{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HRIQKDMA3PVEQ5IQS35RZJBGJD","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":"c73591036cc1f79896587eb94f79e2c12ee879fa1066c3b7df3b48edbe4579e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-25T00:50:02Z","title_canon_sha256":"d402a36914fe57b54efe03acaa56bcf82f02d49e496ceb485d26e282ad587805"},"schema_version":"1.0","source":{"id":"1404.6297","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.6297","created_at":"2026-05-18T01:43:23Z"},{"alias_kind":"arxiv_version","alias_value":"1404.6297v1","created_at":"2026-05-18T01:43:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6297","created_at":"2026-05-18T01:43:23Z"},{"alias_kind":"pith_short_12","alias_value":"HRIQKDMA3PVE","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HRIQKDMA3PVEQ5IQ","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HRIQKDMA","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:effa2f4028c80f33e4416f4aca8cfcfdb8866dee1fc9eca0940be2652f9feb79","target":"graph","created_at":"2026-05-18T01:43:23Z","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":"A spin-singlet ground state with a spin gap has been discovered in antiferromagnetic spin chain substances when the spin value is 1/2, 1 or 2. To find spin gap (singlet-triplet) excitations in spin-3/2 chain substances, we performed inelastic neutron scattering and magnetization measurements on {\\it R}CrGeO$_5$ ({\\it R} = Y or Sm) powders. As expected, we observed spin gap excitations and the dispersion relation of the lowest magnetic excitations. We proved that the spin system of Cr$^{3+}$ was an antiferromagnetic alternating spin-3/2 chain.","authors_text":"A. Matsuo, D. Kawana, K. Kindo, M. Hase, M. Kohno, M. Soda, S. Itoh, T. Masuda, T. Yokoo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-25T00:50:02Z","title":"Experimental confirmation of spin gap in antiferromagnetic alternating spin-3/2 chain substances RCrGeO5 (R = Y or 154Sm) by inelastic neutron scattering experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6297","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":"sha256:81bef229852640458508ee3113de4667044289814cd805c7c1850bb335c01047","target":"record","created_at":"2026-05-18T01:43:23Z","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":"c73591036cc1f79896587eb94f79e2c12ee879fa1066c3b7df3b48edbe4579e1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-04-25T00:50:02Z","title_canon_sha256":"d402a36914fe57b54efe03acaa56bcf82f02d49e496ceb485d26e282ad587805"},"schema_version":"1.0","source":{"id":"1404.6297","kind":"arxiv","version":1}},"canonical_sha256":"3c51050d80dbea48751096fb1ca42648ef8b483a94fdec05936461fbb40f853e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c51050d80dbea48751096fb1ca42648ef8b483a94fdec05936461fbb40f853e","first_computed_at":"2026-05-18T01:43:23.411064Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:23.411064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6Th0kq3bJvymiZTI/OMnCML1dAdNJUZSz8b5GxMMsC9k+ykLAsn3qsmWbRFEudX7esGCc+n+eJ3S/LN0+16ZAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:23.411725Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.6297","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81bef229852640458508ee3113de4667044289814cd805c7c1850bb335c01047","sha256:effa2f4028c80f33e4416f4aca8cfcfdb8866dee1fc9eca0940be2652f9feb79"],"state_sha256":"844c7a20111b2dd5db6b4a6b3f96df3873254474f67d4cbe98eba975db614070"}