{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:6MCKLLLIGSOLWFLEFCCLGUTMF7","short_pith_number":"pith:6MCKLLLI","schema_version":"1.0","canonical_sha256":"f304a5ad68349cbb15642884b3526c2fd1450b0860826c6f1e66fa2b805774ab","source":{"kind":"arxiv","id":"1210.3844","version":2},"attestation_state":"computed","paper":{"title":"Observation of Z decays to four leptons with the CMS detector at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"CMS Collaboration","submitted_at":"2012-10-14T21:12:33Z","abstract_excerpt":"The first observation of the Z boson decaying to four leptons in proton-proton collisions is presented. The analyzed data set corresponds to an integrated luminosity of 5.02 inverse femtobarns at sqrt(s) = 7 TeV collected by the CMS detector at the Large Hadron Collider. A pronounced resonance peak, with a statistical significance of 9.7 sigma, is observed in the distribution of the invariant mass of four leptons (electrons and/or muons) with mass and width consistent with expectations for Z boson decays. The branching fraction and cross section reported here are defined by phase space restric"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1210.3844","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ex","submitted_at":"2012-10-14T21:12:33Z","cross_cats_sorted":[],"title_canon_sha256":"143d8a1bd9bf0924d20cb6d53a58e45985f8ff114b81e0b1e6efbce4cb8b5bf1","abstract_canon_sha256":"c3d0ed8fb663651411ffb65d2bc619ef592412bd494babd455bbfdeea7cce869"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:33:37.434409Z","signature_b64":"PQbudV/px2kfLFf1ZLz82ndKHE/PF9KWr8LY3mG2qccrjY4peizEZheS3wUVT6crFdr4kxaBGnGow6iECs2vCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f304a5ad68349cbb15642884b3526c2fd1450b0860826c6f1e66fa2b805774ab","last_reissued_at":"2026-05-18T03:33:37.433670Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:33:37.433670Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Observation of Z decays to four leptons with the CMS detector at the LHC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"CMS Collaboration","submitted_at":"2012-10-14T21:12:33Z","abstract_excerpt":"The first observation of the Z boson decaying to four leptons in proton-proton collisions is presented. The analyzed data set corresponds to an integrated luminosity of 5.02 inverse femtobarns at sqrt(s) = 7 TeV collected by the CMS detector at the Large Hadron Collider. A pronounced resonance peak, with a statistical significance of 9.7 sigma, is observed in the distribution of the invariant mass of four leptons (electrons and/or muons) with mass and width consistent with expectations for Z boson decays. The branching fraction and cross section reported here are defined by phase space restric"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3844","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1210.3844","created_at":"2026-05-18T03:33:37.433783+00:00"},{"alias_kind":"arxiv_version","alias_value":"1210.3844v2","created_at":"2026-05-18T03:33:37.433783+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3844","created_at":"2026-05-18T03:33:37.433783+00:00"},{"alias_kind":"pith_short_12","alias_value":"6MCKLLLIGSOL","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_16","alias_value":"6MCKLLLIGSOLWFLE","created_at":"2026-05-18T12:26:56.085431+00:00"},{"alias_kind":"pith_short_8","alias_value":"6MCKLLLI","created_at":"2026-05-18T12:26:56.085431+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.25158","citing_title":"Studies of Z $\\to$ 4$\\ell$ decays in proton-proton collisions at $\\sqrt{s}$ = 8 and 13 TeV","ref_index":1,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7","json":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7.json","graph_json":"https://pith.science/api/pith-number/6MCKLLLIGSOLWFLEFCCLGUTMF7/graph.json","events_json":"https://pith.science/api/pith-number/6MCKLLLIGSOLWFLEFCCLGUTMF7/events.json","paper":"https://pith.science/paper/6MCKLLLI"},"agent_actions":{"view_html":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7","download_json":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7.json","view_paper":"https://pith.science/paper/6MCKLLLI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1210.3844&json=true","fetch_graph":"https://pith.science/api/pith-number/6MCKLLLIGSOLWFLEFCCLGUTMF7/graph.json","fetch_events":"https://pith.science/api/pith-number/6MCKLLLIGSOLWFLEFCCLGUTMF7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7/action/storage_attestation","attest_author":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7/action/author_attestation","sign_citation":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7/action/citation_signature","submit_replication":"https://pith.science/pith/6MCKLLLIGSOLWFLEFCCLGUTMF7/action/replication_record"}},"created_at":"2026-05-18T03:33:37.433783+00:00","updated_at":"2026-05-18T03:33:37.433783+00:00"}