{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:J4XDN5YYPFZCR57V3HYSP56OJQ","short_pith_number":"pith:J4XDN5YY","canonical_record":{"source":{"id":"1304.1615","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-05T05:49:01Z","cross_cats_sorted":[],"title_canon_sha256":"2fbec5331e6ef03f8702a6e4577d35e3bd9e2f46088e08bae016ebb2db673234","abstract_canon_sha256":"efa9b7ea3914417b1572020a1f5ecd03a6f41219fe0869157dc48b2cd2192d4d"},"schema_version":"1.0"},"canonical_sha256":"4f2e36f718797228f7f5d9f127f7ce4c0d96d9e5efcb7a078535a51a49ada873","source":{"kind":"arxiv","id":"1304.1615","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.1615","created_at":"2026-05-18T03:01:56Z"},{"alias_kind":"arxiv_version","alias_value":"1304.1615v2","created_at":"2026-05-18T03:01:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.1615","created_at":"2026-05-18T03:01:56Z"},{"alias_kind":"pith_short_12","alias_value":"J4XDN5YYPFZC","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J4XDN5YYPFZCR57V","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J4XDN5YY","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:J4XDN5YYPFZCR57V3HYSP56OJQ","target":"record","payload":{"canonical_record":{"source":{"id":"1304.1615","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-05T05:49:01Z","cross_cats_sorted":[],"title_canon_sha256":"2fbec5331e6ef03f8702a6e4577d35e3bd9e2f46088e08bae016ebb2db673234","abstract_canon_sha256":"efa9b7ea3914417b1572020a1f5ecd03a6f41219fe0869157dc48b2cd2192d4d"},"schema_version":"1.0"},"canonical_sha256":"4f2e36f718797228f7f5d9f127f7ce4c0d96d9e5efcb7a078535a51a49ada873","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:01:56.354697Z","signature_b64":"f5vcB0dXl2kYOpqQXW1g4SwH8D0q8lz2Q+HwLJg9avcWN5NtMZReWUEZf5Zx/nOSDuWJGXuUeVni5l4t2519DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f2e36f718797228f7f5d9f127f7ce4c0d96d9e5efcb7a078535a51a49ada873","last_reissued_at":"2026-05-18T03:01:56.353965Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:01:56.353965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1304.1615","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:01:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pEG3F7nBek4KAhnSuxoZqI0wt2Dz6vI29lvICN3zc4WPyy+2HdMedIyyR7YN+87pRl+cMXcCnnusO6wohDSWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:11:27.735487Z"},"content_sha256":"23a2b5bc7f1b59a19c263af7bfbe58881a10d8b8f759f19401964dd955978a52","schema_version":"1.0","event_id":"sha256:23a2b5bc7f1b59a19c263af7bfbe58881a10d8b8f759f19401964dd955978a52"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:J4XDN5YYPFZCR57V3HYSP56OJQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Fermi level density of states modulation without charge transfer in nickelate superlattices","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Michel van Veenendaal, Myung Joon Han","submitted_at":"2013-04-05T05:49:01Z","abstract_excerpt":"By using first-principles density functional theory calculations for (LaNiO3)m/(SrTiO3)n superlattices, we report a systematic way of electronic response to the interface geometry. It is found that Fermi level density of states of metallic nickelate layers is significantly reduced without charge transfer in the vicinity of interface to the insulating SrTiO3. This type of electronic state redistribution is clearly distinctive from other interface phenomena such as charge and orbital reconstruction. Our result sheds new light towards understanding the nickelates and other transitionmetal oxide h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.1615","kind":"arxiv","version":2},"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":"2026-05-18T03:01:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"umjcksj8rKt2akr8Lyii/UNdp8LGkMPKxKmwLzLR0rPg/gsQh6LTJrG9bTPx3rYo9N7+B3P4zbUVIJMP9p7CBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T22:11:27.735847Z"},"content_sha256":"57cc8395be66c71b1a68d863ffbe55355b8be92b1b8501a09792527af04f6e95","schema_version":"1.0","event_id":"sha256:57cc8395be66c71b1a68d863ffbe55355b8be92b1b8501a09792527af04f6e95"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J4XDN5YYPFZCR57V3HYSP56OJQ/bundle.json","state_url":"https://pith.science/pith/J4XDN5YYPFZCR57V3HYSP56OJQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J4XDN5YYPFZCR57V3HYSP56OJQ/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":"2026-06-03T22:11:27Z","links":{"resolver":"https://pith.science/pith/J4XDN5YYPFZCR57V3HYSP56OJQ","bundle":"https://pith.science/pith/J4XDN5YYPFZCR57V3HYSP56OJQ/bundle.json","state":"https://pith.science/pith/J4XDN5YYPFZCR57V3HYSP56OJQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J4XDN5YYPFZCR57V3HYSP56OJQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:J4XDN5YYPFZCR57V3HYSP56OJQ","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":"efa9b7ea3914417b1572020a1f5ecd03a6f41219fe0869157dc48b2cd2192d4d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-05T05:49:01Z","title_canon_sha256":"2fbec5331e6ef03f8702a6e4577d35e3bd9e2f46088e08bae016ebb2db673234"},"schema_version":"1.0","source":{"id":"1304.1615","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1304.1615","created_at":"2026-05-18T03:01:56Z"},{"alias_kind":"arxiv_version","alias_value":"1304.1615v2","created_at":"2026-05-18T03:01:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1304.1615","created_at":"2026-05-18T03:01:56Z"},{"alias_kind":"pith_short_12","alias_value":"J4XDN5YYPFZC","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"J4XDN5YYPFZCR57V","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"J4XDN5YY","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:57cc8395be66c71b1a68d863ffbe55355b8be92b1b8501a09792527af04f6e95","target":"graph","created_at":"2026-05-18T03:01:56Z","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":"By using first-principles density functional theory calculations for (LaNiO3)m/(SrTiO3)n superlattices, we report a systematic way of electronic response to the interface geometry. It is found that Fermi level density of states of metallic nickelate layers is significantly reduced without charge transfer in the vicinity of interface to the insulating SrTiO3. This type of electronic state redistribution is clearly distinctive from other interface phenomena such as charge and orbital reconstruction. Our result sheds new light towards understanding the nickelates and other transitionmetal oxide h","authors_text":"Michel van Veenendaal, Myung Joon Han","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-05T05:49:01Z","title":"Fermi level density of states modulation without charge transfer in nickelate superlattices"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1304.1615","kind":"arxiv","version":2},"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":"sha256:23a2b5bc7f1b59a19c263af7bfbe58881a10d8b8f759f19401964dd955978a52","target":"record","created_at":"2026-05-18T03:01:56Z","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":"efa9b7ea3914417b1572020a1f5ecd03a6f41219fe0869157dc48b2cd2192d4d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-04-05T05:49:01Z","title_canon_sha256":"2fbec5331e6ef03f8702a6e4577d35e3bd9e2f46088e08bae016ebb2db673234"},"schema_version":"1.0","source":{"id":"1304.1615","kind":"arxiv","version":2}},"canonical_sha256":"4f2e36f718797228f7f5d9f127f7ce4c0d96d9e5efcb7a078535a51a49ada873","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f2e36f718797228f7f5d9f127f7ce4c0d96d9e5efcb7a078535a51a49ada873","first_computed_at":"2026-05-18T03:01:56.353965Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:01:56.353965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f5vcB0dXl2kYOpqQXW1g4SwH8D0q8lz2Q+HwLJg9avcWN5NtMZReWUEZf5Zx/nOSDuWJGXuUeVni5l4t2519DA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:01:56.354697Z","signed_message":"canonical_sha256_bytes"},"source_id":"1304.1615","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23a2b5bc7f1b59a19c263af7bfbe58881a10d8b8f759f19401964dd955978a52","sha256:57cc8395be66c71b1a68d863ffbe55355b8be92b1b8501a09792527af04f6e95"],"state_sha256":"687a7cff115df259ee507202b6c1ace79b9854e57a722b670d92eb6010756684"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+Qi+2QkaMAuwK/A6m2GDqb+BGsA1jsfjDCahV31zvKFDBvEsLKkeYSI77yNFuDVXN0pa/rzwZY0PJlK6lNDMCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T22:11:27.737848Z","bundle_sha256":"2ad2b938b78201e59d3061a337f5162e4c74c8d74efef6b97e4b6654b908fc69"}}