{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:VQIDDMX2EW5L7REINPFF6MHT26","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":"d3f38b132c3772b5b046558c7f69fe233554405a54d0198f5d6b4c7a29b217fe","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-27T20:00:01Z","title_canon_sha256":"b3033ae893450ca021f6775e03fdf85774f2b1906501359934ac0d4e05251518"},"schema_version":"1.0","source":{"id":"1105.5643","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.5643","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"arxiv_version","alias_value":"1105.5643v1","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.5643","created_at":"2026-05-18T02:01:47Z"},{"alias_kind":"pith_short_12","alias_value":"VQIDDMX2EW5L","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_16","alias_value":"VQIDDMX2EW5L7REI","created_at":"2026-05-18T12:26:44Z"},{"alias_kind":"pith_short_8","alias_value":"VQIDDMX2","created_at":"2026-05-18T12:26:44Z"}],"graph_snapshots":[{"event_id":"sha256:ac35b6cbb761ee0ddd6ae18928e8ea0ef5e94e57e30768a92de13460f5b20247","target":"graph","created_at":"2026-05-18T02:01:47Z","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":"[abridged] We present point-source catalogs for the 4Ms Chandra Deep Field-South (CDF-S), which is the deepest Chandra survey to date and covers an area of 464.5 arcmin^2. We provide a main source catalog, which contains 740 X-ray point sources that are detected with wavdetect at a false-positive probability threshold of 1E-5 and also satisfy a binomial-probability source-selection criterion of P<0.004; this approach is designed to maximize the number of reliable sources detected. A total of 300 main-catalog sources are new compared to the previous 2Ms CDF-S main-catalog sources. We also provi","authors_text":"A.C. Fabian, A. Comastri, A.E. Hornschemeier, A. Koekemoer, B.D. Lehmer, B. Luo, C. Vignali, D.A. Rafferty, D.M. Alexander, D.P. Schneider, F.E. Bauer, G. Hasinger, I. Smail, J.D. Silverman, M. Brusa, M. Paolillo, O. Shemmer, P. Rosati, P.S. Broos, P. Tozzi, R. Gilli, T. Liu, V. Mainieri, W.N. Brandt, Y.Q. Xue","cross_cats":["astro-ph.GA","astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-27T20:00:01Z","title":"The Chandra Deep Field-South Survey: 4 Ms Source Catalogs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.5643","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:c1c297cc4b736431a331dc72ceccbbb67c06912add24200e7547567af4bcd5cc","target":"record","created_at":"2026-05-18T02:01:47Z","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":"d3f38b132c3772b5b046558c7f69fe233554405a54d0198f5d6b4c7a29b217fe","cross_cats_sorted":["astro-ph.GA","astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-05-27T20:00:01Z","title_canon_sha256":"b3033ae893450ca021f6775e03fdf85774f2b1906501359934ac0d4e05251518"},"schema_version":"1.0","source":{"id":"1105.5643","kind":"arxiv","version":1}},"canonical_sha256":"ac1031b2fa25babfc4886bca5f30f3d7b968337c2353ebafd891a563524246f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac1031b2fa25babfc4886bca5f30f3d7b968337c2353ebafd891a563524246f7","first_computed_at":"2026-05-18T02:01:47.005465Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:01:47.005465Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XXHSpoglNMSjYAeT2COouOshN67eD+oGLtdKRgvKvjLSLMVaJHBV/rGYXu3gyxitRzustX8IeEpISdStblw8AA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:01:47.006228Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.5643","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c1c297cc4b736431a331dc72ceccbbb67c06912add24200e7547567af4bcd5cc","sha256:ac35b6cbb761ee0ddd6ae18928e8ea0ef5e94e57e30768a92de13460f5b20247"],"state_sha256":"05c9f583e7e42a5b6c87a3adb774989f726272eec955ad1cae596c1fd3ef15d7"}