.165969Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.07815","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2fb69ec4e5839c8bbfa06f417a962cd5b1855fca211e809a9555e72dd510c38","sha256:025f2b7c0a273d5356f5734540c4d7e57424c94ad7603d335239b89c530e5c43"],"state_sha256":"1f3751c163d9aa541f7c74f5287912147b48700066ceb03781929d29761f2e74"}