{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:UHVF6U5GZHAETMQKYWDVANTAQL","short_pith_number":"pith:UHVF6U5G","canonical_record":{"source":{"id":"2603.17706","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2026-03-18T13:24:03Z","cross_cats_sorted":[],"title_canon_sha256":"5d3666968386a96a85ac57c7fb02aaccc361d263a6fbbc523cd8f79f743df7ca","abstract_canon_sha256":"b8d8541ffbd1c8a9e627442a12ce58e8c7c5eb35554b1209bec740647533a7ea"},"schema_version":"1.0"},"canonical_sha256":"a1ea5f53a6c9c049b20ac58750366082ee5c551a1273076accdad0c6098931cc","source":{"kind":"arxiv","id":"2603.17706","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.17706","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"arxiv_version","alias_value":"2603.17706v2","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.17706","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"pith_short_12","alias_value":"UHVF6U5GZHAE","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"pith_short_16","alias_value":"UHVF6U5GZHAETMQK","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"pith_short_8","alias_value":"UHVF6U5G","created_at":"2026-05-20T00:03:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:UHVF6U5GZHAETMQKYWDVANTAQL","target":"record","payload":{"canonical_record":{"source":{"id":"2603.17706","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2026-03-18T13:24:03Z","cross_cats_sorted":[],"title_canon_sha256":"5d3666968386a96a85ac57c7fb02aaccc361d263a6fbbc523cd8f79f743df7ca","abstract_canon_sha256":"b8d8541ffbd1c8a9e627442a12ce58e8c7c5eb35554b1209bec740647533a7ea"},"schema_version":"1.0"},"canonical_sha256":"a1ea5f53a6c9c049b20ac58750366082ee5c551a1273076accdad0c6098931cc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:03:08.613144Z","signature_b64":"D6anyh9DMg3TlNM6lX3ONZOjSRNtZK3W2puob5n/R8GNNqKowwxTYbnbonTbOZO2CiDewyo+2GaSPX3y+WZCDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a1ea5f53a6c9c049b20ac58750366082ee5c551a1273076accdad0c6098931cc","last_reissued_at":"2026-05-20T00:03:08.612357Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:03:08.612357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2603.17706","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-20T00:03:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dvzk0BWnDIz4kQhwDVhGhuSfuGt4Xo3yBBWdD1+dBbyTIXFBoPsJildEeiGNWkYI2WNcjTL7EznkHBr4HDTUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:46:47.398366Z"},"content_sha256":"3840c53eb82e2639053472a23b0e37a98427ec08ce1cf60ece317eb6cc0509fd","schema_version":"1.0","event_id":"sha256:3840c53eb82e2639053472a23b0e37a98427ec08ce1cf60ece317eb6cc0509fd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:UHVF6U5GZHAETMQKYWDVANTAQL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Biclique Reconfiguration in Bipartite Graphs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DS","authors_text":"Emi Toyoda, Yota Otachi","submitted_at":"2026-03-18T13:24:03Z","abstract_excerpt":"We prove that Balanced Biclique Reconfiguration on bipartite graphs is PSPACE-complete. This implies the PSPACE-completeness of the spanning variant of Subgraph Reconfiguration under the token jumping rule for the property \"a graph is an $(i, j)$-complete bipartite graph,\" which was previously known only to be NP-hard [Hanaka et al. TCS 2020]. Using our result, we also show that Connected Components Reconfiguration with two connected components is PSPACE-complete under all previously studied rules, resolving an open problem of Nakahata [COCOON 2025] in the negative."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.17706","kind":"arxiv","version":2},"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/2603.17706/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":"2026-05-20T00:03:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"djLn760E+kYKtseQgvaQNkV64BbPFMG4WzCf1SaUn/tmW3BeKtUSfZ1ebhncjsPTGm9vup7W6yZPKjMUVXFcDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T11:46:47.399131Z"},"content_sha256":"455eabbdc5b87de44cec441d8d72736378997e1cc7cd383a2f76373f13b11bc4","schema_version":"1.0","event_id":"sha256:455eabbdc5b87de44cec441d8d72736378997e1cc7cd383a2f76373f13b11bc4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UHVF6U5GZHAETMQKYWDVANTAQL/bundle.json","state_url":"https://pith.science/pith/UHVF6U5