{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:N64KZNILX25SDWPWMMIRUAW7MX","short_pith_number":"pith:N64KZNIL","canonical_record":{"source":{"id":"1008.2118","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-08-12T14:17:05Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"59b21182d6c382a6bdf24a469b9f3a42c3f24c78fcd1bb22b60986d2b7b68937","abstract_canon_sha256":"c86cdfaeaddfc8fb7da29cb7b8d3e7a75c4e64e3371eabffdb7666e14fac7d47"},"schema_version":"1.0"},"canonical_sha256":"6fb8acb50bbebb21d9f663111a02df65c43cf6551665b7f505734ad3be3bd31c","source":{"kind":"arxiv","id":"1008.2118","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.2118","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"arxiv_version","alias_value":"1008.2118v1","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2118","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"pith_short_12","alias_value":"N64KZNILX25S","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"N64KZNILX25SDWPW","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"N64KZNIL","created_at":"2026-05-18T12:26:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:N64KZNILX25SDWPWMMIRUAW7MX","target":"record","payload":{"canonical_record":{"source":{"id":"1008.2118","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-08-12T14:17:05Z","cross_cats_sorted":["cond-mat.mtrl-sci"],"title_canon_sha256":"59b21182d6c382a6bdf24a469b9f3a42c3f24c78fcd1bb22b60986d2b7b68937","abstract_canon_sha256":"c86cdfaeaddfc8fb7da29cb7b8d3e7a75c4e64e3371eabffdb7666e14fac7d47"},"schema_version":"1.0"},"canonical_sha256":"6fb8acb50bbebb21d9f663111a02df65c43cf6551665b7f505734ad3be3bd31c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:49.009540Z","signature_b64":"FbpUN0SKOmKYSTn5YCvdaXxRzYhvqoPhArhoe1Ss+3dqSMFJ/tjvH4hG+cV1Z8btzUxke+aSBIdsl+jhtxVaBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fb8acb50bbebb21d9f663111a02df65c43cf6551665b7f505734ad3be3bd31c","last_reissued_at":"2026-05-18T02:05:49.008954Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:49.008954Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.2118","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":"2026-05-18T02:05:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"361m5iuFgaPnH7HYhrL1gb3vv1+OBqCOlWzq2ftL0zLZ//tArWIGUHRDv5VJx83LsZn3DkqovPCHAXugKJtKBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:26:04.987998Z"},"content_sha256":"dd8fd50efca56e18ce223ab8a2f8db6b7e3a8f23bac29f53049fe1ed620f81ad","schema_version":"1.0","event_id":"sha256:dd8fd50efca56e18ce223ab8a2f8db6b7e3a8f23bac29f53049fe1ed620f81ad"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:N64KZNILX25SDWPWMMIRUAW7MX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spin polarization of the magnetic spiral in NaCu_2O_2, as seen by NMR","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.A. Gippius, A.S. Moskvin, S.-L. Drechsler","submitted_at":"2010-08-12T14:17:05Z","abstract_excerpt":"The incommensurate (IC) spin ordering in quasi-1D edge-shared cuprate NaCu_2O_2 has been studied by ^{23}Na nuclear magnetic resonance spectroscopy in an external magnetic field near 6 Tesla applied along the main crystallographic axes. The NMR lineshape evolution above and below T_N\\approx12 K yields a clear signature of an IC static modulation of the local magnetic field consistent with a Cu^{2+} spin spiral polarized in the bc-plane rather than in the ab-plane as reported from earlier neutron diffraction data."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2118","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":"2026-05-18T02:05:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RjJuE9rjq2e1YZjFtzBCwIBTy1nQ+7hRB1H3QoT4VQdYkdwqGd9+OGpGsg1SIkO3kAazYk94g/LZ0gt1W/JrBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-18T19:26:04.988561Z"},"content_sha256":"18c2b20f91a9044392b27ddd62ab44f48d3a0f574b4efaa51264f4fe2e9cfbcc","schema_version":"1.0","event_id":"sha256:18c2b20f91a9044392b27ddd62ab44f48d3a0f574b4efaa51264f4fe2e9cfbcc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N64KZNILX25SDWPWMMIRUAW7MX/bundle.json","state_url":"https://pith.science/pith