{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:KD4LMTBO62XPJBRCL2RBTGEF3X","short_pith_number":"pith:KD4LMTBO","canonical_record":{"source":{"id":"1201.2127","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-10T17:54:27Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"e078237fbd3561ebc3a60ca3d4c8b05c8bd67fdbdbeabc0a15b353e5411ad335","abstract_canon_sha256":"bfdf4fdd60b60a4964d9cd559594fe56c31c39606096dc71a8551ed448484f12"},"schema_version":"1.0"},"canonical_sha256":"50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c","source":{"kind":"arxiv","id":"1201.2127","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.2127","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"1201.2127v1","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.2127","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"KD4LMTBO62XP","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KD4LMTBO62XPJBRC","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KD4LMTBO","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:KD4LMTBO62XPJBRCL2RBTGEF3X","target":"record","payload":{"canonical_record":{"source":{"id":"1201.2127","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-10T17:54:27Z","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"title_canon_sha256":"e078237fbd3561ebc3a60ca3d4c8b05c8bd67fdbdbeabc0a15b353e5411ad335","abstract_canon_sha256":"bfdf4fdd60b60a4964d9cd559594fe56c31c39606096dc71a8551ed448484f12"},"schema_version":"1.0"},"canonical_sha256":"50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:58:53.265198Z","signature_b64":"yXY98pXm0YuaEgTllKM4Nl/8KHD/TN1NDoehayNr+V44/9lhmG/IJUTOYmYqBE/pDQuERB4JgiCGTt+Mla0IDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c","last_reissued_at":"2026-05-18T01:58:53.264441Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:58:53.264441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1201.2127","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":"2026-05-18T01:58:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IEXm5/K2e7dITwz5C3+N/qXrcMBeDbBqNk/kteCfVLOLUpGwxl7RxJ7jMMQazTv6FpCdmqlkS9blHZ3ZzJVdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:35:30.693975Z"},"content_sha256":"4387f3efb09c2b1eee88f7ce330d51087f5f8a76f5b505c4961ded48e55ed550","schema_version":"1.0","event_id":"sha256:4387f3efb09c2b1eee88f7ce330d51087f5f8a76f5b505c4961ded48e55ed550"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:KD4LMTBO62XPJBRCL2RBTGEF3X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong Gravitational Lens Modeling with Spatially Variant Point Spread Functions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA","astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"Adam Rogers, Jason D. Fiege","submitted_at":"2012-01-10T17:54:27Z","abstract_excerpt":"Astronomical instruments generally possess spatially variant point-spread functions, which determine the amount by which an image pixel is blurred as a function of position. Several techniques have been devised to handle this variability in the context of the standard image deconvolution problem. We have developed an iterative gravitational lens modeling code called Mirage that determines the parameters of pixelated source intensity distributions for a given lens model. We are able to include the effects of spatially variant point-spread functions using the iterative procedures in this lensing"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.2127","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":"2026-05-18T01:58:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dgrJ6GCcCF7M1xc4d9bXlfNHE3DTzBJN/VZk35LHkrcK5w8C9Z0GPn9JNqg0ie0QFiOOPurOX3Z+wXS9Y3JlDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T11:35:30.694333Z"},"content_sha256":"4476d447c567faa51ea8c280b41766ed34c03ac083893c4a47dbd0c1734a6754","schema_version":"1.0","event_id":"sha256:4476d447c567faa51ea8c280b41766ed34c03ac083893c4a47dbd0c1734a6754"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KD4LMTBO62XPJBRCL2RBTGEF3X/bundle.json","state_url":"https://pith.science/pith/KD4LMTBO62XPJBRCL2RBTGEF3X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KD4LMTBO62XPJBRCL2RBTGEF3X/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":"2026-05-28T11:35:30Z","links":{"resolver":"https://pith.science/pith/KD4LMTBO62XPJBRCL2RBTGEF3X","bundle":"https://pith.science/pith/KD4LMTBO62XPJBRCL2RBTGEF3X/bundle.json","state":"https://pith.science/pith/KD4LMTBO62XPJBRCL2RBTGEF3X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KD4LMTBO62XPJBRCL2RBTGEF3X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:KD4LMTBO62XPJBRCL2RBTGEF3X","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":"bfdf4fdd60b60a4964d9cd559594fe56c31c39606096dc71a8551ed448484f12","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-10T17:54:27Z","title_canon_sha256":"e078237fbd3561ebc3a60ca3d4c8b05c8bd67fdbdbeabc0a15b353e5411ad335"},"schema_version":"1.0","source":{"id":"1201.2127","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.2127","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"arxiv_version","alias_value":"1201.2127v1","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.2127","created_at":"2026-05-18T01:58:53Z"},{"alias_kind":"pith_short_12","alias_value":"KD4LMTBO62XP","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"KD4LMTBO62XPJBRC","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"KD4LMTBO","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:4476d447c567faa51ea8c280b41766ed34c03ac083893c4a47dbd0c1734a6754","target":"graph","created_at":"2026-05-18T01:58:53Z","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":"Astronomical instruments generally possess spatially variant point-spread functions, which determine the amount by which an image pixel is blurred as a function of position. Several techniques have been devised to handle this variability in the context of the standard image deconvolution problem. We have developed an iterative gravitational lens modeling code called Mirage that determines the parameters of pixelated source intensity distributions for a given lens model. We are able to include the effects of spatially variant point-spread functions using the iterative procedures in this lensing","authors_text":"Adam Rogers, Jason D. Fiege","cross_cats":["astro-ph.GA","astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-10T17:54:27Z","title":"Strong Gravitational Lens Modeling with Spatially Variant Point Spread Functions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.2127","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":"sha256:4387f3efb09c2b1eee88f7ce330d51087f5f8a76f5b505c4961ded48e55ed550","target":"record","created_at":"2026-05-18T01:58:53Z","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":"bfdf4fdd60b60a4964d9cd559594fe56c31c39606096dc71a8551ed448484f12","cross_cats_sorted":["astro-ph.GA","astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-10T17:54:27Z","title_canon_sha256":"e078237fbd3561ebc3a60ca3d4c8b05c8bd67fdbdbeabc0a15b353e5411ad335"},"schema_version":"1.0","source":{"id":"1201.2127","kind":"arxiv","version":1}},"canonical_sha256":"50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"50f8b64c2ef6aef486225ea2199885ddd810cd6b4f12c42196cb2d75a36ba38c","first_computed_at":"2026-05-18T01:58:53.264441Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:53.264441Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yXY98pXm0YuaEgTllKM4Nl/8KHD/TN1NDoehayNr+V44/9lhmG/IJUTOYmYqBE/pDQuERB4JgiCGTt+Mla0IDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:53.265198Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.2127","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4387f3efb09c2b1eee88f7ce330d51087f5f8a76f5b505c4961ded48e55ed550","sha256:4476d447c567faa51ea8c280b41766ed34c03ac083893c4a47dbd0c1734a6754"],"state_sha256":"8ccb94d9a5504cad09934f4c5ecd7e0cd76288e6d860ed38011deb85cf651be9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcDUXKs2XCZVZREa8s1dw6iFfi425YJl1jqJDytrpuJzFFHn9lo9taNsvvBB0NjoD9SQ1G5BY0InxFm0D6NmBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T11:35:30.696233Z","bundle_sha256":"8eeb8474caa8f515af72bfec38e049c0d27e4a8adeb919659dc4e01a29fd0386"}}