{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:MUI6PKQNICF43IYAEIIQPEBK7F","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":"21badd043595230b19096dcaa234f5caa47892bca54a76210bdcb47875734af4","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-10-06T18:51:39Z","title_canon_sha256":"1b932be8bbd368d95329c4b6f9fc8fcd114fc478b3b0fcee68433e2ed95b8097"},"schema_version":"1.0","source":{"id":"2110.03013","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.03013","created_at":"2026-07-05T03:59:24Z"},{"alias_kind":"arxiv_version","alias_value":"2110.03013v2","created_at":"2026-07-05T03:59:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.03013","created_at":"2026-07-05T03:59:24Z"},{"alias_kind":"pith_short_12","alias_value":"MUI6PKQNICF4","created_at":"2026-07-05T03:59:24Z"},{"alias_kind":"pith_short_16","alias_value":"MUI6PKQNICF43IYA","created_at":"2026-07-05T03:59:24Z"},{"alias_kind":"pith_short_8","alias_value":"MUI6PKQN","created_at":"2026-07-05T03:59:24Z"}],"graph_snapshots":[{"event_id":"sha256:f95b420dd6215867802be0bd2d22c8d4bbce2b5ce1b9b1f9964e199eb457b5e5","target":"graph","created_at":"2026-07-05T03:59:24Z","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/2110.03013/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Tidal disruption events (TDEs) provide a unique opportunity to probe the stellar populations around supermassive black holes (SMBHs). By combining light curve modeling with spectral line information and knowledge about the stellar populations in the host galaxies, we are able to constrain the properties of the disrupted star for three TDEs. The TDEs in our sample have UV spectra, and measurements of the UV N III to C III line ratios enabled estimates of the nitrogen-to-carbon abundance ratios for these events. We show that the measured nitrogen line widths are consistent with originating from ","authors_text":"Angela A. Twum, Brenna Mockler, Enrico Ramirez-Ruiz, Jamie A.P. Law-Smith, Katie Auchettl, K.D. French, Sierra Dodd","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-10-06T18:51:39Z","title":"Evidence for the preferential disruption of moderately massive stars by supermassive black holes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.03013","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":"sha256:24ea31d4c352cd0ad61e5ccfd48787d3d5c46fb78b277a1c4fcf774ef94901ca","target":"record","created_at":"2026-07-05T03:59:24Z","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":"21badd043595230b19096dcaa234f5caa47892bca54a76210bdcb47875734af4","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-10-06T18:51:39Z","title_canon_sha256":"1b932be8bbd368d95329c4b6f9fc8fcd114fc478b3b0fcee68433e2ed95b8097"},"schema_version":"1.0","source":{"id":"2110.03013","kind":"arxiv","version":2}},"canonical_sha256":"6511e7aa0d408bcda300221107902af94432a9b3f9455fd24810736aadb1b6ef","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6511e7aa0d408bcda300221107902af94432a9b3f9455fd24810736aadb1b6ef","first_computed_at":"2026-07-05T03:59:24.811064Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:59:24.811064Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kvuoA2unjaA+MwYecMekxs3USYKw6wsQJxTpD0yORYFmUzzDDavS0X1d+pja3bBGzqAovWYKKBJ4HUAVUBYUDg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:59:24.811567Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.03013","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24ea31d4c352cd0ad61e5ccfd48787d3d5c46fb78b277a1c4fcf774ef94901ca","sha256:f95b420dd6215867802be0bd2d22c8d4bbce2b5ce1b9b1f9964e199eb457b5e5"],"state_sha256":"e46f9812a5fe9c9e227675794bf49c9f4a0b822f0344b9c83bb9a5fe85fd623a"}