{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:QOILM4PBT57E37QCO7OOBOCILY","short_pith_number":"pith:QOILM4PB","canonical_record":{"source":{"id":"1906.02805","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2019-06-06T20:53:27Z","cross_cats_sorted":[],"title_canon_sha256":"2736ebd3cc44b1292fdf5b5a1ff2ed4f17bc25cda1dbc2ece443352cd617842b","abstract_canon_sha256":"2ab23760e4f195eca729a6c8ab52313bd7d13022e824e9e76c81fea3cbaa47b0"},"schema_version":"1.0"},"canonical_sha256":"8390b671e19f7e4dfe0277dce0b8485e2738b4c898c676b63a4553c67bcf4f61","source":{"kind":"arxiv","id":"1906.02805","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.02805","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"arxiv_version","alias_value":"1906.02805v2","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.02805","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"pith_short_12","alias_value":"QOILM4PBT57E","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"pith_short_16","alias_value":"QOILM4PBT57E37QC","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"pith_short_8","alias_value":"QOILM4PB","created_at":"2026-07-05T00:25:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:QOILM4PBT57E37QCO7OOBOCILY","target":"record","payload":{"canonical_record":{"source":{"id":"1906.02805","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2019-06-06T20:53:27Z","cross_cats_sorted":[],"title_canon_sha256":"2736ebd3cc44b1292fdf5b5a1ff2ed4f17bc25cda1dbc2ece443352cd617842b","abstract_canon_sha256":"2ab23760e4f195eca729a6c8ab52313bd7d13022e824e9e76c81fea3cbaa47b0"},"schema_version":"1.0"},"canonical_sha256":"8390b671e19f7e4dfe0277dce0b8485e2738b4c898c676b63a4553c67bcf4f61","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:25:38.715490Z","signature_b64":"Gp1J7kwhLpmF1gQyJ35XOW/XPOJmnMmW4ApRbiZG/HM7s/GKXKTy+xDeqK4iOpiy7UZnz1QeJ3msLQKu/7fIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8390b671e19f7e4dfe0277dce0b8485e2738b4c898c676b63a4553c67bcf4f61","last_reissued_at":"2026-07-05T00:25:38.714980Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:25:38.714980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.02805","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":"2026-07-05T00:25:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nIFUkt9unMdJmXR+ZuAyjhkSignOOKpf+V86j5j3YczxBTrsJvorsLQ6Wibh+EDV7MZKrn2kmt9mA9rnF0SdAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:02:31.712778Z"},"content_sha256":"46b4859711cee9aa9dfdbfd1b09cddbdb9cafe339bc36288a2f9357bc02ff1b6","schema_version":"1.0","event_id":"sha256:46b4859711cee9aa9dfdbfd1b09cddbdb9cafe339bc36288a2f9357bc02ff1b6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:QOILM4PBT57E37QCO7OOBOCILY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at $\\sqrt{s} =$ 13 TeV","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"CMS Collaboration","submitted_at":"2019-06-06T20:53:27Z","abstract_excerpt":"A search for the standard model production of four top quarks (pp $\\to$ $\\mathrm{t\\bar{t}t\\bar{t}}$) is reported using single-lepton plus jets and opposite-sign dilepton plus jets signatures. Proton-proton collisions are recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV in a sample corresponding to an integrated luminosity of 35.8 fb$^{-1}$. A multivariate analysis exploiting global event and jet properties is used to discriminate $\\mathrm{t\\bar{t}t\\bar{t}}$ from $\\mathrm{t\\bar{t}}$ production. No significant deviation is observed from the predicted background. An "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.02805","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/1906.02805/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":"2026-07-05T00:25:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dtvcJLag3ppGL3d4OauJQBmmlVLrTycT1JO3PUPc6xnyUHJ4CWnWf5DmcIB/+7Qe0LdTYcNbs+ChcX1EFlAKDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T05:02:31.713273Z"},"content_sha256":"daa60da7844ac50567029f363e6e3849328bfe6ac0297ccdb0489c889d57bb9f","schema_version":"1.0","event_id":"sha256:daa60da7844ac50567029f363e6e3849328bfe6ac0297ccdb0489c889d57bb9f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QOILM4PBT57E37QCO7OOBOCILY/bundle.json","state_url":"https://pith.science/pith/QOILM4PBT57E37QCO7OOBOCILY