{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:4KMGY5M7HFPYKK6RVYM753Z2KD","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":"348215bc1950ccc02ac6a4729acb2071e8d8ac4ba34b9b356ea894f4320442a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-11-14T13:47:25Z","title_canon_sha256":"7a02f921cf5b0f3e43166332f7ac695fe1c453222a7d494b5097cf9c9a7a6cc6"},"schema_version":"1.0","source":{"id":"1311.3502","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1311.3502","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"arxiv_version","alias_value":"1311.3502v1","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1311.3502","created_at":"2026-05-18T02:18:23Z"},{"alias_kind":"pith_short_12","alias_value":"4KMGY5M7HFPY","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_16","alias_value":"4KMGY5M7HFPYKK6R","created_at":"2026-05-18T12:27:34Z"},{"alias_kind":"pith_short_8","alias_value":"4KMGY5M7","created_at":"2026-05-18T12:27:34Z"}],"graph_snapshots":[{"event_id":"sha256:5201144422a979112fa033ee259a96914d4104b10bebce1e0884b93a24520ff1","target":"graph","created_at":"2026-05-18T02:18:23Z","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":"We investigate the basic quantum mechanical processes behind non-proportional response of scintillators to incident radiation responsible for reduced resolution. For this purpose, we conduct a comparative first principles study of quasiparticle spectra on the basis of the $G_0W_0$ approximation as well as absorption spectra and excitonic properties by solving the Bethe-Salpeter equation for two important systems, NaI and SrI$_2$. The former is a standard scintillator material with well-documented non-proportionality while the latter has recently been found to exhibit a very proportional respon","authors_text":"A. Schleife, B. Sadigh, D. {\\AA}berg, P. Erhart","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-11-14T13:47:25Z","title":"Quasi-particle spectra, absorption spectra, and excitonic properties of sodium iodide and strontium iodide from many-body perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1311.3502","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":"sha256:0fd0debff1b028ef4f7458214582e892ea9b33b80c1c677a12b806398d378558","target":"record","created_at":"2026-05-18T02:18:23Z","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":"348215bc1950ccc02ac6a4729acb2071e8d8ac4ba34b9b356ea894f4320442a2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-11-14T13:47:25Z","title_canon_sha256":"7a02f921cf5b0f3e43166332f7ac695fe1c453222a7d494b5097cf9c9a7a6cc6"},"schema_version":"1.0","source":{"id":"1311.3502","kind":"arxiv","version":1}},"canonical_sha256":"e2986c759f395f852bd1ae19feef3a50f9ab1090a6df666e06e8a22cf72df8f1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e2986c759f395f852bd1ae19feef3a50f9ab1090a6df666e06e8a22cf72df8f1","first_computed_at":"2026-05-18T02:18:23.930225Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:18:23.930225Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jfGTGwyxnUzOmK6jezBKHms3HihI3mROm1xFf07O0vwyM97MrNYbeHRdTLRG2jlEaAfGMBXoRBd2x4z7zroDBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:18:23.930761Z","signed_message":"canonical_sha256_bytes"},"source_id":"1311.3502","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0fd0debff1b028ef4f7458214582e892ea9b33b80c1c677a12b806398d378558","sha256:5201144422a979112fa033ee259a96914d4104b10bebce1e0884b93a24520ff1"],"state_sha256":"6c79b4f9bc7c8064434a1a4d2c397e26a8862fe430c8125286631e8794867da6"}