{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:O2NTBV4L3MIOJDFWTAKFIT53AM","short_pith_number":"pith:O2NTBV4L","schema_version":"1.0","canonical_sha256":"769b30d78bdb10e48cb69814544fbb0331e9ca484a5ff20e5e2f381d4def9cfa","source":{"kind":"arxiv","id":"1502.00008","version":1},"attestation_state":"computed","paper":{"title":"Gravitational lens modelling in a citizen science context","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"Anupreeta More, Aprajita Verma, Christine Macmillan, Claude Cornen, Elisabeth Baeten, Jonas Odermatt, Jonathan Coles, Julianne K. Wilcox, Phil Marshall, Prasenjit Saha, Rafael K\\\"ung, Surhud More","submitted_at":"2015-01-30T21:00:12Z","abstract_excerpt":"We develop a method to enable collaborative modelling of gravitational lenses and lens candidates, that could be used by non-professional lens enthusiasts. It uses an existing free-form modelling program (glass), but enables the input to this code to be provided in a novel way, via a user-generated diagram that is essentially a sketch of an arrival-time surface. We report on an implementation of this method, SpaghettiLens, which has been tested in a modelling challenge using 29 simulated lenses drawn from a larger set created for the Space Warps citizen science strong lens search. We find that"},"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":"1502.00008","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2015-01-30T21:00:12Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"b39d67579a85551b17eff8f92622037341ba1a707533864fa91c2cf6d83e38f9","abstract_canon_sha256":"b1622503be40e222ac719e1c42faa1334564489b73a6e9172f30a7118b1a5d5a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:28:13.030365Z","signature_b64":"Reppr3G+yWGZ7cZxH/eATExWtzyUnwimGb0CYjVnHKFE63eOCglk8BLzD4hs8Lef/u1UqIWekmEsF+SfFE20DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"769b30d78bdb10e48cb69814544fbb0331e9ca484a5ff20e5e2f381d4def9cfa","last_reissued_at":"2026-05-18T02:28:13.029703Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:28:13.029703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational lens modelling in a citizen science context","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.IM","authors_text":"Anupreeta More, Aprajita Verma, Christine Macmillan, Claude Cornen, Elisabeth Baeten, Jonas Odermatt, Jonathan Coles, Julianne K. Wilcox, Phil Marshall, Prasenjit Saha, Rafael K\\\"ung, Surhud More","submitted_at":"2015-01-30T21:00:12Z","abstract_excerpt":"We develop a method to enable collaborative modelling of gravitational lenses and lens candidates, that could be used by non-professional lens enthusiasts. It uses an existing free-form modelling program (glass), but enables the input to this code to be provided in a novel way, via a user-generated diagram that is essentially a sketch of an arrival-time surface. We report on an implementation of this method, SpaghettiLens, which has been tested in a modelling challenge using 29 simulated lenses drawn from a larger set created for the Space Warps citizen science strong lens search. We find that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00008","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1502.00008","created_at":"2026-05-18T02:28:13.029782+00:00"},{"alias_kind":"arxiv_version","alias_value":"1502.00008v1","created_at":"2026-05-18T02:28:13.029782+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00008","created_at":"2026-05-18T02:28:13.029782+00:00"},{"alias_kind":"pith_short_12","alias_value":"O2NTBV4L3MIO","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_16","alias_value":"O2NTBV4L3MIOJDFW","created_at":"2026-05-18T12:29:34.919912+00:00"},{"alias_kind":"pith_short_8","alias_value":"O2NTBV4L","created_at":"2026-05-18T12:29:34.919912+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM","json":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM.json","graph_json":"https://pith.science/api/pith-number/O2NTBV4L3MIOJDFWTAKFIT53AM/graph.json","events_json":"https://pith.science/api/pith-number/O2NTBV4L3MIOJDFWTAKFIT53AM/events.json","paper":"https://pith.science/paper/O2NTBV4L"},"agent_actions":{"view_html":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM","download_json":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM.json","view_paper":"https://pith.science/paper/O2NTBV4L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1502.00008&json=true","fetch_graph":"https://pith.science/api/pith-number/O2NTBV4L3MIOJDFWTAKFIT53AM/graph.json","fetch_events":"https://pith.science/api/pith-number/O2NTBV4L3MIOJDFWTAKFIT53AM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM/action/storage_attestation","attest_author":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM/action/author_attestation","sign_citation":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM/action/citation_signature","submit_replication":"https://pith.science/pith/O2NTBV4L3MIOJDFWTAKFIT53AM/action/replication_record"}},"created_at":"2026-05-18T02:28:13.029782+00:00","updated_at":"2026-05-18T02:28:13.029782+00:00"}