{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:6GI2QDERBWU4R3T3EUPM6OCSBR","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":"3430be0b78159ffc7e5726b4f12c2205dbdc959f6ba9cee73316a2f9534cb5af","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-28T11:01:29Z","title_canon_sha256":"e8690c93d6611f5f39e81f0c9bd483589f100f0339703d3d4eafe3d814b0b465"},"schema_version":"1.0","source":{"id":"cond-mat/9805374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9805374","created_at":"2026-07-04T14:23:07Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9805374v1","created_at":"2026-07-04T14:23:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9805374","created_at":"2026-07-04T14:23:07Z"},{"alias_kind":"pith_short_12","alias_value":"6GI2QDERBWU4","created_at":"2026-07-04T14:23:07Z"},{"alias_kind":"pith_short_16","alias_value":"6GI2QDERBWU4R3T3","created_at":"2026-07-04T14:23:07Z"},{"alias_kind":"pith_short_8","alias_value":"6GI2QDER","created_at":"2026-07-04T14:23:07Z"}],"graph_snapshots":[{"event_id":"sha256:d5d2c10fe101d953e2b9f515dc12accff20186674d21496a086f59572eb5ad71","target":"graph","created_at":"2026-07-04T14:23:07Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/9805374/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the past different models for the magnetic salt vanadyl pyrophosphate (VOPO) were discussed. Neither a spin ladder nor an alternating chain are capable to describe recently measured magnetic excitations. In this paper we propose a 2D model that fits better to experimental observations.","authors_text":"A. Weisse, G. Bouzerar, H. Fehske","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-28T11:01:29Z","title":"A new model to describe the physics of VOPO"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9805374","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":"sha256:582c91205c3bee44f848f14cdf3226befa5ec00d2c769f4f827aba9e7050a33b","target":"record","created_at":"2026-07-04T14:23:07Z","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":"3430be0b78159ffc7e5726b4f12c2205dbdc959f6ba9cee73316a2f9534cb5af","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"1998-05-28T11:01:29Z","title_canon_sha256":"e8690c93d6611f5f39e81f0c9bd483589f100f0339703d3d4eafe3d814b0b465"},"schema_version":"1.0","source":{"id":"cond-mat/9805374","kind":"arxiv","version":1}},"canonical_sha256":"f191a80c910da9c8ee7b251ecf38520c651bd404c0ea2a763fef956796ec08cd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f191a80c910da9c8ee7b251ecf38520c651bd404c0ea2a763fef956796ec08cd","first_computed_at":"2026-07-04T14:23:07.544468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:23:07.544468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w3W3fhzySGRVY52VJVDFYLgN6tG+MznSHo8KXu9RopTFN/w3DffyQqKlVgc+Hm/E36rk56EsbnapmPjyMeMhDg==","signature_status":"signed_v1","signed_at":"2026-07-04T14:23:07.544887Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9805374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:582c91205c3bee44f848f14cdf3226befa5ec00d2c769f4f827aba9e7050a33b","sha256:d5d2c10fe101d953e2b9f515dc12accff20186674d21496a086f59572eb5ad71"],"state_sha256":"e6b9390078bf36ddddfef6becad82fe9e6cc05e1a32686288d62192ee6a2b004"}