{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:DQQUZG2Q7AJT7UEBS6CCONJD76","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":"61adecda69fdd53a843488a8e4a7f712f136e3301ab10d14d06036f1b7710605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-09-17T08:13:11Z","title_canon_sha256":"ac8dd3be8549d054e09046593248e483e1379411a946a556923fb5e47a388bf1"},"schema_version":"1.0","source":{"id":"1509.05157","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.05157","created_at":"2026-05-18T01:32:49Z"},{"alias_kind":"arxiv_version","alias_value":"1509.05157v1","created_at":"2026-05-18T01:32:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.05157","created_at":"2026-05-18T01:32:49Z"},{"alias_kind":"pith_short_12","alias_value":"DQQUZG2Q7AJT","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"DQQUZG2Q7AJT7UEB","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"DQQUZG2Q","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:6606daef69018b6a73a60e7874f1abdf2bf13f5921f9fa6a5e4cfad718b6d9ab","target":"graph","created_at":"2026-05-18T01:32:49Z","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":"Neutrinoless double-$\\beta$ decay is of fundamental importance for determining the neutrino mass. Although double electron ($\\beta^-\\beta^-$) decay is the most promising mode, in very recent years interest in double positron ($\\beta^+\\beta^+$) decay, positron emitting electron capture ($EC\\beta^+$), and double electron capture ($ECEC$) has been renewed. We present here results of a calculation of nuclear matrix elements for neutrinoless double-$\\beta^+$ decay and positron emitting electron capture within the framework of the microscopic interacting boson model (IBM-2) for $^{58}$Ni, $^{64}$Zn,","authors_text":"F. Iachello, J. Barea, J. Kotila","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-09-17T08:13:11Z","title":"Neutrinoless double positron decay and positron emitting electron capture in the interacting boson model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.05157","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":"sha256:67b0701d83cc58b6bcac091700077072881decc872c8bf683916bf86edcd2b18","target":"record","created_at":"2026-05-18T01:32:49Z","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":"61adecda69fdd53a843488a8e4a7f712f136e3301ab10d14d06036f1b7710605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2015-09-17T08:13:11Z","title_canon_sha256":"ac8dd3be8549d054e09046593248e483e1379411a946a556923fb5e47a388bf1"},"schema_version":"1.0","source":{"id":"1509.05157","kind":"arxiv","version":1}},"canonical_sha256":"1c214c9b50f8133fd0819784273523ffbc0b6fa388260f1c9999f517e6f15bc5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1c214c9b50f8133fd0819784273523ffbc0b6fa388260f1c9999f517e6f15bc5","first_computed_at":"2026-05-18T01:32:49.755772Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:32:49.755772Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZxRNP7qhvTbGVjvvgWg8sl5fNZcdeX4Drs1Zv2tDwETfzG4tfyNkRUTHmkq2mEjkGVaJbTY9GJF7ky2RJEuHCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:32:49.756498Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.05157","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67b0701d83cc58b6bcac091700077072881decc872c8bf683916bf86edcd2b18","sha256:6606daef69018b6a73a60e7874f1abdf2bf13f5921f9fa6a5e4cfad718b6d9ab"],"state_sha256":"7837f2d59f3aa8c5e2003080b25a75b295f2871837bdac89b54f5bfe91c10e09"}