{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:2FTBTBGI3WLUYJAA7OZGDFZPE7","short_pith_number":"pith:2FTBTBGI","canonical_record":{"source":{"id":"2105.13851","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-05-28T14:07:20Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"8d260c1b655d4136a69158d970940833fff28b620880b3067a73278680b38d54","abstract_canon_sha256":"1ac9152bab987f8159756dc36839f593bdd9536fdf538a16e698c800809f19ef"},"schema_version":"1.0"},"canonical_sha256":"d1661984c8dd974c2400fbb261972f27d6b57732061d3ee573f54fb39fc036ff","source":{"kind":"arxiv","id":"2105.13851","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.13851","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"arxiv_version","alias_value":"2105.13851v2","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.13851","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"pith_short_12","alias_value":"2FTBTBGI3WLU","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"pith_short_16","alias_value":"2FTBTBGI3WLUYJAA","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"pith_short_8","alias_value":"2FTBTBGI","created_at":"2026-07-05T03:48:29Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:2FTBTBGI3WLUYJAA7OZGDFZPE7","target":"record","payload":{"canonical_record":{"source":{"id":"2105.13851","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-05-28T14:07:20Z","cross_cats_sorted":["hep-ex"],"title_canon_sha256":"8d260c1b655d4136a69158d970940833fff28b620880b3067a73278680b38d54","abstract_canon_sha256":"1ac9152bab987f8159756dc36839f593bdd9536fdf538a16e698c800809f19ef"},"schema_version":"1.0"},"canonical_sha256":"d1661984c8dd974c2400fbb261972f27d6b57732061d3ee573f54fb39fc036ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:48:29.450084Z","signature_b64":"o3v9Oqv3S0sj7X45eUddKHMnt2im7ICHRaCGTrGl6sgEs92hiFpiXWgRf3tkZBiLX0DwML4TaC6W/WB6aB7QDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d1661984c8dd974c2400fbb261972f27d6b57732061d3ee573f54fb39fc036ff","last_reissued_at":"2026-07-05T03:48:29.449538Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:48:29.449538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.13851","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":"2026-07-05T03:48:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8Ynt/0LeLn7rfmnFihz4D34QZXOAkq6LJ7dp9tzQORgaEkCQdJ37tNnGu084OD03meACVkR06y9ymk1WM24TAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T02:56:21.132010Z"},"content_sha256":"a76e3fed49ffd53acdd0def444dac940dd8e8828ab082ff17307c491911e70a2","schema_version":"1.0","event_id":"sha256:a76e3fed49ffd53acdd0def444dac940dd8e8828ab082ff17307c491911e70a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:2FTBTBGI3WLUYJAA7OZGDFZPE7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Heavy neutral leptons in effective field theory and the high-luminosity LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Arsenii Titov, Giovanna Cottin, Juan Carlos Helo, Martin Hirsch, Zeren Simon Wang","submitted_at":"2021-05-28T14:07:20Z","abstract_excerpt":"Heavy neutral leptons (HNLs) with masses around the electroweak scale are expected to be rather long-lived particles, as a result of the observed smallness of the active neutrino masses. In this work, we study long-lived HNLs in $N_R$SMEFT, a Standard Model (SM) extension with singlet fermions to which we add non-renormalizable operators up to dimension-6. Operators which contain two HNLs can lead to a sizable enhancement of the production cross sections, compared to the minimal case where HNLs are produced only via their mixing with the SM neutrinos. We calculate the expected sensitivities fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.13851","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/2105.13851/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":"2026-07-05T03:48:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MslfnY+5JSPRqnv7K1NC7yf88HyCYBh4WyFg3WImYAkK17O+j4gxREHihnYQ65QbyD8Zpl92BFIucRX5Ik2VDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T02:56:21.132329Z"},"content_sha256":"4d90d2e53c68a74929ee5d8bdf56da491c2de334a09f45d980c0a6e79f9a8b3b","schema_version":"1.0","event_id":"sha256:4d90d2e53c68a74929ee5d8bdf56da491c2de334a09f45d980c0a6e79f9a8b3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7/bundle.json","state_url":"https://pith.science