{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:X5ZRWZ6GKD65XF4GJ2XIQCAP7Q","short_pith_number":"pith:X5ZRWZ6G","canonical_record":{"source":{"id":"1805.09268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-23T16:30:29Z","cross_cats_sorted":[],"title_canon_sha256":"ae6e4bb9d9b117ae4276b0724b2d944ba5b4c2b6fd56e8f6574b0942b84a616c","abstract_canon_sha256":"0bccf454e776c07aa71e563137e64941fdd719d95af3ccdf096033c45270e4e3"},"schema_version":"1.0"},"canonical_sha256":"bf731b67c650fddb97864eae88080ffc08756ccaf4c99b5b0e3f83e829ae7f20","source":{"kind":"arxiv","id":"1805.09268","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09268","created_at":"2026-05-18T00:14:43Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09268v1","created_at":"2026-05-18T00:14:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09268","created_at":"2026-05-18T00:14:43Z"},{"alias_kind":"pith_short_12","alias_value":"X5ZRWZ6GKD65","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X5ZRWZ6GKD65XF4G","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X5ZRWZ6G","created_at":"2026-05-18T12:33:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:X5ZRWZ6GKD65XF4GJ2XIQCAP7Q","target":"record","payload":{"canonical_record":{"source":{"id":"1805.09268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-23T16:30:29Z","cross_cats_sorted":[],"title_canon_sha256":"ae6e4bb9d9b117ae4276b0724b2d944ba5b4c2b6fd56e8f6574b0942b84a616c","abstract_canon_sha256":"0bccf454e776c07aa71e563137e64941fdd719d95af3ccdf096033c45270e4e3"},"schema_version":"1.0"},"canonical_sha256":"bf731b67c650fddb97864eae88080ffc08756ccaf4c99b5b0e3f83e829ae7f20","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:43.815988Z","signature_b64":"FEOzQJ/VIOVQIyYYrDcKbOIIAlVhy547qm5BZqEMXKq8GawdfkIeKO37g6LkQEbQitw3FYdr+t2uN6YC73IDCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf731b67c650fddb97864eae88080ffc08756ccaf4c99b5b0e3f83e829ae7f20","last_reissued_at":"2026-05-18T00:14:43.815483Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:43.815483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.09268","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":"2026-05-18T00:14:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Hu5n3Yv1Jm+CpcCBVhVhVz7uVKfVLuIIPmgSKScJxu73H2+CgzeEfwEN/Srdcn0tTzNS3uv3Y9fYbu2ceaiBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T17:58:59.554491Z"},"content_sha256":"d042973a55f074394fddac2ea6bcabc5ac7d82dd3fbaee5d37e7b7c46b001866","schema_version":"1.0","event_id":"sha256:d042973a55f074394fddac2ea6bcabc5ac7d82dd3fbaee5d37e7b7c46b001866"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:X5ZRWZ6GKD65XF4GJ2XIQCAP7Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of a new nontoxic cuprate superconducting system Ga-Ba-Ca-Cu-O","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Chengping He, Hai-Hu Wen, Haonan Zhao, Jin Si, Wenhao Liu, Xiyu Zhu, Yue Zhang","submitted_at":"2018-05-23T16:30:29Z","abstract_excerpt":"Superconductivity is observed in a new nontoxic cuprate system Ga-Ba-Ca-Cu-O, with Tc = 82K for GaBa2Ca5Cu6O14+{\\delta} (Ga-1256) and Tc = 116K probably for GaBa2Ca3Cu4O10+{\\delta} (Ga-1234) or GaBa2Ca2Cu3O8+{\\delta} (Ga-1223), respectively. All compounds are fabricated by solid state reaction method under high pressure and high temperature. Samples are characterized by resistivity, magnetization and X-ray diffraction (XRD) measurements. The temperature dependence of magnetization measured in both zero-field-cooled and field-cooled processes on one sample (S1) shows two superconducting transit"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09268","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":"2026-05-18T00:14:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZYRfi0cNMfDcIuQ9qRn7xzBFfJBAydO/qv5Q07CBYYgwGNXQqWBwLEMdkJu1a+e7Fi51lSuik8vxteqTNXUmBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-23T17:58:59.555098Z"},"content_sha256":"e587c883db73cfd33809865afeddf457c7e4cdd743d6e47fbb684db72c81b017","schema_version":"1.0","event_id":"sha256:e587c883db73cfd33809865afeddf457c7e4cdd743d6e47fbb684db72c81b017"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q/bundle.json","state_url":"https://pith.science/