{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:XHPE2FBGLM6JZBFYFOOXIP4CNO","short_pith_number":"pith:XHPE2FBG","schema_version":"1.0","canonical_sha256":"b9de4d14265b3c9c84b82b9d743f826bb1b44a38a69422dc18b42dd8a2f866a8","source":{"kind":"arxiv","id":"astro-ph/0606139","version":1},"attestation_state":"computed","paper":{"title":"The Deep Chandra Survey of the Groth Strip - II. optical identification of the X-ray sources","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) UCO/Lick, (3) Victoria, (4) Caltech, (5) Florida, (6) CfA, (7) Steward Observatory, (8) Berkeley), A. Georgakakis (1), A. L. Coil (7), C. C. Steidel (4), E. S. Laird (2), J. A. Newman (8) ((1) Imperial College, K . Nandra (1), M. C. Cooper (8), M. Davis (8), P. Barmby (6), S. Gwyn (3), S. M. Faber (2), V. L. Sarajedini (5)","submitted_at":"2006-06-07T05:58:21Z","abstract_excerpt":"We discuss the optical and X-ray spectral properties of the sources detected in a single 200ks Chandra pointing in the Groth-Westphal Strip region. Optical identifications and spectroscopic redshifts are primarily from the DEEP2 survey. This is complemented with deeper (r~26mag) multi-waveband data (ugriz) from the Canada France Hawaii Legacy Survey to estimate photometric redshifts and to optically identify sources fainter than the DEEP2 magnitude limit (R(AB)~24.5mag). We focus our study on the 2-10keV selected sample comprising 97 sources to the limit ~8e-16erg/s/cm2, this being the most co"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"astro-ph/0606139","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-06-07T05:58:21Z","cross_cats_sorted":[],"title_canon_sha256":"40be18ae2399a2484bdd101af02462519866f1753af6bd9b9dbfe0305b0d39a4","abstract_canon_sha256":"12487752cf36d3096f4a1637ba651024e73933d556fe49638d344326ea72075c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:58:50.271041Z","signature_b64":"4S0526IRODczPU6PycwW86n1sUqS5whsS30ry7nLA5DCSowIeBmSJgR59w82zDqyTRmn6LhIJ0P/Yk1xMzRSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b9de4d14265b3c9c84b82b9d743f826bb1b44a38a69422dc18b42dd8a2f866a8","last_reissued_at":"2026-07-04T16:58:50.270688Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:58:50.270688Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Deep Chandra Survey of the Groth Strip - II. optical identification of the X-ray sources","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) UCO/Lick, (3) Victoria, (4) Caltech, (5) Florida, (6) CfA, (7) Steward Observatory, (8) Berkeley), A. Georgakakis (1), A. L. Coil (7), C. C. Steidel (4), E. S. Laird (2), J. A. Newman (8) ((1) Imperial College, K . Nandra (1), M. C. Cooper (8), M. Davis (8), P. Barmby (6), S. Gwyn (3), S. M. Faber (2), V. L. Sarajedini (5)","submitted_at":"2006-06-07T05:58:21Z","abstract_excerpt":"We discuss the optical and X-ray spectral properties of the sources detected in a single 200ks Chandra pointing in the Groth-Westphal Strip region. Optical identifications and spectroscopic redshifts are primarily from the DEEP2 survey. This is complemented with deeper (r~26mag) multi-waveband data (ugriz) from the Canada France Hawaii Legacy Survey to estimate photometric redshifts and to optically identify sources fainter than the DEEP2 magnitude limit (R(AB)~24.5mag). We focus our study on the 2-10keV selected sample comprising 97 sources to the limit ~8e-16erg/s/cm2, this being the most co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0606139","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0606139/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0606139","created_at":"2026-07-04T16:58:50.270752+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0606139v1","created_at":"2026-07-04T16:58:50.270752+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0606139","created_at":"2026-07-04T16:58:50.270752+00:00"},{"alias_kind":"pith_short_12","alias_value":"XHPE2FBGLM6J","created_at":"2026-07-04T16:58:50.270752+00:00"},{"alias_kind":"pith_short_16","alias_value":"XHPE2FBGLM6JZBFY","created_at":"2026-07-04T16:58:50.270752+00:00"},{"alias_kind":"pith_short_8","alias_value":"XHPE2FBG","created_at":"2026-07-04T16:58:50.270752+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO","json":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO.json","graph_json":"https://pith.science/api/pith-number/XHPE2FBGLM6JZBFYFOOXIP4CNO/graph.json","events_json":"https://pith.science/api/pith-number/XHPE2FBGLM6JZBFYFOOXIP4CNO/events.json","paper":"https://pith.science/paper/XHPE2FBG"},"agent_actions":{"view_html":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO","download_json":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO.json","view_paper":"https://pith.science/paper/XHPE2FBG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0606139&json=true","fetch_graph":"https://pith.science/api/pith-number/XHPE2FBGLM6JZBFYFOOXIP4CNO/graph.json","fetch_events":"https://pith.science/api/pith-number/XHPE2FBGLM6JZBFYFOOXIP4CNO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO/action/storage_attestation","attest_author":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO/action/author_attestation","sign_citation":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO/action/citation_signature","submit_replication":"https://pith.science/pith/XHPE2FBGLM6JZBFYFOOXIP4CNO/action/replication_record"}},"created_at":"2026-07-04T16:58:50.270752+00:00","updated_at":"2026-07-04T16:58:50.270752+00:00"}