{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:NUTGUTBTRUWMGS3JWFBOKDDTUX","short_pith_number":"pith:NUTGUTBT","canonical_record":{"source":{"id":"1612.06903","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-12-20T22:29:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"83244f5910254e6694738453d1b22412531c339104b385c993e4659030bae70f","abstract_canon_sha256":"438357fadd8e3eb73c431ac8b8ad34cf2e4f83f1b0f31a7ecbfd2cd4ca8d773f"},"schema_version":"1.0"},"canonical_sha256":"6d266a4c338d2cc34b69b142e50c73a5dfd7a20f423bcbffea0968966b58de67","source":{"kind":"arxiv","id":"1612.06903","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.06903","created_at":"2026-05-18T00:46:31Z"},{"alias_kind":"arxiv_version","alias_value":"1612.06903v2","created_at":"2026-05-18T00:46:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.06903","created_at":"2026-05-18T00:46:31Z"},{"alias_kind":"pith_short_12","alias_value":"NUTGUTBTRUWM","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"NUTGUTBTRUWMGS3J","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"NUTGUTBT","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:NUTGUTBTRUWMGS3JWFBOKDDTUX","target":"record","payload":{"canonical_record":{"source":{"id":"1612.06903","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-12-20T22:29:34Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"83244f5910254e6694738453d1b22412531c339104b385c993e4659030bae70f","abstract_canon_sha256":"438357fadd8e3eb73c431ac8b8ad34cf2e4f83f1b0f31a7ecbfd2cd4ca8d773f"},"schema_version":"1.0"},"canonical_sha256":"6d266a4c338d2cc34b69b142e50c73a5dfd7a20f423bcbffea0968966b58de67","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:31.379019Z","signature_b64":"/v1+dlvnO/ICQtIfwYxHS9r6f3b4lxJy2Ms+LMCIwNpM5zs6B2np8KvXYUKqVtDaJqlPnYlRal9KqsBEhfIXCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6d266a4c338d2cc34b69b142e50c73a5dfd7a20f423bcbffea0968966b58de67","last_reissued_at":"2026-05-18T00:46:31.378514Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:31.378514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1612.06903","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":"2026-05-18T00:46:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"URRbS5lEIXTgjJe64zGgRGMOj0zl3yupCwfb6DxxK+Hh5T/oBdINUqjVKA67duyPwISZUZYCW1VFy7QOH2V6DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:17:16.711108Z"},"content_sha256":"498ab8fb3c65e2e031fd5ac49b9afa74e5d6e9c740f3f7df779060df1c596bc0","schema_version":"1.0","event_id":"sha256:498ab8fb3c65e2e031fd5ac49b9afa74e5d6e9c740f3f7df779060df1c596bc0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:NUTGUTBTRUWMGS3JWFBOKDDTUX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Doping Dependence of Collective Spin and Orbital Excitations in Spin 1 Quantum Antiferromagnet La$_{2-x}$Sr$_x$NiO$_4$ Observed by X-rays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci"],"primary_cat":"cond-mat.str-el","authors_text":"A. T. Boothroyd, A. Uldry, B. Delley, D. J. Huang, D. Meyers, D. Prabhakaran, G. D. Gu, G. Fabbris, J. Okamoto, J. van den Brink, L. Hozoi, L. Xu, M. P. M. Dean, T. Schmitt, V. M. Katukuri, X. Liu, Z.-Y. Chen","submitted_at":"2016-12-20T22:29:34Z","abstract_excerpt":"We report the first empirical demonstration that resonant inelastic x-ray scattering (RIXS) is sensitive to \\emph{collective} magnetic excitations in $S=1$ systems by probing the Ni $L_3$-edge of La$_{2-x}$Sr$_x$NiO$_4$ ($x = 0, 0.33, 0.45$). The magnetic excitation peak is asymmetric, indicating the presence of single and multi spin-flip excitations. As the hole doping level is increased, the zone boundary magnon energy is suppressed at a much larger rate than that in hole doped cuprates. Based on the analysis of the orbital and charge excitations observed by RIXS, we argue that this