{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:XETC2WM2PNFZIZOYMN5BN7FT4B","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":"e6544db65523994501251c6cb338ed8f712e6bf2879293e1587897421a041fb8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-08-03T09:02:58Z","title_canon_sha256":"48eeef540e8da45f22d059f56fd160172c6913602da797d4a0a5c31fe54fdaea"},"schema_version":"1.0","source":{"id":"2608.01931","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.01931","created_at":"2026-08-04T02:07:46Z"},{"alias_kind":"arxiv_version","alias_value":"2608.01931v1","created_at":"2026-08-04T02:07:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.01931","created_at":"2026-08-04T02:07:46Z"},{"alias_kind":"pith_short_12","alias_value":"XETC2WM2PNFZ","created_at":"2026-08-04T02:07:46Z"},{"alias_kind":"pith_short_16","alias_value":"XETC2WM2PNFZIZOY","created_at":"2026-08-04T02:07:46Z"},{"alias_kind":"pith_short_8","alias_value":"XETC2WM2","created_at":"2026-08-04T02:07:46Z"}],"graph_snapshots":[{"event_id":"sha256:14e1ee31736bd9366144f41a33c899f3d4556ceafab6df70802fc024beeb1329","target":"graph","created_at":"2026-08-04T02:07:46Z","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/2608.01931/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Quasi-periodic eruptions (QPEs) are rapid, recurring soft X-ray bursts, whose nature is still in dispute. A compelling case of QPEs has emerged in the slowly evolving optical transient AT2019wzc, possibly associated with the tidal disruption of a post-main-sequence star by a supermassive black hole. Further evidence of a tidal disruption event (TDE) is crucial to understand the nature of AT2019wzc and establish the link between TDE and QPEs. Here we report the detection of a narrow, blueshifted N VI absorption line in its high-resolution X-ray spectra obtained by XMM-Newton, but weak or undete","authors_text":"Jiazheng Zhu, Luming Sun, Ning Jiang, Tao Wu, Wenjie Zhang, Xinwen Shu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-08-03T09:02:58Z","title":"Abnormal Nitrogen Abundance in the X-ray Spectrum of Quasi-periodically Erupting Source AT2019wzc"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.01931","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":"sha256:7ecdba3bc70c7cef28abb900f122a74d6dccca812068bbfe016717a4f39d4237","target":"record","created_at":"2026-08-04T02:07:46Z","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":"e6544db65523994501251c6cb338ed8f712e6bf2879293e1587897421a041fb8","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-08-03T09:02:58Z","title_canon_sha256":"48eeef540e8da45f22d059f56fd160172c6913602da797d4a0a5c31fe54fdaea"},"schema_version":"1.0","source":{"id":"2608.01931","kind":"arxiv","version":1}},"canonical_sha256":"b9262d599a7b4b9465d8637a16fcb3e076d39c359923081680ec34da6853f22d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b9262d599a7b4b9465d8637a16fcb3e076d39c359923081680ec34da6853f22d","first_computed_at":"2026-08-04T02:07:46.087921Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-04T02:07:46.087921Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HlyhRR1scpTxB3aOGtjAmbDvVDRu3h8GHGmde/r81nP8T0XZwaakKsmhtk7AFjRkv5oBn/9gL1OnORvmzNCoDg==","signature_status":"signed_v1","signed_at":"2026-08-04T02:07:46.089480Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.01931","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7ecdba3bc70c7cef28abb900f122a74d6dccca812068bbfe016717a4f39d4237","sha256:14e1ee31736bd9366144f41a33c899f3d4556ceafab6df70802fc024beeb1329"],"state_sha256":"492e80186c3748e60938aa189550c770c020c393ca6b7e07ffe8dd19e98b09db"}