/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7/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":"2026-08-02T02:56:21Z","links":{"resolver":"https://pith.science/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7","bundle":"https://pith.science/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7/bundle.json","state":"https://pith.science/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2FTBTBGI3WLUYJAA7OZGDFZPE7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:2FTBTBGI3WLUYJAA7OZGDFZPE7","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":"1ac9152bab987f8159756dc36839f593bdd9536fdf538a16e698c800809f19ef","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-05-28T14:07:20Z","title_canon_sha256":"8d260c1b655d4136a69158d970940833fff28b620880b3067a73278680b38d54"},"schema_version":"1.0","source":{"id":"2105.13851","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.13851","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"arxiv_version","alias_value":"2105.13851v2","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.13851","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"pith_short_12","alias_value":"2FTBTBGI3WLU","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"pith_short_16","alias_value":"2FTBTBGI3WLUYJAA","created_at":"2026-07-05T03:48:29Z"},{"alias_kind":"pith_short_8","alias_value":"2FTBTBGI","created_at":"2026-07-05T03:48:29Z"}],"graph_snapshots":[{"event_id":"sha256:4d90d2e53c68a74929ee5d8bdf56da491c2de334a09f45d980c0a6e79f9a8b3b","target":"graph","created_at":"2026-07-05T03:48:29Z","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/2105.13851/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Heavy neutral leptons (HNLs) with masses around the electroweak scale are expected to be rather long-lived particles, as a result of the observed smallness of the active neutrino masses. In this work, we study long-lived HNLs in $N_R$SMEFT, a Standard Model (SM) extension with singlet fermions to which we add non-renormalizable operators up to dimension-6. Operators which contain two HNLs can lead to a sizable enhancement of the production cross sections, compared to the minimal case where HNLs are produced only via their mixing with the SM neutrinos. We calculate the expected sensitivities fo","authors_text":"Arsenii Titov, Giovanna Cottin, Juan Carlos Helo, Martin Hirsch, Zeren Simon Wang","cross_cats":["hep-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-05-28T14:07:20Z","title":"Heavy neutral leptons in effective field theory and the high-luminosity LHC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.13851","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:a76e3fed49ffd53acdd0def444dac940dd8e8828ab082ff17307c491911e70a2","target":"record","created_at":"2026-07-05T03:48:29Z","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":"1ac9152bab987f8159756dc36839f593bdd9536fdf538a16e698c800809f19ef","cross_cats_sorted":["hep-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2021-05-28T14:07:20Z","title_canon_sha256":"8d260c1b655d4136a69158d970940833fff28b620880b3067a73278680b38d54"},"schema_version":"1.0","source":{"id":"2105.13851","kind":"arxiv","version":2}},"canonical_sha256":"d1661984c8dd974c2400fbb261972f27d6b57732061d3ee573f54fb39fc036ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1661984c8dd974c2400fbb261972f27d6b57732061d3ee573f54fb39fc036ff","first_computed_at":"2026-07-05T03:48:29.449538Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:48:29.449538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o3v9Oqv3S0sj7X45eUddKHMnt2im7ICHRaCGTrGl6sgEs92hiFpiXWgRf3tkZBiLX0DwML4TaC6W/WB6aB7QDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:48:29.450084Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.13851","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a76e3fed49ffd53acdd0def444dac940dd8e8828ab082ff17307c491911e70a2","sha256:4d90d2e53c68a74929ee5d8bdf56da491c2de334a09f45d980c0a6e79f9a8b3b"],"state_sha256":"40a2985e16919a80f7662c0bcc828f76c208227863fbf2bf62239cda22fe23fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HEP16DUE4jU6tOl1PeN3yRIc+KPaIOo9maTT6y3wAXY6PsZKo0PU7V781RzToCozi/JVV+91CrxEvQO0f+zVAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T02:56:21.136267Z","bundle_sha256":"f64eb72219d886c35371a6bbb2fe7849df229fe68c4456db25b57a3e9803ff93"}}