{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:PT3SBNEWGDSJWFOF5LKCIZMA2J","short_pith_number":"pith:PT3SBNEW","canonical_record":{"source":{"id":"2504.01302","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-02T02:22:56Z","cross_cats_sorted":[],"title_canon_sha256":"f3e35301baf4c6411ce5c40251a066210c5772f7d843e3448c7f978e9e1ba09a","abstract_canon_sha256":"1b655167313acdb2e990c4f9ff5524f6e93aab631fbad4657595de9e1b3d32ee"},"schema_version":"1.0"},"canonical_sha256":"7cf720b49630e49b15c5ead4246580d2715dc9c820b3b3f97ed6526d5c140cea","source":{"kind":"arxiv","id":"2504.01302","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.01302","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"arxiv_version","alias_value":"2504.01302v2","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.01302","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"pith_short_12","alias_value":"PT3SBNEWGDSJ","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"pith_short_16","alias_value":"PT3SBNEWGDSJWFOF","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"pith_short_8","alias_value":"PT3SBNEW","created_at":"2026-07-05T11:38:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:PT3SBNEWGDSJWFOF5LKCIZMA2J","target":"record","payload":{"canonical_record":{"source":{"id":"2504.01302","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-02T02:22:56Z","cross_cats_sorted":[],"title_canon_sha256":"f3e35301baf4c6411ce5c40251a066210c5772f7d843e3448c7f978e9e1ba09a","abstract_canon_sha256":"1b655167313acdb2e990c4f9ff5524f6e93aab631fbad4657595de9e1b3d32ee"},"schema_version":"1.0"},"canonical_sha256":"7cf720b49630e49b15c5ead4246580d2715dc9c820b3b3f97ed6526d5c140cea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:38:50.942374Z","signature_b64":"kJsCkl7ZQO++iihT4qqUOPt4yimILA9/0anliTmITTohyOO4fLRBKr574IE+X114yf9cuGosBWnbpFlprWuPDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7cf720b49630e49b15c5ead4246580d2715dc9c820b3b3f97ed6526d5c140cea","last_reissued_at":"2026-07-05T11:38:50.941960Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:38:50.941960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2504.01302","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T11:38:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HXaGrNauEOgANDORJ4RGzYT9fFKs7W7pMAFMZ0xienOU0S/flLMdfW/2umfgjtUYZmK51ZFn9VZl7UTfx4b7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T11:54:08.130824Z"},"content_sha256":"a3cae16b26e641e270a2f0401c6c70ab754e8f979efcac10ac14a697bf26d6bf","schema_version":"1.0","event_id":"sha256:a3cae16b26e641e270a2f0401c6c70ab754e8f979efcac10ac14a697bf26d6bf"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:PT3SBNEWGDSJWFOF5LKCIZMA2J","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"GPU-Accelerated Gravitational Lensing & Dynamical (GLaD) Modeling for Cosmology and Galaxies","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Aleksi Halkola, Anowar J. Shajib, Aymeric Galan, Han Wang, Michele Cappellari, Miha Cernetic, Sherry H. Suyu","submitted_at":"2025-04-02T02:22:56Z","abstract_excerpt":"Time-delay distance measurements from strongly lensed quasars provide a robust, independent method for determining the Hubble constant ($H_0$). This approach cross-checks $H_0$ estimates from the distance ladder in the late universe and the cosmic microwave background in the early universe. However, the mass-sheet degeneracy in lensing models introduces systematic uncertainty, limiting precision. Dynamical modeling complements strong lensing by constraining the mass distribution with independent observational data. We develop a methodology and software framework for joint modeling of stellar k"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.01302","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.01302/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":"2026-07-05T11:38:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cXznxT7ate+cANiOWvobkXCzWoFDMwtFUhGfVX4BoySDIsyCq1/jhs5fJoIMer8sJz/QR7OFRx3uhj2dD6H1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T11:54:08.131300Z"},"content_sha256":"df5aa0d7bb1434cd62cd5a460c3d28c2a68e07b57b0716aadfa5d5eef5f4a60b","schema_version":"1.0","event_id":"sha256:df5aa0d7bb1434cd62cd5a460c3d28c2a68e07b57b0716aadfa5d5eef5f4a60b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J/bundle.json","state_url":"https://pith.science/