{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:PJ5RH4XY4PIIR6HQ3ZPAYDCVQL","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":"64c8ee980da07a1b5ca37312ba57d13767a1131d98311d56c67bbe434954de78","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-09-15T20:00:04Z","title_canon_sha256":"2edc434104a2e8c2aa78b386ebaa65b5a72332b2ce85ee3bf527a8f070266808"},"schema_version":"1.0","source":{"id":"1409.4413","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.4413","created_at":"2026-05-18T01:42:02Z"},{"alias_kind":"arxiv_version","alias_value":"1409.4413v1","created_at":"2026-05-18T01:42:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.4413","created_at":"2026-05-18T01:42:02Z"},{"alias_kind":"pith_short_12","alias_value":"PJ5RH4XY4PII","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_16","alias_value":"PJ5RH4XY4PIIR6HQ","created_at":"2026-05-18T12:28:43Z"},{"alias_kind":"pith_short_8","alias_value":"PJ5RH4XY","created_at":"2026-05-18T12:28:43Z"}],"graph_snapshots":[{"event_id":"sha256:4fdce46479419397eb8d22cff94e134fe4b44c669f935fce54644c54fe88f5c0","target":"graph","created_at":"2026-05-18T01:42:02Z","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":"We report the serendipitous detection of the CO(17-16) emission line toward the quasar SDSSJ114816.64+525150.3 (J1148) at redshift z = 6.4 obtained with the Plateau de Bure Interferometer. The CO(17-16) line is possibly contaminated by OH+ emission, that may account for ~ 35 - 60% of the total flux observed. Photo-Dissociation and X-ray Dominated Regions (PDRs and XDRs) models show that PDRs alone cannot reproduce the high luminosity of the CO(17-16) line relative to low-J CO transitions and that XDRs are required. By adopting a composite PDR+XDR model we derive molecular cloud and radiation f","authors_text":"Andrea Ferrara, Roberto Maiolino, Roberto Neri, Simona Gallerani","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-09-15T20:00:04Z","title":"First CO(17-16) emission line detected in a z > 6 quasar"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.4413","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":"sha256:84daf383f50e62c9c1c97b2856446fe20f742043766e8bfa8811ceaeeadfa9b1","target":"record","created_at":"2026-05-18T01:42:02Z","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":"64c8ee980da07a1b5ca37312ba57d13767a1131d98311d56c67bbe434954de78","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-09-15T20:00:04Z","title_canon_sha256":"2edc434104a2e8c2aa78b386ebaa65b5a72332b2ce85ee3bf527a8f070266808"},"schema_version":"1.0","source":{"id":"1409.4413","kind":"arxiv","version":1}},"canonical_sha256":"7a7b13f2f8e3d088f8f0de5e0c0c5582d0382f9f96ba70510145ed35c8846a7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7a7b13f2f8e3d088f8f0de5e0c0c5582d0382f9f96ba70510145ed35c8846a7e","first_computed_at":"2026-05-18T01:42:02.474757Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:42:02.474757Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1x6tAO+z8McLV9Epa7HcrUuRwf3J0jw1WLFrLIpsM6BmqNaD4qOCjSE1BTUInDDav8ZFIuTp4F/1tNlSckxJBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:42:02.475197Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.4413","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:84daf383f50e62c9c1c97b2856446fe20f742043766e8bfa8811ceaeeadfa9b1","sha256:4fdce46479419397eb8d22cff94e134fe4b44c669f935fce54644c54fe88f5c0"],"state_sha256":"53f059ba723576ecaf2404ba266c34b718f02065fcf88cae69ed06cfe101a15a"}