{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TSZDV22UUU2NOBCY45YVT6A7SE","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":"8d2956ea76c28471b151fa6bc14a45752464a8c4ce777e2c5703edd9903f198a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-29T03:01:54Z","title_canon_sha256":"7acb8c473970678b83dee44efcbcc0c472d491f2cdf2cbabe92441476b282a4b"},"schema_version":"1.0","source":{"id":"1205.6251","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1205.6251","created_at":"2026-05-18T03:35:28Z"},{"alias_kind":"arxiv_version","alias_value":"1205.6251v2","created_at":"2026-05-18T03:35:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1205.6251","created_at":"2026-05-18T03:35:28Z"},{"alias_kind":"pith_short_12","alias_value":"TSZDV22UUU2N","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TSZDV22UUU2NOBCY","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TSZDV22U","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:c00c8789fb5597bb850bb12a7dc6284ef2d6709323a1fecd93dd60dabd859d8d","target":"graph","created_at":"2026-05-18T03:35:28Z","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":"For the first time, we report that a single crystal of (K-crypt)2Bi2 containing [Bi2]2+ displays ultra-broad near-infrared photoluminescence (PL) peaking at around 1190 nm and having a full width at the half maximum of 212 nm, stemming from the inherent electronic transitions of [Bi2]2+.The results not only add to the number of charged Bi species with luminescence, but also deepen the understanding of Bi-related near-infrared emission behavior and lead to the reconsideration of the fundamentally important issue of Bi-related PL mechanisms in some material systems such as bulk glasses, fibers, ","authors_text":"Hong-Tao Sun, Minoru Fujii, Miriam M. Gillett-Kunnath, Naoto Shirahata, Sa Chu Rong Gui, Slavi C. Sevov, Tetsu Yonezawa, Yoshio Sakka","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-29T03:01:54Z","title":"Ultra-broad near-infrared photoluminescence from crystalline (K-crypt)2Bi2 containing [Bi2]2- dimers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.6251","kind":"arxiv","version":2},"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":"sha256:5d441ecc34620b3b5914a973ac048e2cbb9615ecf85d1295d5cbf9c0c70601de","target":"record","created_at":"2026-05-18T03:35:28Z","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":"8d2956ea76c28471b151fa6bc14a45752464a8c4ce777e2c5703edd9903f198a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-05-29T03:01:54Z","title_canon_sha256":"7acb8c473970678b83dee44efcbcc0c472d491f2cdf2cbabe92441476b282a4b"},"schema_version":"1.0","source":{"id":"1205.6251","kind":"arxiv","version":2}},"canonical_sha256":"9cb23aeb54a534d70458e77159f81f91106f020f423a4e485882f3ff664392b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9cb23aeb54a534d70458e77159f81f91106f020f423a4e485882f3ff664392b0","first_computed_at":"2026-05-18T03:35:28.142728Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:35:28.142728Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Fqp5ehQsEzrvK0SVHi5DzGY4/YAVgeq+JeTEfXqXrtO4ljZO6JyRLaGpDqkdukDmX6buBXZ9omvC3iO0LrkKDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:35:28.143441Z","signed_message":"canonical_sha256_bytes"},"source_id":"1205.6251","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d441ecc34620b3b5914a973ac048e2cbb9615ecf85d1295d5cbf9c0c70601de","sha256:c00c8789fb5597bb850bb12a7dc6284ef2d6709323a1fecd93dd60dabd859d8d"],"state_sha256":"0312ac03f2a831c518c7b3814626675bb9254ca85271028459411fd650e15e06"}