{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:D5N5DFBVUCB4XAM3ADWAUZRY4X","short_pith_number":"pith:D5N5DFBV","canonical_record":{"source":{"id":"2306.03144","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-06-05T18:00:10Z","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"title_canon_sha256":"4cbbfa8604a8ed26cfc8281ee4e70b6854a2ec93844f699f22e656677ae988fa","abstract_canon_sha256":"68a42146231c7a84b733dd8d75b1aa7b7a4ef70e95817c7273a452e6d7dd6177"},"schema_version":"1.0"},"canonical_sha256":"1f5bd19435a083cb819b00ec0a6638e5f91e6ea2f0c7d5aa465328d9fc567424","source":{"kind":"arxiv","id":"2306.03144","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.03144","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"2306.03144v2","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.03144","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"D5N5DFBVUCB4","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"pith_short_16","alias_value":"D5N5DFBVUCB4XAM3","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"pith_short_8","alias_value":"D5N5DFBV","created_at":"2026-07-05T06:57:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:D5N5DFBVUCB4XAM3ADWAUZRY4X","target":"record","payload":{"canonical_record":{"source":{"id":"2306.03144","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-06-05T18:00:10Z","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"title_canon_sha256":"4cbbfa8604a8ed26cfc8281ee4e70b6854a2ec93844f699f22e656677ae988fa","abstract_canon_sha256":"68a42146231c7a84b733dd8d75b1aa7b7a4ef70e95817c7273a452e6d7dd6177"},"schema_version":"1.0"},"canonical_sha256":"1f5bd19435a083cb819b00ec0a6638e5f91e6ea2f0c7d5aa465328d9fc567424","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:57:08.224988Z","signature_b64":"bKf5lcD+TpA0vn6ygJoS3sK/Fd/324zAwShYNLy0pFRQNWDZUmzZSdPekIgzfh7OdZIMeAUaETLdLGlDVxjwBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f5bd19435a083cb819b00ec0a6638e5f91e6ea2f0c7d5aa465328d9fc567424","last_reissued_at":"2026-07-05T06:57:08.224528Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:57:08.224528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2306.03144","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":"2026-07-05T06:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p5B6oUoFzwtZhW9hQqZHnL5WaA6yjTU1sJH8afhe/qNtZfgOUvceSuFTs2rR4bwYohOlkCVM6yRh6hFusQv0BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T18:01:09.771441Z"},"content_sha256":"284d2b9fa47e400fc8dcb25a98a4d51f6cef21b95549c92d609d8657be223693","schema_version":"1.0","event_id":"sha256:284d2b9fa47e400fc8dcb25a98a4d51f6cef21b95549c92d609d8657be223693"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:D5N5DFBVUCB4XAM3ADWAUZRY4X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MF-Box: Multi-fidelity and multi-scale emulation for the matter power spectrum","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","physics.data-an"],"primary_cat":"astro-ph.CO","authors_text":"Christian R. Shelton, Martin A. Fernandez, Ming-Feng Ho, Simeon Bird","submitted_at":"2023-06-05T18:00:10Z","abstract_excerpt":"We introduce MF-Box, an extended version of MFEmulator, designed as a fast surrogate for power spectra, trained using N-body simulation suites from various box sizes and particle loads. To demonstrate MF-Box's effectiveness, we design simulation suites that include low-fidelity suites (L1 and L2) at $256 \\,\\mathrm{Mpc}/h$ and $100 \\,\\mathrm{Mpc}/h$, each with $128^3$ particles, and a high-fidelity suite (HF) with $512^3$ particles at $256 \\,\\mathrm{Mpc}/h$, representing a higher particle load compared to the low-fidelity suites. MF-Box acts as a probabilistic resolution correction function, le"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.03144","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/2306.03144/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":"2026-07-05T06:57:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fw00VcJMCmbumfLaRoY1h1oJu/EmbzgosC42jXwcjKTQtY00q7f9pLgkgOrUdAMHHVPm8BTrdHCS+R3QZqc8AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T18:01:09.774190Z"},"content_sha256":"08e5a87dff10ca9c623cf51890dd2ee3c8a90848a9dc8c782ef0d2482ca6e210","schema_version":"1.0","event_id":"sha256:08e5a87dff10ca9c623cf51890dd2ee3c8a90848a9dc8c782ef0d2482ca6e210"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X/bundle.json","state_url":"https://pith.science/