{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:7XY6SSPIW2OJCHMUTVEZPNIKC6","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":"c51bbbe4e984658a6b01dbbec1f591598bb023a0f31e3dd628b566c0b602cef4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-05-29T02:02:14Z","title_canon_sha256":"97cff3c8ba47c78df5cd43ca1a259f3d1a9bbdb13abf01442f8d3fe727f7df7e"},"schema_version":"1.0","source":{"id":"2505.22992","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.22992","created_at":"2026-07-05T11:11:53Z"},{"alias_kind":"arxiv_version","alias_value":"2505.22992v1","created_at":"2026-07-05T11:11:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.22992","created_at":"2026-07-05T11:11:53Z"},{"alias_kind":"pith_short_12","alias_value":"7XY6SSPIW2OJ","created_at":"2026-07-05T11:11:53Z"},{"alias_kind":"pith_short_16","alias_value":"7XY6SSPIW2OJCHMU","created_at":"2026-07-05T11:11:53Z"},{"alias_kind":"pith_short_8","alias_value":"7XY6SSPI","created_at":"2026-07-05T11:11:53Z"}],"graph_snapshots":[{"event_id":"sha256:89f4d2fb4be993bfa47dd3cd696ab14b73a7f8576bd1b86ff301b0eb0e1b91c5","target":"graph","created_at":"2026-07-05T11:11:53Z","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/2505.22992/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Type Ia supernovae (SNe Ia) are powered by the radioactive decay of isotopes such as $^{56}$Ni and $^{56}$Co, making their $\\gamma$-ray spectra useful probes of the explosion mechanism and ejecta structure. Accurate interpretation of $\\gamma$-ray observables, including line ratios and continuum fluxes, requires a detailed understanding of the microphysical processes that shape the spectra. One such process is positronium formation during electron-positron annihilation, which can redistribute flux from the 511 keV line into the surrounding continuum. To assess the impact of positronium on the e","authors_text":"Andreas Fl\\\"ors, Andrew Fullard, Anirban Dutta, Cecelia Powers, J. T. O'Brien, Or Graur, Stuart A Sim, Wolfgang Kerzendorf","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-05-29T02:02:14Z","title":"Effect of positronium on the $\\gamma$-ray spectra and energy deposition in Type Ia supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.22992","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:cdb21b5369fc8129b9b028c104e6a4e42aa3acfad3c712e5ab4c77c624e6b97a","target":"record","created_at":"2026-07-05T11:11:53Z","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":"c51bbbe4e984658a6b01dbbec1f591598bb023a0f31e3dd628b566c0b602cef4","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-05-29T02:02:14Z","title_canon_sha256":"97cff3c8ba47c78df5cd43ca1a259f3d1a9bbdb13abf01442f8d3fe727f7df7e"},"schema_version":"1.0","source":{"id":"2505.22992","kind":"arxiv","version":1}},"canonical_sha256":"fdf1e949e8b69c911d949d4997b50a178c67f7736d3216b0da88927868bb1d84","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdf1e949e8b69c911d949d4997b50a178c67f7736d3216b0da88927868bb1d84","first_computed_at":"2026-07-05T11:11:53.202323Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:11:53.202323Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/CeJGLGq7Zo//0jrZ33eNZwmZPOZjFET7q2PHXZqMHCf15U+MX/5Q5VK+eiS4aPO4AdVU68EyyUlJUkFHZsMAg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:11:53.202815Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.22992","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cdb21b5369fc8129b9b028c104e6a4e42aa3acfad3c712e5ab4c77c624e6b97a","sha256:89f4d2fb4be993bfa47dd3cd696ab14b73a7f8576bd1b86ff301b0eb0e1b91c5"],"state_sha256":"48e65e94ae336dc81fb53594b742d080e38c23adecb777bbe5d4247f56aeedd5"}