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QOILM4PBT57E37QCO7OOBOCILY/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":"2026-08-15T05:02:31Z","links":{"resolver":"https://pith.science/pith/QOILM4PBT57E37QCO7OOBOCILY","bundle":"https://pith.science/pith/QOILM4PBT57E37QCO7OOBOCILY/bundle.json","state":"https://pith.science/pith/QOILM4PBT57E37QCO7OOBOCILY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QOILM4PBT57E37QCO7OOBOCILY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:QOILM4PBT57E37QCO7OOBOCILY","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":"2ab23760e4f195eca729a6c8ab52313bd7d13022e824e9e76c81fea3cbaa47b0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2019-06-06T20:53:27Z","title_canon_sha256":"2736ebd3cc44b1292fdf5b5a1ff2ed4f17bc25cda1dbc2ece443352cd617842b"},"schema_version":"1.0","source":{"id":"1906.02805","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.02805","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"arxiv_version","alias_value":"1906.02805v2","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.02805","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"pith_short_12","alias_value":"QOILM4PBT57E","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"pith_short_16","alias_value":"QOILM4PBT57E37QC","created_at":"2026-07-05T00:25:38Z"},{"alias_kind":"pith_short_8","alias_value":"QOILM4PB","created_at":"2026-07-05T00:25:38Z"}],"graph_snapshots":[{"event_id":"sha256:daa60da7844ac50567029f363e6e3849328bfe6ac0297ccdb0489c889d57bb9f","target":"graph","created_at":"2026-07-05T00:25:38Z","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/1906.02805/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A search for the standard model production of four top quarks (pp $\\to$ $\\mathrm{t\\bar{t}t\\bar{t}}$) is reported using single-lepton plus jets and opposite-sign dilepton plus jets signatures. Proton-proton collisions are recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV in a sample corresponding to an integrated luminosity of 35.8 fb$^{-1}$. A multivariate analysis exploiting global event and jet properties is used to discriminate $\\mathrm{t\\bar{t}t\\bar{t}}$ from $\\mathrm{t\\bar{t}}$ production. No significant deviation is observed from the predicted background. An ","authors_text":"CMS Collaboration","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2019-06-06T20:53:27Z","title":"Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at $\\sqrt{s} =$ 13 TeV"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.02805","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":"sha256:46b4859711cee9aa9dfdbfd1b09cddbdb9cafe339bc36288a2f9357bc02ff1b6","target":"record","created_at":"2026-07-05T00:25:38Z","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":"2ab23760e4f195eca729a6c8ab52313bd7d13022e824e9e76c81fea3cbaa47b0","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-ex","submitted_at":"2019-06-06T20:53:27Z","title_canon_sha256":"2736ebd3cc44b1292fdf5b5a1ff2ed4f17bc25cda1dbc2ece443352cd617842b"},"schema_version":"1.0","source":{"id":"1906.02805","kind":"arxiv","version":2}},"canonical_sha256":"8390b671e19f7e4dfe0277dce0b8485e2738b4c898c676b63a4553c67bcf4f61","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8390b671e19f7e4dfe0277dce0b8485e2738b4c898c676b63a4553c67bcf4f61","first_computed_at":"2026-07-05T00:25:38.714980Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:25:38.714980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gp1J7kwhLpmF1gQyJ35XOW/XPOJmnMmW4ApRbiZG/HM7s/GKXKTy+xDeqK4iOpiy7UZnz1QeJ3msLQKu/7fIAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:25:38.715490Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.02805","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46b4859711cee9aa9dfdbfd1b09cddbdb9cafe339bc36288a2f9357bc02ff1b6","sha256:daa60da7844ac50567029f363e6e3849328bfe6ac0297ccdb0489c889d57bb9f"],"state_sha256":"75e79e86cae518a701388b3641555048da42f4913e8150d98777a2087284798e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wl8uS44w6GkLpGolNTo9SJ4jrOzEEAVYmOW49umzH6IuwuN3MSmO1rfKGREfrawYnDGS71qd8Njy50UOcEX7BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T05:02:31.716948Z","bundle_sha256":"aea92913ce73473dfb90a2be6827763fbc76b823bc54757061296c7abd7386ab"}}