{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:MKXH2OVLVCGLGXAN6IDXWAZAUB","short_pith_number":"pith:MKXH2OVL","canonical_record":{"source":{"id":"1310.3339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-12T04:32:16Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"6ef48001267ee845419241ed66d71d94d1f1988a5bc8249495872bc2ddf16edb","abstract_canon_sha256":"5c0878dc43ddc5091632c662ac5eba24416420028f9f6088b27457271e1de574"},"schema_version":"1.0"},"canonical_sha256":"62ae7d3aaba88cb35c0df2077b0320a05dbc8b3ec4b62235de861055b928a027","source":{"kind":"arxiv","id":"1310.3339","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3339","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3339v1","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3339","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"pith_short_12","alias_value":"MKXH2OVLVCGL","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MKXH2OVLVCGLGXAN","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MKXH2OVL","created_at":"2026-05-18T12:27:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:MKXH2OVLVCGLGXAN6IDXWAZAUB","target":"record","payload":{"canonical_record":{"source":{"id":"1310.3339","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-12T04:32:16Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"6ef48001267ee845419241ed66d71d94d1f1988a5bc8249495872bc2ddf16edb","abstract_canon_sha256":"5c0878dc43ddc5091632c662ac5eba24416420028f9f6088b27457271e1de574"},"schema_version":"1.0"},"canonical_sha256":"62ae7d3aaba88cb35c0df2077b0320a05dbc8b3ec4b62235de861055b928a027","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:06.213518Z","signature_b64":"9oEZcfepVypHNiQOJZfqpjBAbhHl7Glg2dbMynuNDyQZIvYWc5CNn9N9h3D1PrlgGXUsfp3X7iMNNbr65PgxAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62ae7d3aaba88cb35c0df2077b0320a05dbc8b3ec4b62235de861055b928a027","last_reissued_at":"2026-05-18T01:47:06.213098Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:06.213098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.3339","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":"2026-05-18T01:47:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"StRrT8KTwfilLqhHNMOnPt6WHSBrRpRNJxJQ8zYniXVi9EZRJjkODd0qBcL3UkjsSZFllrdKyJnCdviVHuDPCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T23:32:12.401257Z"},"content_sha256":"a5b9cacf0a694bf7ca69bfe8957169b4e4105673dae5276e4188c76ed5db3ef2","schema_version":"1.0","event_id":"sha256:a5b9cacf0a694bf7ca69bfe8957169b4e4105673dae5276e4188c76ed5db3ef2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:MKXH2OVLVCGLGXAN6IDXWAZAUB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Weak Gravitational Lensing Systematics from Image Combination","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"Barnaby Rowe, Charles Shapiro, Christopher M. Hirata, Jason Fucik, Jason Rhodes, Roger Smith, Suresh Seshadri, Timothy Goodsall","submitted_at":"2013-10-12T04:32:16Z","abstract_excerpt":"Extremely accurate shape measurements of galaxy images are needed to probe dark energy properties with weak gravitational lensing surveys. To increase survey area with a fixed observing time and pixel count, images from surveys such as the Wide Field Infrared Survey Telescope (WFIRST) or Euclid will necessarily be undersampled and therefore distorted by aliasing. Oversampled, unaliased images can be obtained by combining multiple, dithered exposures of the same source with a suitable reconstruction algorithm. Any such reconstruction must minimally distort the reconstructed images for weak lens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3339","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":"2026-05-18T01:47:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Sjn3yerIxCCwQx82K9nyCc5T5UTjCb/wJRiQW8rkWYGmp+rfP2Q76Oms2PDBfu/n9mgzjJRopTDu0XiCYOECDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-22T23:32:12.401885Z"},"content_sha256":"a365ea1e23d4c40844955accbb9732499560056eb09c31f15101226eec4d6685","schema_version":"1.0","event_id":"sha256:a365ea1e23d4c40844955accbb9732499560056eb09c31f15101226eec4d6685"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB/bundle.json","state_url":"https://pith.science/