{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:QJVDD3BIHWG6AMHP4BXVJDHLQ7","short_pith_number":"pith:QJVDD3BI","canonical_record":{"source":{"id":"1702.08256","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-02-27T12:42:33Z","cross_cats_sorted":[],"title_canon_sha256":"1b067227fca951ed0636f620440a57cd93a89442374630ab011dfb707de0a8df","abstract_canon_sha256":"62d39328a9cb9474e316ceb3d85d7f5130f14fe76d0fbf5cf0a937247790f9cc"},"schema_version":"1.0"},"canonical_sha256":"826a31ec283d8de030efe06f548ceb87defa89884ba126c87af2e82908bbcc81","source":{"kind":"arxiv","id":"1702.08256","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08256","created_at":"2026-05-18T00:39:28Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08256v2","created_at":"2026-05-18T00:39:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08256","created_at":"2026-05-18T00:39:28Z"},{"alias_kind":"pith_short_12","alias_value":"QJVDD3BIHWG6","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QJVDD3BIHWG6AMHP","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QJVDD3BI","created_at":"2026-05-18T12:31:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:QJVDD3BIHWG6AMHP4BXVJDHLQ7","target":"record","payload":{"canonical_record":{"source":{"id":"1702.08256","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-02-27T12:42:33Z","cross_cats_sorted":[],"title_canon_sha256":"1b067227fca951ed0636f620440a57cd93a89442374630ab011dfb707de0a8df","abstract_canon_sha256":"62d39328a9cb9474e316ceb3d85d7f5130f14fe76d0fbf5cf0a937247790f9cc"},"schema_version":"1.0"},"canonical_sha256":"826a31ec283d8de030efe06f548ceb87defa89884ba126c87af2e82908bbcc81","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:28.641361Z","signature_b64":"JFghcLTDu5irU/XQ61imsTm0wZVR9B2k642fJB6O0DvocElNwfmwskNMe6j9b8dFHzNpHcPqCdAfjGHB1fA7AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"826a31ec283d8de030efe06f548ceb87defa89884ba126c87af2e82908bbcc81","last_reissued_at":"2026-05-18T00:39:28.640928Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:28.640928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.08256","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":"2026-05-18T00:39:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HXbfFYm5LMyG3Pi8dMLb9xxf7eLEHogEWRKluzmbj1Bo05O1ZhFQ382f7ykv1huBbFDiVYVj+F84NhDpXFOfAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:55:07.799889Z"},"content_sha256":"51e0f322e807082ef218701088747427d14c302c0dca8c213cf34168f89beca9","schema_version":"1.0","event_id":"sha256:51e0f322e807082ef218701088747427d14c302c0dca8c213cf34168f89beca9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:QJVDD3BIHWG6AMHP4BXVJDHLQ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"DepQBF 6.0: A Search-Based QBF Solver Beyond Traditional QCDCL","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Florian Lonsing, Uwe Egly","submitted_at":"2017-02-27T12:42:33Z","abstract_excerpt":"We present the latest major release version 6.0 of the quantified Boolean formula (QBF) solver DepQBF, which is based on QCDCL. QCDCL is an extension of the conflict-driven clause learning (CDCL) paradigm implemented in state of the art propositional satisfiability (SAT) solvers. The Q-resolution calculus (QRES) is a QBF proof system which underlies QCDCL. QCDCL solvers can produce QRES proofs of QBFs in prenex conjunctive normal form (PCNF) as a byproduct of the solving process. In contrast to traditional QCDCL based on QRES, DepQBF 6.0 implements a variant of QCDCL which is based on a genera"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08256","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":""},"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":"2026-05-18T00:39:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zg9JRI/LEy5yb2yo/pe3UIZPrIbbuWEx9ylSSMo0L2+4IjelyqdWxjfd9nEv/+Jq7Z0JJBI4DM2wusfkigo+DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T07:55:07.800234Z"},"content_sha256":"6406a61cd92f150db561487e99c97874a4c9671867f6df94e0161e66f17004c2","schema_version":"1.0","event_id":"sha256:6406a61cd92f150db561487e99c97874a4c9671867f6df94e0161e66f17004c2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7/bundle.json","state_url":"https://pith.science/