{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:7VRVEVGM4JOIZJNDOPVKXCVCX3","short_pith_number":"pith:7VRVEVGM","canonical_record":{"source":{"id":"2607.27517","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-29T23:13:51Z","cross_cats_sorted":[],"title_canon_sha256":"5137da642fc1921050ada89c1f7573a39cedc04958c927af2adf46faad5e8e42","abstract_canon_sha256":"ad4e5cde568903a17209c656aadddd8a0387a3c53a9d89372999e758ec023cf8"},"schema_version":"1.0"},"canonical_sha256":"fd635254cce25c8ca5a373eaab8aa2bee6845d2757e02de137ff25d08653b0b8","source":{"kind":"arxiv","id":"2607.27517","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.27517","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"2607.27517v1","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27517","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"7VRVEVGM4JOI","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"pith_short_16","alias_value":"7VRVEVGM4JOIZJND","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"pith_short_8","alias_value":"7VRVEVGM","created_at":"2026-07-31T01:24:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:7VRVEVGM4JOIZJNDOPVKXCVCX3","target":"record","payload":{"canonical_record":{"source":{"id":"2607.27517","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-29T23:13:51Z","cross_cats_sorted":[],"title_canon_sha256":"5137da642fc1921050ada89c1f7573a39cedc04958c927af2adf46faad5e8e42","abstract_canon_sha256":"ad4e5cde568903a17209c656aadddd8a0387a3c53a9d89372999e758ec023cf8"},"schema_version":"1.0"},"canonical_sha256":"fd635254cce25c8ca5a373eaab8aa2bee6845d2757e02de137ff25d08653b0b8","receipt":{"kind":"pith_receipt","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fd635254cce25c8ca5a373eaab8aa2bee6845d2757e02de137ff25d08653b0b8","last_reissued_at":"2026-07-31T01:24:53.805654Z","signature_status":"unsigned_v0","first_computed_at":"2026-07-31T01:24:53.805654Z"},"source_kind":"arxiv","source_id":"2607.27517","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":"2026-07-31T01:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8J5tCoY3O4XwCYISGlYPxrbkXnYKyTSfT/vIRdIhx1q44ak7ilC3KczbC/eqTUK7CLQCOhDSL3YywqMMnfKzCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T18:32:32.326553Z"},"content_sha256":"307e996e590e9387689e87af8b76d520d476c64d91d6fc1eb22cc8406b75c223","schema_version":"1.0","event_id":"sha256:307e996e590e9387689e87af8b76d520d476c64d91d6fc1eb22cc8406b75c223"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:7VRVEVGM4JOIZJNDOPVKXCVCX3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temperature-doping phase diagram and endurance in Ce-doped HfO2","license":"http://creativecommons.org/publicdomain/zero/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Alexei Gruverman, Amit Kumar Shah, Haidong Lu, Kawshan Hathurusingha, Xiaoshan Xu","submitted_at":"2026-07-29T23:13:51Z","abstract_excerpt":"The structural and ferroelectric properties of epitaxial Hf1-xCexO2 (CHO) thin films in the ultrathin regime are investigated as a function of Ce concentration (5% <= x <= 20%) and temperature. A temperature-doping phase diagram is established for 10 nm films, showing a systematic evolution from the ferroelectric orthorhombic phase to tetragonal and cubic phases with increasing Ce content. The orthorhombic-tetragonal transition temperature decreases from ~800{\\deg}C at x = 5% to $~300{\\deg}C$ at x = 15%, indicating strong stabilization of higher-symmetry phases with doping. Consistently, the r"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27517","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/2607.27517/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":"2026-07-31T01:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cLEkECCSLoCx5z07d9YnZDJPdAPi9yF5C3QFZbBMiMW1rb9tR5Cgjn+UwTQdzoANX1gg9Gaz+aesYGpkGsNyCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T18:32:32.327143Z"},"content_sha256":"93613a8af73fe7e75b7a3ed4c2fa5b5439561a22416b6c0b50ad973c1fbcdb01","schema_version":"1.0","event_id":"sha256:93613a8af73fe7e75b7a3ed4c2fa5b5439561a22416b6c0b50ad973c1fbcdb01"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3/bundle.json","state_url":"https://pith.science/