{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:YVAXBAN2HDS7MED3DLDNB6NBVC","short_pith_number":"pith:YVAXBAN2","canonical_record":{"source":{"id":"2403.16253","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-24T18:13:48Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"d53326bdae837f286e7993ba4e3d446caa0e5b661d049cbd2b8075c29062d9c3","abstract_canon_sha256":"15f1a90c70cc01b3709cbf022fe96ba823066bea1d13ed57959ec67328ae9064"},"schema_version":"1.0"},"canonical_sha256":"c5417081ba38e5f6107b1ac6d0f9a1a8b4f636a3d627b50cce2c2405c74c1f92","source":{"kind":"arxiv","id":"2403.16253","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.16253","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"arxiv_version","alias_value":"2403.16253v1","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.16253","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"pith_short_12","alias_value":"YVAXBAN2HDS7","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"pith_short_16","alias_value":"YVAXBAN2HDS7MED3","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"pith_short_8","alias_value":"YVAXBAN2","created_at":"2026-07-05T08:00:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:YVAXBAN2HDS7MED3DLDNB6NBVC","target":"record","payload":{"canonical_record":{"source":{"id":"2403.16253","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-24T18:13:48Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"d53326bdae837f286e7993ba4e3d446caa0e5b661d049cbd2b8075c29062d9c3","abstract_canon_sha256":"15f1a90c70cc01b3709cbf022fe96ba823066bea1d13ed57959ec67328ae9064"},"schema_version":"1.0"},"canonical_sha256":"c5417081ba38e5f6107b1ac6d0f9a1a8b4f636a3d627b50cce2c2405c74c1f92","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:00:12.805211Z","signature_b64":"iM0XVrDTeJ9Ft9yPWafayirWWgZb5JRbsNw+jatqeO05HRCB6PIdLTG3BYOseAA8uM/FQIBdyB41HmByCFm4AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c5417081ba38e5f6107b1ac6d0f9a1a8b4f636a3d627b50cce2c2405c74c1f92","last_reissued_at":"2026-07-05T08:00:12.804730Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:00:12.804730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2403.16253","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":"2026-07-05T08:00:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yb4CiPWf1mKb28SXznzxg94Iel74v1b5O3+muzAqc6777El2iS1qguwl/YQxYRCo/Xi8Xs4ogHjceYEJB21yDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T13:32:25.250474Z"},"content_sha256":"43213b801bb477f086cb0a8a8eb41ab69c1a3241e138fbc78465ada2435efc03","schema_version":"1.0","event_id":"sha256:43213b801bb477f086cb0a8a8eb41ab69c1a3241e138fbc78465ada2435efc03"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:YVAXBAN2HDS7MED3DLDNB6NBVC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unveiling Lens Light Complexity with A Novel Multi-Gaussian Expansion Approach for Strong Gravitational Lensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Andrew Robertson, Aris Amvrosiadis, Carlos S. Frenk, James W. Nightingale, Jo\\~ao Paulo C. Fran\\c{c}a, Qiuhan He, Ran Li, Richard Massey, Samuel C. Lange, Shaun Cole, Xiaoyue Cao","submitted_at":"2024-03-24T18:13:48Z","abstract_excerpt":"In a strong gravitational lensing system, the distorted light from a source is analysed to infer the properties of the lens. However, light emitted by the lens itself can contaminate the image of the source, introducing systematic errors in the analysis. We present a simple and efficient lens light model based on the well-tested multi-Gaussian expansion (MGE) method for representing galaxy surface brightness profiles, which we combine with a semi-linear inversion scheme for pixelized source modelling. Testing it against realistic mock lensing images, we show that our scheme can fit the lensed "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.16253","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2403.16253/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T08:00:12Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sNddIWKpiYGn6gqAQ6o/7LApFE245q0EOrPxj7yJCGFiDRVXg0mNntuIzzMnISpBwi0oeLy9i3tI/EVl/+gACw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T13:32:25.250982Z"},"content_sha256":"677fd6de99405727414fcf1370d1e4706e5e76917823828c4557ede8fa0f736b","schema_version":"1.0","event_id":"sha256:677fd6de99405727414fcf1370d1e4706e5e76917823828c4557ede8fa0f736b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YVAXBAN2HDS7MED3DLDNB6NBVC/bundle.json","state_url":"https://pith.science