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7/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":"2026-05-28T07:55:07Z","links":{"resolver":"https://pith.science/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7","bundle":"https://pith.science/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7/bundle.json","state":"https://pith.science/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QJVDD3BIHWG6AMHP4BXVJDHLQ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:QJVDD3BIHWG6AMHP4BXVJDHLQ7","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":"62d39328a9cb9474e316ceb3d85d7f5130f14fe76d0fbf5cf0a937247790f9cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-02-27T12:42:33Z","title_canon_sha256":"1b067227fca951ed0636f620440a57cd93a89442374630ab011dfb707de0a8df"},"schema_version":"1.0","source":{"id":"1702.08256","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.08256","created_at":"2026-05-18T00:39:28Z"},{"alias_kind":"arxiv_version","alias_value":"1702.08256v2","created_at":"2026-05-18T00:39:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08256","created_at":"2026-05-18T00:39:28Z"},{"alias_kind":"pith_short_12","alias_value":"QJVDD3BIHWG6","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_16","alias_value":"QJVDD3BIHWG6AMHP","created_at":"2026-05-18T12:31:39Z"},{"alias_kind":"pith_short_8","alias_value":"QJVDD3BI","created_at":"2026-05-18T12:31:39Z"}],"graph_snapshots":[{"event_id":"sha256:6406a61cd92f150db561487e99c97874a4c9671867f6df94e0161e66f17004c2","target":"graph","created_at":"2026-05-18T00:39:28Z","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"},"paper":{"abstract_excerpt":"We present the latest major release version 6.0 of the quantified Boolean formula (QBF) solver DepQBF, which is based on QCDCL. QCDCL is an extension of the conflict-driven clause learning (CDCL) paradigm implemented in state of the art propositional satisfiability (SAT) solvers. The Q-resolution calculus (QRES) is a QBF proof system which underlies QCDCL. QCDCL solvers can produce QRES proofs of QBFs in prenex conjunctive normal form (PCNF) as a byproduct of the solving process. In contrast to traditional QCDCL based on QRES, DepQBF 6.0 implements a variant of QCDCL which is based on a genera","authors_text":"Florian Lonsing, Uwe Egly","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-02-27T12:42:33Z","title":"DepQBF 6.0: A Search-Based QBF Solver Beyond Traditional QCDCL"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08256","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":"sha256:51e0f322e807082ef218701088747427d14c302c0dca8c213cf34168f89beca9","target":"record","created_at":"2026-05-18T00:39:28Z","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":"62d39328a9cb9474e316ceb3d85d7f5130f14fe76d0fbf5cf0a937247790f9cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2017-02-27T12:42:33Z","title_canon_sha256":"1b067227fca951ed0636f620440a57cd93a89442374630ab011dfb707de0a8df"},"schema_version":"1.0","source":{"id":"1702.08256","kind":"arxiv","version":2}},"canonical_sha256":"826a31ec283d8de030efe06f548ceb87defa89884ba126c87af2e82908bbcc81","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"826a31ec283d8de030efe06f548ceb87defa89884ba126c87af2e82908bbcc81","first_computed_at":"2026-05-18T00:39:28.640928Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:39:28.640928Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JFghcLTDu5irU/XQ61imsTm0wZVR9B2k642fJB6O0DvocElNwfmwskNMe6j9b8dFHzNpHcPqCdAfjGHB1fA7AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:39:28.641361Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.08256","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:51e0f322e807082ef218701088747427d14c302c0dca8c213cf34168f89beca9","sha256:6406a61cd92f150db561487e99c97874a4c9671867f6df94e0161e66f17004c2"],"state_sha256":"31f645c359c3e0735f123986c093271f075c19b2b6a32c80fd26c179096bb92e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lhbIwb01Xf4QlV0y+Vl/nAbw3eB0HZFDhw36ehfgFbg1wN+a0hXABfr8dhxT28Nu4lrbQmOK+mo+fV+WMjjxCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T07:55:07.802247Z","bundle_sha256":"88ad3ae317b40c557cbeee3063d879c22612636b34dc0e72a40de65df5221043"}}