{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:S6X5J4DA23ZGO2TUPRDPPLTR4Y","short_pith_number":"pith:S6X5J4DA","canonical_record":{"source":{"id":"1807.00416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-07-01T23:35:37Z","cross_cats_sorted":[],"title_canon_sha256":"7628e917c5586c824e6c50353cdf543479300586b31f38301aacee4e0021de71","abstract_canon_sha256":"1d37a757b071946b700be456bd25044a595f570b568938a12ec37dc4fa37671c"},"schema_version":"1.0"},"canonical_sha256":"97afd4f060d6f2676a747c46f7ae71e6379893d62e5e856b4e9361eb080f5ec6","source":{"kind":"arxiv","id":"1807.00416","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.00416","created_at":"2026-05-18T00:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"1807.00416v1","created_at":"2026-05-18T00:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.00416","created_at":"2026-05-18T00:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"S6X5J4DA23ZG","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"S6X5J4DA23ZGO2TU","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"S6X5J4DA","created_at":"2026-05-18T12:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:S6X5J4DA23ZGO2TUPRDPPLTR4Y","target":"record","payload":{"canonical_record":{"source":{"id":"1807.00416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-07-01T23:35:37Z","cross_cats_sorted":[],"title_canon_sha256":"7628e917c5586c824e6c50353cdf543479300586b31f38301aacee4e0021de71","abstract_canon_sha256":"1d37a757b071946b700be456bd25044a595f570b568938a12ec37dc4fa37671c"},"schema_version":"1.0"},"canonical_sha256":"97afd4f060d6f2676a747c46f7ae71e6379893d62e5e856b4e9361eb080f5ec6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:09:24.158046Z","signature_b64":"DZl9vJ/19ij5BVvZOxD6WOKX6NjV2yscmBgAbV+fIpVj3rwT68OqRLf7TU2R9j8f7ataDPjhb54JWoStX6JTBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"97afd4f060d6f2676a747c46f7ae71e6379893d62e5e856b4e9361eb080f5ec6","last_reissued_at":"2026-05-18T00:09:24.157336Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:09:24.157336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.00416","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:09:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vv5S9G8IL1OKRpuLRmUe/jYkoe3VH61qGGFwZj2UCexgqBcnjg4WV7mC5YxMQ48ENTL0p5FprC1XGvMsJnpMAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T17:54:59.639072Z"},"content_sha256":"7479f7b41d35525e07e684eddff733b63f8ef1421b4c89625f6ad41a172429a2","schema_version":"1.0","event_id":"sha256:7479f7b41d35525e07e684eddff733b63f8ef1421b4c89625f6ad41a172429a2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:S6X5J4DA23ZGO2TUPRDPPLTR4Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electronic Structure Calculation and Superconductivity in $\\lambda$-(BETS)$_{2}$GaCl$_{4}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Hirohito Aizawa, Hitoshi Seo, Kazuhiko Kuroki, Takashi Koretsune","submitted_at":"2018-07-01T23:35:37Z","abstract_excerpt":"Quasi-two-dimensional molecular conductor $\\lambda$-(BETS)$_2$GaCl$_4$ shows superconductivity (SC) below 5.5K, neighboring the dimer-type Mott insulating phase. To elucidate the origin of SC and its gap function, we carry out first-principles band calculation and derive a four-band tight-binding model from the maximally localized Wannier orbitals. Considering the spin-fluctuation-mediated mechanism by adding the Hubbard $U$-term to the model, we analyze the SC gap function by applying the random phase approximation. We show that the SC gap changes its sign four times along the Fermi surface ("},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00416","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:09:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3pFMnCZu2th7v7M2LJnA/KksAvBqvT5/R1nVnkdNgDMyXbi29YppXLYGNx9Q+ClYzzyScQIQu7Gejm+JGcdNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T17:54:59.639688Z"},"content_sha256":"ce281fcf6ccfc92c1b81ee06ae31627d0e77bf300a8189b4636174573eaa834b","schema_version":"1.0","event_id":"sha256:ce281fcf6ccfc92c1b81ee06ae31627d0e77bf300a8189b4636174573eaa834b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y/bundle.json","state_url":"https://pith.science/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-07T17:54:59Z","links":{"resolver":"https://pith.science/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y","bundle":"https://pith.science/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y/bundle.json","state":"https://pith.science/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S6X5J4DA23ZGO2TUPRDPPLTR4Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:S6X5J4DA23ZGO2TUPRDPPLTR4Y","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":"1d37a757b071946b700be456bd25044a595f570b568938a12ec37dc4fa37671c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-07-01T23:35:37Z","title_canon_sha256":"7628e917c5586c824e6c50353cdf543479300586b31f38301aacee4e0021de71"},"schema_version":"1.0","source":{"id":"1807.00416","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.00416","created_at":"2026-05-18T00:09:24Z"},{"alias_kind":"arxiv_version","alias_value":"1807.00416v1","created_at":"2026-05-18T00:09:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.00416","created_at":"2026-05-18T00:09:24Z"},{"alias_kind":"pith_short_12","alias_value":"S6X5J4DA23ZG","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"S6X5J4DA23ZGO2TU","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"S6X5J4DA","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:ce281fcf6ccfc92c1b81ee06ae31627d0e77bf300a8189b4636174573eaa834b","target":"graph","created_at":"2026-05-18T00:09:24Z","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":"Quasi-two-dimensional molecular conductor $\\lambda$-(BETS)$_2$GaCl$_4$ shows superconductivity (SC) below 5.5K, neighboring the dimer-type Mott insulating phase. To elucidate the origin of SC and its gap function, we carry out first-principles band calculation and derive a four-band tight-binding model from the maximally localized Wannier orbitals. Considering the spin-fluctuation-mediated mechanism by adding the Hubbard $U$-term to the model, we analyze the SC gap function by applying the random phase approximation. We show that the SC gap changes its sign four times along the Fermi surface (","authors_text":"Hirohito Aizawa, Hitoshi Seo, Kazuhiko Kuroki, Takashi Koretsune","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-07-01T23:35:37Z","title":"Electronic Structure Calculation and Superconductivity in $\\lambda$-(BETS)$_{2}$GaCl$_{4}$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00416","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":"sha256:7479f7b41d35525e07e684eddff733b63f8ef1421b4c89625f6ad41a172429a2","target":"record","created_at":"2026-05-18T00:09:24Z","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":"1d37a757b071946b700be456bd25044a595f570b568938a12ec37dc4fa37671c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-07-01T23:35:37Z","title_canon_sha256":"7628e917c5586c824e6c50353cdf543479300586b31f38301aacee4e0021de71"},"schema_version":"1.0","source":{"id":"1807.00416","kind":"arxiv","version":1}},"canonical_sha256":"97afd4f060d6f2676a747c46f7ae71e6379893d62e5e856b4e9361eb080f5ec6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"97afd4f060d6f2676a747c46f7ae71e6379893d62e5e856b4e9361eb080f5ec6","first_computed_at":"2026-05-18T00:09:24.157336Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:09:24.157336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DZl9vJ/19ij5BVvZOxD6WOKX6NjV2yscmBgAbV+fIpVj3rwT68OqRLf7TU2R9j8f7ataDPjhb54JWoStX6JTBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:09:24.158046Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.00416","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7479f7b41d35525e07e684eddff733b63f8ef1421b4c89625f6ad41a172429a2","sha256:ce281fcf6ccfc92c1b81ee06ae31627d0e77bf300a8189b4636174573eaa834b"],"state_sha256":"8a4f1e61214ecbf1e78a732b13d424804e34d22ff79188e86f98431e167340c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MpIMrVrmIOrpmT33/tQsdPV+lixpWhPhV3Rbu1svEF29WNHgcs646LIZfBb4W3nNn138CGWom32lNpipYbLlBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T17:54:59.643149Z","bundle_sha256":"d30e1166f2517c793dffc0ed09df82a362db66eb13d17f4ee745a99af59f48e2"}}