{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BJWGDJCG22LE3QVF4KI6M2XCYK","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":"becd720ab3ccf4b0c9c24265f2fd19bcbb67fb55b7aff5733a3a414febb1c8b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-23T08:38:08Z","title_canon_sha256":"ca3803fa6c22572b3b82de4458f6c58a1af153272917225aae269bcfee763636"},"schema_version":"1.0","source":{"id":"2508.16948","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2508.16948","created_at":"2026-07-05T11:58:06Z"},{"alias_kind":"arxiv_version","alias_value":"2508.16948v1","created_at":"2026-07-05T11:58:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2508.16948","created_at":"2026-07-05T11:58:06Z"},{"alias_kind":"pith_short_12","alias_value":"BJWGDJCG22LE","created_at":"2026-07-05T11:58:06Z"},{"alias_kind":"pith_short_16","alias_value":"BJWGDJCG22LE3QVF","created_at":"2026-07-05T11:58:06Z"},{"alias_kind":"pith_short_8","alias_value":"BJWGDJCG","created_at":"2026-07-05T11:58:06Z"}],"graph_snapshots":[{"event_id":"sha256:d3263be97040ed5d5fa3cd29b84512509fc59c35e3e714d1ed26d4a425f99c47","target":"graph","created_at":"2026-07-05T11:58:06Z","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/2508.16948/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"I present written notes from three lectures given at the 54th Saas-Fee Advanced Course of the Swiss Society of Astrophysics and Astronomy in January 2025 entitled \"Galaxies and Black Holes in the First Billion Years as seen by the JWST\". I focused my lectures on progress in studies of cosmic reionisation, the properties of galaxies in the reionisation era, topics related to the redshift frontier and the search for Population III stars. The lectures were given to graduate students in astrophysics and cover both pedagogical material as well as observational results from the first two and half ye","authors_text":"Richard S Ellis (UCL)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-23T08:38:08Z","title":"Galaxies and Black Holes in the First Billion Years"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.16948","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":"sha256:2f8d763e322f8e00e69aeebe72f91ac3086ccb477009ffb95d734244438f280c","target":"record","created_at":"2026-07-05T11:58:06Z","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":"becd720ab3ccf4b0c9c24265f2fd19bcbb67fb55b7aff5733a3a414febb1c8b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-08-23T08:38:08Z","title_canon_sha256":"ca3803fa6c22572b3b82de4458f6c58a1af153272917225aae269bcfee763636"},"schema_version":"1.0","source":{"id":"2508.16948","kind":"arxiv","version":1}},"canonical_sha256":"0a6c61a446d6964dc2a5e291e66ae2c280d5272d95719782a0cac0ae32201189","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a6c61a446d6964dc2a5e291e66ae2c280d5272d95719782a0cac0ae32201189","first_computed_at":"2026-07-05T11:58:06.962234Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:58:06.962234Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6Hzm4C7oS/f31N3OPGTcqGN2YBsAWLRbm0bLVdUdIyTeQQrqAWTt5XQ+b3a7Hlw1oHKNFo5XiYrnHzkbwHazAA==","signature_status":"signed_v1","signed_at":"2026-07-05T11:58:06.962678Z","signed_message":"canonical_sha256_bytes"},"source_id":"2508.16948","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f8d763e322f8e00e69aeebe72f91ac3086ccb477009ffb95d734244438f280c","sha256:d3263be97040ed5d5fa3cd29b84512509fc59c35e3e714d1ed26d4a425f99c47"],"state_sha256":"7ed38dfcdaae279aafdd463a2ea93077244165cd7bc1c1e46f8cff9fbbae02ea"}