{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:BYBX6QBSTQFG4RPG7OS6H3X5V6","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":"2d5e93b250977165cfccf5acece56bdc5cd4fa4dfa361367eb5dd93727d96a45","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-02-12T15:47:29Z","title_canon_sha256":"80dfc5e34166689090daf5083aeb10231e43514f8d1bcb5d4466f4c8eba2fdd5"},"schema_version":"1.0","source":{"id":"1202.2536","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1202.2536","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"arxiv_version","alias_value":"1202.2536v1","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1202.2536","created_at":"2026-05-18T03:53:54Z"},{"alias_kind":"pith_short_12","alias_value":"BYBX6QBSTQFG","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"BYBX6QBSTQFG4RPG","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"BYBX6QBS","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:7cffa74384f0e4f3e6b40d86a237d401a17e5c87b9f78e1daa26c27999496da7","target":"graph","created_at":"2026-05-18T03:53:54Z","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"},"paper":{"abstract_excerpt":"We introduce two types of message passing algorithms for quantified Boolean formulas (QBF). The first type is a message passing based heuristics that can prove unsatisfiability of the QBF by assigning the universal variables in such a way that the remaining formula is unsatisfiable. In the second type, we use message passing to guide branching heuristics of a Davis-Putnam Logemann-Loveland (DPLL) complete solver. Numerical experiments show that on random QBFs our branching heuristics gives robust exponential efficiency gain with respect to the state-of-art solvers. We also manage to solve some","authors_text":"Abolfazl Ramezanpour, Lenka Zdeborov\\'a, Pan Zhang, Riccardo Zecchina","cross_cats":["cond-mat.dis-nn"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-02-12T15:47:29Z","title":"Message passing for quantified Boolean formulas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1202.2536","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:c3d0b7e050ae2157dee00a0032689c6d17c1b4e9f4459a91ce66dcf31b214c3c","target":"record","created_at":"2026-05-18T03:53:54Z","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":"2d5e93b250977165cfccf5acece56bdc5cd4fa4dfa361367eb5dd93727d96a45","cross_cats_sorted":["cond-mat.dis-nn"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2012-02-12T15:47:29Z","title_canon_sha256":"80dfc5e34166689090daf5083aeb10231e43514f8d1bcb5d4466f4c8eba2fdd5"},"schema_version":"1.0","source":{"id":"1202.2536","kind":"arxiv","version":1}},"canonical_sha256":"0e037f40329c0a6e45e6fba5e3eefdafbf2318cac77646880aea08eff5e69a22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0e037f40329c0a6e45e6fba5e3eefdafbf2318cac77646880aea08eff5e69a22","first_computed_at":"2026-05-18T03:53:54.416830Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:53:54.416830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mI/xio5jUOx8hKXhfE/AH0EvnnQFYsuMXJMzVj1JmitCYqgHiCvneyGEgnXSDd+mVm0Q9jVtatQTBuMlGGbLCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:53:54.417456Z","signed_message":"canonical_sha256_bytes"},"source_id":"1202.2536","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3d0b7e050ae2157dee00a0032689c6d17c1b4e9f4459a91ce66dcf31b214c3c","sha256:7cffa74384f0e4f3e6b40d86a237d401a17e5c87b9f78e1daa26c27999496da7"],"state_sha256":"b7eda7b98070b232ee355760b64e201f56f9aefb7705407f37a3de30f714ff8d"}