{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NLL2ISQ56NILLBASYFONTWJJLN","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":"078f2679f9e70c8a6811bbe4dfde171d12f411bf1d195f878782ea23c537f6b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-15T14:29:18Z","title_canon_sha256":"d210f4705d5a2407a781f5c07a91516c65063b0fff487c0dbccc19d5b074fcee"},"schema_version":"1.0","source":{"id":"2007.07707","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2007.07707","created_at":"2026-07-05T01:22:50Z"},{"alias_kind":"arxiv_version","alias_value":"2007.07707v1","created_at":"2026-07-05T01:22:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.07707","created_at":"2026-07-05T01:22:50Z"},{"alias_kind":"pith_short_12","alias_value":"NLL2ISQ56NIL","created_at":"2026-07-05T01:22:50Z"},{"alias_kind":"pith_short_16","alias_value":"NLL2ISQ56NILLBAS","created_at":"2026-07-05T01:22:50Z"},{"alias_kind":"pith_short_8","alias_value":"NLL2ISQ5","created_at":"2026-07-05T01:22:50Z"}],"graph_snapshots":[{"event_id":"sha256:c976c74fe4eb428a1e647c0ddfe064c9e4a010a5de86c04254ecd63ae4bd2fb8","target":"graph","created_at":"2026-07-05T01:22:50Z","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/2007.07707/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the detection of excited fine-structure energy levels of singly-ionized silicon and neutral carbon associated with the proximate damped Lyman-$\\alpha$ system at $z_{\\rm abs}=2.811$ towards \\qso. This absorber has an apparent relative velocity that is inconsistent with the Hubble flow indicating motion along the line-of-sight towards the quasar, i.e., $z_{\\rm abs}>z_{\\rm em}$. We measure the metallicity of the system to be ${\\rm [Zn/H]}=-0.68\\pm 0.02$. Using the relative populations of the fine-structure levels of SiII and CI, as well as the populations of H$_2$ rotational levels, we","authors_text":"C. Ledoux, N. Gupta, P. Noterdaeme, P. Petitjean, R. Srianand, S. A. Balashev","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-15T14:29:18Z","title":"Nature of the DLA towards Q0528-250: High pressure and strong UV field revealed by excitation of CI, H2 and SiII"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.07707","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":"sha256:96fd2540eb32d1f7f3ee40e05b6edfeb173c9abdc19af5acee6252bcad5c1aec","target":"record","created_at":"2026-07-05T01:22:50Z","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":"078f2679f9e70c8a6811bbe4dfde171d12f411bf1d195f878782ea23c537f6b6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-07-15T14:29:18Z","title_canon_sha256":"d210f4705d5a2407a781f5c07a91516c65063b0fff487c0dbccc19d5b074fcee"},"schema_version":"1.0","source":{"id":"2007.07707","kind":"arxiv","version":1}},"canonical_sha256":"6ad7a44a1df350b58412c15cd9d9295b5e8634b015164cab8418e9d3dee5f056","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6ad7a44a1df350b58412c15cd9d9295b5e8634b015164cab8418e9d3dee5f056","first_computed_at":"2026-07-05T01:22:50.665694Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:22:50.665694Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t8Cmuzyd50RnI6WTxVA3wEbCsXuEO8r99jFWtMqMpqdLQx9yaiScTCkv0gfL4oQAQ84yn0aYCdvwyIZbUqE0DA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:22:50.666175Z","signed_message":"canonical_sha256_bytes"},"source_id":"2007.07707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:96fd2540eb32d1f7f3ee40e05b6edfeb173c9abdc19af5acee6252bcad5c1aec","sha256:c976c74fe4eb428a1e647c0ddfe064c9e4a010a5de86c04254ecd63ae4bd2fb8"],"state_sha256":"6e13d7ffd83ea916eae10f7131352b06d3f31721ecec4463c61c73c64b51148c"}