{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:I5BZUEKG575Y62DCQILELP2WNL","short_pith_number":"pith:I5BZUEKG","canonical_record":{"source":{"id":"2301.05008","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-01-07T09:20:23Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"2a2f8008fe3b7a083ab9476295838d7180dc6d75e5c0b036c504aa501220539a","abstract_canon_sha256":"8f185e624d66f0d8c25d7e084556908670e1e0da52b3fbdb93644a3d2731b948"},"schema_version":"1.0"},"canonical_sha256":"47439a1146effb8f6862821645bf566ad4f828d64dc107a81812905936f46b36","source":{"kind":"arxiv","id":"2301.05008","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.05008","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"arxiv_version","alias_value":"2301.05008v1","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.05008","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"pith_short_12","alias_value":"I5BZUEKG575Y","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"pith_short_16","alias_value":"I5BZUEKG575Y62DC","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"pith_short_8","alias_value":"I5BZUEKG","created_at":"2026-07-05T05:32:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:I5BZUEKG575Y62DCQILELP2WNL","target":"record","payload":{"canonical_record":{"source":{"id":"2301.05008","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-01-07T09:20:23Z","cross_cats_sorted":["physics.chem-ph"],"title_canon_sha256":"2a2f8008fe3b7a083ab9476295838d7180dc6d75e5c0b036c504aa501220539a","abstract_canon_sha256":"8f185e624d66f0d8c25d7e084556908670e1e0da52b3fbdb93644a3d2731b948"},"schema_version":"1.0"},"canonical_sha256":"47439a1146effb8f6862821645bf566ad4f828d64dc107a81812905936f46b36","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:32:38.492922Z","signature_b64":"+PPIlJgvfpSq3U6jwicTE0cyHJUPdSFat7dzZrPN2Zy37gk5yu4ryWju5WOPxnHSeDaOazAKqtlt562n2NOZDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47439a1146effb8f6862821645bf566ad4f828d64dc107a81812905936f46b36","last_reissued_at":"2026-07-05T05:32:38.492572Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:32:38.492572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.05008","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":"2026-07-05T05:32:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lard8z3+IHQIZ/40mKZBwJ/69X5wodzLGVL2G3jzDA8FZ076v4saiKzb2Ix8RYyW7Gb7pjcYgXoSYmgG2xENAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T16:20:49.753481Z"},"content_sha256":"43b702abeed73f5c53107ded655ac89cba20eee45a0b73c4ab15614642b3dc09","schema_version":"1.0","event_id":"sha256:43b702abeed73f5c53107ded655ac89cba20eee45a0b73c4ab15614642b3dc09"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:I5BZUEKG575Y62DCQILELP2WNL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Defective high-entropy oxide photocatalyst with high activity for CO2 conversion","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.chem-ph"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Kaveh Edalati, Makoto Arita, Masayoshi Fuji, Monotori Watanabe, Saeid Akrami, Tatsumi Ishihara, Yasushi Murakami","submitted_at":"2023-01-07T09:20:23Z","abstract_excerpt":"High-entropy oxides (HEOs), as a new family of materials with five or more principal cations, have shown promising properties for various applications. In this work and inspired by inherent defective and strained structure of HEOs, photocatalytic CO2 conversion is examined on a dual-phase TiZrNbHfTaO11 synthesized by a two-step high-pressure torsion mechanical alloying and high-temperature oxidation. The HEO, which had various structural defects, showed simultaneous photocatalytic activity for CO2 to CO and H2O to H2 conversion without the addition of a co-catalyst. The photocatalytic activity"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.05008","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/2301.05008/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":"2026-07-05T05:32:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s8xLT6MwYVvwKaRNvVJrchS4ZVbr9QcYMZzqyYxT7+fRmPrzi7/Cp0a7Nno3kxf5fFb07rb77CCpk9msGMbKDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T16:20:49.753850Z"},"content_sha256":"7e94637815fa0bb017ed226793ae0d9be3a558bc11356f1b2b85d61f016dd3ec","schema_version":"1.0","event_id":"sha256:7e94637815fa0bb017ed226793ae0d9be3a558bc11356f1b2b85d61f016dd3ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I5BZUEKG575Y62DCQILELP2WNL/bundle.json","state_url":"https://pith.science/pith