{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:OMIWLKIEDUCWIODZNJS4BGF62L","short_pith_number":"pith:OMIWLKIE","canonical_record":{"source":{"id":"1511.06867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-11-21T11:27:08Z","cross_cats_sorted":[],"title_canon_sha256":"3101ace32fd274285c7906987ccfd26971fedfe6d41501319deffd44d7f38e38","abstract_canon_sha256":"9c53c5fd64149d0707e58e8d05a2a696b64b07801aa2519473cd1ae6f26c8cd4"},"schema_version":"1.0"},"canonical_sha256":"731165a9041d056438796a65c098bed2ec6a59d7479824208c8828938a4a952b","source":{"kind":"arxiv","id":"1511.06867","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.06867","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"1511.06867v2","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.06867","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"OMIWLKIEDUCW","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OMIWLKIEDUCWIODZ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OMIWLKIE","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:OMIWLKIEDUCWIODZNJS4BGF62L","target":"record","payload":{"canonical_record":{"source":{"id":"1511.06867","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-11-21T11:27:08Z","cross_cats_sorted":[],"title_canon_sha256":"3101ace32fd274285c7906987ccfd26971fedfe6d41501319deffd44d7f38e38","abstract_canon_sha256":"9c53c5fd64149d0707e58e8d05a2a696b64b07801aa2519473cd1ae6f26c8cd4"},"schema_version":"1.0"},"canonical_sha256":"731165a9041d056438796a65c098bed2ec6a59d7479824208c8828938a4a952b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:50:22.826206Z","signature_b64":"CPmVfkbNELEolvm1ZXBjNIWDniRhCHik9PnHIbj/PZIOYiDJT+H0BaPFnj5mW8YsrdiiHQ20ad51liaTAJcpBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"731165a9041d056438796a65c098bed2ec6a59d7479824208c8828938a4a952b","last_reissued_at":"2026-05-18T00:50:22.825475Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:50:22.825475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1511.06867","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":"2026-05-18T00:50:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"freT/wE4s6l/boLeGsYQv2lKkSzSw4V+G5eBfpmWdXNeAOtjbGb6eme+a02DTnzpGejiS4C/OFjynKrcql8uDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:32:00.400365Z"},"content_sha256":"95fee110464fbb9e083c4bcafde769ba685355343256d8abf3483c849ae3abc8","schema_version":"1.0","event_id":"sha256:95fee110464fbb9e083c4bcafde769ba685355343256d8abf3483c849ae3abc8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:OMIWLKIEDUCWIODZNJS4BGF62L","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic excitations of the charge stripe electrons below half doping in La(2-x)Sr(x)NiO4, x = 0.45 and x = 0.4","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"D. Prabhakaran, K. Hradil, P. Cermak, P. G. Freeman, R. A. Mole, S. R. Giblin","submitted_at":"2015-11-21T11:27:08Z","abstract_excerpt":"The low energy magnetic excitation spectrum of charge stripe ordered La(2-x)Sr(x)NiO4, x = 0.4 and x = 0.45 samples were studied by neutron scattering. Two excitation modes are observed in both materials, one from the ordered magnetic moments, and a second mode consistent with pseudo-one-dimensional antiferromagnetic excitations of the charge stripe electrons (q-1D). The dispersion of the q-1D excitation follows the same relation as in x = 1/3 composition, with even spectral weight in the two counter-propagating branches of the x = 0.4 sample, however in the $x = 0.45$ sample only one dispersi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.06867","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":"2026-05-18T00:50:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"00HNAf9IJb84oG9UBpn6w6ZEMuTA/avM2AIwhVak13r09jmXHoZYAtjha6CcEkJZINi03E4GUxxPbBcAI5WhDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T12:32:00.400725Z"},"content_sha256":"7a94f064f31003572b3b0afc1adef85bd02a0d4399432e025368ea8b9f84028a","schema_version":"1.0","event_id":"sha256:7a94f064f31003572b3b0afc1adef85bd02a0d4399432e025368ea8b9f84028a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OMIWLKIEDUCWIODZNJS4BGF62L/bundle.json","state_url":"https://pith.science/pith/OMIWLKIEDUCWIODZNJS4BGF62L/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OMIWLKIEDUCWIODZNJS4BGF62L/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":"2026-06-01T12:32:00Z","links":{"resolver":"https://pith.science/pith/OMIWLKIEDUCWIODZNJS4BGF62L","bundle":"https://pith.science/pith/OMIWLKIEDUCWIODZNJS4BGF62L/bundle.json","state":"https://pith.science/pith/OMIWLKIEDUCWIODZNJS4BGF62L/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OMIWLKIEDUCWIODZNJS4BGF62L/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:OMIWLKIEDUCWIODZNJS4BGF62L","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":"9c53c5fd64149d0707e58e8d05a2a696b64b07801aa2519473cd1ae6f26c8cd4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-11-21T11:27:08Z","title_canon_sha256":"3101ace32fd274285c7906987ccfd26971fedfe6d41501319deffd44d7f38e38"},"schema_version":"1.0","source":{"id":"1511.06867","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.06867","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"arxiv_version","alias_value":"1511.06867v2","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.06867","created_at":"2026-05-18T00:50:22Z"},{"alias_kind":"pith_short_12","alias_value":"OMIWLKIEDUCW","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OMIWLKIEDUCWIODZ","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OMIWLKIE","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:7a94f064f31003572b3b0afc1adef85bd02a0d4399432e025368ea8b9f84028a","target":"graph","created_at":"2026-05-18T00:50:22Z","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 low energy magnetic excitation spectrum of charge stripe ordered La(2-x)Sr(x)NiO4, x = 0.4 and x = 0.45 samples were studied by neutron scattering. Two excitation modes are observed in both materials, one from the ordered magnetic moments, and a second mode consistent with pseudo-one-dimensional antiferromagnetic excitations of the charge stripe electrons (q-1D). The dispersion of the q-1D excitation follows the same relation as in x = 1/3 composition, with even spectral weight in the two counter-propagating branches of the x = 0.4 sample, however in the $x = 0.45$ sample only one dispersi","authors_text":"D. Prabhakaran, K. Hradil, P. Cermak, P. G. Freeman, R. A. Mole, S. R. Giblin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-11-21T11:27:08Z","title":"Magnetic excitations of the charge stripe electrons below half doping in La(2-x)Sr(x)NiO4, x = 0.45 and x = 0.4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.06867","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":"sha256:95fee110464fbb9e083c4bcafde769ba685355343256d8abf3483c849ae3abc8","target":"record","created_at":"2026-05-18T00:50:22Z","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":"9c53c5fd64149d0707e58e8d05a2a696b64b07801aa2519473cd1ae6f26c8cd4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-11-21T11:27:08Z","title_canon_sha256":"3101ace32fd274285c7906987ccfd26971fedfe6d41501319deffd44d7f38e38"},"schema_version":"1.0","source":{"id":"1511.06867","kind":"arxiv","version":2}},"canonical_sha256":"731165a9041d056438796a65c098bed2ec6a59d7479824208c8828938a4a952b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"731165a9041d056438796a65c098bed2ec6a59d7479824208c8828938a4a952b","first_computed_at":"2026-05-18T00:50:22.825475Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:50:22.825475Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CPmVfkbNELEolvm1ZXBjNIWDniRhCHik9PnHIbj/PZIOYiDJT+H0BaPFnj5mW8YsrdiiHQ20ad51liaTAJcpBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:50:22.826206Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.06867","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95fee110464fbb9e083c4bcafde769ba685355343256d8abf3483c849ae3abc8","sha256:7a94f064f31003572b3b0afc1adef85bd02a0d4399432e025368ea8b9f84028a"],"state_sha256":"4ce9000eb7ca901b8badee0c9e05571198d2a6091a2548055ace059b24c4d935"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A7GaIDzQcUU+/s3wYuDlIR6AR1s0D2DVW6OTHUnWjqNGsul3qIJSZo4Oc7eZ83vvCcO36sJG/XRb13YlqEG+BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T12:32:00.402878Z","bundle_sha256":"16000f0407a125ca4e66b76fdfdd5bc8183586d140532d828fc0ba5f77dd574f"}}