{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:EYU4VJLWSP4CS3EP2IXDZTH5AD","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":"e3d7eb70f05bb1305b838b25c9ba1fc3464d7adb6741ec8c8d532382ef293ab9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-11-14T14:42:11Z","title_canon_sha256":"ee0f1fabd1c82e6d3f921eeb01ddc9ee4f7e073e9456849512d3fbe9e3b76dbb"},"schema_version":"1.0","source":{"id":"1811.05814","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.05814","created_at":"2026-05-17T23:55:19Z"},{"alias_kind":"arxiv_version","alias_value":"1811.05814v1","created_at":"2026-05-17T23:55:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.05814","created_at":"2026-05-17T23:55:19Z"},{"alias_kind":"pith_short_12","alias_value":"EYU4VJLWSP4C","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"EYU4VJLWSP4CS3EP","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"EYU4VJLW","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:1f5f8b5ab74c5c68ad54ed874074f8c16539fc00b2be87226f8662a55bd84255","target":"graph","created_at":"2026-05-17T23:55:19Z","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 influence of carbon-ion irradiation on the superconducting critical properties of MgB$_2$ thin films. MgB$_2$ films of two thicknesses viz. 400 nm (MB400nm) and 800 nm (MB800nm) were irradiated by 350 keV C ions having a wide range of fluence, 1 x 10$^{13}$ - 1 x 10$^{15}$ C atoms/cm$^2$. The mean projected range ($R_p$) of 350 keV C ions in MgB$_2$ is 560 nm, thus the energetic C ions will pass through the MB400nm, whereas the ions will remain into the MB800nm. The superconducting transition temperature ($T_c$), upper critical field ($H_{c2}$), $c$-axis lattice parameter, a","authors_text":"Duong Pham, Jonghan Song, Seung-Ku Son, Soon-Gil Jung, Tuson Park, Weon Cheol Lim, Won Nam Kang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-11-14T14:42:11Z","title":"Influence of carbon-ion irradiation on the superconducting critical properties of MgB$_2$ thin films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.05814","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":"sha256:8c213577d0c931df8031d410aee2e8f4f8e00b4b541f866299a4e3e55157ad45","target":"record","created_at":"2026-05-17T23:55:19Z","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":"e3d7eb70f05bb1305b838b25c9ba1fc3464d7adb6741ec8c8d532382ef293ab9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-11-14T14:42:11Z","title_canon_sha256":"ee0f1fabd1c82e6d3f921eeb01ddc9ee4f7e073e9456849512d3fbe9e3b76dbb"},"schema_version":"1.0","source":{"id":"1811.05814","kind":"arxiv","version":1}},"canonical_sha256":"2629caa57693f8296c8fd22e3cccfd00f0f53183156c8e82510781507050a8b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2629caa57693f8296c8fd22e3cccfd00f0f53183156c8e82510781507050a8b0","first_computed_at":"2026-05-17T23:55:19.149600Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:19.149600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lE9UKJ7GDuaT41WsNdCdcOcjPvaIqO2hkCklFcS8tHPBeQ9bEai7O0ckS4ebp76XW2bkMDMGCVhzAyF5vjh6Ag==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:19.150072Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.05814","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c213577d0c931df8031d410aee2e8f4f8e00b4b541f866299a4e3e55157ad45","sha256:1f5f8b5ab74c5c68ad54ed874074f8c16539fc00b2be87226f8662a55bd84255"],"state_sha256":"aaeddf615f391cda293a25fd6219b8ff404f0e7c4f7b3faf1876536e87462f67"}