{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:K73RZSAEWFHWRUEWKJTMDNSPSI","short_pith_number":"pith:K73RZSAE","canonical_record":{"source":{"id":"1112.5205","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-12-21T23:31:48Z","cross_cats_sorted":[],"title_canon_sha256":"6efb1813e48bba81bae5b9f16b4c627775cb01af71b18534560f7f9ac7b09452","abstract_canon_sha256":"2b97d36570aed8721a767261a27002d8923a7d688cef1b90ebfcbb04e22219e1"},"schema_version":"1.0"},"canonical_sha256":"57f71cc804b14f68d0965266c1b64f921147f9292f7c3ee48d8ff884ea8ae16b","source":{"kind":"arxiv","id":"1112.5205","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.5205","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"1112.5205v2","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.5205","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"K73RZSAEWFHW","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"K73RZSAEWFHWRUEW","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"K73RZSAE","created_at":"2026-05-18T12:26:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:K73RZSAEWFHWRUEWKJTMDNSPSI","target":"record","payload":{"canonical_record":{"source":{"id":"1112.5205","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-12-21T23:31:48Z","cross_cats_sorted":[],"title_canon_sha256":"6efb1813e48bba81bae5b9f16b4c627775cb01af71b18534560f7f9ac7b09452","abstract_canon_sha256":"2b97d36570aed8721a767261a27002d8923a7d688cef1b90ebfcbb04e22219e1"},"schema_version":"1.0"},"canonical_sha256":"57f71cc804b14f68d0965266c1b64f921147f9292f7c3ee48d8ff884ea8ae16b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:40:36.606783Z","signature_b64":"UdjSTzBSznSfwgzrbyWxb9PvCU4653Cx6NDERnzZWFOwq2BHpSgBjLFiZSLVTqiryRA+WMCDG1C1TYYgt+DuCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"57f71cc804b14f68d0965266c1b64f921147f9292f7c3ee48d8ff884ea8ae16b","last_reissued_at":"2026-05-18T03:40:36.606244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:40:36.606244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1112.5205","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sl1BnRUU20SDEyFNHD2LZ5s8uyn2lJbH1mDO4/YKj1qBDtmMY4Ois3xbmhMbEfadHfC+2qpAR8wrD4R6MSZABA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:08:01.555516Z"},"content_sha256":"062467c09287fc678f5066507b6bbf3ef6c9cbfd7812be1093c085f6bdfca808","schema_version":"1.0","event_id":"sha256:062467c09287fc678f5066507b6bbf3ef6c9cbfd7812be1093c085f6bdfca808"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:K73RZSAEWFHWRUEWKJTMDNSPSI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin-phonon coupling effects in transition-metal perovskites:a DFT+$U$ and hybrid-functional study","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alessandro Stroppa, David Vanderbilt, Jiawang Hong, Jorge \\'I\\~niguez, Silvia Picozzi","submitted_at":"2011-12-21T23:31:48Z","abstract_excerpt":"Spin-phonon coupling effects, as reflected in phonon frequency shifts between ferromagnetic (FM) and G-type antiferromagnetic (AFM) configurations in cubic CaMnO$_3$, SrMnO$_3$, BaMnO$_3$, LaCrO$_3$, LaFeO$_3$ and La$_2$(CrFe)O$_6$, are investigated using density-functional methods. The calculations are carried out both with a hybrid-functional (HSE) approach and with a DFT+$U$ approach using a $U$ that has been fitted to HSE calculations. The phonon frequency shifts obtained in going from the FM to the AFM spin configuration agree well with those computed directly from the more accurate HSE a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.5205","kind":"arxiv","version":2},"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":"2026-05-18T03:40:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hnB7yMz8ittySsAhZWfLFUARfhc53D8NKFKXNAoDupMtNz8BiJjI+mliXCfYEzgUIGTbgEHFBwXWX5r8igVQBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:08:01.555872Z"},"content_sha256":"7b51a45c2af786eedcbbd10aae6ad7459a5a1307ffeb88bfc94018f14458ae7f","schema_version":"1.0","event_id":"sha256:7b51a45c2af786eedcbbd10aae6ad7459a5a1307ffeb88bfc94018f14458ae7f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K73RZSAEWFHWRUEWKJTMDNSPSI/bundle.json","state_url":"https://pith.science/pith/K73RZSAEWFHWRUEWKJTMDNSPSI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K73RZSAEWFHWRUEWKJTMDNSPSI/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":"2026-06-01T03:08:01Z","links":{"resolver":"https://pith.science/pith/K73RZSAEWFHWRUEWKJTMDNSPSI","bundle":"https://pith.science/pith/K73RZSAEWFHWRUEWKJTMDNSPSI/bundle.json","state":"https://pith.science/pith/K73RZSAEWFHWRUEWKJTMDNSPSI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K73RZSAEWFHWRUEWKJTMDNSPSI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:K73RZSAEWFHWRUEWKJTMDNSPSI","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":"2b97d36570aed8721a767261a27002d8923a7d688cef1b90ebfcbb04e22219e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-12-21T23:31:48Z","title_canon_sha256":"6efb1813e48bba81bae5b9f16b4c627775cb01af71b18534560f7f9ac7b09452"},"schema_version":"1.0","source":{"id":"1112.5205","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1112.5205","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"arxiv_version","alias_value":"1112.5205v2","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1112.5205","created_at":"2026-05-18T03:40:36Z"},{"alias_kind":"pith_short_12","alias_value":"K73RZSAEWFHW","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_16","alias_value":"K73RZSAEWFHWRUEW","created_at":"2026-05-18T12:26:32Z"},{"alias_kind":"pith_short_8","alias_value":"K73RZSAE","created_at":"2026-05-18T12:26:32Z"}],"graph_snapshots":[{"event_id":"sha256:7b51a45c2af786eedcbbd10aae6ad7459a5a1307ffeb88bfc94018f14458ae7f","target":"graph","created_at":"2026-05-18T03:40:36Z","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":"Spin-phonon coupling effects, as reflected in phonon frequency shifts between ferromagnetic (FM) and G-type antiferromagnetic (AFM) configurations in cubic CaMnO$_3$, SrMnO$_3$, BaMnO$_3$, LaCrO$_3$, LaFeO$_3$ and La$_2$(CrFe)O$_6$, are investigated using density-functional methods. The calculations are carried out both with a hybrid-functional (HSE) approach and with a DFT+$U$ approach using a $U$ that has been fitted to HSE calculations. The phonon frequency shifts obtained in going from the FM to the AFM spin configuration agree well with those computed directly from the more accurate HSE a","authors_text":"Alessandro Stroppa, David Vanderbilt, Jiawang Hong, Jorge \\'I\\~niguez, Silvia Picozzi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-12-21T23:31:48Z","title":"Spin-phonon coupling effects in transition-metal perovskites:a DFT+$U$ and hybrid-functional study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.5205","kind":"arxiv","version":2},"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":"sha256:062467c09287fc678f5066507b6bbf3ef6c9cbfd7812be1093c085f6bdfca808","target":"record","created_at":"2026-05-18T03:40:36Z","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":"2b97d36570aed8721a767261a27002d8923a7d688cef1b90ebfcbb04e22219e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2011-12-21T23:31:48Z","title_canon_sha256":"6efb1813e48bba81bae5b9f16b4c627775cb01af71b18534560f7f9ac7b09452"},"schema_version":"1.0","source":{"id":"1112.5205","kind":"arxiv","version":2}},"canonical_sha256":"57f71cc804b14f68d0965266c1b64f921147f9292f7c3ee48d8ff884ea8ae16b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"57f71cc804b14f68d0965266c1b64f921147f9292f7c3ee48d8ff884ea8ae16b","first_computed_at":"2026-05-18T03:40:36.606244Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:40:36.606244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UdjSTzBSznSfwgzrbyWxb9PvCU4653Cx6NDERnzZWFOwq2BHpSgBjLFiZSLVTqiryRA+WMCDG1C1TYYgt+DuCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:40:36.606783Z","signed_message":"canonical_sha256_bytes"},"source_id":"1112.5205","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:062467c09287fc678f5066507b6bbf3ef6c9cbfd7812be1093c085f6bdfca808","sha256:7b51a45c2af786eedcbbd10aae6ad7459a5a1307ffeb88bfc94018f14458ae7f"],"state_sha256":"e5bbd281e8c504715e18c00a97f9c0d73d9ffbdff2bddfd7e39f4dc70c55168b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dDAPR54AhWTU4vtKWKAa6RuC0EY0oJUBXcv43Bbv2ThZkNnXZOsbO7Y36vyyhKjiYpohZkFeo3yfD3+/KybLBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T03:08:01.558008Z","bundle_sha256":"4dc6b22a7be5700a46dd987d8fe6656e23cf5c73bd2daa221118b58fe5575d48"}}