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X/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":"2026-08-11T18:01:09Z","links":{"resolver":"https://pith.science/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X","bundle":"https://pith.science/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X/bundle.json","state":"https://pith.science/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D5N5DFBVUCB4XAM3ADWAUZRY4X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:D5N5DFBVUCB4XAM3ADWAUZRY4X","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":"68a42146231c7a84b733dd8d75b1aa7b7a4ef70e95817c7273a452e6d7dd6177","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-06-05T18:00:10Z","title_canon_sha256":"4cbbfa8604a8ed26cfc8281ee4e70b6854a2ec93844f699f22e656677ae988fa"},"schema_version":"1.0","source":{"id":"2306.03144","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2306.03144","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"arxiv_version","alias_value":"2306.03144v2","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2306.03144","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"pith_short_12","alias_value":"D5N5DFBVUCB4","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"pith_short_16","alias_value":"D5N5DFBVUCB4XAM3","created_at":"2026-07-05T06:57:08Z"},{"alias_kind":"pith_short_8","alias_value":"D5N5DFBV","created_at":"2026-07-05T06:57:08Z"}],"graph_snapshots":[{"event_id":"sha256:08e5a87dff10ca9c623cf51890dd2ee3c8a90848a9dc8c782ef0d2482ca6e210","target":"graph","created_at":"2026-07-05T06:57:08Z","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/2306.03144/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We introduce MF-Box, an extended version of MFEmulator, designed as a fast surrogate for power spectra, trained using N-body simulation suites from various box sizes and particle loads. To demonstrate MF-Box's effectiveness, we design simulation suites that include low-fidelity suites (L1 and L2) at $256 \\,\\mathrm{Mpc}/h$ and $100 \\,\\mathrm{Mpc}/h$, each with $128^3$ particles, and a high-fidelity suite (HF) with $512^3$ particles at $256 \\,\\mathrm{Mpc}/h$, representing a higher particle load compared to the low-fidelity suites. MF-Box acts as a probabilistic resolution correction function, le","authors_text":"Christian R. Shelton, Martin A. Fernandez, Ming-Feng Ho, Simeon Bird","cross_cats":["astro-ph.IM","physics.data-an"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-06-05T18:00:10Z","title":"MF-Box: Multi-fidelity and multi-scale emulation for the matter power spectrum"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.03144","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":"sha256:284d2b9fa47e400fc8dcb25a98a4d51f6cef21b95549c92d609d8657be223693","target":"record","created_at":"2026-07-05T06:57:08Z","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":"68a42146231c7a84b733dd8d75b1aa7b7a4ef70e95817c7273a452e6d7dd6177","cross_cats_sorted":["astro-ph.IM","physics.data-an"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2023-06-05T18:00:10Z","title_canon_sha256":"4cbbfa8604a8ed26cfc8281ee4e70b6854a2ec93844f699f22e656677ae988fa"},"schema_version":"1.0","source":{"id":"2306.03144","kind":"arxiv","version":2}},"canonical_sha256":"1f5bd19435a083cb819b00ec0a6638e5f91e6ea2f0c7d5aa465328d9fc567424","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f5bd19435a083cb819b00ec0a6638e5f91e6ea2f0c7d5aa465328d9fc567424","first_computed_at":"2026-07-05T06:57:08.224528Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:57:08.224528Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bKf5lcD+TpA0vn6ygJoS3sK/Fd/324zAwShYNLy0pFRQNWDZUmzZSdPekIgzfh7OdZIMeAUaETLdLGlDVxjwBw==","signature_status":"signed_v1","signed_at":"2026-07-05T06:57:08.224988Z","signed_message":"canonical_sha256_bytes"},"source_id":"2306.03144","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:284d2b9fa47e400fc8dcb25a98a4d51f6cef21b95549c92d609d8657be223693","sha256:08e5a87dff10ca9c623cf51890dd2ee3c8a90848a9dc8c782ef0d2482ca6e210"],"state_sha256":"017ab40bc6126c0b1e8dabb0447b9c38333818cf284ca173431c644bf497df57"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tZODczCPdxu30xNAKbZnkFe3s6p/bWhE1Mn2kg1WAvPuLJJ/L7xmXHG55ibX+Ovnsg7RFyoBMyLQdu495qnYBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T18:01:09.788070Z","bundle_sha256":"6a8492af90a4cd180c4b009b813fb63f0993faac64a81ae86572a650d5eb2d7e"}}