{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:5BM7MERZW7BZMWJJ5DRQ3MYS7F","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":"bbca5888d518cdd79066593aacba60dbd8d94af65cffce7351dfa3acc7c4778e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-04-26T20:29:49Z","title_canon_sha256":"7bb8d5cda4c7b9cbb650ba1f54da57d9437c494462fcd5e4695d4d144de6bdbe"},"schema_version":"1.0","source":{"id":"2104.12864","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.12864","created_at":"2026-07-05T02:35:03Z"},{"alias_kind":"arxiv_version","alias_value":"2104.12864v1","created_at":"2026-07-05T02:35:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.12864","created_at":"2026-07-05T02:35:03Z"},{"alias_kind":"pith_short_12","alias_value":"5BM7MERZW7BZ","created_at":"2026-07-05T02:35:03Z"},{"alias_kind":"pith_short_16","alias_value":"5BM7MERZW7BZMWJJ","created_at":"2026-07-05T02:35:03Z"},{"alias_kind":"pith_short_8","alias_value":"5BM7MERZ","created_at":"2026-07-05T02:35:03Z"}],"graph_snapshots":[{"event_id":"sha256:f1066ceb6b119654e54d9d8f2d44abe154fad179fcbe3a276743b33b0fc857c7","target":"graph","created_at":"2026-07-05T02:35:03Z","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/2104.12864/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Reconstructing the Gaussian initial conditions at the beginning of the Universe from the survey data in a forward modeling framework is a major challenge in cosmology. This requires solving a high dimensional inverse problem with an expensive, non-linear forward model: a cosmological N-body simulation. While intractable until recently, we propose to solve this inference problem using an automatically differentiable N-body solver, combined with a recurrent networks to learn the inference scheme and obtain the maximum-a-posteriori (MAP) estimate of the initial conditions of the Universe. We demo","authors_text":"Chirag Modi, David N. Spergel, Fran\\c{c}ois Lanusse, Laurence Perreault-Levasseur, Uro\\v{s} Seljak","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-04-26T20:29:49Z","title":"CosmicRIM : Reconstructing Early Universe by Combining Differentiable Simulations with Recurrent Inference Machines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.12864","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:b80d0748ad16873be7e593d87122719b7448e65c27fce902bcf00eb86f36030e","target":"record","created_at":"2026-07-05T02:35:03Z","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":"bbca5888d518cdd79066593aacba60dbd8d94af65cffce7351dfa3acc7c4778e","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"astro-ph.CO","submitted_at":"2021-04-26T20:29:49Z","title_canon_sha256":"7bb8d5cda4c7b9cbb650ba1f54da57d9437c494462fcd5e4695d4d144de6bdbe"},"schema_version":"1.0","source":{"id":"2104.12864","kind":"arxiv","version":1}},"canonical_sha256":"e859f61239b7c3965929e8e30db312f9525b8e42f2bce37840a1242696f82299","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e859f61239b7c3965929e8e30db312f9525b8e42f2bce37840a1242696f82299","first_computed_at":"2026-07-05T02:35:03.646713Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:35:03.646713Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZFHmhvlGjS4lnKkgIjROVk2B+sfTPa7fOvxyo8d/3iHCM1qyf/YCSRaUA5h207qF1GDuOeHM4ALHhPWSYOHDBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:35:03.647116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.12864","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b80d0748ad16873be7e593d87122719b7448e65c27fce902bcf00eb86f36030e","sha256:f1066ceb6b119654e54d9d8f2d44abe154fad179fcbe3a276743b33b0fc857c7"],"state_sha256":"7046ab47bf086ac982dc5af89c2b4bb0d498f69c8a85575c552f88cd178e1ce3"}