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3/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":"2026-08-05T18:32:32Z","links":{"resolver":"https://pith.science/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3","bundle":"https://pith.science/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3/bundle.json","state":"https://pith.science/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7VRVEVGM4JOIZJNDOPVKXCVCX3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:7VRVEVGM4JOIZJNDOPVKXCVCX3","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":"ad4e5cde568903a17209c656aadddd8a0387a3c53a9d89372999e758ec023cf8","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-29T23:13:51Z","title_canon_sha256":"5137da642fc1921050ada89c1f7573a39cedc04958c927af2adf46faad5e8e42"},"schema_version":"1.0","source":{"id":"2607.27517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.27517","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"2607.27517v1","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.27517","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"7VRVEVGM4JOI","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"pith_short_16","alias_value":"7VRVEVGM4JOIZJND","created_at":"2026-07-31T01:24:53Z"},{"alias_kind":"pith_short_8","alias_value":"7VRVEVGM","created_at":"2026-07-31T01:24:53Z"}],"graph_snapshots":[{"event_id":"sha256:93613a8af73fe7e75b7a3ed4c2fa5b5439561a22416b6c0b50ad973c1fbcdb01","target":"graph","created_at":"2026-07-31T01:24:53Z","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/2607.27517/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The structural and ferroelectric properties of epitaxial Hf1-xCexO2 (CHO) thin films in the ultrathin regime are investigated as a function of Ce concentration (5% <= x <= 20%) and temperature. A temperature-doping phase diagram is established for 10 nm films, showing a systematic evolution from the ferroelectric orthorhombic phase to tetragonal and cubic phases with increasing Ce content. The orthorhombic-tetragonal transition temperature decreases from ~800{\\deg}C at x = 5% to $~300{\\deg}C$ at x = 15%, indicating strong stabilization of higher-symmetry phases with doping. Consistently, the r","authors_text":"Alexei Gruverman, Amit Kumar Shah, Haidong Lu, Kawshan Hathurusingha, Xiaoshan Xu","cross_cats":[],"headline":"","license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-29T23:13:51Z","title":"Temperature-doping phase diagram and endurance in Ce-doped HfO2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.27517","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":"sha256:307e996e590e9387689e87af8b76d520d476c64d91d6fc1eb22cc8406b75c223","target":"record","created_at":"2026-07-31T01:24:53Z","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":"ad4e5cde568903a17209c656aadddd8a0387a3c53a9d89372999e758ec023cf8","cross_cats_sorted":[],"license":"http://creativecommons.org/publicdomain/zero/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2026-07-29T23:13:51Z","title_canon_sha256":"5137da642fc1921050ada89c1f7573a39cedc04958c927af2adf46faad5e8e42"},"schema_version":"1.0","source":{"id":"2607.27517","kind":"arxiv","version":1}},"canonical_sha256":"fd635254cce25c8ca5a373eaab8aa2bee6845d2757e02de137ff25d08653b0b8","receipt":{"builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fd635254cce25c8ca5a373eaab8aa2bee6845d2757e02de137ff25d08653b0b8","first_computed_at":"2026-07-31T01:24:53.805654Z","kind":"pith_receipt","last_reissued_at":"2026-07-31T01:24:53.805654Z","receipt_version":"0.3","signature_status":"unsigned_v0"},"source_id":"2607.27517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:307e996e590e9387689e87af8b76d520d476c64d91d6fc1eb22cc8406b75c223","sha256:93613a8af73fe7e75b7a3ed4c2fa5b5439561a22416b6c0b50ad973c1fbcdb01"],"state_sha256":"aefa3023dfe282537f81213397631370fac279405bcc753ecd801625d010cba7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s5qrsHtFCgQbSCFDIqntUr+YDoIDWDpcrd/JoN56/BeSAUnUo+Zkp2cMQf5vK8SallZ3Dp7QMKuCQl+RhaEiDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T18:32:32.381482Z","bundle_sha256":"9c359c2359c49920093b8ab013f927ba0b96aa8887df4591304f38b8c8bb86fa"}}