{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:RJJC2N5GGN4IEKGUMNDULFOTDR","short_pith_number":"pith:RJJC2N5G","canonical_record":{"source":{"id":"1309.4962","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2013-09-19T13:22:31Z","cross_cats_sorted":["cs.DL","cs.LG","cs.LO","cs.MS"],"title_canon_sha256":"84394df7681674bae02c8a4940f1d491711f816c1fbb17044c3b5c00a72852e8","abstract_canon_sha256":"36e2896252673004c7845285deda789afaa0208079953fe9b80ce5e06fcdfc35"},"schema_version":"1.0"},"canonical_sha256":"8a522d37a633788228d463474595d31c637a75d93f366f84107134792873787e","source":{"kind":"arxiv","id":"1309.4962","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4962","created_at":"2026-05-18T03:12:49Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4962v1","created_at":"2026-05-18T03:12:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4962","created_at":"2026-05-18T03:12:49Z"},{"alias_kind":"pith_short_12","alias_value":"RJJC2N5GGN4I","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RJJC2N5GGN4IEKGU","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RJJC2N5G","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:RJJC2N5GGN4IEKGUMNDULFOTDR","target":"record","payload":{"canonical_record":{"source":{"id":"1309.4962","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2013-09-19T13:22:31Z","cross_cats_sorted":["cs.DL","cs.LG","cs.LO","cs.MS"],"title_canon_sha256":"84394df7681674bae02c8a4940f1d491711f816c1fbb17044c3b5c00a72852e8","abstract_canon_sha256":"36e2896252673004c7845285deda789afaa0208079953fe9b80ce5e06fcdfc35"},"schema_version":"1.0"},"canonical_sha256":"8a522d37a633788228d463474595d31c637a75d93f366f84107134792873787e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:12:49.193747Z","signature_b64":"Fdxpscx6wx7klh/i3BVkRrBuI8vhZ5vkI0SHQihMcla8CftIQQUMChn5/WfWH9i9i0PqFErRqy1h5ZyqJLEMCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8a522d37a633788228d463474595d31c637a75d93f366f84107134792873787e","last_reissued_at":"2026-05-18T03:12:49.193300Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:12:49.193300Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.4962","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:12:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZeC4Kj/v+jpMrFEWIUNoPsiiQpqkFfPP7QsXf1MVDP5V0Twp1ObkNF8Mq1F0kV/ydD+JwO/p+OuTuolBe5DnBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:31:42.235798Z"},"content_sha256":"ee6fc536e8e25221c58f83199ba41058c121704d7874b48ff5e740834de1bae4","schema_version":"1.0","event_id":"sha256:ee6fc536e8e25221c58f83199ba41058c121704d7874b48ff5e740834de1bae4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:RJJC2N5GGN4IEKGUMNDULFOTDR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"HOL(y)Hammer: Online ATP Service for HOL Light","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DL","cs.LG","cs.LO","cs.MS"],"primary_cat":"cs.AI","authors_text":"Cezary Kaliszyk, Josef Urban","submitted_at":"2013-09-19T13:22:31Z","abstract_excerpt":"HOL(y)Hammer is an online AI/ATP service for formal (computer-understandable) mathematics encoded in the HOL Light system. The service allows its users to upload and automatically process an arbitrary formal development (project) based on HOL Light, and to attack arbitrary conjectures that use the concepts defined in some of the uploaded projects. For that, the service uses several automated reasoning systems combined with several premise selection methods trained on all the project proofs. The projects that are readily available on the server for such query answering include the recent versio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4962","kind":"arxiv","version":1},"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":"2026-05-18T03:12:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P8uNQsY3/IYpeM5fGFxfSlUlRVuIZP3xMXakiqM/Q8fQzqxjSBZKJZa3CexA53DaE4AeYuKuz/TYEkfLyaJ/Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T10:31:42.236148Z"},"content_sha256":"7180b189f9382efee5f2cbb124dda5d88c8a860ee72500f671a185c90f17b6f1","schema_version":"1.0","event_id":"sha256:7180b189f9382efee5f2cbb124dda5d88c8a860ee72500f671a185c90f17b6f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RJJC2N5GGN4IEKGUMNDULFOTDR/bundle.json","state_url":"https://pith.science/pith/RJJC2N5GGN