/N64KZNILX25SDWPWMMIRUAW7MX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N64KZNILX25SDWPWMMIRUAW7MX/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":"2026-05-18T19:26:04Z","links":{"resolver":"https://pith.science/pith/N64KZNILX25SDWPWMMIRUAW7MX","bundle":"https://pith.science/pith/N64KZNILX25SDWPWMMIRUAW7MX/bundle.json","state":"https://pith.science/pith/N64KZNILX25SDWPWMMIRUAW7MX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N64KZNILX25SDWPWMMIRUAW7MX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:N64KZNILX25SDWPWMMIRUAW7MX","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":"c86cdfaeaddfc8fb7da29cb7b8d3e7a75c4e64e3371eabffdb7666e14fac7d47","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-08-12T14:17:05Z","title_canon_sha256":"59b21182d6c382a6bdf24a469b9f3a42c3f24c78fcd1bb22b60986d2b7b68937"},"schema_version":"1.0","source":{"id":"1008.2118","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.2118","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"arxiv_version","alias_value":"1008.2118v1","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2118","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"pith_short_12","alias_value":"N64KZNILX25S","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_16","alias_value":"N64KZNILX25SDWPW","created_at":"2026-05-18T12:26:10Z"},{"alias_kind":"pith_short_8","alias_value":"N64KZNIL","created_at":"2026-05-18T12:26:10Z"}],"graph_snapshots":[{"event_id":"sha256:18c2b20f91a9044392b27ddd62ab44f48d3a0f574b4efaa51264f4fe2e9cfbcc","target":"graph","created_at":"2026-05-18T02:05:49Z","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 incommensurate (IC) spin ordering in quasi-1D edge-shared cuprate NaCu_2O_2 has been studied by ^{23}Na nuclear magnetic resonance spectroscopy in an external magnetic field near 6 Tesla applied along the main crystallographic axes. The NMR lineshape evolution above and below T_N\\approx12 K yields a clear signature of an IC static modulation of the local magnetic field consistent with a Cu^{2+} spin spiral polarized in the bc-plane rather than in the ab-plane as reported from earlier neutron diffraction data.","authors_text":"A.A. Gippius, A.S. Moskvin, S.-L. Drechsler","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-08-12T14:17:05Z","title":"Spin polarization of the magnetic spiral in NaCu_2O_2, as seen by NMR"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2118","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:dd8fd50efca56e18ce223ab8a2f8db6b7e3a8f23bac29f53049fe1ed620f81ad","target":"record","created_at":"2026-05-18T02:05:49Z","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":"c86cdfaeaddfc8fb7da29cb7b8d3e7a75c4e64e3371eabffdb7666e14fac7d47","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2010-08-12T14:17:05Z","title_canon_sha256":"59b21182d6c382a6bdf24a469b9f3a42c3f24c78fcd1bb22b60986d2b7b68937"},"schema_version":"1.0","source":{"id":"1008.2118","kind":"arxiv","version":1}},"canonical_sha256":"6fb8acb50bbebb21d9f663111a02df65c43cf6551665b7f505734ad3be3bd31c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6fb8acb50bbebb21d9f663111a02df65c43cf6551665b7f505734ad3be3bd31c","first_computed_at":"2026-05-18T02:05:49.008954Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:49.008954Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FbpUN0SKOmKYSTn5YCvdaXxRzYhvqoPhArhoe1Ss+3dqSMFJ/tjvH4hG+cV1Z8btzUxke+aSBIdsl+jhtxVaBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:49.009540Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.2118","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dd8fd50efca56e18ce223ab8a2f8db6b7e3a8f23bac29f53049fe1ed620f81ad","sha256:18c2b20f91a9044392b27ddd62ab44f48d3a0f574b4efaa51264f4fe2e9cfbcc"],"state_sha256":"410275944f9db060bae5b5119814b38368d23a1d71ffc1da6c9795887e74df0a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oW4afo5ii9XyQrCbsT6fUIDw5G9jmm2ICfE3qtpYyizWSgkpJy34jcen07kRB8jKK21gBedUANfvWJco53DTDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-18T19:26:04.990338Z","bundle_sha256":"307fb35d8529f27e374c97b9c163967573c77010870746224b8cce63a5470302"}}