{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:QKBSN7FYRA5OLEIYGAHUWSXZNS","short_pith_number":"pith:QKBSN7FY","canonical_record":{"source":{"id":"1507.01507","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-06T15:49:25Z","cross_cats_sorted":[],"title_canon_sha256":"4aef238a6e058ec737d597c21d715a0cbb4deadcdbda9e3a1f5f6d354a97cee4","abstract_canon_sha256":"af48c420ce56f40bee8bfded8aac89ecca46d472a13e21854850fd9e44c97abf"},"schema_version":"1.0"},"canonical_sha256":"828326fcb8883ae59118300f4b4af96cb6016255c989783aeb868e1781bebb13","source":{"kind":"arxiv","id":"1507.01507","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01507","created_at":"2026-05-18T01:37:16Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01507v1","created_at":"2026-05-18T01:37:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01507","created_at":"2026-05-18T01:37:16Z"},{"alias_kind":"pith_short_12","alias_value":"QKBSN7FYRA5O","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"QKBSN7FYRA5OLEIY","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"QKBSN7FY","created_at":"2026-05-18T12:29:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:QKBSN7FYRA5OLEIYGAHUWSXZNS","target":"record","payload":{"canonical_record":{"source":{"id":"1507.01507","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-06T15:49:25Z","cross_cats_sorted":[],"title_canon_sha256":"4aef238a6e058ec737d597c21d715a0cbb4deadcdbda9e3a1f5f6d354a97cee4","abstract_canon_sha256":"af48c420ce56f40bee8bfded8aac89ecca46d472a13e21854850fd9e44c97abf"},"schema_version":"1.0"},"canonical_sha256":"828326fcb8883ae59118300f4b4af96cb6016255c989783aeb868e1781bebb13","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:37:16.762651Z","signature_b64":"Zelmcc5E94tV0NmsKqgliznfwvIhuYRdtC4mQ41R4RjZ6b4SF8+TYV50URnoEQZhm0iNpypaUROeRngXqxyhDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"828326fcb8883ae59118300f4b4af96cb6016255c989783aeb868e1781bebb13","last_reissued_at":"2026-05-18T01:37:16.762109Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:37:16.762109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.01507","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":"2026-05-18T01:37:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q6Y2H/V5okWeyigPvWIv2ZnFW/fzqh5r/yX7SEzlC/z8RmahZymmr6OIpeQJ6d2ZZT4X5TrWc+hPSUKdvHcYBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:45:20.368502Z"},"content_sha256":"d85482fb5f845f6d755555f98437c3b37135d226078df9e6eb5f488f92bfaa99","schema_version":"1.0","event_id":"sha256:d85482fb5f845f6d755555f98437c3b37135d226078df9e6eb5f488f92bfaa99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:QKBSN7FYRA5OLEIYGAHUWSXZNS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Final-state effect on x-ray photoelectron spectrum of nominally $d^1$ and $n$-doped $d^0$ transition metal oxides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Agham Posadas, Alexander A. Demkov, Chungwei Lin, Tobias Hadamek","submitted_at":"2015-07-06T15:49:25Z","abstract_excerpt":"We investigate the x-ray photoelectron spectroscopy (XPS) of nominally $d^1$ and $n$-doped $d^0$ transition metal oxides including NbO$_2$, SrVO$_3$, and LaTiO$_3$ (nominally $d^1$), as well as $n$-doped SrTiO$_3$ (nominally $d^0$). In the case of single phase $d^1$ oxides, we find that the XPS spectra (specifically photoelectrons from Nb $3d$, V $2p$, Ti $2p$ core levels) all display at least two, and sometimes three distinct components, which can be consistently identified as $d^0$, $d^1$, and $d^2$ oxidation states (with decreasing order in binding energy). Electron doping increases the $d^"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01507","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":"2026-05-18T01:37:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LoFNFOaRTQ46utL7csL0aiFUblOx8Lk4yCaS9KdrEcHictIXGZXMrZCiivfEhTqCqz0aengZseNaE6irmpJvBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T00:45:20.369161Z"},"content_sha256":"7556aac68b5eaeb9958daf850c7e9b1700f8808cac85f3adc64eb6733a5dc0c4","schema_version":"1.0","event_id":"sha256:7556aac68b5eaeb9958daf850c7e9b1700f8808cac85f3adc64eb6733a5dc0c4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS/bundle.json","state_url":"https://pith.science/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS/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":"2026-05-27T00:45:20Z","links":{"resolver":"https://pith.science/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS","bundle":"https://pith.science/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS/bundle.json","state":"https://pith.science/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QKBSN7FYRA5OLEIYGAHUWSXZNS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QKBSN7FYRA5OLEIYGAHUWSXZNS","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":"af48c420ce56f40bee8bfded8aac89ecca46d472a13e21854850fd9e44c97abf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-06T15:49:25Z","title_canon_sha256":"4aef238a6e058ec737d597c21d715a0cbb4deadcdbda9e3a1f5f6d354a97cee4"},"schema_version":"1.0","source":{"id":"1507.01507","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01507","created_at":"2026-05-18T01:37:16Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01507v1","created_at":"2026-05-18T01:37:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01507","created_at":"2026-05-18T01:37:16Z"},{"alias_kind":"pith_short_12","alias_value":"QKBSN7FYRA5O","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"QKBSN7FYRA5OLEIY","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"QKBSN7FY","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:7556aac68b5eaeb9958daf850c7e9b1700f8808cac85f3adc64eb6733a5dc0c4","target":"graph","created_at":"2026-05-18T01:37:16Z","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":"We investigate the x-ray photoelectron spectroscopy (XPS) of nominally $d^1$ and $n$-doped $d^0$ transition metal oxides including NbO$_2$, SrVO$_3$, and LaTiO$_3$ (nominally $d^1$), as well as $n$-doped SrTiO$_3$ (nominally $d^0$). In the case of single phase $d^1$ oxides, we find that the XPS spectra (specifically photoelectrons from Nb $3d$, V $2p$, Ti $2p$ core levels) all display at least two, and sometimes three distinct components, which can be consistently identified as $d^0$, $d^1$, and $d^2$ oxidation states (with decreasing order in binding energy). Electron doping increases the $d^","authors_text":"Agham Posadas, Alexander A. Demkov, Chungwei Lin, Tobias Hadamek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-06T15:49:25Z","title":"Final-state effect on x-ray photoelectron spectrum of nominally $d^1$ and $n$-doped $d^0$ transition metal oxides"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01507","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:d85482fb5f845f6d755555f98437c3b37135d226078df9e6eb5f488f92bfaa99","target":"record","created_at":"2026-05-18T01:37:16Z","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":"af48c420ce56f40bee8bfded8aac89ecca46d472a13e21854850fd9e44c97abf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-07-06T15:49:25Z","title_canon_sha256":"4aef238a6e058ec737d597c21d715a0cbb4deadcdbda9e3a1f5f6d354a97cee4"},"schema_version":"1.0","source":{"id":"1507.01507","kind":"arxiv","version":1}},"canonical_sha256":"828326fcb8883ae59118300f4b4af96cb6016255c989783aeb868e1781bebb13","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"828326fcb8883ae59118300f4b4af96cb6016255c989783aeb868e1781bebb13","first_computed_at":"2026-05-18T01:37:16.762109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:16.762109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Zelmcc5E94tV0NmsKqgliznfwvIhuYRdtC4mQ41R4RjZ6b4SF8+TYV50URnoEQZhm0iNpypaUROeRngXqxyhDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:16.762651Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.01507","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d85482fb5f845f6d755555f98437c3b37135d226078df9e6eb5f488f92bfaa99","sha256:7556aac68b5eaeb9958daf850c7e9b1700f8808cac85f3adc64eb6733a5dc0c4"],"state_sha256":"5eae1cbefa312fa0e962fcb06e051d5cb7d18d52bb48c943fe6c40e8c2cbe1be"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xlMrAn++FTN5dOCYWjTyLz5JCY7yD8zILuWYjMBvXnZClEauomWAkZSHvFbE7etH8bhm7cg0OjUutrJYsCxLCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T00:45:20.372938Z","bundle_sha256":"27ec1ac15552996692a2ed6abad8a94a518783c6c8fbf8ee4d7a8e678685a9dd"}}