{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2005:6QYOG7DK6RNI5U7YGLMM7NSTNH","short_pith_number":"pith:6QYOG7DK","schema_version":"1.0","canonical_sha256":"f430e37c6af45a8ed3f832d8cfb65369eb2755afe5681baf89e38fb87ca60b89","source":{"kind":"arxiv","id":"astro-ph/0509581","version":1},"attestation_state":"computed","paper":{"title":"Problems with Pencils: Lensing Covariance of Supernova Distance Measurements","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Asantha Cooray, Daniel Holz, Dragan Huterer","submitted_at":"2005-09-20T08:44:21Z","abstract_excerpt":"While luminosity distances from Type Ia supernovae (SNe) provide a powerful probe of cosmological parameters, the accuracy with which these distances can be measured is limited by cosmic magnification due to gravitational lensing by the intervening large-scale structure. Spatial clustering of foreground mass fluctuations leads to correlated errors in distance estimates from SNe. By including the full covariance matrix of supernova distance measurements, we show that a future survey covering more than a few square degrees on the sky, and assuming a total of ~2000 SNe, will be largely unaffected"},"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/0509581","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-20T08:44:21Z","cross_cats_sorted":[],"title_canon_sha256":"8190a4d55461ad98bdcc5b25794ca4d97631ba6f1ba3e2eff578053be6fd047d","abstract_canon_sha256":"7c4a729094927d4d9b44351c5a1ed731624417b17cbae2c64b0a8fb12e656e90"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:22:20.626275Z","signature_b64":"gccuzZgOu+znx/m0bFRlbMDKTDdca4QXce1vPNrYSSJ+GYRD81QoGH3oLcJWUj0jWQKPZMzVFa+Bat9nNZagDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f430e37c6af45a8ed3f832d8cfb65369eb2755afe5681baf89e38fb87ca60b89","last_reissued_at":"2026-05-18T04:22:20.625629Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:22:20.625629Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Problems with Pencils: Lensing Covariance of Supernova Distance Measurements","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Asantha Cooray, Daniel Holz, Dragan Huterer","submitted_at":"2005-09-20T08:44:21Z","abstract_excerpt":"While luminosity distances from Type Ia supernovae (SNe) provide a powerful probe of cosmological parameters, the accuracy with which these distances can be measured is limited by cosmic magnification due to gravitational lensing by the intervening large-scale structure. Spatial clustering of foreground mass fluctuations leads to correlated errors in distance estimates from SNe. By including the full covariance matrix of supernova distance measurements, we show that a future survey covering more than a few square degrees on the sky, and assuming a total of ~2000 SNe, will be largely unaffected"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509581","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/0509581","created_at":"2026-05-18T04:22:20.625755+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509581v1","created_at":"2026-05-18T04:22:20.625755+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509581","created_at":"2026-05-18T04:22:20.625755+00:00"},{"alias_kind":"pith_short_12","alias_value":"6QYOG7DK6RNI","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_16","alias_value":"6QYOG7DK6RNI5U7Y","created_at":"2026-05-18T12:25:53.335082+00:00"},{"alias_kind":"pith_short_8","alias_value":"6QYOG7DK","created_at":"2026-05-18T12:25:53.335082+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/6QYOG7DK6RNI5U7YGLMM7NSTNH","json":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH.json","graph_json":"https://pith.science/api/pith-number/6QYOG7DK6RNI5U7YGLMM7NSTNH/graph.json","events_json":"https://pith.science/api/pith-number/6QYOG7DK6RNI5U7YGLMM7NSTNH/events.json","paper":"https://pith.science/paper/6QYOG7DK"},"agent_actions":{"view_html":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH","download_json":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH.json","view_paper":"https://pith.science/paper/6QYOG7DK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0509581&json=true","fetch_graph":"https://pith.science/api/pith-number/6QYOG7DK6RNI5U7YGLMM7NSTNH/graph.json","fetch_events":"https://pith.science/api/pith-number/6QYOG7DK6RNI5U7YGLMM7NSTNH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH/action/storage_attestation","attest_author":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH/action/author_attestation","sign_citation":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH/action/citation_signature","submit_replication":"https://pith.science/pith/6QYOG7DK6RNI5U7YGLMM7NSTNH/action/replication_record"}},"created_at":"2026-05-18T04:22:20.625755+00:00","updated_at":"2026-05-18T04:22:20.625755+00:00"}