{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:IWTEBKJQXPHXWQWEXZJCC2FC7V","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":"9baf2d0c97b08482a740f827c7e00292afe335d1ea70ff3733d8f365d4b81d83","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-09-24T12:57:56Z","title_canon_sha256":"261d3ce26dddf4c91585c9c18e395bc85c1ecc00d6b39a53a4d1d6a6aefde98a"},"schema_version":"1.0","source":{"id":"1209.5253","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.5253","created_at":"2026-05-18T01:54:19Z"},{"alias_kind":"arxiv_version","alias_value":"1209.5253v3","created_at":"2026-05-18T01:54:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.5253","created_at":"2026-05-18T01:54:19Z"},{"alias_kind":"pith_short_12","alias_value":"IWTEBKJQXPHX","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_16","alias_value":"IWTEBKJQXPHXWQWE","created_at":"2026-05-18T12:27:09Z"},{"alias_kind":"pith_short_8","alias_value":"IWTEBKJQ","created_at":"2026-05-18T12:27:09Z"}],"graph_snapshots":[{"event_id":"sha256:fbd16e862fe88d852416e05abb644859b2129c812ded8e7eeabdab3516caf815","target":"graph","created_at":"2026-05-18T01:54:19Z","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 study the newly discovered Pt phosphides $A$Pt$_3$P ($A$=Sr, Ca, La) [ T. Takayama et al. Phys. Rev. Lett. 108, 237001 (2012)] using first-principles calculations and Migdal-Eliashberg theory. Given the remarkable agreement with the experiment, we exclude the charge-density wave scenario proposed by previous first-principles calculations, and give conclusive answers concerning the superconducting state in these materials. The pairing increases from La to Ca and Sr due to changes in the electron-phonon matrix elements and low-frequency phonons. Although we find that all three compounds are w","authors_text":"Alaska Subedi, Lilia Boeri, Luciano Ortenzi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-09-24T12:57:56Z","title":"Electron-phonon superconductivity in $A$Pt$_3$P compounds: from weak to strong coupling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.5253","kind":"arxiv","version":3},"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:b6b19838c18d7428f3306a888ea862e1b61b46ec8956086ba5b8864c6f56b971","target":"record","created_at":"2026-05-18T01:54:19Z","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":"9baf2d0c97b08482a740f827c7e00292afe335d1ea70ff3733d8f365d4b81d83","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2012-09-24T12:57:56Z","title_canon_sha256":"261d3ce26dddf4c91585c9c18e395bc85c1ecc00d6b39a53a4d1d6a6aefde98a"},"schema_version":"1.0","source":{"id":"1209.5253","kind":"arxiv","version":3}},"canonical_sha256":"45a640a930bbcf7b42c4be522168a2fd64d7780bcdca0197c97b8316b560f451","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"45a640a930bbcf7b42c4be522168a2fd64d7780bcdca0197c97b8316b560f451","first_computed_at":"2026-05-18T01:54:19.568647Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:19.568647Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"e4uvHfskHBBzkpZ9es+T0jYebqlaruKHnDXPc6rryh3/BlbzATykBDlCdqWC6Tou5md+71kk1UV4epGZVEqqAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:19.569151Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.5253","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b6b19838c18d7428f3306a888ea862e1b61b46ec8956086ba5b8864c6f56b971","sha256:fbd16e862fe88d852416e05abb644859b2129c812ded8e7eeabdab3516caf815"],"state_sha256":"8868473468119a5884352378b05ba0d299679274793f31aceddc3f9a9bb0d8a0"}