{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:L2634VXSLFGFR2P4ZYTIQPRVVU","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":"08abdafa7e05f9a0e4de6672b9fe1a45fe02d6be3cd3c8d3e16d8509fb9cb4da","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-12T21:57:41Z","title_canon_sha256":"11c71f25ed57064606e0fcc1789578ff0a6085a91c33b93192e7d56996c84071"},"schema_version":"1.0","source":{"id":"0910.2244","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.2244","created_at":"2026-05-18T02:34:19Z"},{"alias_kind":"arxiv_version","alias_value":"0910.2244v2","created_at":"2026-05-18T02:34:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.2244","created_at":"2026-05-18T02:34:19Z"},{"alias_kind":"pith_short_12","alias_value":"L2634VXSLFGF","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_16","alias_value":"L2634VXSLFGFR2P4","created_at":"2026-05-18T12:26:00Z"},{"alias_kind":"pith_short_8","alias_value":"L2634VXS","created_at":"2026-05-18T12:26:00Z"}],"graph_snapshots":[{"event_id":"sha256:c1e47f52cef7125106d440f0487ba83d7ef6446c51b43c715f547e07c67f03f6","target":"graph","created_at":"2026-05-18T02:34:19Z","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 discovered a sample of 250 Ly-Alpha emitting (LAE) galaxies at z=2.1 in an ultra-deep 3727 A narrow-band MUSYC image of the Extended Chandra Deep Field-South. LAEs were selected to have rest-frame equivalent widths (EW) > 20 A and emission line fluxes > 2.0 x 10^(-17)erg /cm^2/s, after carefully subtracting the continuum contributions from narrow band photometry. The median flux of our sample is 4.2 x 10^(-17)erg/cm^2/s, corresponding to a median Lya luminosity = 1.3 x 10^(42) erg/s at z=2.1. At this flux our sample is > 90% complete. Approximately 4% of the original NB-selected candidates ","authors_text":"C. Gronwall, E. Gawiser, G. A. Blanc, H. Francke, J.J. Feldmeier, L. Guaita, N.A. Bond, N. Padilla, R. Ciardullo, S. Sinawa, S. Virani","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-12T21:57:41Z","title":"Lyman-Alpha-Emitting Galaxies at z = 2.1 in ECDF-S: Building Blocks of Typical Present-day Galaxies?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.2244","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":"sha256:4c2957d9547d342fbc3681570761b45817abd4fe476ed574aae8dc1bb64a6063","target":"record","created_at":"2026-05-18T02:34:19Z","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":"08abdafa7e05f9a0e4de6672b9fe1a45fe02d6be3cd3c8d3e16d8509fb9cb4da","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-10-12T21:57:41Z","title_canon_sha256":"11c71f25ed57064606e0fcc1789578ff0a6085a91c33b93192e7d56996c84071"},"schema_version":"1.0","source":{"id":"0910.2244","kind":"arxiv","version":2}},"canonical_sha256":"5ebdbe56f2594c58e9fcce26883e35ad1cbdb8329fc1cbe40c0e2a61f3e9a71b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5ebdbe56f2594c58e9fcce26883e35ad1cbdb8329fc1cbe40c0e2a61f3e9a71b","first_computed_at":"2026-05-18T02:34:19.179883Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:34:19.179883Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Kqkg5jzKmfGzRRk1zJcnOk4128PweAUq9gmojRNcADvM0jB4fU7AtuSNseTP1m6+fW+WbukljSxFy7eHYFiRAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:34:19.180466Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.2244","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4c2957d9547d342fbc3681570761b45817abd4fe476ed574aae8dc1bb64a6063","sha256:c1e47f52cef7125106d440f0487ba83d7ef6446c51b43c715f547e07c67f03f6"],"state_sha256":"9a266a30c8cfbb6fe8b84def373130e55eddd7c8a89187ecbd6fa74415a1f173"}