{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:7UOM7LQ3OLG4GEKDF5ID6NSJOY","short_pith_number":"pith:7UOM7LQ3","canonical_record":{"source":{"id":"1510.04821","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-10-16T09:24:17Z","cross_cats_sorted":[],"title_canon_sha256":"e5cf47a03ca2d3be146aafa1499a7fbc62436ebf08b90e53123e7f43266f4651","abstract_canon_sha256":"33197f17482f581ffce58ef6ce2b6f319aea729b4768d4fa89e02cbeedffa993"},"schema_version":"1.0"},"canonical_sha256":"fd1ccfae1b72cdc311432f503f364976198aef571e200fd6ac9d47c606e22760","source":{"kind":"arxiv","id":"1510.04821","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.04821","created_at":"2026-05-18T01:25:11Z"},{"alias_kind":"arxiv_version","alias_value":"1510.04821v2","created_at":"2026-05-18T01:25:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04821","created_at":"2026-05-18T01:25:11Z"},{"alias_kind":"pith_short_12","alias_value":"7UOM7LQ3OLG4","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7UOM7LQ3OLG4GEKD","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7UOM7LQ3","created_at":"2026-05-18T12:29:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:7UOM7LQ3OLG4GEKDF5ID6NSJOY","target":"record","payload":{"canonical_record":{"source":{"id":"1510.04821","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-10-16T09:24:17Z","cross_cats_sorted":[],"title_canon_sha256":"e5cf47a03ca2d3be146aafa1499a7fbc62436ebf08b90e53123e7f43266f4651","abstract_canon_sha256":"33197f17482f581ffce58ef6ce2b6f319aea729b4768d4fa89e02cbeedffa993"},"schema_version":"1.0"},"canonical_sha256":"fd1ccfae1b72cdc311432f503f364976198aef571e200fd6ac9d47c606e22760","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:25:11.215881Z","signature_b64":"Wk5cCrOjxably45nb4xqpS7rlQnpGTJ2QuUMaGHB4qZnQWToqWrcaB5z5DIL412j8SruhEPuYONH97DkFLxiDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd1ccfae1b72cdc311432f503f364976198aef571e200fd6ac9d47c606e22760","last_reissued_at":"2026-05-18T01:25:11.215397Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:25:11.215397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1510.04821","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":"2026-05-18T01:25:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1hST19wZATYoAvFcrr13UFh7OjfrUnq7z4ZtFd61Zui+twU5EnMTAP8ghwhu1X/SprrrCX2AYATD4LRI6i+bBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T15:47:02.967817Z"},"content_sha256":"21c0fce86c5a633943c2bbdbe4215639f542763e6d8cc7800da51ee18b61d0f0","schema_version":"1.0","event_id":"sha256:21c0fce86c5a633943c2bbdbe4215639f542763e6d8cc7800da51ee18b61d0f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:7UOM7LQ3OLG4GEKDF5ID6NSJOY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Vampire and the FOOL","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LO","authors_text":"Andrei Voronkov, Evgenii Kotelnikov, Giles Reger, Laura Kov\\'acs","submitted_at":"2015-10-16T09:24:17Z","abstract_excerpt":"This paper presents new features recently implemented in the theorem prover Vampire, namely support for first-order logic with a first class boolean sort (FOOL) and polymorphic arrays. In addition to having a first class boolean sort, FOOL also contains if-then-else and let-in expressions. We argue that presented extensions facilitate reasoning-based program analysis, both by increasing the expressivity of first-order reasoners and by gains in efficiency."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04821","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":"2026-05-18T01:25:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"68jffLUU4BJVVoDQEZw9gryxofWHVljMfSS2u9o25F39FTmnnBiOs21TWyxmYCFXcBnenipWX5Amc2yGLT1UAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-03T15:47:02.968160Z"},"content_sha256":"bfe04241754b2ac5ee674417d4246773ffedd9ff0318bff7ff7fe6cc386a364a","schema_version":"1.0","event_id":"sha256:bfe04241754b2ac5ee674417d4246773ffedd9ff0318bff7ff7fe6cc386a364a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY/bundle.json","state_url":"https://pith.science/