{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:TSZUFOWQIYBVLIKQJW4FMNIX34","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":"23c099cdb8971bc0f1e5b0e8a0b616e35f07b20f7576ed72d618c6459f6e9438","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-05-02T14:24:22Z","title_canon_sha256":"20472829d176734f4daa62b0ff3e6275555003e224a4a58e827af5d9899db3d5"},"schema_version":"1.0","source":{"id":"1505.00345","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.00345","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"arxiv_version","alias_value":"1505.00345v2","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.00345","created_at":"2026-05-18T01:31:39Z"},{"alias_kind":"pith_short_12","alias_value":"TSZUFOWQIYBV","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_16","alias_value":"TSZUFOWQIYBVLIKQ","created_at":"2026-05-18T12:29:42Z"},{"alias_kind":"pith_short_8","alias_value":"TSZUFOWQ","created_at":"2026-05-18T12:29:42Z"}],"graph_snapshots":[{"event_id":"sha256:f3d54e6fc2ea72634d5c7ae542a31842175d8d1d143527917fc52380247d8751","target":"graph","created_at":"2026-05-18T01:31:39Z","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":"Single-crystal silicon wafers were hyperdoped respectively by sulfur, selenium, and tellurium element using ion implantation and nanosecond laser melting. The hyperdoping of such chalcogen elements endowed the treated silicon with a strong and wide sub-bandgap light absorptance. When these hyperdoped silicons were thermally annealed even at low temperatures (such as 200~400 oC), however, this extra sub-bandgap absorptance began to attenuate. In order to explain this attenuation of absorptance, alternatively, we consider it corresponding to a chemical decomposition reaction from optically absor","authors_text":"Hezhu Shao, Ke-Fan Wang, Kong Liu, Shengchun Qu, Yuanxu Wang, Zhanguo Wang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-05-02T14:24:22Z","title":"Possible atomic structures for the sub-bandgap absorption of chalcogen hyperdoped silicon"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.00345","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":"sha256:319e50328005a2efba61d7414843b7348455abdb3db15b6febd35ff240e41af6","target":"record","created_at":"2026-05-18T01:31:39Z","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":"23c099cdb8971bc0f1e5b0e8a0b616e35f07b20f7576ed72d618c6459f6e9438","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/3.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-05-02T14:24:22Z","title_canon_sha256":"20472829d176734f4daa62b0ff3e6275555003e224a4a58e827af5d9899db3d5"},"schema_version":"1.0","source":{"id":"1505.00345","kind":"arxiv","version":2}},"canonical_sha256":"9cb342bad0460355a1504db8563517df04ff79f8400f147025ec2a16f0137390","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9cb342bad0460355a1504db8563517df04ff79f8400f147025ec2a16f0137390","first_computed_at":"2026-05-18T01:31:39.349376Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:31:39.349376Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9Sj2sN7O/Bh6f6E+LWoSHKhOkAy0ojTvgvyblcZT1VXrASxcLqzy7XRfNK0AK5L8BPmRufr2+vLNZx8ZIyHrCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:31:39.349967Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.00345","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:319e50328005a2efba61d7414843b7348455abdb3db15b6febd35ff240e41af6","sha256:f3d54e6fc2ea72634d5c7ae542a31842175d8d1d143527917fc52380247d8751"],"state_sha256":"c9e37590364146bf6c66b69b28b4a0d23e298a68065d22258ba814719be42564"}