{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:7W7TYUWFMB3P5GETALSCT2OZLJ","short_pith_number":"pith:7W7TYUWF","schema_version":"1.0","canonical_sha256":"fdbf3c52c56076fe989302e429e9d95a59f5a85ea8f07f5fc42c366ce56c039f","source":{"kind":"arxiv","id":"1110.3138","version":1},"attestation_state":"computed","paper":{"title":"First measurement of the partial widths of $^{209}$Bi decay to the ground and to the first excited states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A.Giachero, A.Nucciotti, C.Brofferio, C.Bucci, C.Gotti, C.Maiano, E.Ferri, E.Previtali, G.Pessina, J.W.Beeman, L.Cardani, L.Gironi, L.Pattavina, L.Zanotti, M.Biassoni, M.Carrettoni, M.Clemenza, M.Pavan, M.Sisti, O.Cremonesi, P.Gorla, S.Capelli, S.Pirro","submitted_at":"2011-10-14T08:04:03Z","abstract_excerpt":"$^{209}$Bi alpha decay to the ground and to the first excited state have been contemporary observed for the first time with a large BGO scintillating bolometer. The half-life of $^{209}$Bi is determined to be $\\tau_{1/2}$=(2.01$\\pm$0.08)$\\cdot10^{19}$ years while the branching ratio for the ground-state to ground-state transition is (98.8$\\pm$0.3)%."},"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":"1110.3138","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-10-14T08:04:03Z","cross_cats_sorted":[],"title_canon_sha256":"b7ac0790c6dc8f188566ad02a1bb89207403793807f34cc5b42de1976cdb894c","abstract_canon_sha256":"bdc9f708803159fac0045a3281ff8b2242769e42ef83096d461561110f5bb4c3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:12.425743Z","signature_b64":"6/qQtJVLto31XtSa/JhhvbsD7j6h2NvPlK7uCnq31kEkQfxGx3iJI23m+ELdkYi/hT5mzDy5/102CpvrYOxoDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fdbf3c52c56076fe989302e429e9d95a59f5a85ea8f07f5fc42c366ce56c039f","last_reissued_at":"2026-05-18T02:00:12.425099Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:12.425099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First measurement of the partial widths of $^{209}$Bi decay to the ground and to the first excited states","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A.Giachero, A.Nucciotti, C.Brofferio, C.Bucci, C.Gotti, C.Maiano, E.Ferri, E.Previtali, G.Pessina, J.W.Beeman, L.Cardani, L.Gironi, L.Pattavina, L.Zanotti, M.Biassoni, M.Carrettoni, M.Clemenza, M.Pavan, M.Sisti, O.Cremonesi, P.Gorla, S.Capelli, S.Pirro","submitted_at":"2011-10-14T08:04:03Z","abstract_excerpt":"$^{209}$Bi alpha decay to the ground and to the first excited state have been contemporary observed for the first time with a large BGO scintillating bolometer. The half-life of $^{209}$Bi is determined to be $\\tau_{1/2}$=(2.01$\\pm$0.08)$\\cdot10^{19}$ years while the branching ratio for the ground-state to ground-state transition is (98.8$\\pm$0.3)%."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.3138","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1110.3138","created_at":"2026-05-18T02:00:12.425178+00:00"},{"alias_kind":"arxiv_version","alias_value":"1110.3138v1","created_at":"2026-05-18T02:00:12.425178+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.3138","created_at":"2026-05-18T02:00:12.425178+00:00"},{"alias_kind":"pith_short_12","alias_value":"7W7TYUWFMB3P","created_at":"2026-05-18T12:26:22.705136+00:00"},{"alias_kind":"pith_short_16","alias_value":"7W7TYUWFMB3P5GET","created_at":"2026-05-18T12:26:22.705136+00:00"},{"alias_kind":"pith_short_8","alias_value":"7W7TYUWF","created_at":"2026-05-18T12:26:22.705136+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ","json":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ.json","graph_json":"https://pith.science/api/pith-number/7W7TYUWFMB3P5GETALSCT2OZLJ/graph.json","events_json":"https://pith.science/api/pith-number/7W7TYUWFMB3P5GETALSCT2OZLJ/events.json","paper":"https://pith.science/paper/7W7TYUWF"},"agent_actions":{"view_html":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ","download_json":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ.json","view_paper":"https://pith.science/paper/7W7TYUWF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1110.3138&json=true","fetch_graph":"https://pith.science/api/pith-number/7W7TYUWFMB3P5GETALSCT2OZLJ/graph.json","fetch_events":"https://pith.science/api/pith-number/7W7TYUWFMB3P5GETALSCT2OZLJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/action/storage_attestation","attest_author":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/action/author_attestation","sign_citation":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/action/citation_signature","submit_replication":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/action/replication_record"}},"created_at":"2026-05-18T02:00:12.425178+00:00","updated_at":"2026-05-18T02:00:12.425178+00:00"}