{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:XPZN723D2KT6PYNGAZNBVQLJSG","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":"10113dc762f4c7655de2a87a25f48e30d91ddbe505924c9db499c1b6876d1ff9","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-18T19:00:02Z","title_canon_sha256":"21c9aa0c2e7cc5e35a56b1a843e928a968bc07495f37aa7d21c4e9ddff45b3b5"},"schema_version":"1.0","source":{"id":"2201.07249","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.07249","created_at":"2026-07-05T04:29:29Z"},{"alias_kind":"arxiv_version","alias_value":"2201.07249v2","created_at":"2026-07-05T04:29:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.07249","created_at":"2026-07-05T04:29:29Z"},{"alias_kind":"pith_short_12","alias_value":"XPZN723D2KT6","created_at":"2026-07-05T04:29:29Z"},{"alias_kind":"pith_short_16","alias_value":"XPZN723D2KT6PYNG","created_at":"2026-07-05T04:29:29Z"},{"alias_kind":"pith_short_8","alias_value":"XPZN723D","created_at":"2026-07-05T04:29:29Z"}],"graph_snapshots":[{"event_id":"sha256:9e22cfba1fd4dc4e20f96bfb2f97560eb62d353591f0c50fe0087f64c6c24fe6","target":"graph","created_at":"2026-07-05T04:29:29Z","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/2201.07249/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Upper limits from the current generation of interferometers targeting the 21-cm signal from high redshifts have recently begun to rule out physically realistic, though still extreme, models of the Epoch of Reionization (EoR). While inferring the detailed properties of the first galaxies is one of the most important motivations for measuring the high-$z$ 21-cm signal, they can also provide useful constraints on the properties of the intergalactic medium (IGM). Motivated by this, we build a simple, phenomenological model for the 21-cm power spectrum that works directly in terms of IGM properties","authors_text":"Adrian Liu, Andrei Mesinger, Jordan Mirocha, Julian B. Mu\\~noz, Steven R. Furlanetto","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-18T19:00:02Z","title":"A galaxy-free phenomenological model for the 21-cm power spectrum during reionization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.07249","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":"sha256:05555fc30dd835387ab05208004fb9c350a4e9b19af27fe61bca04d9fcefe534","target":"record","created_at":"2026-07-05T04:29:29Z","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":"10113dc762f4c7655de2a87a25f48e30d91ddbe505924c9db499c1b6876d1ff9","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2022-01-18T19:00:02Z","title_canon_sha256":"21c9aa0c2e7cc5e35a56b1a843e928a968bc07495f37aa7d21c4e9ddff45b3b5"},"schema_version":"1.0","source":{"id":"2201.07249","kind":"arxiv","version":2}},"canonical_sha256":"bbf2dfeb63d2a7e7e1a6065a1ac16991bc0eaacc0ee343bdbea6c6c6cf7f9835","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbf2dfeb63d2a7e7e1a6065a1ac16991bc0eaacc0ee343bdbea6c6c6cf7f9835","first_computed_at":"2026-07-05T04:29:29.515773Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:29:29.515773Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TxCpYcCbCs2QleX7PnAoJQbHwgxvP5e8P0Rbitzp22Lz/CvJtUH9XeVluOTQ0UVuqa/sgFoxJx5C3CuJ8y0UDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:29:29.516300Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.07249","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:05555fc30dd835387ab05208004fb9c350a4e9b19af27fe61bca04d9fcefe534","sha256:9e22cfba1fd4dc4e20f96bfb2f97560eb62d353591f0c50fe0087f64c6c24fe6"],"state_sha256":"cd0abebc4cc92bcd59d0482697bb2aeded7f04e3e3bc7d17ff6f3b18d4074866"}