{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:EZC2LC2ZJDVFDBXKJPV2BEWIL7","short_pith_number":"pith:EZC2LC2Z","schema_version":"1.0","canonical_sha256":"2645a58b5948ea5186ea4beba092c85ff8581d78e343a03491b6ba3156b502ac","source":{"kind":"arxiv","id":"1412.7436","version":2},"attestation_state":"computed","paper":{"title":"Adaptive Semi-linear Inversion of Strong Gravitational Lens Imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"James Nightingale, Simon Dye","submitted_at":"2014-12-23T16:35:08Z","abstract_excerpt":"We present a new pixelized method for the inversion of gravitationally lensed extended source images which we term adaptive semi-linear inversion (SLI). At the heart of the method is an h-means clustering algorithm which is used to derive a source plane pixelization that adapts to the lens model magnification. The distinguishing feature of adaptive SLI is that every pixelization is derived from a random initialization, ensuring that data discretization is performed in a completely different and unique way for every lens model parameter set. We compare standard SLI on a fixed source pixel grid "},"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":"1412.7436","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-12-23T16:35:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"b9391a2354cc0dbdc2d3dd103dba27fefa4f806799345e9ff86264a24a5e5415","abstract_canon_sha256":"19b471eec5ed07bf44ed5be7f68a9f595cba4d5673b7b76f7615db1b8fb93f2e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:49.507707Z","signature_b64":"lH0jvDOTsiHqTvdQF2c8AFijOCoGXhcRTFpqHUrpo14y5Fq/rYMnatXXSAu2OQj+iKyGbDJMoq8tG7KytrQSDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2645a58b5948ea5186ea4beba092c85ff8581d78e343a03491b6ba3156b502ac","last_reissued_at":"2026-05-18T01:35:49.506939Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:49.506939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Adaptive Semi-linear Inversion of Strong Gravitational Lens Imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"James Nightingale, Simon Dye","submitted_at":"2014-12-23T16:35:08Z","abstract_excerpt":"We present a new pixelized method for the inversion of gravitationally lensed extended source images which we term adaptive semi-linear inversion (SLI). At the heart of the method is an h-means clustering algorithm which is used to derive a source plane pixelization that adapts to the lens model magnification. The distinguishing feature of adaptive SLI is that every pixelization is derived from a random initialization, ensuring that data discretization is performed in a completely different and unique way for every lens model parameter set. We compare standard SLI on a fixed source pixel grid "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.7436","kind":"arxiv","version":2},"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":"1412.7436","created_at":"2026-05-18T01:35:49.507080+00:00"},{"alias_kind":"arxiv_version","alias_value":"1412.7436v2","created_at":"2026-05-18T01:35:49.507080+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.7436","created_at":"2026-05-18T01:35:49.507080+00:00"},{"alias_kind":"pith_short_12","alias_value":"EZC2LC2ZJDVF","created_at":"2026-05-18T12:28:28.263976+00:00"},{"alias_kind":"pith_short_16","alias_value":"EZC2LC2ZJDVFDBXK","created_at":"2026-05-18T12:28:28.263976+00:00"},{"alias_kind":"pith_short_8","alias_value":"EZC2LC2Z","created_at":"2026-05-18T12:28:28.263976+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.21212","citing_title":"Detection of a dark matter subhalo in the strongly lensed system PJ011646","ref_index":55,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7","json":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7.json","graph_json":"https://pith.science/api/pith-number/EZC2LC2ZJDVFDBXKJPV2BEWIL7/graph.json","events_json":"https://pith.science/api/pith-number/EZC2LC2ZJDVFDBXKJPV2BEWIL7/events.json","paper":"https://pith.science/paper/EZC2LC2Z"},"agent_actions":{"view_html":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7","download_json":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7.json","view_paper":"https://pith.science/paper/EZC2LC2Z","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1412.7436&json=true","fetch_graph":"https://pith.science/api/pith-number/EZC2LC2ZJDVFDBXKJPV2BEWIL7/graph.json","fetch_events":"https://pith.science/api/pith-number/EZC2LC2ZJDVFDBXKJPV2BEWIL7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7/action/storage_attestation","attest_author":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7/action/author_attestation","sign_citation":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7/action/citation_signature","submit_replication":"https://pith.science/pith/EZC2LC2ZJDVFDBXKJPV2BEWIL7/action/replication_record"}},"created_at":"2026-05-18T01:35:49.507080+00:00","updated_at":"2026-05-18T01:35:49.507080+00:00"}