4IEKGUMNDULFOTDR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RJJC2N5GGN4IEKGUMNDULFOTDR/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":"2026-05-28T10:31:42Z","links":{"resolver":"https://pith.science/pith/RJJC2N5GGN4IEKGUMNDULFOTDR","bundle":"https://pith.science/pith/RJJC2N5GGN4IEKGUMNDULFOTDR/bundle.json","state":"https://pith.science/pith/RJJC2N5GGN4IEKGUMNDULFOTDR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RJJC2N5GGN4IEKGUMNDULFOTDR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:RJJC2N5GGN4IEKGUMNDULFOTDR","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":"36e2896252673004c7845285deda789afaa0208079953fe9b80ce5e06fcdfc35","cross_cats_sorted":["cs.DL","cs.LG","cs.LO","cs.MS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2013-09-19T13:22:31Z","title_canon_sha256":"84394df7681674bae02c8a4940f1d491711f816c1fbb17044c3b5c00a72852e8"},"schema_version":"1.0","source":{"id":"1309.4962","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.4962","created_at":"2026-05-18T03:12:49Z"},{"alias_kind":"arxiv_version","alias_value":"1309.4962v1","created_at":"2026-05-18T03:12:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.4962","created_at":"2026-05-18T03:12:49Z"},{"alias_kind":"pith_short_12","alias_value":"RJJC2N5GGN4I","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"RJJC2N5GGN4IEKGU","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"RJJC2N5G","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:7180b189f9382efee5f2cbb124dda5d88c8a860ee72500f671a185c90f17b6f1","target":"graph","created_at":"2026-05-18T03:12:49Z","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":"HOL(y)Hammer is an online AI/ATP service for formal (computer-understandable) mathematics encoded in the HOL Light system. The service allows its users to upload and automatically process an arbitrary formal development (project) based on HOL Light, and to attack arbitrary conjectures that use the concepts defined in some of the uploaded projects. For that, the service uses several automated reasoning systems combined with several premise selection methods trained on all the project proofs. The projects that are readily available on the server for such query answering include the recent versio","authors_text":"Cezary Kaliszyk, Josef Urban","cross_cats":["cs.DL","cs.LG","cs.LO","cs.MS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2013-09-19T13:22:31Z","title":"HOL(y)Hammer: Online ATP Service for HOL Light"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.4962","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:ee6fc536e8e25221c58f83199ba41058c121704d7874b48ff5e740834de1bae4","target":"record","created_at":"2026-05-18T03:12:49Z","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":"36e2896252673004c7845285deda789afaa0208079953fe9b80ce5e06fcdfc35","cross_cats_sorted":["cs.DL","cs.LG","cs.LO","cs.MS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.AI","submitted_at":"2013-09-19T13:22:31Z","title_canon_sha256":"84394df7681674bae02c8a4940f1d491711f816c1fbb17044c3b5c00a72852e8"},"schema_version":"1.0","source":{"id":"1309.4962","kind":"arxiv","version":1}},"canonical_sha256":"8a522d37a633788228d463474595d31c637a75d93f366f84107134792873787e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8a522d37a633788228d463474595d31c637a75d93f366f84107134792873787e","first_computed_at":"2026-05-18T03:12:49.193300Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:12:49.193300Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fdxpscx6wx7klh/i3BVkRrBuI8vhZ5vkI0SHQihMcla8CftIQQUMChn5/WfWH9i9i0PqFErRqy1h5ZyqJLEMCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:12:49.193747Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.4962","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee6fc536e8e25221c58f83199ba41058c121704d7874b48ff5e740834de1bae4","sha256:7180b189f9382efee5f2cbb124dda5d88c8a860ee72500f671a185c90f17b6f1"],"state_sha256":"b285b55ff141f8b53f6d3e94371824855890e9802f17bfbef7fd42c7552f7cd4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GUDcsbTqKh2qM5SEPWzNaF8DOnc21CG7gVgs952TBAw8aBZ6um0uCUflSL60ADMpCu5UlDnsP0WdCde31jWZAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T10:31:42.238139Z","bundle_sha256":"c9edc0b4e4e6fe78d46bbea3201eeae72c0660b8afbda07a7fc8639badbac628"}}