{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:4PK3QK7NXBZNFXU63LUM237VJS","short_pith_number":"pith:4PK3QK7N","canonical_record":{"source":{"id":"1204.5824","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-04-26T03:36:05Z","cross_cats_sorted":[],"title_canon_sha256":"5466defde4bc6f1f77f6a52707aeba62f42b1088e1ee521f9fd528112cd8ce6a","abstract_canon_sha256":"590cccf2d65c2eee3f53a7ce9b2f8f5152fb3ab56efb329ba964800e6ebe8ce7"},"schema_version":"1.0"},"canonical_sha256":"e3d5b82bedb872d2de9edae8cd6ff54cb8a2149d1c4a464893954dc0cea5d3ca","source":{"kind":"arxiv","id":"1204.5824","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5824","created_at":"2026-05-18T00:37:37Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5824v1","created_at":"2026-05-18T00:37:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5824","created_at":"2026-05-18T00:37:37Z"},{"alias_kind":"pith_short_12","alias_value":"4PK3QK7NXBZN","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4PK3QK7NXBZNFXU6","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4PK3QK7N","created_at":"2026-05-18T12:26:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:4PK3QK7NXBZNFXU63LUM237VJS","target":"record","payload":{"canonical_record":{"source":{"id":"1204.5824","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-04-26T03:36:05Z","cross_cats_sorted":[],"title_canon_sha256":"5466defde4bc6f1f77f6a52707aeba62f42b1088e1ee521f9fd528112cd8ce6a","abstract_canon_sha256":"590cccf2d65c2eee3f53a7ce9b2f8f5152fb3ab56efb329ba964800e6ebe8ce7"},"schema_version":"1.0"},"canonical_sha256":"e3d5b82bedb872d2de9edae8cd6ff54cb8a2149d1c4a464893954dc0cea5d3ca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:37:37.713983Z","signature_b64":"/jt0B0hArxvM3JHNaZuaZIN5hYUhuxdgNfLCiG/107RsUlrkgeR/i+ZYt7UBzbfdgb+dkYwGHHG4ByY4miYdAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3d5b82bedb872d2de9edae8cd6ff54cb8a2149d1c4a464893954dc0cea5d3ca","last_reissued_at":"2026-05-18T00:37:37.713209Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:37:37.713209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1204.5824","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":"2026-05-18T00:37:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SAPzbz4MJZQqlvqJsybdxGb4aHWF0qVLvDRwmSALjrzVVBAqfRZuCmtdIG3UtIrcuQBmYwJnQw530yyvFuYnAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T16:56:50.405988Z"},"content_sha256":"db8ef4803a8ea45b175d30a010a3ba62a0bb6fbbabc55203f8fcc381a2d13ba3","schema_version":"1.0","event_id":"sha256:db8ef4803a8ea45b175d30a010a3ba62a0bb6fbbabc55203f8fcc381a2d13ba3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:4PK3QK7NXBZNFXU63LUM237VJS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Elastic and electronic properties of fluorite RuO_2 from first principle","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A.M. Guo, J. Li, Q. Liu, R.F. Linghu, X.D. Yang, Y.D. Guo, Z.J. Yang, Z. Wang","submitted_at":"2012-04-26T03:36:05Z","abstract_excerpt":"The elastic, thermodynamic, and electronic properties of fluorite RuO_2 under high pressure are investigated by plane-wave pseudopotential density functional theory. The optimized lattice parameters, elastic constants, bulk modulus, and shear modulus are consistent with other theoretical values. The phase transition from modified fluorite-type to fluorite is 88 GPa (by localized density approximation, LDA) or 115.5 GPa (by generalized gradient approximation, GGA). The Young's modulus and Lam\\'e's coefficients are also studied under high pressure. The structure turned out to be stable for the p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5824","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":"2026-05-18T00:37:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PKM/Q1JqEcpyYJ3mlCLz6gfQQADYCdEbXt8hH3P2Z0OeT4IgsGLwX74tSgy6UgfAXgDjY1VHiaqAIcvQ33/WDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T16:56:50.406348Z"},"content_sha256":"f3f76c47bc107492edd839e1ab9c1f9b0aa180aae741a7cadb434c0eaa4ad75d","schema_version":"1.0","event_id":"sha256:f3f76c47bc107492edd839e1ab9c1f9b0aa180aae741a7cadb434c0eaa4ad75d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4PK3QK7NXBZNFXU63LUM237VJS/bundle.json","state_url":"https://pith.science/pith/4PK3QK7NXBZNFXU63LUM237VJS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4PK3QK7NXBZNFXU63LUM237VJS/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":"2026-06-02T16:56:50Z","links":{"resolver":"https://pith.science/pith/4PK3QK7NXBZNFXU63LUM237VJS","bundle":"https://pith.science/pith/4PK3QK7NXBZNFXU63LUM237VJS/bundle.json","state":"https://pith.science/pith/4PK3QK7NXBZNFXU63LUM237VJS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4PK3QK7NXBZNFXU63LUM237VJS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:4PK3QK7NXBZNFXU63LUM237VJS","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":"590cccf2d65c2eee3f53a7ce9b2f8f5152fb3ab56efb329ba964800e6ebe8ce7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-04-26T03:36:05Z","title_canon_sha256":"5466defde4bc6f1f77f6a52707aeba62f42b1088e1ee521f9fd528112cd8ce6a"},"schema_version":"1.0","source":{"id":"1204.5824","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1204.5824","created_at":"2026-05-18T00:37:37Z"},{"alias_kind":"arxiv_version","alias_value":"1204.5824v1","created_at":"2026-05-18T00:37:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.5824","created_at":"2026-05-18T00:37:37Z"},{"alias_kind":"pith_short_12","alias_value":"4PK3QK7NXBZN","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_16","alias_value":"4PK3QK7NXBZNFXU6","created_at":"2026-05-18T12:26:53Z"},{"alias_kind":"pith_short_8","alias_value":"4PK3QK7N","created_at":"2026-05-18T12:26:53Z"}],"graph_snapshots":[{"event_id":"sha256:f3f76c47bc107492edd839e1ab9c1f9b0aa180aae741a7cadb434c0eaa4ad75d","target":"graph","created_at":"2026-05-18T00:37:37Z","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":"The elastic, thermodynamic, and electronic properties of fluorite RuO_2 under high pressure are investigated by plane-wave pseudopotential density functional theory. The optimized lattice parameters, elastic constants, bulk modulus, and shear modulus are consistent with other theoretical values. The phase transition from modified fluorite-type to fluorite is 88 GPa (by localized density approximation, LDA) or 115.5 GPa (by generalized gradient approximation, GGA). The Young's modulus and Lam\\'e's coefficients are also studied under high pressure. The structure turned out to be stable for the p","authors_text":"A.M. Guo, J. Li, Q. Liu, R.F. Linghu, X.D. Yang, Y.D. Guo, Z.J. Yang, Z. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-04-26T03:36:05Z","title":"Elastic and electronic properties of fluorite RuO_2 from first principle"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.5824","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:db8ef4803a8ea45b175d30a010a3ba62a0bb6fbbabc55203f8fcc381a2d13ba3","target":"record","created_at":"2026-05-18T00:37:37Z","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":"590cccf2d65c2eee3f53a7ce9b2f8f5152fb3ab56efb329ba964800e6ebe8ce7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2012-04-26T03:36:05Z","title_canon_sha256":"5466defde4bc6f1f77f6a52707aeba62f42b1088e1ee521f9fd528112cd8ce6a"},"schema_version":"1.0","source":{"id":"1204.5824","kind":"arxiv","version":1}},"canonical_sha256":"e3d5b82bedb872d2de9edae8cd6ff54cb8a2149d1c4a464893954dc0cea5d3ca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e3d5b82bedb872d2de9edae8cd6ff54cb8a2149d1c4a464893954dc0cea5d3ca","first_computed_at":"2026-05-18T00:37:37.713209Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:37:37.713209Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/jt0B0hArxvM3JHNaZuaZIN5hYUhuxdgNfLCiG/107RsUlrkgeR/i+ZYt7UBzbfdgb+dkYwGHHG4ByY4miYdAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:37:37.713983Z","signed_message":"canonical_sha256_bytes"},"source_id":"1204.5824","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db8ef4803a8ea45b175d30a010a3ba62a0bb6fbbabc55203f8fcc381a2d13ba3","sha256:f3f76c47bc107492edd839e1ab9c1f9b0aa180aae741a7cadb434c0eaa4ad75d"],"state_sha256":"257d78fe3efdc5b63078ce11789fc9a4ed288f4c46c669761c729c36bac257b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"srkIsvL7Ik7+SWBiaEB4iK4394vzAL/9DTV09CZXIIcPuAZVUsNeZW+DKezM5QZg1v7hUanWT14snc/veej9Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T16:56:50.408473Z","bundle_sha256":"f2bdc00e1dfd07550904dd2a547441812e26ac89e55584737253157debf5ff41"}}