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J/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":"2026-08-04T11:54:08Z","links":{"resolver":"https://pith.science/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J","bundle":"https://pith.science/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J/bundle.json","state":"https://pith.science/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PT3SBNEWGDSJWFOF5LKCIZMA2J/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:PT3SBNEWGDSJWFOF5LKCIZMA2J","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":"1b655167313acdb2e990c4f9ff5524f6e93aab631fbad4657595de9e1b3d32ee","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-02T02:22:56Z","title_canon_sha256":"f3e35301baf4c6411ce5c40251a066210c5772f7d843e3448c7f978e9e1ba09a"},"schema_version":"1.0","source":{"id":"2504.01302","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2504.01302","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"arxiv_version","alias_value":"2504.01302v2","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2504.01302","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"pith_short_12","alias_value":"PT3SBNEWGDSJ","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"pith_short_16","alias_value":"PT3SBNEWGDSJWFOF","created_at":"2026-07-05T11:38:50Z"},{"alias_kind":"pith_short_8","alias_value":"PT3SBNEW","created_at":"2026-07-05T11:38:50Z"}],"graph_snapshots":[{"event_id":"sha256:df5aa0d7bb1434cd62cd5a460c3d28c2a68e07b57b0716aadfa5d5eef5f4a60b","target":"graph","created_at":"2026-07-05T11:38:50Z","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/2504.01302/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Time-delay distance measurements from strongly lensed quasars provide a robust, independent method for determining the Hubble constant ($H_0$). This approach cross-checks $H_0$ estimates from the distance ladder in the late universe and the cosmic microwave background in the early universe. However, the mass-sheet degeneracy in lensing models introduces systematic uncertainty, limiting precision. Dynamical modeling complements strong lensing by constraining the mass distribution with independent observational data. We develop a methodology and software framework for joint modeling of stellar k","authors_text":"Aleksi Halkola, Anowar J. Shajib, Aymeric Galan, Han Wang, Michele Cappellari, Miha Cernetic, Sherry H. Suyu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-02T02:22:56Z","title":"GPU-Accelerated Gravitational Lensing & Dynamical (GLaD) Modeling for Cosmology and Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.01302","kind":"arxiv","version":2},"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:a3cae16b26e641e270a2f0401c6c70ab754e8f979efcac10ac14a697bf26d6bf","target":"record","created_at":"2026-07-05T11:38:50Z","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":"1b655167313acdb2e990c4f9ff5524f6e93aab631fbad4657595de9e1b3d32ee","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2025-04-02T02:22:56Z","title_canon_sha256":"f3e35301baf4c6411ce5c40251a066210c5772f7d843e3448c7f978e9e1ba09a"},"schema_version":"1.0","source":{"id":"2504.01302","kind":"arxiv","version":2}},"canonical_sha256":"7cf720b49630e49b15c5ead4246580d2715dc9c820b3b3f97ed6526d5c140cea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7cf720b49630e49b15c5ead4246580d2715dc9c820b3b3f97ed6526d5c140cea","first_computed_at":"2026-07-05T11:38:50.941960Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:38:50.941960Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kJsCkl7ZQO++iihT4qqUOPt4yimILA9/0anliTmITTohyOO4fLRBKr574IE+X114yf9cuGosBWnbpFlprWuPDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:38:50.942374Z","signed_message":"canonical_sha256_bytes"},"source_id":"2504.01302","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3cae16b26e641e270a2f0401c6c70ab754e8f979efcac10ac14a697bf26d6bf","sha256:df5aa0d7bb1434cd62cd5a460c3d28c2a68e07b57b0716aadfa5d5eef5f4a60b"],"state_sha256":"55d43d9f411ee599511067dee37f4e488e1def72c07378bf3176c90d2316a85a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VLQIU5qu+ZnNq+atO8oBBb+KjNAshof7vFWCfWzaw/dvJDZI20Pw/ywU0CSIrr930v+8BlV6avzI+oGqgQliDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T11:54:08.135145Z","bundle_sha256":"ac076915dc54bff8fc69a90e52a45c25904dfe8447a5823b5b7a553754cad1ee"}}