differen"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.06903","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":"2026-05-18T00:46:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LIydoTRV/jishKf6nKdw18DTlYJ6KrYPQJ+Z98hT//8QXP7yy9mmQ3cht19RY1DTy8C3xJiN/YBKeWfdrp7bDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T00:17:16.711476Z"},"content_sha256":"bf6d1d597c7de3da936692c67e843373e61af1bc5e5c5087b0dacf56894dc555","schema_version":"1.0","event_id":"sha256:bf6d1d597c7de3da936692c67e843373e61af1bc5e5c5087b0dacf56894dc555"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX/bundle.json","state_url":"https://pith.science/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX/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":"2026-06-01T00:17:16Z","links":{"resolver":"https://pith.science/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX","bundle":"https://pith.science/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX/bundle.json","state":"https://pith.science/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NUTGUTBTRUWMGS3JWFBOKDDTUX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:NUTGUTBTRUWMGS3JWFBOKDDTUX","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":"438357fadd8e3eb73c431ac8b8ad34cf2e4f83f1b0f31a7ecbfd2cd4ca8d773f","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-12-20T22:29:34Z","title_canon_sha256":"83244f5910254e6694738453d1b22412531c339104b385c993e4659030bae70f"},"schema_version":"1.0","source":{"id":"1612.06903","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1612.06903","created_at":"2026-05-18T00:46:31Z"},{"alias_kind":"arxiv_version","alias_value":"1612.06903v2","created_at":"2026-05-18T00:46:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1612.06903","created_at":"2026-05-18T00:46:31Z"},{"alias_kind":"pith_short_12","alias_value":"NUTGUTBTRUWM","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"NUTGUTBTRUWMGS3J","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"NUTGUTBT","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:bf6d1d597c7de3da936692c67e843373e61af1bc5e5c5087b0dacf56894dc555","target":"graph","created_at":"2026-05-18T00:46:31Z","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 report the first empirical demonstration that resonant inelastic x-ray scattering (RIXS) is sensitive to \\emph{collective} magnetic excitations in $S=1$ systems by probing the Ni $L_3$-edge of La$_{2-x}$Sr$_x$NiO$_4$ ($x = 0, 0.33, 0.45$). The magnetic excitation peak is asymmetric, indicating the presence of single and multi spin-flip excitations. As the hole doping level is increased, the zone boundary magnon energy is suppressed at a much larger rate than that in hole doped cuprates. Based on the analysis of the orbital and charge excitations observed by RIXS, we argue that this differen","authors_text":"A. T. Boothroyd, A. Uldry, B. Delley, D. J. Huang, D. Meyers, D. Prabhakaran, G. D. Gu, G. Fabbris, J. Okamoto, J. van den Brink, L. Hozoi, L. Xu, M. P. M. Dean, T. Schmitt, V. M. Katukuri, X. Liu, Z.-Y. Chen","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-12-20T22:29:34Z","title":"Doping Dependence of Collective Spin and Orbital Excitations in Spin 1 Quantum Antiferromagnet La$_{2-x}$Sr$_x$NiO$_4$ Observed by X-rays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1612.06903","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":"sha256:498ab8fb3c65e2e031fd5ac49b9afa74e5d6e9c740f3f7df779060df1c596bc0","target":"record","created_at":"2026-05-18T00:46:31Z","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":"438357fadd8e3eb73c431ac8b8ad34cf2e4f83f1b0f31a7ecbfd2cd4ca8d773f","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2016-12-20T22:29:34Z","title_canon_sha256":"83244f5910254e6694738453d1b22412531c339104b385c993e4659030bae70f"},"schema_version":"1.0","source":{"id":"1612.06903","kind":"arxiv","version":2}},"canonical_sha256":"6d266a4c338d2cc34b69b142e50c73a5dfd7a20f423bcbffea0968966b58de67","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6d266a4c338d2cc34b69b142e50c73a5dfd7a20f423bcbffea0968966b58de67","first_computed_at":"2026-05-18T00:46:31.378514Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:31.378514Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"/v1+dlvnO/ICQtIfwYxHS9r6f3b4lxJy2Ms+LMCIwNpM5zs6B2np8KvXYUKqVtDaJqlPnYlRal9KqsBEhfIXCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:31.379019Z","signed_message":"canonical_sha256_bytes"},"source_id":"1612.06903","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:498ab8fb3c65e2e031fd5ac49b9afa74e5d6e9c740f3f7df779060df1c596bc0","sha256:bf6d1d597c7de3da936692c67e843373e61af1bc5e5c5087b0dacf56894dc555"],"state_sha256":"8a6d35031ba7a89120b3b496b301ef7fef248de5816dc7cdd00c869f1c0e6577"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JyCNyKQ5xHm2+n4Dq7gowLb5NIUps7xWQo3CUU/juSZfqO2QB8SkCMie3R/I9eJzYoTc0SDA2CacLBMUQVGMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T00:17:16.713510Z","bundle_sha256":"285a7328beb37eac7ff2448771594578f8d41f1ecb7374e38e6aae7254b0d96d"}}