{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:F6PIZ3G7VP3AXTVKF6KSSM4Z7F","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":"8ddce0710779d9cb6ab5b9e55f38dacd6cebd72e85a1bf074f1dd521be4b2d4b","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-14T11:01:15Z","title_canon_sha256":"46a4b07623488a8da3d73c8f19706f26496d9efaaa136d9db22083b1fd21bd27"},"schema_version":"1.0","source":{"id":"2205.07037","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.07037","created_at":"2026-07-05T07:13:19Z"},{"alias_kind":"arxiv_version","alias_value":"2205.07037v2","created_at":"2026-07-05T07:13:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.07037","created_at":"2026-07-05T07:13:19Z"},{"alias_kind":"pith_short_12","alias_value":"F6PIZ3G7VP3A","created_at":"2026-07-05T07:13:19Z"},{"alias_kind":"pith_short_16","alias_value":"F6PIZ3G7VP3AXTVK","created_at":"2026-07-05T07:13:19Z"},{"alias_kind":"pith_short_8","alias_value":"F6PIZ3G7","created_at":"2026-07-05T07:13:19Z"}],"graph_snapshots":[{"event_id":"sha256:8daa56f6eb3dec02757b7de5f82495a2becf79e8e702761428411ca82182d5ff","target":"graph","created_at":"2026-07-05T07:13:19Z","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/2205.07037/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Current endeavours in exoplanet characterisation rely on atmospheric retrieval to quantify crucial physical properties of remote exoplanets from observations. However, the scalability and efficiency of the technique are under strain with increasing spectroscopic resolution and forward model complexity. The situation becomes more acute with the recent launch of the James Webb Space Telescope and other upcoming missions. Recent advances in Machine Learning provide optimisation-based Variational Inference as an alternative approach to perform approximate Bayesian Posterior Inference. In this inve","authors_text":"Ahmed Al-Refaie, Ingo Waldmann, Kai Hou Yip, Quentin Changeat","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-14T11:01:15Z","title":"To Sample or Not To Sample: Retrieving Exoplanetary Spectra with Variational Inference and Normalising Flows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.07037","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:d92b4c1ecb7be6cefa5f96cbfa730a0477953df57c32cbca99746b2446cc415e","target":"record","created_at":"2026-07-05T07:13:19Z","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":"8ddce0710779d9cb6ab5b9e55f38dacd6cebd72e85a1bf074f1dd521be4b2d4b","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-05-14T11:01:15Z","title_canon_sha256":"46a4b07623488a8da3d73c8f19706f26496d9efaaa136d9db22083b1fd21bd27"},"schema_version":"1.0","source":{"id":"2205.07037","kind":"arxiv","version":2}},"canonical_sha256":"2f9e8cecdfabf60bceaa2f95293399f9471346ec64eb482aed1cba0b0742e031","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f9e8cecdfabf60bceaa2f95293399f9471346ec64eb482aed1cba0b0742e031","first_computed_at":"2026-07-05T07:13:19.269586Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:13:19.269586Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"StvwaJFHBlsCdFGEVSkRUJTXkQbQq3Ph9njbNwfNaqaYf9tgbI8E2wEl/k0q2sUImzz5dFkgNAhYHFbPZ/6lDg==","signature_status":"signed_v1","signed_at":"2026-07-05T07:13:19.269979Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.07037","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d92b4c1ecb7be6cefa5f96cbfa730a0477953df57c32cbca99746b2446cc415e","sha256:8daa56f6eb3dec02757b7de5f82495a2becf79e8e702761428411ca82182d5ff"],"state_sha256":"66ec8381083d8d423cc5375a9a0c61917e7c663335d73dbd18b0225ae30c0595"}