{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:Z57IR4WNPR2CFDNMEP46CCOKSH","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":"7ed83ace617728eaf050246c468e4727ecf7f50ed03b6fe3dc7bfafe382e56a1","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-13T13:08:52Z","title_canon_sha256":"0380139b8b7f49005319c6ba19b5430636f233da4f43c416f71121f59345c50a"},"schema_version":"1.0","source":{"id":"2608.13206","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.13206","created_at":"2026-08-14T01:00:39Z"},{"alias_kind":"arxiv_version","alias_value":"2608.13206v1","created_at":"2026-08-14T01:00:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.13206","created_at":"2026-08-14T01:00:39Z"},{"alias_kind":"pith_short_12","alias_value":"Z57IR4WNPR2C","created_at":"2026-08-14T01:00:39Z"},{"alias_kind":"pith_short_16","alias_value":"Z57IR4WNPR2CFDNM","created_at":"2026-08-14T01:00:39Z"},{"alias_kind":"pith_short_8","alias_value":"Z57IR4WN","created_at":"2026-08-14T01:00:39Z"}],"graph_snapshots":[{"event_id":"sha256:64f720afb28651167fed14b82e639254258a2f172c683187dc06dfe80fef3c55","target":"graph","created_at":"2026-08-14T01:00:39Z","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/2608.13206/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop an efficient three-dimensional numerical-relativity framework for primordial black-hole (PBH) formation from superhorizon curvature perturbations in a radiation-dominated Universe. We implement flux-conservative relativistic hydrodynamics in the adaptive-mesh-refinement code \\textsc{GRChombo} and introduce a cosmologically scaled Gamma-driver that allows the cosmic-time step to grow in proportion to the scale factor. For a representative long-term simulation, the scaled driver preserves the apparent-horizon mass evolution and constraint behavior while reducing the number of coarse-l","authors_text":"Chul-Moon Yoo, Rong-Gen Cai, Shao-Jiang Wang, Zhuan Ning","cross_cats":["astro-ph.CO","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-13T13:08:52Z","title":"Long-term 3+1 simulations of primordial black hole formation during radiation domination"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.13206","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":"sha256:683a1b52d05372c1b7841d7e58f8c04ed630607d80e9046ebf8393fdcedcf807","target":"record","created_at":"2026-08-14T01:00:39Z","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":"7ed83ace617728eaf050246c468e4727ecf7f50ed03b6fe3dc7bfafe382e56a1","cross_cats_sorted":["astro-ph.CO","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2026-08-13T13:08:52Z","title_canon_sha256":"0380139b8b7f49005319c6ba19b5430636f233da4f43c416f71121f59345c50a"},"schema_version":"1.0","source":{"id":"2608.13206","kind":"arxiv","version":1}},"canonical_sha256":"cf7e88f2cd7c74228dac23f9e109ca91ebedd7b7d247d254dcf6d3af021e676b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cf7e88f2cd7c74228dac23f9e109ca91ebedd7b7d247d254dcf6d3af021e676b","first_computed_at":"2026-08-14T01:00:39.920696Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-14T01:00:39.920696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ViOq9rVZTFRW19y5x7jBE38amryjDadx6LAiSYPHWjyggxQ/D8L9W1/ZUsdtkaF5IMBlQz8Rt5hSEKmY16jpCw==","signature_status":"signed_v1","signed_at":"2026-08-14T01:00:39.922652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.13206","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:683a1b52d05372c1b7841d7e58f8c04ed630607d80e9046ebf8393fdcedcf807","sha256:64f720afb28651167fed14b82e639254258a2f172c683187dc06dfe80fef3c55"],"state_sha256":"1b0a678b3e81ff5c5a31cc272cdcd465f8af59b6e399a961b985a954922971d2"}