{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:AJDYSFPHIPGP2KD6C23UY6RQKW","short_pith_number":"pith:AJDYSFPH","canonical_record":{"source":{"id":"2201.04172","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-01-11T19:46:03Z","cross_cats_sorted":[],"title_canon_sha256":"8dcc5dc1e539f055bd00fd67fb560a66238c7a472d4df6543a33360ae8d7d6e9","abstract_canon_sha256":"89027c55838c9134d536cf872abbaa6f97a4304c9480f7b852b37a5d54b4d175"},"schema_version":"1.0"},"canonical_sha256":"02478915e743ccfd287e16b74c7a30559dce3a4a5573d2e6aad3ed68c050ddb2","source":{"kind":"arxiv","id":"2201.04172","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.04172","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"arxiv_version","alias_value":"2201.04172v1","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.04172","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"pith_short_12","alias_value":"AJDYSFPHIPGP","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"AJDYSFPHIPGP2KD6","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"AJDYSFPH","created_at":"2026-07-05T04:27:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:AJDYSFPHIPGP2KD6C23UY6RQKW","target":"record","payload":{"canonical_record":{"source":{"id":"2201.04172","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-01-11T19:46:03Z","cross_cats_sorted":[],"title_canon_sha256":"8dcc5dc1e539f055bd00fd67fb560a66238c7a472d4df6543a33360ae8d7d6e9","abstract_canon_sha256":"89027c55838c9134d536cf872abbaa6f97a4304c9480f7b852b37a5d54b4d175"},"schema_version":"1.0"},"canonical_sha256":"02478915e743ccfd287e16b74c7a30559dce3a4a5573d2e6aad3ed68c050ddb2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:27:51.135564Z","signature_b64":"BZLV6sJ5nyBbXN66OTx20kX34rK8X5j4eEXbrGi+0OYuCqGHWn5/2PQmSmmrlpwIgX2I6o0006R4FpkJSXXWCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"02478915e743ccfd287e16b74c7a30559dce3a4a5573d2e6aad3ed68c050ddb2","last_reissued_at":"2026-07-05T04:27:51.135082Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:27:51.135082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2201.04172","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":"2026-07-05T04:27:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O0nTvOSuOL4iipdk7FCHzMh4XYZvBpx2rUpE0gh3SgmyvQZYENBqmKP30WD+cD1njjcwJ3gtY8Q+PHD3QvttBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:50:29.552513Z"},"content_sha256":"8b517fec873f670960a7fcee05bbbf80f577e664c10327592db292a6c17381eb","schema_version":"1.0","event_id":"sha256:8b517fec873f670960a7fcee05bbbf80f577e664c10327592db292a6c17381eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:AJDYSFPHIPGP2KD6C23UY6RQKW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Site-specific surface atom valence band structure via X-ray standing wave excited photoemission","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Anusheela Das, Denis T. Keane, George C. Schatz, Leighton O. Jones, Martin A. Mosquera, Michael J. Bedzyk, Tien-Lin Lee, Yanna Chen","submitted_at":"2022-01-11T19:46:03Z","abstract_excerpt":"X-ray standing wave (XSW) excited photoelectron emission was used to measure the site-specific valence band (VB) for 1/2 monolayer (ML) Pt grown on a SrTiO3 (001) surface. The XSW induced modulations in the core level (CL) and VB photoemission from the surface and substrate atoms were monitored for three hkl substrate Bragg reflections. The XSW CL analysis shows the Pt to have an fcc-like cube-on-cube epitaxy with the substrate. The XSW VB information compares well to a density functional theory calculated projected density of states from the surface and substrate atoms. Overall, this work rep"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.04172","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/2201.04172/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":"2026-07-05T04:27:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PXhsQqp01XXhyFW5gaIWZ2EaUmzjWvjRe45sQXEre/QitSwMPjEPDnFK6t3ugE5GNU6LT6D73nUEEzlpAN+mBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-16T06:50:29.553013Z"},"content_sha256":"f44841fca97d7034093eb739228b9c4fc19c15864c583b3228961119273ddc34","schema_version":"1.0","event_id":"sha256:f44841fca97d7034093eb739228b9c4fc19c15864c583b3228961119273ddc34"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AJDYSFPHIPGP2KD6C23UY6RQKW/bundle.json","state_url":"https://pith.science/pith/AJDYSFPHIPGP2KD6C23