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB/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":"2026-05-22T23:32:12Z","links":{"resolver":"https://pith.science/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB","bundle":"https://pith.science/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB/bundle.json","state":"https://pith.science/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MKXH2OVLVCGLGXAN6IDXWAZAUB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:MKXH2OVLVCGLGXAN6IDXWAZAUB","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":"5c0878dc43ddc5091632c662ac5eba24416420028f9f6088b27457271e1de574","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-12T04:32:16Z","title_canon_sha256":"6ef48001267ee845419241ed66d71d94d1f1988a5bc8249495872bc2ddf16edb"},"schema_version":"1.0","source":{"id":"1310.3339","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3339","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3339v1","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3339","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"pith_short_12","alias_value":"MKXH2OVLVCGL","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_16","alias_value":"MKXH2OVLVCGLGXAN","created_at":"2026-05-18T12:27:52Z"},{"alias_kind":"pith_short_8","alias_value":"MKXH2OVL","created_at":"2026-05-18T12:27:52Z"}],"graph_snapshots":[{"event_id":"sha256:a365ea1e23d4c40844955accbb9732499560056eb09c31f15101226eec4d6685","target":"graph","created_at":"2026-05-18T01:47:06Z","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":"Extremely accurate shape measurements of galaxy images are needed to probe dark energy properties with weak gravitational lensing surveys. To increase survey area with a fixed observing time and pixel count, images from surveys such as the Wide Field Infrared Survey Telescope (WFIRST) or Euclid will necessarily be undersampled and therefore distorted by aliasing. Oversampled, unaliased images can be obtained by combining multiple, dithered exposures of the same source with a suitable reconstruction algorithm. Any such reconstruction must minimally distort the reconstructed images for weak lens","authors_text":"Barnaby Rowe, Charles Shapiro, Christopher M. Hirata, Jason Fucik, Jason Rhodes, Roger Smith, Suresh Seshadri, Timothy Goodsall","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-12T04:32:16Z","title":"Weak Gravitational Lensing Systematics from Image Combination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3339","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:a5b9cacf0a694bf7ca69bfe8957169b4e4105673dae5276e4188c76ed5db3ef2","target":"record","created_at":"2026-05-18T01:47:06Z","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":"5c0878dc43ddc5091632c662ac5eba24416420028f9f6088b27457271e1de574","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2013-10-12T04:32:16Z","title_canon_sha256":"6ef48001267ee845419241ed66d71d94d1f1988a5bc8249495872bc2ddf16edb"},"schema_version":"1.0","source":{"id":"1310.3339","kind":"arxiv","version":1}},"canonical_sha256":"62ae7d3aaba88cb35c0df2077b0320a05dbc8b3ec4b62235de861055b928a027","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62ae7d3aaba88cb35c0df2077b0320a05dbc8b3ec4b62235de861055b928a027","first_computed_at":"2026-05-18T01:47:06.213098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:06.213098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9oEZcfepVypHNiQOJZfqpjBAbhHl7Glg2dbMynuNDyQZIvYWc5CNn9N9h3D1PrlgGXUsfp3X7iMNNbr65PgxAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:06.213518Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3339","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a5b9cacf0a694bf7ca69bfe8957169b4e4105673dae5276e4188c76ed5db3ef2","sha256:a365ea1e23d4c40844955accbb9732499560056eb09c31f15101226eec4d6685"],"state_sha256":"f0c6c5ea9492218f7cbaaadf48d4b975807ae92e3c0679ef15aea50de935e9d6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aYrYeVdC4GsJ2Fjrk2q/EjGg6I6KtDV1tJyuLAy5CTBuxP4RtDpG7lI7NC2j/jkC8TVN+bbJyhwklFPwdvXhCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T23:32:12.404986Z","bundle_sha256":"c35dd2b44de9e20f67b8c4fdc35a4e729bc72b42df594be5d06f4ebebc50d658"}}