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q/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":"2026-05-23T17:58:59Z","links":{"resolver":"https://pith.science/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q","bundle":"https://pith.science/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q/bundle.json","state":"https://pith.science/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X5ZRWZ6GKD65XF4GJ2XIQCAP7Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:X5ZRWZ6GKD65XF4GJ2XIQCAP7Q","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":"0bccf454e776c07aa71e563137e64941fdd719d95af3ccdf096033c45270e4e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-23T16:30:29Z","title_canon_sha256":"ae6e4bb9d9b117ae4276b0724b2d944ba5b4c2b6fd56e8f6574b0942b84a616c"},"schema_version":"1.0","source":{"id":"1805.09268","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09268","created_at":"2026-05-18T00:14:43Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09268v1","created_at":"2026-05-18T00:14:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09268","created_at":"2026-05-18T00:14:43Z"},{"alias_kind":"pith_short_12","alias_value":"X5ZRWZ6GKD65","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_16","alias_value":"X5ZRWZ6GKD65XF4G","created_at":"2026-05-18T12:33:01Z"},{"alias_kind":"pith_short_8","alias_value":"X5ZRWZ6G","created_at":"2026-05-18T12:33:01Z"}],"graph_snapshots":[{"event_id":"sha256:e587c883db73cfd33809865afeddf457c7e4cdd743d6e47fbb684db72c81b017","target":"graph","created_at":"2026-05-18T00:14:43Z","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":"Superconductivity is observed in a new nontoxic cuprate system Ga-Ba-Ca-Cu-O, with Tc = 82K for GaBa2Ca5Cu6O14+{\\delta} (Ga-1256) and Tc = 116K probably for GaBa2Ca3Cu4O10+{\\delta} (Ga-1234) or GaBa2Ca2Cu3O8+{\\delta} (Ga-1223), respectively. All compounds are fabricated by solid state reaction method under high pressure and high temperature. Samples are characterized by resistivity, magnetization and X-ray diffraction (XRD) measurements. The temperature dependence of magnetization measured in both zero-field-cooled and field-cooled processes on one sample (S1) shows two superconducting transit","authors_text":"Chengping He, Hai-Hu Wen, Haonan Zhao, Jin Si, Wenhao Liu, Xiyu Zhu, Yue Zhang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-23T16:30:29Z","title":"Discovery of a new nontoxic cuprate superconducting system Ga-Ba-Ca-Cu-O"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09268","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:d042973a55f074394fddac2ea6bcabc5ac7d82dd3fbaee5d37e7b7c46b001866","target":"record","created_at":"2026-05-18T00:14:43Z","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":"0bccf454e776c07aa71e563137e64941fdd719d95af3ccdf096033c45270e4e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2018-05-23T16:30:29Z","title_canon_sha256":"ae6e4bb9d9b117ae4276b0724b2d944ba5b4c2b6fd56e8f6574b0942b84a616c"},"schema_version":"1.0","source":{"id":"1805.09268","kind":"arxiv","version":1}},"canonical_sha256":"bf731b67c650fddb97864eae88080ffc08756ccaf4c99b5b0e3f83e829ae7f20","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bf731b67c650fddb97864eae88080ffc08756ccaf4c99b5b0e3f83e829ae7f20","first_computed_at":"2026-05-18T00:14:43.815483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:43.815483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FEOzQJ/VIOVQIyYYrDcKbOIIAlVhy547qm5BZqEMXKq8GawdfkIeKO37g6LkQEbQitw3FYdr+t2uN6YC73IDCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:43.815988Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09268","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d042973a55f074394fddac2ea6bcabc5ac7d82dd3fbaee5d37e7b7c46b001866","sha256:e587c883db73cfd33809865afeddf457c7e4cdd743d6e47fbb684db72c81b017"],"state_sha256":"887ec841bae5b00c8eb2a85298104224fbb3091f3be479913c569a872a6d3a1f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YWs97ExEWw6dzw0prCr+eRQqK9vzqez46LX3f4VYPQcNn3HBk7qC5KpHwGmnPfo+3iVyMMl7eZz1eIn+5z7VCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-23T17:58:59.558328Z","bundle_sha256":"077c53f525a73724d34b36b7948b466b5f784795e8d3385d77ae1dcbfed039d7"}}