{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ET3HFRRF4KFTEHG6BZCFH253GH","short_pith_number":"pith:ET3HFRRF","canonical_record":{"source":{"id":"1809.00754","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-09-04T00:34:35Z","cross_cats_sorted":[],"title_canon_sha256":"0b63d62141b50d5968a0e748d3ba5fe5188c5ba6db4feb96bbde0109008f75e3","abstract_canon_sha256":"22dbeabb33aa1f41730ed239fcc25ff1e00a6319ee6d19b49c65ca0d53298ede"},"schema_version":"1.0"},"canonical_sha256":"24f672c625e28b321cde0e4453ebbb31f4e83b9c5e6c23882bcde14af8547eed","source":{"kind":"arxiv","id":"1809.00754","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00754","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00754v1","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00754","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"pith_short_12","alias_value":"ET3HFRRF4KFT","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"ET3HFRRF4KFTEHG6","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"ET3HFRRF","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ET3HFRRF4KFTEHG6BZCFH253GH","target":"record","payload":{"canonical_record":{"source":{"id":"1809.00754","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-09-04T00:34:35Z","cross_cats_sorted":[],"title_canon_sha256":"0b63d62141b50d5968a0e748d3ba5fe5188c5ba6db4feb96bbde0109008f75e3","abstract_canon_sha256":"22dbeabb33aa1f41730ed239fcc25ff1e00a6319ee6d19b49c65ca0d53298ede"},"schema_version":"1.0"},"canonical_sha256":"24f672c625e28b321cde0e4453ebbb31f4e83b9c5e6c23882bcde14af8547eed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:32.566403Z","signature_b64":"/7U+d08JFrxO398t+MzoPHMVjPh/5NOcreqfNN/ooE1zQOOE5GE4sQDf+dMc+U/7EITD45R1gBXfAAlhw4mDCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24f672c625e28b321cde0e4453ebbb31f4e83b9c5e6c23882bcde14af8547eed","last_reissued_at":"2026-05-18T00:06:32.565872Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:32.565872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1809.00754","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":"2026-05-18T00:06:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CUX6LeGMZV1fLpV5lE9xxqViswDPK8XQ4ZB3+dzPOS1PgmsRXQkpNCTPwi6Wt9vyoIGNXrAp3bee2xiE2Bn+Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:51:46.450499Z"},"content_sha256":"a93852f6b70a20f0d24794072baaae9d58c91a8743a2e2bb5de80070f6f84da2","schema_version":"1.0","event_id":"sha256:a93852f6b70a20f0d24794072baaae9d58c91a8743a2e2bb5de80070f6f84da2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ET3HFRRF4KFTEHG6BZCFH253GH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity in Hexagonal BaPtAs: SrPtSb- and YPtAs-type Structures with Ordered Honeycomb Network","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Hiromi Ota, Kazunori Fujimura, Kazutaka Kudo, Minoru Nohara, Shin-ya Ayukawa, Takaaki Takeuchi, Yuki Saito","submitted_at":"2018-09-04T00:34:35Z","abstract_excerpt":"The crystal structure and superconductivity of hexagonal BaPtAs are reported. Single-crystal X-ray diffraction, magnetization, electrical resistivity, and specific heat measurements were performed in this study. Two hexagonal structures with different PtAs honeycomb network stacking sequences, namely, SrPtSb- (space group $P\\bar{6}m2$, $D_{3h}^1$, No. 187) and YPtAs-type ($P6_3/mmc$, $D_{6h}^4$, No. 194) structures, were identified and found to exhibit superconductivity at 2.8 and 2.1-3.0 K, respectively. In contrast, the cubic LaIrSi-type structure ($P2_13$, $T^4$, No. 198) did not exhibit su"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00754","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":"2026-05-18T00:06:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jihPB0JD4dN1BZ3q2F76Z0FnUj8LYYVyoA4w/lePnuPNlUDPPoy8iGARrRdxI0EvUN+NFpttfcBAXpr77+QXDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T20:51:46.450910Z"},"content_sha256":"d4479197a5f5813925a5dc6ac09618b4be464a6a80a832c1c43dc28bb917dbf0","schema_version":"1.0","event_id":"sha256:d4479197a5f5813925a5dc6ac09618b4be464a6a80a832c1c43dc28bb917dbf0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ET3HFRRF4KFTEHG6BZCFH253GH/bundle.json","state_url":"https://pith.science/pith/ET3HFRRF4KFTEHG6BZCFH253GH