{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZBSW4772CRIPMFC4GCA75X22JR","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":"e4438396c47c4c1bddc99a4a77ba7efd10b8ff576c0da9a3bf1456f74bf2b727","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-01T19:00:02Z","title_canon_sha256":"a9331f3732d2848322a4191c88cbec07e4eb72a4c1f426329da69197a8cb9c99"},"schema_version":"1.0","source":{"id":"1702.00407","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.00407","created_at":"2026-05-18T00:45:53Z"},{"alias_kind":"arxiv_version","alias_value":"1702.00407v2","created_at":"2026-05-18T00:45:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.00407","created_at":"2026-05-18T00:45:53Z"},{"alias_kind":"pith_short_12","alias_value":"ZBSW4772CRIP","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZBSW4772CRIPMFC4","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZBSW4772","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:fac22b4227a5e3ceb0ca28aedb79905ba080ddaadb876a330c5236fb9a383af0","target":"graph","created_at":"2026-05-18T00:45:53Z","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":"In this study we focus on the $z\\sim6.6$ Lyman-$\\alpha$ CR7 consisting of clump A that is host to a potential direct collapse black hole (DCBH), and two metal enriched star forming clumps B and C. In contrast to claims that signatures of metals rule out the existence of DCBHs, we show that metal pollution of A from star forming clumps clumps B and C is inevitable, and that A can form a DCBH well before its metallicity exceeds the critical threshold of $10^{-5}-10^{-6}\\ \\rm Z_{\\odot}$. Assuming metal mixing happens instantaneously, we derive the metallicity of A based on the star formation hist","authors_text":"Bhaskar Agarwal, Claes-Erik Rydberg, Eric Pellegrini, Jarrett L. Johnson, Pascal Oesch, Ralf S. Klessen, Sadegh Khochfar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-01T19:00:02Z","title":"Metallicity evolution of direct collapse black hole hosts: CR7 as a case study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.00407","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:c4652b3eb1f882c95ec15a2a6d81cd1ef7f569fe5ee730a67fcab0a2259cc1e5","target":"record","created_at":"2026-05-18T00:45:53Z","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":"e4438396c47c4c1bddc99a4a77ba7efd10b8ff576c0da9a3bf1456f74bf2b727","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-01T19:00:02Z","title_canon_sha256":"a9331f3732d2848322a4191c88cbec07e4eb72a4c1f426329da69197a8cb9c99"},"schema_version":"1.0","source":{"id":"1702.00407","kind":"arxiv","version":2}},"canonical_sha256":"c8656e7ffa1450f6145c3081fedf5a4c5aae88ad94c7eb8e688b31bd7c3faecb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c8656e7ffa1450f6145c3081fedf5a4c5aae88ad94c7eb8e688b31bd7c3faecb","first_computed_at":"2026-05-18T00:45:53.972637Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:45:53.972637Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HOTfqu9XCICLSw91kbljkf+GofwvWF9hJ4CsZm5U+imDM95U+3jouRuwRAfXsSRF/TBa9tHSAZFTtOI28tZ3BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:45:53.973292Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.00407","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c4652b3eb1f882c95ec15a2a6d81cd1ef7f569fe5ee730a67fcab0a2259cc1e5","sha256:fac22b4227a5e3ceb0ca28aedb79905ba080ddaadb876a330c5236fb9a383af0"],"state_sha256":"efdef682099bb8394ce57429a29039ae101352732e2b8cf40d1ff27d8f977cbf"}