{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:3D2AB56FSHPIN2H5PKF4JCULN2","short_pith_number":"pith:3D2AB56F","canonical_record":{"source":{"id":"2505.12603","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-05-19T01:35:18Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"8e91dce046e6339a1f1b46977a9caeaeb878cf9d954eb5aa2564d413d19daee4","abstract_canon_sha256":"e4612879fa8798a90dd6cde9db25482d5eeea5a4e7ef8ec579fc2a4dcf5763e1"},"schema_version":"1.0"},"canonical_sha256":"d8f400f7c591de86e8fd7a8bc48a8b6e8e022f699810f459a031642614e1b3dd","source":{"kind":"arxiv","id":"2505.12603","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.12603","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"arxiv_version","alias_value":"2505.12603v1","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.12603","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"pith_short_12","alias_value":"3D2AB56FSHPI","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"pith_short_16","alias_value":"3D2AB56FSHPIN2H5","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"pith_short_8","alias_value":"3D2AB56F","created_at":"2026-07-05T11:05:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:3D2AB56FSHPIN2H5PKF4JCULN2","target":"record","payload":{"canonical_record":{"source":{"id":"2505.12603","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-05-19T01:35:18Z","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"title_canon_sha256":"8e91dce046e6339a1f1b46977a9caeaeb878cf9d954eb5aa2564d413d19daee4","abstract_canon_sha256":"e4612879fa8798a90dd6cde9db25482d5eeea5a4e7ef8ec579fc2a4dcf5763e1"},"schema_version":"1.0"},"canonical_sha256":"d8f400f7c591de86e8fd7a8bc48a8b6e8e022f699810f459a031642614e1b3dd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:05:06.760853Z","signature_b64":"Nt1V18oBx9LPc3DGj/FQAOQsgBACgJt/ZHFVvTIrb8p+nCwwJ21wByUNXRBjIYo54aKrDC1ERxcjWttcKeDlCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d8f400f7c591de86e8fd7a8bc48a8b6e8e022f699810f459a031642614e1b3dd","last_reissued_at":"2026-07-05T11:05:06.760344Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:05:06.760344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.12603","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":"2026-07-05T11:05:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HzEyRFVD/YJL5OXmgIt87vP72YD6xOVxBARP2/82E44j4lHqNkP5TOpyTDOCFxKjprwOxYjKBnji/H3DyOkqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T23:54:39.602430Z"},"content_sha256":"016d2ae6d40f5a2170f08f51d672eabf0ea7887ad86b05c106928944be32d921","schema_version":"1.0","event_id":"sha256:016d2ae6d40f5a2170f08f51d672eabf0ea7887ad86b05c106928944be32d921"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:3D2AB56FSHPIN2H5PKF4JCULN2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Superconductivity and phase diagram in Sr-doped La$_{3-x}$Sr$_{x}$Ni$_2$O$_7$ thin films","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Bo Hao, Dianxiang Ji, Haoying Sun, Hongyi Zhang, Jian Zhou, Lu Han, Maosen Wang, Shengjun Yan, Wenjie Sun, Yang Yang, Yuefeng Nie, Zhangwen Mao, Zhengbin Gu","submitted_at":"2025-05-19T01:35:18Z","abstract_excerpt":"Recent studies have demonstrated ambient pressure superconductivity in compressively strained La$_{3}$Ni$_{2}$O$_{7}$ thin films, yet the phase diagram of heterovalent doping$-$critical for advancing the field$-$remains unexplored. Here, we report superconductivity in Sr$^{2+}$-doped La$_{3-x}$Sr$_{x}$Ni$_2$O$_7$ films synthesized via molecular beam epitaxy with ozone-assisted post-annealing. The superconducting transition temperature ($T_{\\mathrm{c}}$) follows an asymmetric dome-like profile, persisting across a wide doping range ($0 \\leq x \\leq 0.21$) before diminishing at $x \\approx 0.38$. "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.12603","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2505.12603/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:05:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"evTHcTmPP/lQpAlD7Ts9ozgY8n1+65hfpXaOZ36JX2usPQLFpchVV58VB6AwocaK0qYicViDO8MeOTM5OL0mDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T23:54:39.602924Z"},"content_sha256":"1142ea36fdb56bd682dfc89831b50cf2978a2b5fbe44deadeeeb95a4212bfdea","schema_version":"1.0","event_id":"sha256:1142ea36fdb56bd682dfc89831b50cf2978a2b5fbe44deadeeeb95a4212bfdea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3D2AB56FSHPIN2H5PKF4JCULN2/bundle.json","state_url":"https://pith.science/pith/3D2AB56FSHPIN2H5PKF4JCULN2