{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:IOGVFVYUGO6UBRJJVLHR5JWQD4","short_pith_number":"pith:IOGVFVYU","canonical_record":{"source":{"id":"0809.4827","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-09-28T07:55:48Z","cross_cats_sorted":[],"title_canon_sha256":"cd58358931ecf015e97cdda2cb58648eab0d01ca0d7b5d1134950c613f31d752","abstract_canon_sha256":"4990dad42797173481da7dc086f82df3f048b5c7e8034875aec44353fb17d483"},"schema_version":"1.0"},"canonical_sha256":"438d52d71433bd40c529aacf1ea6d01f3ad5752bbe20fb7f5dd5dd9b71e636f4","source":{"kind":"arxiv","id":"0809.4827","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.4827","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"0809.4827v1","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.4827","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"IOGVFVYUGO6U","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"IOGVFVYUGO6UBRJJ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"IOGVFVYU","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:IOGVFVYUGO6UBRJJVLHR5JWQD4","target":"record","payload":{"canonical_record":{"source":{"id":"0809.4827","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-09-28T07:55:48Z","cross_cats_sorted":[],"title_canon_sha256":"cd58358931ecf015e97cdda2cb58648eab0d01ca0d7b5d1134950c613f31d752","abstract_canon_sha256":"4990dad42797173481da7dc086f82df3f048b5c7e8034875aec44353fb17d483"},"schema_version":"1.0"},"canonical_sha256":"438d52d71433bd40c529aacf1ea6d01f3ad5752bbe20fb7f5dd5dd9b71e636f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:33.368421Z","signature_b64":"/ULLBnqsQg2Hz8+zlZP7pzpBgI0IBycYc552FcELvhyVbs86ZMmeOwgxnTsdIqRaaKDn5Pd/5lT9wguJcCZ4Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"438d52d71433bd40c529aacf1ea6d01f3ad5752bbe20fb7f5dd5dd9b71e636f4","last_reissued_at":"2026-05-18T02:15:33.367761Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:33.367761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0809.4827","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":"2026-05-18T02:15:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dz9GkpnMBHOFbx/H30Y9tzzmSuDMj8hVp1gp86QscxLjDKxsjMHU6NrUIWBgnhpgvup3nTTMFoSMQHSNomduDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T00:49:21.018743Z"},"content_sha256":"5888c277d6ca1644afc4d08cc8f106c54129411c127db09d3a7bb4f9c5d6ca9f","schema_version":"1.0","event_id":"sha256:5888c277d6ca1644afc4d08cc8f106c54129411c127db09d3a7bb4f9c5d6ca9f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:IOGVFVYUGO6UBRJJVLHR5JWQD4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Generation of Nano-Catalyst Particles by Spinodal Nano-Decomposition in Perovskite","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Hidetoshi Kizaki, Hiroshi Katayama-Yoshida, Koichi Kusakabe, Soichiro Nogami","submitted_at":"2008-09-28T07:55:48Z","abstract_excerpt":"A new mechanism of nano-catalyst generation based on the spinodal nano-decomposition in self-regenerating perovskite catalysts for automotive-emissions control is proposed. To demonstrate existence of the spinodal nano-decomposition in real perovskite catalysts, we performed first-principles calculations to evaluate the free energy of La(Fe$_{1-x}$Pd$_x$)O$_3$ and La(Fe$_{1-x}$Rh$_x$)O$_3$. The result indicates appearance of a spinodal region in the phase diagram of each material. Formation of nano-catalyst particles in the perovskite host matrix is crucial for the self-regeneration of perovsk"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.4827","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":"2026-05-18T02:15:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0gTfPiZlM0ZNUpDuixC+roh5zwIQRz2Akso6udLiaUcgBbRLDE5OV73hOmRkxlA5zLzY/EWLGTbKgPOI429UBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T00:49:21.019079Z"},"content_sha256":"6545e91cbc670c9f6a6f6f35edd82de2fbd81c40517c08bbb38dfa6482863416","schema_version":"1.0","event_id":"sha256:6545e91cbc670c9f6a6f6f35edd82de2fbd81c40517c08bbb38dfa6482863416"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4/bundle.json","state_url":"https://pith.science/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