{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:STTSYE4GCO6VNRINOETSUZQOWP","short_pith_number":"pith:STTSYE4G","canonical_record":{"source":{"id":"1403.1790","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-03-07T16:05:09Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"9f0d19b91a4e472dd02ea1901e419bf90a3176148b05e2925585b5b86402bd61","abstract_canon_sha256":"39be65d8ff9e7fbc30f75571324d60110696013aff90994ae9bc50fbfe89d05c"},"schema_version":"1.0"},"canonical_sha256":"94e72c138613bd56c50d71272a660eb3d7cbd1c92f8736c5c8f546c3154bcd64","source":{"kind":"arxiv","id":"1403.1790","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.1790","created_at":"2026-05-18T02:39:48Z"},{"alias_kind":"arxiv_version","alias_value":"1403.1790v3","created_at":"2026-05-18T02:39:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1790","created_at":"2026-05-18T02:39:48Z"},{"alias_kind":"pith_short_12","alias_value":"STTSYE4GCO6V","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"STTSYE4GCO6VNRIN","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"STTSYE4G","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:STTSYE4GCO6VNRINOETSUZQOWP","target":"record","payload":{"canonical_record":{"source":{"id":"1403.1790","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-03-07T16:05:09Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"9f0d19b91a4e472dd02ea1901e419bf90a3176148b05e2925585b5b86402bd61","abstract_canon_sha256":"39be65d8ff9e7fbc30f75571324d60110696013aff90994ae9bc50fbfe89d05c"},"schema_version":"1.0"},"canonical_sha256":"94e72c138613bd56c50d71272a660eb3d7cbd1c92f8736c5c8f546c3154bcd64","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:48.362594Z","signature_b64":"I9rAYuZQxw/OXfLuI+u8IouiUl1RL8GSMp5eP1Jw0N7pqRBPIKg5qdh/ipEJuLbUI8hkOw3coh0jUxbQimazCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94e72c138613bd56c50d71272a660eb3d7cbd1c92f8736c5c8f546c3154bcd64","last_reissued_at":"2026-05-18T02:39:48.362125Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:48.362125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.1790","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:39:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"akoCm7UkzUXp5ZekzsaN01vMCjxNjCOa0+jIMr/YGkFXaZku7lTsJPs82J8Y4C6b8dLzhfyxr29uKI9zQdjXDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T00:14:31.442788Z"},"content_sha256":"0c3c333d56e2a6b6b4dfadaf84bf50e6dae3e941569c0cbdec409cf380ea1e1e","schema_version":"1.0","event_id":"sha256:0c3c333d56e2a6b6b4dfadaf84bf50e6dae3e941569c0cbdec409cf380ea1e1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:STTSYE4GCO6VNRINOETSUZQOWP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing the ttH signal through top-quark spin polarization effects at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Barbara Mele, Emidio Gabrielli, Rikkert Frederix, Sanjoy Biswas","submitted_at":"2014-03-07T16:05:09Z","abstract_excerpt":"We compare the impact of top-quark spin polarization effects in Higgs boson production in association with top-quark pairs and in corresponding backgrounds at the LHC. Because of the spin-zero nature of the Higgs boson, one expects, in the chiral limit for the top quarks, a substantial complementarity in $t\\bar t$ spin correlations for a Higgs decaying into fermions/gauge-bosons and $t\\bar{t}$ spin correlations for the corresponding irreducible $t\\bar t f\\bar f/VV$ backgrounds. Although top mass effects in $t\\bar t H$ production are in general dominant, and seriously spoil the chiral-limit exp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1790","kind":"arxiv","version":3},"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":"2026-05-18T02:39:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8G6PFvS67iqXieY4s/ZSRBWtZtQri8L2xoNEfx9tfasdV2HWC0Uyq9xfs0No8QQqYxHhEE6iPTfzhY8Iw3mvBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T00:14:31.443401Z"},"content_sha256":"e73d9e39a669845acdf4ab313290c9e8d5592658c68c62691657f5c6c7ceeb9e","schema_version":"1.0","event_id":"sha256:e73d9e39a669845acdf4ab313290c9e8d5592658c68c62691657f5c6c7ceeb9e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/STTSYE4GCO6VNRINOETSUZQOWP/bundle.json","state_url":"https://pith.science/pith/STTSYE4GCO6VNRINOETSUZQOWP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/STTSYE4GCO6VNRINOETSUZQOWP/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":"2026-06-12T00:14:31Z","links":{"resolver":"https://pith.science/pith/STTSYE4GCO6VNRINOETSUZQOWP","bundle":"https://pith.science/pith/STTSYE4GCO6VNRINOETSUZQOWP/bundle.json","state":"https://pith.science/pith/STTSYE4GCO6VNRINOETSUZQOWP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/STTSYE4GCO6VNRINOETSUZQOWP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:STTSYE4GCO6VNRINOETSUZQOWP","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":"39be65d8ff9e7fbc30f75571324d60110696013aff90994ae9bc50fbfe89d05c","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-03-07T16:05:09Z","title_canon_sha256":"9f0d19b91a4e472dd02ea1901e419bf90a3176148b05e2925585b5b86402bd61"},"schema_version":"1.0","source":{"id":"1403.1790","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.1790","created_at":"2026-05-18T02:39:48Z"},{"alias_kind":"arxiv_version","alias_value":"1403.1790v3","created_at":"2026-05-18T02:39:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1790","created_at":"2026-05-18T02:39:48Z"},{"alias_kind":"pith_short_12","alias_value":"STTSYE4GCO6V","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"STTSYE4GCO6VNRIN","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"STTSYE4G","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:e73d9e39a669845acdf4ab313290c9e8d5592658c68c62691657f5c6c7ceeb9e","target":"graph","created_at":"2026-05-18T02:39:48Z","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 compare the impact of top-quark spin polarization effects in Higgs boson production in association with top-quark pairs and in corresponding backgrounds at the LHC. Because of the spin-zero nature of the Higgs boson, one expects, in the chiral limit for the top quarks, a substantial complementarity in $t\\bar t$ spin correlations for a Higgs decaying into fermions/gauge-bosons and $t\\bar{t}$ spin correlations for the corresponding irreducible $t\\bar t f\\bar f/VV$ backgrounds. Although top mass effects in $t\\bar t H$ production are in general dominant, and seriously spoil the chiral-limit exp","authors_text":"Barbara Mele, Emidio Gabrielli, Rikkert Frederix, Sanjoy Biswas","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-03-07T16:05:09Z","title":"Enhancing the ttH signal through top-quark spin polarization effects at the LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1790","kind":"arxiv","version":3},"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":"sha256:0c3c333d56e2a6b6b4dfadaf84bf50e6dae3e941569c0cbdec409cf380ea1e1e","target":"record","created_at":"2026-05-18T02:39:48Z","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":"39be65d8ff9e7fbc30f75571324d60110696013aff90994ae9bc50fbfe89d05c","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2014-03-07T16:05:09Z","title_canon_sha256":"9f0d19b91a4e472dd02ea1901e419bf90a3176148b05e2925585b5b86402bd61"},"schema_version":"1.0","source":{"id":"1403.1790","kind":"arxiv","version":3}},"canonical_sha256":"94e72c138613bd56c50d71272a660eb3d7cbd1c92f8736c5c8f546c3154bcd64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"94e72c138613bd56c50d71272a660eb3d7cbd1c92f8736c5c8f546c3154bcd64","first_computed_at":"2026-05-18T02:39:48.362125Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:48.362125Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I9rAYuZQxw/OXfLuI+u8IouiUl1RL8GSMp5eP1Jw0N7pqRBPIKg5qdh/ipEJuLbUI8hkOw3coh0jUxbQimazCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:48.362594Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.1790","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c3c333d56e2a6b6b4dfadaf84bf50e6dae3e941569c0cbdec409cf380ea1e1e","sha256:e73d9e39a669845acdf4ab313290c9e8d5592658c68c62691657f5c6c7ceeb9e"],"state_sha256":"eeaa76031346823e454e2d57c359e96e6385d74779d339af58ceb6f1df03f80d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"27g7v1I2kveDABokfVKcpnOCzTBZEnBprKtokMhZFMWrWzRs7ZVjBFWc+mqIIj9MjpehM1mk7ePOEIIPmaMRCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T00:14:31.445891Z","bundle_sha256":"e774c92fd62834376efabc7422b4e0afe4ac9b25a55a828a3b6fc67e8d1f4bda"}}