{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:2KBR6TCXAMNXLHWWBQJ4XN6N4V","short_pith_number":"pith:2KBR6TCX","canonical_record":{"source":{"id":"2405.05840","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-09T15:21:22Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"ce5079b778e981243c47e7921eb2455f9f72387a24e1af8a1c1643d8db361d67","abstract_canon_sha256":"dd5dc4f37fe46612b97fca123275027b8df9a9c24a803a94154e62c63cfee34e"},"schema_version":"1.0"},"canonical_sha256":"d2831f4c57031b759ed60c13cbb7cde54400895b970a536cdc4a9eb94234de06","source":{"kind":"arxiv","id":"2405.05840","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.05840","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"arxiv_version","alias_value":"2405.05840v2","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.05840","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"pith_short_12","alias_value":"2KBR6TCXAMNX","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"pith_short_16","alias_value":"2KBR6TCXAMNXLHWW","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"pith_short_8","alias_value":"2KBR6TCX","created_at":"2026-07-05T09:45:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:2KBR6TCXAMNXLHWWBQJ4XN6N4V","target":"record","payload":{"canonical_record":{"source":{"id":"2405.05840","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-09T15:21:22Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"ce5079b778e981243c47e7921eb2455f9f72387a24e1af8a1c1643d8db361d67","abstract_canon_sha256":"dd5dc4f37fe46612b97fca123275027b8df9a9c24a803a94154e62c63cfee34e"},"schema_version":"1.0"},"canonical_sha256":"d2831f4c57031b759ed60c13cbb7cde54400895b970a536cdc4a9eb94234de06","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:45:09.989730Z","signature_b64":"VMGQMb/XK7Z3NJrXaJzh5NRkMi//VpOEJay3BHNn49In8n3FhyY14a6akeOMEgcxyjZZCUflVqBkFXFQmK9fAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2831f4c57031b759ed60c13cbb7cde54400895b970a536cdc4a9eb94234de06","last_reissued_at":"2026-07-05T09:45:09.989233Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:45:09.989233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.05840","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:45:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0J2OIuLHVRCeCBtDAt6imhCbkWoEHE8+3e41P7GGwIGDKPof6bVB3DdefUJaK3AGHGdb9MwX0pFhLqbWaCJVCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T05:02:13.117327Z"},"content_sha256":"7520790b5daf63f81eb85f9c9031c170f194f7ec95e77102f9c7b49ec7c0a38d","schema_version":"1.0","event_id":"sha256:7520790b5daf63f81eb85f9c9031c170f194f7ec95e77102f9c7b49ec7c0a38d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:2KBR6TCXAMNXLHWWBQJ4XN6N4V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"FREmu: Power Spectrum Emulator for $f(R)$ Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.CO","authors_text":"Jiachen Bai, Junqing Xia","submitted_at":"2024-05-09T15:21:22Z","abstract_excerpt":"To investigate gravity in the non-linear regime of cosmic structure using measurements from Stage-IV surveys, it is imperative to accurately compute large-scale structure observables, such as non-linear matter power spectra, for gravity models that extend beyond general relativity. However, the theoretical predictions of non-linear observables are typically derived from N-body simulations, which demand substantial computational resources. In this study, we introduce a novel public emulator, termed FREmu, designed to provide rapid and precise forecasts of non-linear power spectra specifically f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.05840","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2405.05840/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T09:45:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9WKQ45hzyUiGiDVMHmO9ozDhPmAoE3qvDxHv4sXagRAmJo8sy7744C6MF3gINN8zLsSISHG1f7QlZ3K97EYuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T05:02:13.117832Z"},"content_sha256":"11cd1a9cdd07b5a1d825b6d51320fe0aaaff5b981587352e8a116c4a5fd10818","schema_version":"1.0","event_id":"sha256:11cd1a9cdd07b5a1d825b6d51320fe0aaaff5b981587352e8a116c4a5fd10818"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V/bundle.json","state_url":"https://pith.science/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-17T05:02:13Z","links":{"resolver":"https://pith.science/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V","bundle":"https://pith.science/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V/bundle.json","state":"https://pith.science/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2KBR6TCXAMNXLHWWBQJ4XN6N4V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:2KBR6TCXAMNXLHWWBQJ4XN6N4V","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":"dd5dc4f37fe46612b97fca123275027b8df9a9c24a803a94154e62c63cfee34e","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-09T15:21:22Z","title_canon_sha256":"ce5079b778e981243c47e7921eb2455f9f72387a24e1af8a1c1643d8db361d67"},"schema_version":"1.0","source":{"id":"2405.05840","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.05840","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"arxiv_version","alias_value":"2405.05840v2","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.05840","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"pith_short_12","alias_value":"2KBR6TCXAMNX","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"pith_short_16","alias_value":"2KBR6TCXAMNXLHWW","created_at":"2026-07-05T09:45:09Z"},{"alias_kind":"pith_short_8","alias_value":"2KBR6TCX","created_at":"2026-07-05T09:45:09Z"}],"graph_snapshots":[{"event_id":"sha256:11cd1a9cdd07b5a1d825b6d51320fe0aaaff5b981587352e8a116c4a5fd10818","target":"graph","created_at":"2026-07-05T09:45:09Z","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/2405.05840/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"To investigate gravity in the non-linear regime of cosmic structure using measurements from Stage-IV surveys, it is imperative to accurately compute large-scale structure observables, such as non-linear matter power spectra, for gravity models that extend beyond general relativity. However, the theoretical predictions of non-linear observables are typically derived from N-body simulations, which demand substantial computational resources. In this study, we introduce a novel public emulator, termed FREmu, designed to provide rapid and precise forecasts of non-linear power spectra specifically f","authors_text":"Jiachen Bai, Junqing Xia","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-09T15:21:22Z","title":"FREmu: Power Spectrum Emulator for $f(R)$ Gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.05840","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":"sha256:7520790b5daf63f81eb85f9c9031c170f194f7ec95e77102f9c7b49ec7c0a38d","target":"record","created_at":"2026-07-05T09:45:09Z","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":"dd5dc4f37fe46612b97fca123275027b8df9a9c24a803a94154e62c63cfee34e","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2024-05-09T15:21:22Z","title_canon_sha256":"ce5079b778e981243c47e7921eb2455f9f72387a24e1af8a1c1643d8db361d67"},"schema_version":"1.0","source":{"id":"2405.05840","kind":"arxiv","version":2}},"canonical_sha256":"d2831f4c57031b759ed60c13cbb7cde54400895b970a536cdc4a9eb94234de06","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2831f4c57031b759ed60c13cbb7cde54400895b970a536cdc4a9eb94234de06","first_computed_at":"2026-07-05T09:45:09.989233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:45:09.989233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VMGQMb/XK7Z3NJrXaJzh5NRkMi//VpOEJay3BHNn49In8n3FhyY14a6akeOMEgcxyjZZCUflVqBkFXFQmK9fAw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:45:09.989730Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.05840","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7520790b5daf63f81eb85f9c9031c170f194f7ec95e77102f9c7b49ec7c0a38d","sha256:11cd1a9cdd07b5a1d825b6d51320fe0aaaff5b981587352e8a116c4a5fd10818"],"state_sha256":"86342584fbfaae398b4b26b811a3e1360741790d545bfc22ac7dc08fd242dda5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bsQ0fYoyhafQBXKuxz99ii3IWAl9nmBeeh64RmxPy2LagMZ/s9xAeeaNi4baBCHazyjbIUAZvPI6w8OyuJnPDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T05:02:13.121369Z","bundle_sha256":"76705c9af081b8cb1d8764d0391e6c907ed9e8734ba32b3e2fd67cc5465a7932"}}