{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:7W7TYUWFMB3P5GETALSCT2OZLJ","short_pith_number":"pith:7W7TYUWF","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"},"canonical_sha256":"fdbf3c52c56076fe989302e429e9d95a59f5a85ea8f07f5fc42c366ce56c039f","source":{"kind":"arxiv","id":"1110.3138","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.3138","created_at":"2026-05-18T02:00:12Z"},{"alias_kind":"arxiv_version","alias_value":"1110.3138v1","created_at":"2026-05-18T02:00:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.3138","created_at":"2026-05-18T02:00:12Z"},{"alias_kind":"pith_short_12","alias_value":"7W7TYUWFMB3P","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7W7TYUWFMB3P5GET","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7W7TYUWF","created_at":"2026-05-18T12:26:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:7W7TYUWFMB3P5GETALSCT2OZLJ","target":"record","payload":{"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"},"canonical_sha256":"fdbf3c52c56076fe989302e429e9d95a59f5a85ea8f07f5fc42c366ce56c039f","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"},"source_kind":"arxiv","source_id":"1110.3138","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aOv21pye/CpMzw045exPZEHvRnSuT9rOAGuZd+fnmQ0vFb3WMsNj+o7oe9EoK5ooMUnfE8/f9dil/Q5wmOlGDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:50:27.038590Z"},"content_sha256":"7d2622c94552e28c520f1907980c8fbb245a622889360b7c0a47074557520ffb","schema_version":"1.0","event_id":"sha256:7d2622c94552e28c520f1907980c8fbb245a622889360b7c0a47074557520ffb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:7W7TYUWFMB3P5GETALSCT2OZLJ","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:00:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zHLTFSa+V8SpUyufwQIR2Zwfk/2XuAgMB+YcdzIekEeFS7UP3DNfJR0z4X5LRrdHd7PRtHGp1vF7GIhyUiioDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T16:50:27.039263Z"},"content_sha256":"58fd5977562ec27cdd49faf38dac1eab6b322775a4ed855276dbbf548fb63da9","schema_version":"1.0","event_id":"sha256:58fd5977562ec27cdd49faf38dac1eab6b322775a4ed855276dbbf548fb63da9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/bundle.json","state_url":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/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":"2026-05-27T16:50:27Z","links":{"resolver":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ","bundle":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/bundle.json","state":"https://pith.science/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7W7TYUWFMB3P5GETALSCT2OZLJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:7W7TYUWFMB3P5GETALSCT2OZLJ","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":"bdc9f708803159fac0045a3281ff8b2242769e42ef83096d461561110f5bb4c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-10-14T08:04:03Z","title_canon_sha256":"b7ac0790c6dc8f188566ad02a1bb89207403793807f34cc5b42de1976cdb894c"},"schema_version":"1.0","source":{"id":"1110.3138","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1110.3138","created_at":"2026-05-18T02:00:12Z"},{"alias_kind":"arxiv_version","alias_value":"1110.3138v1","created_at":"2026-05-18T02:00:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1110.3138","created_at":"2026-05-18T02:00:12Z"},{"alias_kind":"pith_short_12","alias_value":"7W7TYUWFMB3P","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_16","alias_value":"7W7TYUWFMB3P5GET","created_at":"2026-05-18T12:26:22Z"},{"alias_kind":"pith_short_8","alias_value":"7W7TYUWF","created_at":"2026-05-18T12:26:22Z"}],"graph_snapshots":[{"event_id":"sha256:58fd5977562ec27cdd49faf38dac1eab6b322775a4ed855276dbbf548fb63da9","target":"graph","created_at":"2026-05-18T02:00:12Z","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":"$^{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)%.","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","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-10-14T08:04:03Z","title":"First measurement of the partial widths of $^{209}$Bi decay to the ground and to the first excited states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1110.3138","kind":"arxiv","version":1},"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":"sha256:7d2622c94552e28c520f1907980c8fbb245a622889360b7c0a47074557520ffb","target":"record","created_at":"2026-05-18T02:00:12Z","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":"bdc9f708803159fac0045a3281ff8b2242769e42ef83096d461561110f5bb4c3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-ex","submitted_at":"2011-10-14T08:04:03Z","title_canon_sha256":"b7ac0790c6dc8f188566ad02a1bb89207403793807f34cc5b42de1976cdb894c"},"schema_version":"1.0","source":{"id":"1110.3138","kind":"arxiv","version":1}},"canonical_sha256":"fdbf3c52c56076fe989302e429e9d95a59f5a85ea8f07f5fc42c366ce56c039f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdbf3c52c56076fe989302e429e9d95a59f5a85ea8f07f5fc42c366ce56c039f","first_computed_at":"2026-05-18T02:00:12.425099Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:12.425099Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6/qQtJVLto31XtSa/JhhvbsD7j6h2NvPlK7uCnq31kEkQfxGx3iJI23m+ELdkYi/hT5mzDy5/102CpvrYOxoDg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:12.425743Z","signed_message":"canonical_sha256_bytes"},"source_id":"1110.3138","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7d2622c94552e28c520f1907980c8fbb245a622889360b7c0a47074557520ffb","sha256:58fd5977562ec27cdd49faf38dac1eab6b322775a4ed855276dbbf548fb63da9"],"state_sha256":"fabe20db4157a20144c5333ce41ddcf0845f236cf4115706b238ef28489ff1bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mDFt1kwDui8AsI7VLrXO8U4xe7xfTNsLxhPayX0l/ZjPV9xYZOAZQLG24DdogKTVo+MJb87HDrg7Hc05lIzwAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T16:50:27.043396Z","bundle_sha256":"f02efa3d14b40a8f232fca85057b647d8c8cef232d1637142ffcb1ed0aeb0f4a"}}