{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:F4FJBKOMFIEVOEV7ZO4V3VPVFK","short_pith_number":"pith:F4FJBKOM","canonical_record":{"source":{"id":"1307.3932","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T13:31:03Z","cross_cats_sorted":[],"title_canon_sha256":"85a7d09b06cb71339e4b790b18776b445e11edc297db6ee9ea81a4dc1d8d40cf","abstract_canon_sha256":"c2c7767da2f16905205ff649dcc0f4a727681061887624d3747364fddf4cb0da"},"schema_version":"1.0"},"canonical_sha256":"2f0a90a9cc2a095712bfcbb95dd5f52a8cf773f5a300abd4a16144762a508ba5","source":{"kind":"arxiv","id":"1307.3932","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3932","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3932v1","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3932","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"pith_short_12","alias_value":"F4FJBKOMFIEV","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"F4FJBKOMFIEVOEV7","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"F4FJBKOM","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:F4FJBKOMFIEVOEV7ZO4V3VPVFK","target":"record","payload":{"canonical_record":{"source":{"id":"1307.3932","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T13:31:03Z","cross_cats_sorted":[],"title_canon_sha256":"85a7d09b06cb71339e4b790b18776b445e11edc297db6ee9ea81a4dc1d8d40cf","abstract_canon_sha256":"c2c7767da2f16905205ff649dcc0f4a727681061887624d3747364fddf4cb0da"},"schema_version":"1.0"},"canonical_sha256":"2f0a90a9cc2a095712bfcbb95dd5f52a8cf773f5a300abd4a16144762a508ba5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:18:19.742005Z","signature_b64":"NRV3zpzfmZvpmvKvp1L+7AcgB2frJYyC4ywPBKRrMo8XpA2bUZ6AmzhaGaXcGhLzytI61o1ic0MY9Bzom2pMCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f0a90a9cc2a095712bfcbb95dd5f52a8cf773f5a300abd4a16144762a508ba5","last_reissued_at":"2026-05-18T03:18:19.741563Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:18:19.741563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.3932","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":"2026-05-18T03:18:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zelkUm/huO0NzPIgruAsxjqdVtPzNRGvZ47Rf6/Z54PoW2KLsx1NBOQL5Ou3Q4RIc+S4MDCpMfPpER4k8QypDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T07:28:08.337240Z"},"content_sha256":"0653a14bff6730dc0ef8eddab25b6d44720e93384b951976deaec7feb6c8091b","schema_version":"1.0","event_id":"sha256:0653a14bff6730dc0ef8eddab25b6d44720e93384b951976deaec7feb6c8091b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:F4FJBKOMFIEVOEV7ZO4V3VPVFK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Topotactic phase transformation of the brownmillerite SrCoO2.5 to the perovskite SrCoO3-\\delta","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chang Uk Jung, Hiromichi Ohta, Ho Nyung Lee, Hyoungjeen Jeen, John W. Freeland, Woo Seok Choi","submitted_at":"2013-07-15T13:31:03Z","abstract_excerpt":"Oxygen stoichiometry is one of the most important elements in determining the physical properties of transition metal oxides (TMOs). A small fractional change in the oxygen content, resulting in the variation of valence state of the transition metal, can drastically modify the materials functionalities. In particular, TMOs with mixed valences have attracted attention for many energy applications. Previous studies also showed that the ability to control the number of d-band electron populations and detailed spin configurations is critical for improved catalytic performance of TMOs. In this cont"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3932","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":"2026-05-18T03:18:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gn8YJBZSA9dxzEhjWI9rbTebmGY/U3ULhm8jZRQNKw67FyAW4FKpc24PM6RZDZY7Ka4G9YDkEpprbDlR7TAoAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-19T07:28:08.337608Z"},"content_sha256":"98efa862395d875b3b5329fae04c5f2d4e8a05fe431ebcfe9b6a54c72d50a856","schema_version":"1.0","event_id":"sha256:98efa862395d875b3b5329fae04c5f2d4e8a05fe431ebcfe9b6a54c72d50a856"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK/bundle.json","state_url":"https://pith.science/