4/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":"2026-07-05T00:49:21Z","links":{"resolver":"https://pith.science/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4","bundle":"https://pith.science/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4/bundle.json","state":"https://pith.science/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IOGVFVYUGO6UBRJJVLHR5JWQD4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:IOGVFVYUGO6UBRJJVLHR5JWQD4","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":"4990dad42797173481da7dc086f82df3f048b5c7e8034875aec44353fb17d483","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-09-28T07:55:48Z","title_canon_sha256":"cd58358931ecf015e97cdda2cb58648eab0d01ca0d7b5d1134950c613f31d752"},"schema_version":"1.0","source":{"id":"0809.4827","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0809.4827","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"arxiv_version","alias_value":"0809.4827v1","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0809.4827","created_at":"2026-05-18T02:15:33Z"},{"alias_kind":"pith_short_12","alias_value":"IOGVFVYUGO6U","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"IOGVFVYUGO6UBRJJ","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"IOGVFVYU","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:6545e91cbc670c9f6a6f6f35edd82de2fbd81c40517c08bbb38dfa6482863416","target":"graph","created_at":"2026-05-18T02:15:33Z","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":"A new mechanism of nano-catalyst generation based on the spinodal nano-decomposition in self-regenerating perovskite catalysts for automotive-emissions control is proposed. To demonstrate existence of the spinodal nano-decomposition in real perovskite catalysts, we performed first-principles calculations to evaluate the free energy of La(Fe$_{1-x}$Pd$_x$)O$_3$ and La(Fe$_{1-x}$Rh$_x$)O$_3$. The result indicates appearance of a spinodal region in the phase diagram of each material. Formation of nano-catalyst particles in the perovskite host matrix is crucial for the self-regeneration of perovsk","authors_text":"Hidetoshi Kizaki, Hiroshi Katayama-Yoshida, Koichi Kusakabe, Soichiro Nogami","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-09-28T07:55:48Z","title":"Generation of Nano-Catalyst Particles by Spinodal Nano-Decomposition in Perovskite"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0809.4827","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":"sha256:5888c277d6ca1644afc4d08cc8f106c54129411c127db09d3a7bb4f9c5d6ca9f","target":"record","created_at":"2026-05-18T02:15:33Z","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":"4990dad42797173481da7dc086f82df3f048b5c7e8034875aec44353fb17d483","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2008-09-28T07:55:48Z","title_canon_sha256":"cd58358931ecf015e97cdda2cb58648eab0d01ca0d7b5d1134950c613f31d752"},"schema_version":"1.0","source":{"id":"0809.4827","kind":"arxiv","version":1}},"canonical_sha256":"438d52d71433bd40c529aacf1ea6d01f3ad5752bbe20fb7f5dd5dd9b71e636f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"438d52d71433bd40c529aacf1ea6d01f3ad5752bbe20fb7f5dd5dd9b71e636f4","first_computed_at":"2026-05-18T02:15:33.367761Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:33.367761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/ULLBnqsQg2Hz8+zlZP7pzpBgI0IBycYc552FcELvhyVbs86ZMmeOwgxnTsdIqRaaKDn5Pd/5lT9wguJcCZ4Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:33.368421Z","signed_message":"canonical_sha256_bytes"},"source_id":"0809.4827","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5888c277d6ca1644afc4d08cc8f106c54129411c127db09d3a7bb4f9c5d6ca9f","sha256:6545e91cbc670c9f6a6f6f35edd82de2fbd81c40517c08bbb38dfa6482863416"],"state_sha256":"691bce566e9d71c378c676320f41585cf7220685a6af926e5c659d991f13aef5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a23D51N4onrb1v/VTKe9Iif1j8kC4j0HCFbaw34m9IZkHSDAF4gU3kqkFRLg2WhSD2BF8JiiuZU13As+l2UDDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T00:49:21.020835Z","bundle_sha256":"11defb71c4ad6329cd3d59605f4d31de3d5f81d163bc5a28e52d447d43aba58d"}}