{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:KT3Z3PKLDLETZFMUCIUHNYDGJH","short_pith_number":"pith:KT3Z3PKL","canonical_record":{"source":{"id":"1009.5590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-28T14:48:45Z","cross_cats_sorted":[],"title_canon_sha256":"45bea1db164040998d81ec184a6883bc32dbc3aa679fbf167b03480b67d06886","abstract_canon_sha256":"4c9a4c88a76448ac748c38f42e3bf94e22f5e19dcfcab5ea15204fd948390be2"},"schema_version":"1.0"},"canonical_sha256":"54f79dbd4b1ac93c9594122876e06649f8a9d2d504688e0f6a7f08b5f3311e82","source":{"kind":"arxiv","id":"1009.5590","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5590","created_at":"2026-05-18T03:16:40Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5590v1","created_at":"2026-05-18T03:16:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5590","created_at":"2026-05-18T03:16:40Z"},{"alias_kind":"pith_short_12","alias_value":"KT3Z3PKLDLET","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KT3Z3PKLDLETZFMU","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KT3Z3PKL","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:KT3Z3PKLDLETZFMUCIUHNYDGJH","target":"record","payload":{"canonical_record":{"source":{"id":"1009.5590","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-28T14:48:45Z","cross_cats_sorted":[],"title_canon_sha256":"45bea1db164040998d81ec184a6883bc32dbc3aa679fbf167b03480b67d06886","abstract_canon_sha256":"4c9a4c88a76448ac748c38f42e3bf94e22f5e19dcfcab5ea15204fd948390be2"},"schema_version":"1.0"},"canonical_sha256":"54f79dbd4b1ac93c9594122876e06649f8a9d2d504688e0f6a7f08b5f3311e82","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:16:40.668379Z","signature_b64":"qQcCBAm7nBGXcIL4oa/Shh8HCtPBeN81bXpKgF0CYVWD6AxT1e+cBCiMc1HfX2FEYbAqUSZjoWOKQ04eIu5lCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"54f79dbd4b1ac93c9594122876e06649f8a9d2d504688e0f6a7f08b5f3311e82","last_reissued_at":"2026-05-18T03:16:40.667768Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:16:40.667768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.5590","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:16:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"T574Yex9abGcp8ppybv1cUtTFbhLDCsHvqK3DUtJrY1M7VIbRvJ9Ed6eOMglONmyOQ7swA0knIsQY7+3krqhCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:05:39.456809Z"},"content_sha256":"f027ea19b54341ad6c7c2e12927ac4aa79a302bed15a6a06791a5240c11190d6","schema_version":"1.0","event_id":"sha256:f027ea19b54341ad6c7c2e12927ac4aa79a302bed15a6a06791a5240c11190d6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:KT3Z3PKLDLETZFMUCIUHNYDGJH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnification as a Tool in Weak Lensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Alberto Vallinotto, Pengjie Zhang, Scott Dodelson","submitted_at":"2010-09-28T14:48:45Z","abstract_excerpt":"Weak lensing surveys exploit measurements of galaxy ellipticities. These measurements are subject to errors which degrade the cosmological information that can be extracted from the surveys. Here we propose a way of using the galaxy data themselves to calibrate the measurement errors. In particular, the cosmic shear field, which causes the galaxies to appear elliptical, also changes their sizes and fluxes. Information about the sizes and fluxes of the galaxies can be added to the shape information to obtain more robust information about the cosmic shear field. The net result will be tighter co"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5590","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:16:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OjG7wSKCtoJ9+oQuRg+R3ROAN0UjVrd3D84adbIBl3VXgDnypqy/xPq66/tdyV4Ct/oObe1nSMrYXNs+PLvIDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T10:05:39.457491Z"},"content_sha256":"45f9c7bae2846546cee8aea1b050f744c5e290d1c5eb138269761969ab3d3a76","schema_version":"1.0","event_id":"sha256:45f9c7bae2846546cee8aea1b050f744c5e290d1c5eb138269761969ab3d3a76"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH/bundle.json","state_url":"https://pith.science/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-31T10:05:39Z","links":{"resolver":"https://pith.science/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH","bundle":"https://pith.science/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH/bundle.json","state":"https://pith.science/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KT3Z3PKLDLETZFMUCIUHNYDGJH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:KT3Z3PKLDLETZFMUCIUHNYDGJH","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":"4c9a4c88a76448ac748c38f42e3bf94e22f5e19dcfcab5ea15204fd948390be2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-28T14:48:45Z","title_canon_sha256":"45bea1db164040998d81ec184a6883bc32dbc3aa679fbf167b03480b67d06886"},"schema_version":"1.0","source":{"id":"1009.5590","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5590","created_at":"2026-05-18T03:16:40Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5590v1","created_at":"2026-05-18T03:16:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5590","created_at":"2026-05-18T03:16:40Z"},{"alias_kind":"pith_short_12","alias_value":"KT3Z3PKLDLET","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"KT3Z3PKLDLETZFMU","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"KT3Z3PKL","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:45f9c7bae2846546cee8aea1b050f744c5e290d1c5eb138269761969ab3d3a76","target":"graph","created_at":"2026-05-18T03:16:40Z","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":"Weak lensing surveys exploit measurements of galaxy ellipticities. These measurements are subject to errors which degrade the cosmological information that can be extracted from the surveys. Here we propose a way of using the galaxy data themselves to calibrate the measurement errors. In particular, the cosmic shear field, which causes the galaxies to appear elliptical, also changes their sizes and fluxes. Information about the sizes and fluxes of the galaxies can be added to the shape information to obtain more robust information about the cosmic shear field. The net result will be tighter co","authors_text":"Alberto Vallinotto, Pengjie Zhang, Scott Dodelson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-28T14:48:45Z","title":"Magnification as a Tool in Weak Lensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5590","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:f027ea19b54341ad6c7c2e12927ac4aa79a302bed15a6a06791a5240c11190d6","target":"record","created_at":"2026-05-18T03:16:40Z","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":"4c9a4c88a76448ac748c38f42e3bf94e22f5e19dcfcab5ea15204fd948390be2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-09-28T14:48:45Z","title_canon_sha256":"45bea1db164040998d81ec184a6883bc32dbc3aa679fbf167b03480b67d06886"},"schema_version":"1.0","source":{"id":"1009.5590","kind":"arxiv","version":1}},"canonical_sha256":"54f79dbd4b1ac93c9594122876e06649f8a9d2d504688e0f6a7f08b5f3311e82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"54f79dbd4b1ac93c9594122876e06649f8a9d2d504688e0f6a7f08b5f3311e82","first_computed_at":"2026-05-18T03:16:40.667768Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:16:40.667768Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qQcCBAm7nBGXcIL4oa/Shh8HCtPBeN81bXpKgF0CYVWD6AxT1e+cBCiMc1HfX2FEYbAqUSZjoWOKQ04eIu5lCg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:16:40.668379Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.5590","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f027ea19b54341ad6c7c2e12927ac4aa79a302bed15a6a06791a5240c11190d6","sha256:45f9c7bae2846546cee8aea1b050f744c5e290d1c5eb138269761969ab3d3a76"],"state_sha256":"181e4f996f5c210522e891de45224ff4a599490dac5530f15fe09bcc36ba9bd9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Ub4xuoyfcRHmr+rNqhHnILbaNESelnAHEieMblo+XwKlbjwGoiq6kGCUW3yyNSngiLNBM/b1DyVTxwjE4WgCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T10:05:39.461031Z","bundle_sha256":"fc0605304befa4119668bdb83e6c31921927dd069b86856bd434251e8574b5cb"}}