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ET3HFRRF4KFTEHG6BZCFH253GH/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":"2026-05-27T20:51:46Z","links":{"resolver":"https://pith.science/pith/ET3HFRRF4KFTEHG6BZCFH253GH","bundle":"https://pith.science/pith/ET3HFRRF4KFTEHG6BZCFH253GH/bundle.json","state":"https://pith.science/pith/ET3HFRRF4KFTEHG6BZCFH253GH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ET3HFRRF4KFTEHG6BZCFH253GH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ET3HFRRF4KFTEHG6BZCFH253GH","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":"22dbeabb33aa1f41730ed239fcc25ff1e00a6319ee6d19b49c65ca0d53298ede","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-09-04T00:34:35Z","title_canon_sha256":"0b63d62141b50d5968a0e748d3ba5fe5188c5ba6db4feb96bbde0109008f75e3"},"schema_version":"1.0","source":{"id":"1809.00754","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1809.00754","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"arxiv_version","alias_value":"1809.00754v1","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.00754","created_at":"2026-05-18T00:06:32Z"},{"alias_kind":"pith_short_12","alias_value":"ET3HFRRF4KFT","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"ET3HFRRF4KFTEHG6","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"ET3HFRRF","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:d4479197a5f5813925a5dc6ac09618b4be464a6a80a832c1c43dc28bb917dbf0","target":"graph","created_at":"2026-05-18T00:06:32Z","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":"The crystal structure and superconductivity of hexagonal BaPtAs are reported. Single-crystal X-ray diffraction, magnetization, electrical resistivity, and specific heat measurements were performed in this study. Two hexagonal structures with different PtAs honeycomb network stacking sequences, namely, SrPtSb- (space group $P\\bar{6}m2$, $D_{3h}^1$, No. 187) and YPtAs-type ($P6_3/mmc$, $D_{6h}^4$, No. 194) structures, were identified and found to exhibit superconductivity at 2.8 and 2.1-3.0 K, respectively. In contrast, the cubic LaIrSi-type structure ($P2_13$, $T^4$, No. 198) did not exhibit su","authors_text":"Hiromi Ota, Kazunori Fujimura, Kazutaka Kudo, Minoru Nohara, Shin-ya Ayukawa, Takaaki Takeuchi, Yuki Saito","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-09-04T00:34:35Z","title":"Superconductivity in Hexagonal BaPtAs: SrPtSb- and YPtAs-type Structures with Ordered Honeycomb Network"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.00754","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:a93852f6b70a20f0d24794072baaae9d58c91a8743a2e2bb5de80070f6f84da2","target":"record","created_at":"2026-05-18T00:06:32Z","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":"22dbeabb33aa1f41730ed239fcc25ff1e00a6319ee6d19b49c65ca0d53298ede","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-09-04T00:34:35Z","title_canon_sha256":"0b63d62141b50d5968a0e748d3ba5fe5188c5ba6db4feb96bbde0109008f75e3"},"schema_version":"1.0","source":{"id":"1809.00754","kind":"arxiv","version":1}},"canonical_sha256":"24f672c625e28b321cde0e4453ebbb31f4e83b9c5e6c23882bcde14af8547eed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24f672c625e28b321cde0e4453ebbb31f4e83b9c5e6c23882bcde14af8547eed","first_computed_at":"2026-05-18T00:06:32.565872Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:06:32.565872Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/7U+d08JFrxO398t+MzoPHMVjPh/5NOcreqfNN/ooE1zQOOE5GE4sQDf+dMc+U/7EITD45R1gBXfAAlhw4mDCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:06:32.566403Z","signed_message":"canonical_sha256_bytes"},"source_id":"1809.00754","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a93852f6b70a20f0d24794072baaae9d58c91a8743a2e2bb5de80070f6f84da2","sha256:d4479197a5f5813925a5dc6ac09618b4be464a6a80a832c1c43dc28bb917dbf0"],"state_sha256":"db40a72ea1a4c02327c98679c4d37024f22c851c59027b9f2a621e1f13b236e1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q4ElfjzY/znzUooKcAcRYa6tLllp8E3lPMYzJJkT+OBauWRSO93zXRHj1228/4aOD+mkxzZ+KxHxEHD1YLoODw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T20:51:46.453813Z","bundle_sha256":"f53c574e1015dc2029f62061532cd61aec1138425bf0f0cc5c6ffe212bdd7417"}}