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK/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":"2026-05-19T07:28:08Z","links":{"resolver":"https://pith.science/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK","bundle":"https://pith.science/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK/bundle.json","state":"https://pith.science/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F4FJBKOMFIEVOEV7ZO4V3VPVFK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:F4FJBKOMFIEVOEV7ZO4V3VPVFK","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":"c2c7767da2f16905205ff649dcc0f4a727681061887624d3747364fddf4cb0da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T13:31:03Z","title_canon_sha256":"85a7d09b06cb71339e4b790b18776b445e11edc297db6ee9ea81a4dc1d8d40cf"},"schema_version":"1.0","source":{"id":"1307.3932","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.3932","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"arxiv_version","alias_value":"1307.3932v1","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3932","created_at":"2026-05-18T03:18:19Z"},{"alias_kind":"pith_short_12","alias_value":"F4FJBKOMFIEV","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"F4FJBKOMFIEVOEV7","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"F4FJBKOM","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:98efa862395d875b3b5329fae04c5f2d4e8a05fe431ebcfe9b6a54c72d50a856","target":"graph","created_at":"2026-05-18T03:18:19Z","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":"Oxygen stoichiometry is one of the most important elements in determining the physical properties of transition metal oxides (TMOs). A small fractional change in the oxygen content, resulting in the variation of valence state of the transition metal, can drastically modify the materials functionalities. In particular, TMOs with mixed valences have attracted attention for many energy applications. Previous studies also showed that the ability to control the number of d-band electron populations and detailed spin configurations is critical for improved catalytic performance of TMOs. In this cont","authors_text":"Chang Uk Jung, Hiromichi Ohta, Ho Nyung Lee, Hyoungjeen Jeen, John W. Freeland, Woo Seok Choi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T13:31:03Z","title":"Topotactic phase transformation of the brownmillerite SrCoO2.5 to the perovskite SrCoO3-\\delta"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3932","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":"sha256:0653a14bff6730dc0ef8eddab25b6d44720e93384b951976deaec7feb6c8091b","target":"record","created_at":"2026-05-18T03:18:19Z","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":"c2c7767da2f16905205ff649dcc0f4a727681061887624d3747364fddf4cb0da","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-07-15T13:31:03Z","title_canon_sha256":"85a7d09b06cb71339e4b790b18776b445e11edc297db6ee9ea81a4dc1d8d40cf"},"schema_version":"1.0","source":{"id":"1307.3932","kind":"arxiv","version":1}},"canonical_sha256":"2f0a90a9cc2a095712bfcbb95dd5f52a8cf773f5a300abd4a16144762a508ba5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f0a90a9cc2a095712bfcbb95dd5f52a8cf773f5a300abd4a16144762a508ba5","first_computed_at":"2026-05-18T03:18:19.741563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:18:19.741563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NRV3zpzfmZvpmvKvp1L+7AcgB2frJYyC4ywPBKRrMo8XpA2bUZ6AmzhaGaXcGhLzytI61o1ic0MY9Bzom2pMCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:18:19.742005Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.3932","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0653a14bff6730dc0ef8eddab25b6d44720e93384b951976deaec7feb6c8091b","sha256:98efa862395d875b3b5329fae04c5f2d4e8a05fe431ebcfe9b6a54c72d50a856"],"state_sha256":"fef2fdf60062c413e341cda6658e0f98ec149086fd1b8b6725727aac2facf581"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"33Uz59BCdfAjn8iB4yHvjfCi0Jk0MDDsTSekWXUepQpPxx5T8FMEMijgg5IhO8SSzsGyfSxDZlmtV4xyv1kQBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-19T07:28:08.339275Z","bundle_sha256":"64453bc8b14c195b116454a560ba74a8c68f28118e8aec31d8ca6cf625734bc8"}}