UY6RQKW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AJDYSFPHIPGP2KD6C23UY6RQKW/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":"2026-08-16T06:50:29Z","links":{"resolver":"https://pith.science/pith/AJDYSFPHIPGP2KD6C23UY6RQKW","bundle":"https://pith.science/pith/AJDYSFPHIPGP2KD6C23UY6RQKW/bundle.json","state":"https://pith.science/pith/AJDYSFPHIPGP2KD6C23UY6RQKW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AJDYSFPHIPGP2KD6C23UY6RQKW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:AJDYSFPHIPGP2KD6C23UY6RQKW","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":"89027c55838c9134d536cf872abbaa6f97a4304c9480f7b852b37a5d54b4d175","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-01-11T19:46:03Z","title_canon_sha256":"8dcc5dc1e539f055bd00fd67fb560a66238c7a472d4df6543a33360ae8d7d6e9"},"schema_version":"1.0","source":{"id":"2201.04172","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.04172","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"arxiv_version","alias_value":"2201.04172v1","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.04172","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"pith_short_12","alias_value":"AJDYSFPHIPGP","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"pith_short_16","alias_value":"AJDYSFPHIPGP2KD6","created_at":"2026-07-05T04:27:51Z"},{"alias_kind":"pith_short_8","alias_value":"AJDYSFPH","created_at":"2026-07-05T04:27:51Z"}],"graph_snapshots":[{"event_id":"sha256:f44841fca97d7034093eb739228b9c4fc19c15864c583b3228961119273ddc34","target":"graph","created_at":"2026-07-05T04:27:51Z","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/2201.04172/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"X-ray standing wave (XSW) excited photoelectron emission was used to measure the site-specific valence band (VB) for 1/2 monolayer (ML) Pt grown on a SrTiO3 (001) surface. The XSW induced modulations in the core level (CL) and VB photoemission from the surface and substrate atoms were monitored for three hkl substrate Bragg reflections. The XSW CL analysis shows the Pt to have an fcc-like cube-on-cube epitaxy with the substrate. The XSW VB information compares well to a density functional theory calculated projected density of states from the surface and substrate atoms. Overall, this work rep","authors_text":"Anusheela Das, Denis T. Keane, George C. Schatz, Leighton O. Jones, Martin A. Mosquera, Michael J. Bedzyk, Tien-Lin Lee, Yanna Chen","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-01-11T19:46:03Z","title":"Site-specific surface atom valence band structure via X-ray standing wave excited photoemission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.04172","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":"sha256:8b517fec873f670960a7fcee05bbbf80f577e664c10327592db292a6c17381eb","target":"record","created_at":"2026-07-05T04:27:51Z","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":"89027c55838c9134d536cf872abbaa6f97a4304c9480f7b852b37a5d54b4d175","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2022-01-11T19:46:03Z","title_canon_sha256":"8dcc5dc1e539f055bd00fd67fb560a66238c7a472d4df6543a33360ae8d7d6e9"},"schema_version":"1.0","source":{"id":"2201.04172","kind":"arxiv","version":1}},"canonical_sha256":"02478915e743ccfd287e16b74c7a30559dce3a4a5573d2e6aad3ed68c050ddb2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"02478915e743ccfd287e16b74c7a30559dce3a4a5573d2e6aad3ed68c050ddb2","first_computed_at":"2026-07-05T04:27:51.135082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:27:51.135082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BZLV6sJ5nyBbXN66OTx20kX34rK8X5j4eEXbrGi+0OYuCqGHWn5/2PQmSmmrlpwIgX2I6o0006R4FpkJSXXWCw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:27:51.135564Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.04172","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b517fec873f670960a7fcee05bbbf80f577e664c10327592db292a6c17381eb","sha256:f44841fca97d7034093eb739228b9c4fc19c15864c583b3228961119273ddc34"],"state_sha256":"974c349bc592533d8ea95f54912b56928840290788ac5d15c48ababca9acf8a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I8+fmQtGlAG6cP4EQPoqVm8qEjepeHxnQxqz8ZHWIZm1zOVPiyMbQxxlAAAe+EOLpP9uHzNZyrFYHESEVzkUBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-16T06:50:29.564250Z","bundle_sha256":"c0bf7eaceaa78c7e1df10065f339c4b1fd360f84ecd9d3551186cdc47714000c"}}