{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:URNF67LTAWHA6CMQAYWCCFKSJ2","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":"9ae42c88e15a830e50f5d123da2ead62450ecdb793d3394d49cfa37a3f7a82b8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-14T01:18:07Z","title_canon_sha256":"6b81ae49072371845c8867074a5aaf62b6dce085662a60cd9ba3b5245d8d14d4"},"schema_version":"1.0","source":{"id":"0708.1788","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0708.1788","created_at":"2026-05-18T02:16:28Z"},{"alias_kind":"arxiv_version","alias_value":"0708.1788v1","created_at":"2026-05-18T02:16:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0708.1788","created_at":"2026-05-18T02:16:28Z"},{"alias_kind":"pith_short_12","alias_value":"URNF67LTAWHA","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_16","alias_value":"URNF67LTAWHA6CMQ","created_at":"2026-05-18T12:25:56Z"},{"alias_kind":"pith_short_8","alias_value":"URNF67LT","created_at":"2026-05-18T12:25:56Z"}],"graph_snapshots":[{"event_id":"sha256:e80c3d4aa57de25cbd317897529c17bf164ece0a826b9697bdccf3fd2a3e8d5c","target":"graph","created_at":"2026-05-18T02:16:28Z","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":"Absorption spectra of high redshift quasars exhibit an increasingly thick Ly-alpha forest towards z~6. However, the interpretation of these spectra is complicated by the fact that the Ly-alpha optical depth is already large for neutral hydrogen fractions in excess of 10^-4, and also because quasars are expected to reside in dense regions of the IGM. We present a model for the evolution of the ionization state of the IGM which is applicable to the dense, biased regions around high-redshift quasars as well as more typical regions in the IGM, and combine this with numerical radiative transfer sim","authors_text":"James Bolton, Martin Haehnelt, Stuart Wyithe","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-08-14T01:18:07Z","title":"Reionization Bias in High Redshift Quasar Near-Zones"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0708.1788","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:b58a9b41ee4a5022b1fa6b71920a3403c6b5991544c445540e970e48d3af0e13","target":"record","created_at":"2026-05-18T02:16:28Z","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":"9ae42c88e15a830e50f5d123da2ead62450ecdb793d3394d49cfa37a3f7a82b8","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-08-14T01:18:07Z","title_canon_sha256":"6b81ae49072371845c8867074a5aaf62b6dce085662a60cd9ba3b5245d8d14d4"},"schema_version":"1.0","source":{"id":"0708.1788","kind":"arxiv","version":1}},"canonical_sha256":"a45a5f7d73058e0f0990062c2115524e9de92837f4e738a2a1042be7b75c7a58","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a45a5f7d73058e0f0990062c2115524e9de92837f4e738a2a1042be7b75c7a58","first_computed_at":"2026-05-18T02:16:28.772075Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:28.772075Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ol8PuZcPx/DOJjAsbKRqsNxfRk78rBoHN39tZeUfIi4raxC6uXIcyuWlBcGCYHpV/FymNZmCkiCMpjG3FOO0CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:28.772776Z","signed_message":"canonical_sha256_bytes"},"source_id":"0708.1788","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b58a9b41ee4a5022b1fa6b71920a3403c6b5991544c445540e970e48d3af0e13","sha256:e80c3d4aa57de25cbd317897529c17bf164ece0a826b9697bdccf3fd2a3e8d5c"],"state_sha256":"eae50b220fd1240ec865a6ab8f26c80ff0c50517a02251140d360146c787f4b8"}