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3D2AB56FSHPIN2H5PKF4JCULN2/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":"2026-08-06T23:54:39Z","links":{"resolver":"https://pith.science/pith/3D2AB56FSHPIN2H5PKF4JCULN2","bundle":"https://pith.science/pith/3D2AB56FSHPIN2H5PKF4JCULN2/bundle.json","state":"https://pith.science/pith/3D2AB56FSHPIN2H5PKF4JCULN2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3D2AB56FSHPIN2H5PKF4JCULN2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:3D2AB56FSHPIN2H5PKF4JCULN2","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":"e4612879fa8798a90dd6cde9db25482d5eeea5a4e7ef8ec579fc2a4dcf5763e1","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-05-19T01:35:18Z","title_canon_sha256":"8e91dce046e6339a1f1b46977a9caeaeb878cf9d954eb5aa2564d413d19daee4"},"schema_version":"1.0","source":{"id":"2505.12603","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.12603","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"arxiv_version","alias_value":"2505.12603v1","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.12603","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"pith_short_12","alias_value":"3D2AB56FSHPI","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"pith_short_16","alias_value":"3D2AB56FSHPIN2H5","created_at":"2026-07-05T11:05:06Z"},{"alias_kind":"pith_short_8","alias_value":"3D2AB56F","created_at":"2026-07-05T11:05:06Z"}],"graph_snapshots":[{"event_id":"sha256:1142ea36fdb56bd682dfc89831b50cf2978a2b5fbe44deadeeeb95a4212bfdea","target":"graph","created_at":"2026-07-05T11:05:06Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2505.12603/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent studies have demonstrated ambient pressure superconductivity in compressively strained La$_{3}$Ni$_{2}$O$_{7}$ thin films, yet the phase diagram of heterovalent doping$-$critical for advancing the field$-$remains unexplored. Here, we report superconductivity in Sr$^{2+}$-doped La$_{3-x}$Sr$_{x}$Ni$_2$O$_7$ films synthesized via molecular beam epitaxy with ozone-assisted post-annealing. The superconducting transition temperature ($T_{\\mathrm{c}}$) follows an asymmetric dome-like profile, persisting across a wide doping range ($0 \\leq x \\leq 0.21$) before diminishing at $x \\approx 0.38$. ","authors_text":"Bo Hao, Dianxiang Ji, Haoying Sun, Hongyi Zhang, Jian Zhou, Lu Han, Maosen Wang, Shengjun Yan, Wenjie Sun, Yang Yang, Yuefeng Nie, Zhangwen Mao, Zhengbin Gu","cross_cats":["cond-mat.mtrl-sci","cond-mat.str-el"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-05-19T01:35:18Z","title":"Superconductivity and phase diagram in Sr-doped La$_{3-x}$Sr$_{x}$Ni$_2$O$_7$ thin films"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.12603","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":"sha256:016d2ae6d40f5a2170f08f51d672eabf0ea7887ad86b05c106928944be32d921","target":"record","created_at":"2026-07-05T11:05:06Z","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":"e4612879fa8798a90dd6cde9db25482d5eeea5a4e7ef8ec579fc2a4dcf5763e1","cross_cats_sorted":["cond-mat.mtrl-sci","cond-mat.str-el"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2025-05-19T01:35:18Z","title_canon_sha256":"8e91dce046e6339a1f1b46977a9caeaeb878cf9d954eb5aa2564d413d19daee4"},"schema_version":"1.0","source":{"id":"2505.12603","kind":"arxiv","version":1}},"canonical_sha256":"d8f400f7c591de86e8fd7a8bc48a8b6e8e022f699810f459a031642614e1b3dd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d8f400f7c591de86e8fd7a8bc48a8b6e8e022f699810f459a031642614e1b3dd","first_computed_at":"2026-07-05T11:05:06.760344Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:05:06.760344Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Nt1V18oBx9LPc3DGj/FQAOQsgBACgJt/ZHFVvTIrb8p+nCwwJ21wByUNXRBjIYo54aKrDC1ERxcjWttcKeDlCA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:05:06.760853Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.12603","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:016d2ae6d40f5a2170f08f51d672eabf0ea7887ad86b05c106928944be32d921","sha256:1142ea36fdb56bd682dfc89831b50cf2978a2b5fbe44deadeeeb95a4212bfdea"],"state_sha256":"916e808f367014b9f1c0b5cb1de4ba66bfa0255a134a3d92430f6fa7dca5cec0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TGvMD3t/KOrjUupe1eixUUND7Ayjn8vczvmcmj41NfKdW4emssdCbEX9oTyp20+l9MrxeBfVGCodxkDDDHdIBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T23:54:39.606495Z","bundle_sha256":"2d1bf68ba62289be19fab0f2fcceb8b3ec4ecdf0752513f7b95ff7143a09871d"}}