/pith/YVAXBAN2HDS7MED3DLDNB6NBVC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YVAXBAN2HDS7MED3DLDNB6NBVC/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":"2026-08-02T13:32:25Z","links":{"resolver":"https://pith.science/pith/YVAXBAN2HDS7MED3DLDNB6NBVC","bundle":"https://pith.science/pith/YVAXBAN2HDS7MED3DLDNB6NBVC/bundle.json","state":"https://pith.science/pith/YVAXBAN2HDS7MED3DLDNB6NBVC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YVAXBAN2HDS7MED3DLDNB6NBVC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:YVAXBAN2HDS7MED3DLDNB6NBVC","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":"15f1a90c70cc01b3709cbf022fe96ba823066bea1d13ed57959ec67328ae9064","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-24T18:13:48Z","title_canon_sha256":"d53326bdae837f286e7993ba4e3d446caa0e5b661d049cbd2b8075c29062d9c3"},"schema_version":"1.0","source":{"id":"2403.16253","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2403.16253","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"arxiv_version","alias_value":"2403.16253v1","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2403.16253","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"pith_short_12","alias_value":"YVAXBAN2HDS7","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"pith_short_16","alias_value":"YVAXBAN2HDS7MED3","created_at":"2026-07-05T08:00:12Z"},{"alias_kind":"pith_short_8","alias_value":"YVAXBAN2","created_at":"2026-07-05T08:00:12Z"}],"graph_snapshots":[{"event_id":"sha256:677fd6de99405727414fcf1370d1e4706e5e76917823828c4557ede8fa0f736b","target":"graph","created_at":"2026-07-05T08:00:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2403.16253/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a strong gravitational lensing system, the distorted light from a source is analysed to infer the properties of the lens. However, light emitted by the lens itself can contaminate the image of the source, introducing systematic errors in the analysis. We present a simple and efficient lens light model based on the well-tested multi-Gaussian expansion (MGE) method for representing galaxy surface brightness profiles, which we combine with a semi-linear inversion scheme for pixelized source modelling. Testing it against realistic mock lensing images, we show that our scheme can fit the lensed ","authors_text":"Andrew Robertson, Aris Amvrosiadis, Carlos S. Frenk, James W. Nightingale, Jo\\~ao Paulo C. Fran\\c{c}a, Qiuhan He, Ran Li, Richard Massey, Samuel C. Lange, Shaun Cole, Xiaoyue Cao","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-24T18:13:48Z","title":"Unveiling Lens Light Complexity with A Novel Multi-Gaussian Expansion Approach for Strong Gravitational Lensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2403.16253","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":"sha256:43213b801bb477f086cb0a8a8eb41ab69c1a3241e138fbc78465ada2435efc03","target":"record","created_at":"2026-07-05T08:00:12Z","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":"15f1a90c70cc01b3709cbf022fe96ba823066bea1d13ed57959ec67328ae9064","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2024-03-24T18:13:48Z","title_canon_sha256":"d53326bdae837f286e7993ba4e3d446caa0e5b661d049cbd2b8075c29062d9c3"},"schema_version":"1.0","source":{"id":"2403.16253","kind":"arxiv","version":1}},"canonical_sha256":"c5417081ba38e5f6107b1ac6d0f9a1a8b4f636a3d627b50cce2c2405c74c1f92","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c5417081ba38e5f6107b1ac6d0f9a1a8b4f636a3d627b50cce2c2405c74c1f92","first_computed_at":"2026-07-05T08:00:12.804730Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:00:12.804730Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iM0XVrDTeJ9Ft9yPWafayirWWgZb5JRbsNw+jatqeO05HRCB6PIdLTG3BYOseAA8uM/FQIBdyB41HmByCFm4AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:00:12.805211Z","signed_message":"canonical_sha256_bytes"},"source_id":"2403.16253","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:43213b801bb477f086cb0a8a8eb41ab69c1a3241e138fbc78465ada2435efc03","sha256:677fd6de99405727414fcf1370d1e4706e5e76917823828c4557ede8fa0f736b"],"state_sha256":"c9a2833546b3f99f92bf1a436e6e64f4854ef04d1344337fcb6af6845806bebd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4SuE+vFYxmvlc397dw0JibV0xKH/Tth5LosboCcpJdll6L6OsDUQBxzxsTCyBCEYysGux8Ax5tW81lr8mo3dCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T13:32:25.254834Z","bundle_sha256":"cae7f4d6f7a2721dafc389693989ef590ef5e42658a6ddf4c350206fcae0496a"}}