{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:N2S6624P5X3QYWBCT4UYIHMHJU","short_pith_number":"pith:N2S6624P","schema_version":"1.0","canonical_sha256":"6ea5ef6b8fedf70c58229f29841d874d21f142019652aeee65160eeb608918de","source":{"kind":"arxiv","id":"astro-ph/0701591","version":1},"attestation_state":"computed","paper":{"title":"Swift GRBs: the early afterglow spectral energy distribution","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.Moretti, C.Guidorzi, D.Malesani, E.Troja, G.Chincarini, G.Cusumano, G.Tagliaferri, L.A.Antonelli, M.Capalbi, M.L.Conciatore, M.Perri, P.Giommi, P.Romano, S.Campana, S.Covino, S.D.Vergani, T.Mineo, V.La Parola, V.Mangano","submitted_at":"2007-01-20T12:37:32Z","abstract_excerpt":"We present the first results of a program to systematically study the optical-to-X-ray spectral energy distribution (SED) of Swift GRB afterglows with known redshift. The goal is to study the properties of the GRB explosion and of the intervening absorbing material. In this report we present the preliminary analysis on 23 afterglows. Thanks to Swift, we could build the SED at early times after the GRB (minutes to hours). We derived the Hydrogen column densities and the spectral slopes from the X-ray spectrum. We then constrained the visual extinction by requiring that the combined optical/X-ra"},"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/0701591","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-01-20T12:37:32Z","cross_cats_sorted":[],"title_canon_sha256":"bc5022f403e9cf348168178bef28dcb15d11d98dea60d5c804e455c9c8ff5e65","abstract_canon_sha256":"ca8fd4e24e32fd519bf6372ff2537a863a247789ac97289b4ce8e70307dc076c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:20.453072Z","signature_b64":"G3l8XmHuRTYWM53ubiToQEdozeTiB+6bvJyv4hB6bDDy3Tq43h16hmrgkQI3k771AU/ZfIouwvROxaT86UXIBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6ea5ef6b8fedf70c58229f29841d874d21f142019652aeee65160eeb608918de","last_reissued_at":"2026-05-18T04:36:20.452600Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:20.452600Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Swift GRBs: the early afterglow spectral energy distribution","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.Moretti, C.Guidorzi, D.Malesani, E.Troja, G.Chincarini, G.Cusumano, G.Tagliaferri, L.A.Antonelli, M.Capalbi, M.L.Conciatore, M.Perri, P.Giommi, P.Romano, S.Campana, S.Covino, S.D.Vergani, T.Mineo, V.La Parola, V.Mangano","submitted_at":"2007-01-20T12:37:32Z","abstract_excerpt":"We present the first results of a program to systematically study the optical-to-X-ray spectral energy distribution (SED) of Swift GRB afterglows with known redshift. The goal is to study the properties of the GRB explosion and of the intervening absorbing material. In this report we present the preliminary analysis on 23 afterglows. Thanks to Swift, we could build the SED at early times after the GRB (minutes to hours). We derived the Hydrogen column densities and the spectral slopes from the X-ray spectrum. We then constrained the visual extinction by requiring that the combined optical/X-ra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0701591","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":""},"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/0701591","created_at":"2026-05-18T04:36:20.452670+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0701591v1","created_at":"2026-05-18T04:36:20.452670+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0701591","created_at":"2026-05-18T04:36:20.452670+00:00"},{"alias_kind":"pith_short_12","alias_value":"N2S6624P5X3Q","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_16","alias_value":"N2S6624P5X3QYWBC","created_at":"2026-05-18T12:25:55.427421+00:00"},{"alias_kind":"pith_short_8","alias_value":"N2S6624P","created_at":"2026-05-18T12:25:55.427421+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/N2S6624P5X3QYWBCT4UYIHMHJU","json":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU.json","graph_json":"https://pith.science/api/pith-number/N2S6624P5X3QYWBCT4UYIHMHJU/graph.json","events_json":"https://pith.science/api/pith-number/N2S6624P5X3QYWBCT4UYIHMHJU/events.json","paper":"https://pith.science/paper/N2S6624P"},"agent_actions":{"view_html":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU","download_json":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU.json","view_paper":"https://pith.science/paper/N2S6624P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0701591&json=true","fetch_graph":"https://pith.science/api/pith-number/N2S6624P5X3QYWBCT4UYIHMHJU/graph.json","fetch_events":"https://pith.science/api/pith-number/N2S6624P5X3QYWBCT4UYIHMHJU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU/action/storage_attestation","attest_author":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU/action/author_attestation","sign_citation":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU/action/citation_signature","submit_replication":"https://pith.science/pith/N2S6624P5X3QYWBCT4UYIHMHJU/action/replication_record"}},"created_at":"2026-05-18T04:36:20.452670+00:00","updated_at":"2026-05-18T04:36:20.452670+00:00"}