{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:X6WRELN5HXV7BIEK3MW7IIGEIA","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":"ccc35c36fc0df0495da05cdc0035715941330a8dfa2a9f6b2c7a2e1bef4b8929","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-05-02T06:35:06Z","title_canon_sha256":"21ec896a21a667263969763c4538fb0990ed6407b37d315e79240b5addc3345a"},"schema_version":"1.0","source":{"id":"2305.01224","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2305.01224","created_at":"2026-07-05T06:13:39Z"},{"alias_kind":"arxiv_version","alias_value":"2305.01224v2","created_at":"2026-07-05T06:13:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2305.01224","created_at":"2026-07-05T06:13:39Z"},{"alias_kind":"pith_short_12","alias_value":"X6WRELN5HXV7","created_at":"2026-07-05T06:13:39Z"},{"alias_kind":"pith_short_16","alias_value":"X6WRELN5HXV7BIEK","created_at":"2026-07-05T06:13:39Z"},{"alias_kind":"pith_short_8","alias_value":"X6WRELN5","created_at":"2026-07-05T06:13:39Z"}],"graph_snapshots":[{"event_id":"sha256:7bffa9d91aa703a527245d8e35c2dea14ea812a5b2aa7f474156cb8cfcb41923","target":"graph","created_at":"2026-07-05T06:13:39Z","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/2305.01224/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Symbolic expressions for cosmic backreaction and mean redshift drift in a range of 2-region models in terms of average quantities are presented. The demonstration that these expressions can be obtained constitutes the opening of a new avenue towards understanding the effects of cosmic backreaction in our universe: With a symbolic expression for the redshift drift at hand, the redshift drift can be used to constrain cosmological parameters including the large-scale expansion rate and backreaction. In addition, by introducing symbolic expressions for cosmic backreaction, this quantity can be con","authors_text":"S. M. Koksbang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-05-02T06:35:06Z","title":"Machine learning cosmic backreaction and its effects on observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2305.01224","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":"sha256:40c25c6aeb5ead4c067f5c164a35ef8bd9d642687570420ab13bff7633771de2","target":"record","created_at":"2026-07-05T06:13:39Z","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":"ccc35c36fc0df0495da05cdc0035715941330a8dfa2a9f6b2c7a2e1bef4b8929","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-05-02T06:35:06Z","title_canon_sha256":"21ec896a21a667263969763c4538fb0990ed6407b37d315e79240b5addc3345a"},"schema_version":"1.0","source":{"id":"2305.01224","kind":"arxiv","version":2}},"canonical_sha256":"bfad122dbd3debf0a08adb2df420c4403737426558feb0f101bbf1ec0b3bee41","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfad122dbd3debf0a08adb2df420c4403737426558feb0f101bbf1ec0b3bee41","first_computed_at":"2026-07-05T06:13:39.092986Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:13:39.092986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aRpcoa711PUe0u/q/KhlfZ5misdc+KL0oBoKg07UTnWRPA6mv61vX70QrUfizA8S0f/Ow7LHBHDmy5GC+sZnBg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:13:39.093462Z","signed_message":"canonical_sha256_bytes"},"source_id":"2305.01224","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40c25c6aeb5ead4c067f5c164a35ef8bd9d642687570420ab13bff7633771de2","sha256:7bffa9d91aa703a527245d8e35c2dea14ea812a5b2aa7f474156cb8cfcb41923"],"state_sha256":"c90bd5df232f1b73e7e7a0e7b058b80ea7ce077e7cfd581a869f8af95e176e46"}