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY/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":"2026-07-03T15:47:02Z","links":{"resolver":"https://pith.science/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY","bundle":"https://pith.science/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY/bundle.json","state":"https://pith.science/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7UOM7LQ3OLG4GEKDF5ID6NSJOY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:7UOM7LQ3OLG4GEKDF5ID6NSJOY","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":"33197f17482f581ffce58ef6ce2b6f319aea729b4768d4fa89e02cbeedffa993","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-10-16T09:24:17Z","title_canon_sha256":"e5cf47a03ca2d3be146aafa1499a7fbc62436ebf08b90e53123e7f43266f4651"},"schema_version":"1.0","source":{"id":"1510.04821","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.04821","created_at":"2026-05-18T01:25:11Z"},{"alias_kind":"arxiv_version","alias_value":"1510.04821v2","created_at":"2026-05-18T01:25:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.04821","created_at":"2026-05-18T01:25:11Z"},{"alias_kind":"pith_short_12","alias_value":"7UOM7LQ3OLG4","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_16","alias_value":"7UOM7LQ3OLG4GEKD","created_at":"2026-05-18T12:29:10Z"},{"alias_kind":"pith_short_8","alias_value":"7UOM7LQ3","created_at":"2026-05-18T12:29:10Z"}],"graph_snapshots":[{"event_id":"sha256:bfe04241754b2ac5ee674417d4246773ffedd9ff0318bff7ff7fe6cc386a364a","target":"graph","created_at":"2026-05-18T01:25:11Z","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":"This paper presents new features recently implemented in the theorem prover Vampire, namely support for first-order logic with a first class boolean sort (FOOL) and polymorphic arrays. In addition to having a first class boolean sort, FOOL also contains if-then-else and let-in expressions. We argue that presented extensions facilitate reasoning-based program analysis, both by increasing the expressivity of first-order reasoners and by gains in efficiency.","authors_text":"Andrei Voronkov, Evgenii Kotelnikov, Giles Reger, Laura Kov\\'acs","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-10-16T09:24:17Z","title":"The Vampire and the FOOL"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.04821","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":"sha256:21c0fce86c5a633943c2bbdbe4215639f542763e6d8cc7800da51ee18b61d0f0","target":"record","created_at":"2026-05-18T01:25:11Z","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":"33197f17482f581ffce58ef6ce2b6f319aea729b4768d4fa89e02cbeedffa993","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LO","submitted_at":"2015-10-16T09:24:17Z","title_canon_sha256":"e5cf47a03ca2d3be146aafa1499a7fbc62436ebf08b90e53123e7f43266f4651"},"schema_version":"1.0","source":{"id":"1510.04821","kind":"arxiv","version":2}},"canonical_sha256":"fd1ccfae1b72cdc311432f503f364976198aef571e200fd6ac9d47c606e22760","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd1ccfae1b72cdc311432f503f364976198aef571e200fd6ac9d47c606e22760","first_computed_at":"2026-05-18T01:25:11.215397Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:25:11.215397Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Wk5cCrOjxably45nb4xqpS7rlQnpGTJ2QuUMaGHB4qZnQWToqWrcaB5z5DIL412j8SruhEPuYONH97DkFLxiDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:25:11.215881Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.04821","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:21c0fce86c5a633943c2bbdbe4215639f542763e6d8cc7800da51ee18b61d0f0","sha256:bfe04241754b2ac5ee674417d4246773ffedd9ff0318bff7ff7fe6cc386a364a"],"state_sha256":"7783bb91eb5add97e5ca6c890a4eef35122fe496695e049ef8781ca55ba4c517"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rHlfbVLRtASGAOnYMjAHFbMkQy/aG74gKQW7Mg7LpKncd/8RoRIixhIlpkp+HkGpiGcFnDzU3k8mlBWFHkntAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-03T15:47:02.970045Z","bundle_sha256":"1a62e7a98cecd93b25aea86bfee191e26514840fd94e61ede433523289d102e1"}}