/I5BZUEKG575Y62DCQILELP2WNL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I5BZUEKG575Y62DCQILELP2WNL/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":"2026-07-08T16:20:49Z","links":{"resolver":"https://pith.science/pith/I5BZUEKG575Y62DCQILELP2WNL","bundle":"https://pith.science/pith/I5BZUEKG575Y62DCQILELP2WNL/bundle.json","state":"https://pith.science/pith/I5BZUEKG575Y62DCQILELP2WNL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I5BZUEKG575Y62DCQILELP2WNL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:I5BZUEKG575Y62DCQILELP2WNL","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":"8f185e624d66f0d8c25d7e084556908670e1e0da52b3fbdb93644a3d2731b948","cross_cats_sorted":["physics.chem-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-01-07T09:20:23Z","title_canon_sha256":"2a2f8008fe3b7a083ab9476295838d7180dc6d75e5c0b036c504aa501220539a"},"schema_version":"1.0","source":{"id":"2301.05008","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.05008","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"arxiv_version","alias_value":"2301.05008v1","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.05008","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"pith_short_12","alias_value":"I5BZUEKG575Y","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"pith_short_16","alias_value":"I5BZUEKG575Y62DC","created_at":"2026-07-05T05:32:38Z"},{"alias_kind":"pith_short_8","alias_value":"I5BZUEKG","created_at":"2026-07-05T05:32:38Z"}],"graph_snapshots":[{"event_id":"sha256:7e94637815fa0bb017ed226793ae0d9be3a558bc11356f1b2b85d61f016dd3ec","target":"graph","created_at":"2026-07-05T05:32:38Z","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/2301.05008/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"High-entropy oxides (HEOs), as a new family of materials with five or more principal cations, have shown promising properties for various applications. In this work and inspired by inherent defective and strained structure of HEOs, photocatalytic CO2 conversion is examined on a dual-phase TiZrNbHfTaO11 synthesized by a two-step high-pressure torsion mechanical alloying and high-temperature oxidation. The HEO, which had various structural defects, showed simultaneous photocatalytic activity for CO2 to CO and H2O to H2 conversion without the addition of a co-catalyst. The photocatalytic activity","authors_text":"Kaveh Edalati, Makoto Arita, Masayoshi Fuji, Monotori Watanabe, Saeid Akrami, Tatsumi Ishihara, Yasushi Murakami","cross_cats":["physics.chem-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-01-07T09:20:23Z","title":"Defective high-entropy oxide photocatalyst with high activity for CO2 conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.05008","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":"sha256:43b702abeed73f5c53107ded655ac89cba20eee45a0b73c4ab15614642b3dc09","target":"record","created_at":"2026-07-05T05:32:38Z","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":"8f185e624d66f0d8c25d7e084556908670e1e0da52b3fbdb93644a3d2731b948","cross_cats_sorted":["physics.chem-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2023-01-07T09:20:23Z","title_canon_sha256":"2a2f8008fe3b7a083ab9476295838d7180dc6d75e5c0b036c504aa501220539a"},"schema_version":"1.0","source":{"id":"2301.05008","kind":"arxiv","version":1}},"canonical_sha256":"47439a1146effb8f6862821645bf566ad4f828d64dc107a81812905936f46b36","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47439a1146effb8f6862821645bf566ad4f828d64dc107a81812905936f46b36","first_computed_at":"2026-07-05T05:32:38.492572Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:32:38.492572Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+PPIlJgvfpSq3U6jwicTE0cyHJUPdSFat7dzZrPN2Zy37gk5yu4ryWju5WOPxnHSeDaOazAKqtlt562n2NOZDw==","signature_status":"signed_v1","signed_at":"2026-07-05T05:32:38.492922Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.05008","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43b702abeed73f5c53107ded655ac89cba20eee45a0b73c4ab15614642b3dc09","sha256:7e94637815fa0bb017ed226793ae0d9be3a558bc11356f1b2b85d61f016dd3ec"],"state_sha256":"6b312d5679dd82377186dcd448415ec12b8e4e48e5a6382320ce3a8618afba24"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ahn6tIOWx0z6qBEh871yM/ZGRxgX7aD7pFFZuhPvohrkkMr2OPr6liHgygdBtiYT7HWBCcScLxVUXldfhyP1Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T16:20:49.756218Z","bundle_sha256":"010b982e793f92aac369aace464d8499a8a1865a050deb25b1cf0b5cd9d3fc31"}}