{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:FEA4PY6OJHPCYTU4DRWL64US3T","short_pith_number":"pith:FEA4PY6O","canonical_record":{"source":{"id":"1806.10499","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-06-27T14:28:04Z","cross_cats_sorted":[],"title_canon_sha256":"f2566890d95efece4895bf9007ca630a21baf3c12e29eb22d00f87e1ee1df92a","abstract_canon_sha256":"7464038f131d18bed3ed48a25ebdeef29567aec953a6880b70636d6e6b9ef796"},"schema_version":"1.0"},"canonical_sha256":"2901c7e3ce49de2c4e9c1c6cbf7292dcf740e5af8da91713ef22664d3117d448","source":{"kind":"arxiv","id":"1806.10499","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.10499","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"arxiv_version","alias_value":"1806.10499v1","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10499","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"pith_short_12","alias_value":"FEA4PY6OJHPC","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"FEA4PY6OJHPCYTU4","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"FEA4PY6O","created_at":"2026-05-18T12:32:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:FEA4PY6OJHPCYTU4DRWL64US3T","target":"record","payload":{"canonical_record":{"source":{"id":"1806.10499","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-06-27T14:28:04Z","cross_cats_sorted":[],"title_canon_sha256":"f2566890d95efece4895bf9007ca630a21baf3c12e29eb22d00f87e1ee1df92a","abstract_canon_sha256":"7464038f131d18bed3ed48a25ebdeef29567aec953a6880b70636d6e6b9ef796"},"schema_version":"1.0"},"canonical_sha256":"2901c7e3ce49de2c4e9c1c6cbf7292dcf740e5af8da91713ef22664d3117d448","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:21.565355Z","signature_b64":"pwqmFZXT5tqbQ5LVGxhnKNCNnng2VlsK640q+Ia5P5WTR6k6nIrq4/PRIi1mm7Pgn05tg0I6SxWvnczYJX1DCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2901c7e3ce49de2c4e9c1c6cbf7292dcf740e5af8da91713ef22664d3117d448","last_reissued_at":"2026-05-18T00:10:21.564814Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:21.564814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1806.10499","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":"2026-05-18T00:10:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RZ/cu5bOlXZX56tI9JPAaxinUjpyVjRVNk+CesT33DQz952HDV23O6hQU7yxTQt5ODHhvr98Hm/DQM8RAkhcAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:47:03.662307Z"},"content_sha256":"8ba645021f70aa0f5d1406104c920602d341f1722b50ae99591b1cc7d67b1d88","schema_version":"1.0","event_id":"sha256:8ba645021f70aa0f5d1406104c920602d341f1722b50ae99591b1cc7d67b1d88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:FEA4PY6OJHPCYTU4DRWL64US3T","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Site-selective Probe of Magnetic Excitations in Rare-earth Nickelates using Resonant Inelastic X-ray Scattering","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"B. Keimer, D. Betto, E. Benckiser, G. Cristiani, G. Khaliullin, G. Logvenov, H.-H. Kim, H. Suzuki, K. F\\\"ursich, M. Le Tacon, M. Minola, M.W. Haverkort, N. B. Brookes, Y. Lu","submitted_at":"2018-06-27T14:28:04Z","abstract_excerpt":"We have used high-resolution resonant inelastic x-ray scattering (RIXS) to study a thin film of NdNiO$_3$, a compound whose unusual spin- and bond-ordered electronic ground state has been of long-standing interest. Below the magnetic ordering temperature, we observe well-defined collective magnon excitations along different high-symmetry directions in momentum space. The magnetic spectra depend strongly on the incident photon energy, which we attribute to RIXS coupling to different local electronic configurations of the expanded and compressed NiO$_6$ octahedra in the bond-ordered state. Both "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10499","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":"2026-05-18T00:10:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9j+HXJJYqF4he/UMznSE9Bh2CRU2r8Gl/pgQT4SQSmSUYKbYT84ctvL73aepKnu+fpQFTy4fj5FYO3XK4pB9Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T09:47:03.662991Z"},"content_sha256":"fb7f699866f005ec0cc90621062b70dbf1185cdb13df7adea5e0ab7b13e095a5","schema_version":"1.0","event_id":"sha256:fb7f699866f005ec0cc90621062b70dbf1185cdb13df7adea5e0ab7b13e095a5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FEA4PY6OJHPCYTU4DRWL64US3T/bundle.json","state_url":"https://pith.science/pith/FEA4PY6OJHPCYTU4DRWL64US3T/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FEA4PY6OJHPCYTU4DRWL64US3T/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":"2026-05-26T09:47:03Z","links":{"resolver":"https://pith.science/pith/FEA4PY6OJHPCYTU4DRWL64US3T","bundle":"https://pith.science/pith/FEA4PY6OJHPCYTU4DRWL64US3T/bundle.json","state":"https://pith.science/pith/FEA4PY6OJHPCYTU4DRWL64US3T/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FEA4PY6OJHPCYTU4DRWL64US3T/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:FEA4PY6OJHPCYTU4DRWL64US3T","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":"7464038f131d18bed3ed48a25ebdeef29567aec953a6880b70636d6e6b9ef796","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-06-27T14:28:04Z","title_canon_sha256":"f2566890d95efece4895bf9007ca630a21baf3c12e29eb22d00f87e1ee1df92a"},"schema_version":"1.0","source":{"id":"1806.10499","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1806.10499","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"arxiv_version","alias_value":"1806.10499v1","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.10499","created_at":"2026-05-18T00:10:21Z"},{"alias_kind":"pith_short_12","alias_value":"FEA4PY6OJHPC","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_16","alias_value":"FEA4PY6OJHPCYTU4","created_at":"2026-05-18T12:32:22Z"},{"alias_kind":"pith_short_8","alias_value":"FEA4PY6O","created_at":"2026-05-18T12:32:22Z"}],"graph_snapshots":[{"event_id":"sha256:fb7f699866f005ec0cc90621062b70dbf1185cdb13df7adea5e0ab7b13e095a5","target":"graph","created_at":"2026-05-18T00:10:21Z","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":"We have used high-resolution resonant inelastic x-ray scattering (RIXS) to study a thin film of NdNiO$_3$, a compound whose unusual spin- and bond-ordered electronic ground state has been of long-standing interest. Below the magnetic ordering temperature, we observe well-defined collective magnon excitations along different high-symmetry directions in momentum space. The magnetic spectra depend strongly on the incident photon energy, which we attribute to RIXS coupling to different local electronic configurations of the expanded and compressed NiO$_6$ octahedra in the bond-ordered state. Both ","authors_text":"B. Keimer, D. Betto, E. Benckiser, G. Cristiani, G. Khaliullin, G. Logvenov, H.-H. Kim, H. Suzuki, K. F\\\"ursich, M. Le Tacon, M. Minola, M.W. Haverkort, N. B. Brookes, Y. Lu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-06-27T14:28:04Z","title":"Site-selective Probe of Magnetic Excitations in Rare-earth Nickelates using Resonant Inelastic X-ray Scattering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.10499","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":"sha256:8ba645021f70aa0f5d1406104c920602d341f1722b50ae99591b1cc7d67b1d88","target":"record","created_at":"2026-05-18T00:10:21Z","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":"7464038f131d18bed3ed48a25ebdeef29567aec953a6880b70636d6e6b9ef796","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-06-27T14:28:04Z","title_canon_sha256":"f2566890d95efece4895bf9007ca630a21baf3c12e29eb22d00f87e1ee1df92a"},"schema_version":"1.0","source":{"id":"1806.10499","kind":"arxiv","version":1}},"canonical_sha256":"2901c7e3ce49de2c4e9c1c6cbf7292dcf740e5af8da91713ef22664d3117d448","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2901c7e3ce49de2c4e9c1c6cbf7292dcf740e5af8da91713ef22664d3117d448","first_computed_at":"2026-05-18T00:10:21.564814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:10:21.564814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pwqmFZXT5tqbQ5LVGxhnKNCNnng2VlsK640q+Ia5P5WTR6k6nIrq4/PRIi1mm7Pgn05tg0I6SxWvnczYJX1DCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:10:21.565355Z","signed_message":"canonical_sha256_bytes"},"source_id":"1806.10499","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ba645021f70aa0f5d1406104c920602d341f1722b50ae99591b1cc7d67b1d88","sha256:fb7f699866f005ec0cc90621062b70dbf1185cdb13df7adea5e0ab7b13e095a5"],"state_sha256":"ddd76e09331f4151150e96cff8db703495572ef1b241765106210172797ce5a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wdFC525I2FtyPUEnWaXR8cBdsqK9ryfOFnw/NQ3IBBhKwcKPAcNHbKNaguEHeRMIt1zBpC1Z1Cn9xYpqOqUfCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T09:47:03.666945Z","bundle_sha256":"5afc24056c72a2f1b514a0db34610ff48ece988c3d8c8236dc043f151ba1f72e"}}