GZHAETMQKYWDVANTAQL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UHVF6U5GZHAETMQKYWDVANTAQL/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":"2026-06-07T11:46:47Z","links":{"resolver":"https://pith.science/pith/UHVF6U5GZHAETMQKYWDVANTAQL","bundle":"https://pith.science/pith/UHVF6U5GZHAETMQKYWDVANTAQL/bundle.json","state":"https://pith.science/pith/UHVF6U5GZHAETMQKYWDVANTAQL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UHVF6U5GZHAETMQKYWDVANTAQL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:UHVF6U5GZHAETMQKYWDVANTAQL","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":"b8d8541ffbd1c8a9e627442a12ce58e8c7c5eb35554b1209bec740647533a7ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2026-03-18T13:24:03Z","title_canon_sha256":"5d3666968386a96a85ac57c7fb02aaccc361d263a6fbbc523cd8f79f743df7ca"},"schema_version":"1.0","source":{"id":"2603.17706","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2603.17706","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"arxiv_version","alias_value":"2603.17706v2","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2603.17706","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"pith_short_12","alias_value":"UHVF6U5GZHAE","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"pith_short_16","alias_value":"UHVF6U5GZHAETMQK","created_at":"2026-05-20T00:03:08Z"},{"alias_kind":"pith_short_8","alias_value":"UHVF6U5G","created_at":"2026-05-20T00:03:08Z"}],"graph_snapshots":[{"event_id":"sha256:455eabbdc5b87de44cec441d8d72736378997e1cc7cd383a2f76373f13b11bc4","target":"graph","created_at":"2026-05-20T00:03:08Z","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/2603.17706/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We prove that Balanced Biclique Reconfiguration on bipartite graphs is PSPACE-complete. This implies the PSPACE-completeness of the spanning variant of Subgraph Reconfiguration under the token jumping rule for the property \"a graph is an $(i, j)$-complete bipartite graph,\" which was previously known only to be NP-hard [Hanaka et al. TCS 2020]. Using our result, we also show that Connected Components Reconfiguration with two connected components is PSPACE-complete under all previously studied rules, resolving an open problem of Nakahata [COCOON 2025] in the negative.","authors_text":"Emi Toyoda, Yota Otachi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2026-03-18T13:24:03Z","title":"Biclique Reconfiguration in Bipartite Graphs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2603.17706","kind":"arxiv","version":2},"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":"sha256:3840c53eb82e2639053472a23b0e37a98427ec08ce1cf60ece317eb6cc0509fd","target":"record","created_at":"2026-05-20T00:03:08Z","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":"b8d8541ffbd1c8a9e627442a12ce58e8c7c5eb35554b1209bec740647533a7ea","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DS","submitted_at":"2026-03-18T13:24:03Z","title_canon_sha256":"5d3666968386a96a85ac57c7fb02aaccc361d263a6fbbc523cd8f79f743df7ca"},"schema_version":"1.0","source":{"id":"2603.17706","kind":"arxiv","version":2}},"canonical_sha256":"a1ea5f53a6c9c049b20ac58750366082ee5c551a1273076accdad0c6098931cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a1ea5f53a6c9c049b20ac58750366082ee5c551a1273076accdad0c6098931cc","first_computed_at":"2026-05-20T00:03:08.612357Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:03:08.612357Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D6anyh9DMg3TlNM6lX3ONZOjSRNtZK3W2puob5n/R8GNNqKowwxTYbnbonTbOZO2CiDewyo+2GaSPX3y+WZCDg==","signature_status":"signed_v1","signed_at":"2026-05-20T00:03:08.613144Z","signed_message":"canonical_sha256_bytes"},"source_id":"2603.17706","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3840c53eb82e2639053472a23b0e37a98427ec08ce1cf60ece317eb6cc0509fd","sha256:455eabbdc5b87de44cec441d8d72736378997e1cc7cd383a2f76373f13b11bc4"],"state_sha256":"44bf8288f4ee304a7b05b396b06ff83fda4ff3f4205080c06ed0bf53ce02aefa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9GvhjK1TcbD/z/8Rn8/xJTQfx+6GXyKe9mh90m0dGi9lArNWjZpAKbYR6WB91IEEfuXhVWziHwfaDPplgK4jBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T11:46:47.403012Z","bundle_sha256":"fbad13896d00cd82d527218b10aef6767bd6eba059d87a4e86e1ef9de8dc3c38"}}