{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:A2ZF7TYGSCGPOEWAPUXR6GCMKU","short_pith_number":"pith:A2ZF7TYG","canonical_record":{"source":{"id":"2406.10466","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-06-15T02:07:33Z","cross_cats_sorted":[],"title_canon_sha256":"39da2785a6ef3325c97e1f5fc7fc419a9f2b5d2c7e8dae7bbebcd81a2114d521","abstract_canon_sha256":"0e77ea9a90be821e5579b8284da2aaa0b14ef9faab91cef63d507e91b347ddfc"},"schema_version":"1.0"},"canonical_sha256":"06b25fcf06908cf712c07d2f1f184c55248ed42be94a5fb9cf7df4f82bd8af46","source":{"kind":"arxiv","id":"2406.10466","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.10466","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"arxiv_version","alias_value":"2406.10466v1","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.10466","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"pith_short_12","alias_value":"A2ZF7TYGSCGP","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"pith_short_16","alias_value":"A2ZF7TYGSCGPOEWA","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"pith_short_8","alias_value":"A2ZF7TYG","created_at":"2026-07-05T08:32:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:A2ZF7TYGSCGPOEWAPUXR6GCMKU","target":"record","payload":{"canonical_record":{"source":{"id":"2406.10466","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-06-15T02:07:33Z","cross_cats_sorted":[],"title_canon_sha256":"39da2785a6ef3325c97e1f5fc7fc419a9f2b5d2c7e8dae7bbebcd81a2114d521","abstract_canon_sha256":"0e77ea9a90be821e5579b8284da2aaa0b14ef9faab91cef63d507e91b347ddfc"},"schema_version":"1.0"},"canonical_sha256":"06b25fcf06908cf712c07d2f1f184c55248ed42be94a5fb9cf7df4f82bd8af46","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:32:17.147721Z","signature_b64":"CAztwsnY5Q/DEMVuMJfQ0PR7njl6fyjeO0MJipV53St6vzTV3KSHBYgQfe3fzAEq2THIDp1k23nyYPfFSOYYAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"06b25fcf06908cf712c07d2f1f184c55248ed42be94a5fb9cf7df4f82bd8af46","last_reissued_at":"2026-07-05T08:32:17.147233Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:32:17.147233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2406.10466","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T08:32:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hAU9K49uneMVS5lauZFWoDfWBMwBs2++XZGrAH20JDrrENmY9pll3NqZBWXnENtfhqCyG5Al7veoAwB7rY01Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:03:11.193813Z"},"content_sha256":"08737399e183e37d571936b0894db8e840cc79de69a5b5def225894bd4efd70e","schema_version":"1.0","event_id":"sha256:08737399e183e37d571936b0894db8e840cc79de69a5b5def225894bd4efd70e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:A2ZF7TYGSCGPOEWAPUXR6GCMKU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Improving the Accuracy of Halo Mass Based Statistics For Fast Approximate N-body Simulations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Hong Guo, Volker Springel, Yiheng Wu","submitted_at":"2024-06-15T02:07:33Z","abstract_excerpt":"Approximate N-body methods, such as FastPM and COLA, have been successful in modelling halo and galaxy clustering statistics, but their low resolution on small scales is a limitation for applications that require high precision. Full N-body simulations can provide better accuracy but are too computationally expensive for a quick exploration of cosmological parameters. This paper presents a method for correcting distinct haloes identified in fast N-body simulations, so that various halo statistics improve to a percent level accuracy. The scheme seeks to find empirical corrections to halo proper"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.10466","kind":"arxiv","version":1},"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/2406.10466/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":"2026-07-05T08:32:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4Ie7dsb12Q8ix31A4JKKDYALcZlBUYAw30y0F/yf3hA55QzNZcWgx4C30sqanw8IYgW5xWc8LY8+W1D6x5tqDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T23:03:11.194842Z"},"content_sha256":"b237759b1bdb42c240e9337706f5d3d592548a1af3d2a297199f1045a5630d8c","schema_version":"1.0","event_id":"sha256:b237759b1bdb42c240e9337706f5d3d592548a1af3d2a297199f1045a5630d8c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU/bundle.json","state_url":"https://pith.science/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU/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":"2026-08-07T23:03:11Z","links":{"resolver":"https://pith.science/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU","bundle":"https://pith.science/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU/bundle.json","state":"https://pith.science/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A2ZF7TYGSCGPOEWAPUXR6GCMKU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:A2ZF7TYGSCGPOEWAPUXR6GCMKU","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":"0e77ea9a90be821e5579b8284da2aaa0b14ef9faab91cef63d507e91b347ddfc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-06-15T02:07:33Z","title_canon_sha256":"39da2785a6ef3325c97e1f5fc7fc419a9f2b5d2c7e8dae7bbebcd81a2114d521"},"schema_version":"1.0","source":{"id":"2406.10466","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2406.10466","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"arxiv_version","alias_value":"2406.10466v1","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2406.10466","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"pith_short_12","alias_value":"A2ZF7TYGSCGP","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"pith_short_16","alias_value":"A2ZF7TYGSCGPOEWA","created_at":"2026-07-05T08:32:17Z"},{"alias_kind":"pith_short_8","alias_value":"A2ZF7TYG","created_at":"2026-07-05T08:32:17Z"}],"graph_snapshots":[{"event_id":"sha256:b237759b1bdb42c240e9337706f5d3d592548a1af3d2a297199f1045a5630d8c","target":"graph","created_at":"2026-07-05T08:32:17Z","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/2406.10466/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Approximate N-body methods, such as FastPM and COLA, have been successful in modelling halo and galaxy clustering statistics, but their low resolution on small scales is a limitation for applications that require high precision. Full N-body simulations can provide better accuracy but are too computationally expensive for a quick exploration of cosmological parameters. This paper presents a method for correcting distinct haloes identified in fast N-body simulations, so that various halo statistics improve to a percent level accuracy. The scheme seeks to find empirical corrections to halo proper","authors_text":"Hong Guo, Volker Springel, Yiheng Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-06-15T02:07:33Z","title":"Improving the Accuracy of Halo Mass Based Statistics For Fast Approximate N-body Simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2406.10466","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":"sha256:08737399e183e37d571936b0894db8e840cc79de69a5b5def225894bd4efd70e","target":"record","created_at":"2026-07-05T08:32:17Z","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":"0e77ea9a90be821e5579b8284da2aaa0b14ef9faab91cef63d507e91b347ddfc","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2024-06-15T02:07:33Z","title_canon_sha256":"39da2785a6ef3325c97e1f5fc7fc419a9f2b5d2c7e8dae7bbebcd81a2114d521"},"schema_version":"1.0","source":{"id":"2406.10466","kind":"arxiv","version":1}},"canonical_sha256":"06b25fcf06908cf712c07d2f1f184c55248ed42be94a5fb9cf7df4f82bd8af46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"06b25fcf06908cf712c07d2f1f184c55248ed42be94a5fb9cf7df4f82bd8af46","first_computed_at":"2026-07-05T08:32:17.147233Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:32:17.147233Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CAztwsnY5Q/DEMVuMJfQ0PR7njl6fyjeO0MJipV53St6vzTV3KSHBYgQfe3fzAEq2THIDp1k23nyYPfFSOYYAg==","signature_status":"signed_v1","signed_at":"2026-07-05T08:32:17.147721Z","signed_message":"canonical_sha256_bytes"},"source_id":"2406.10466","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08737399e183e37d571936b0894db8e840cc79de69a5b5def225894bd4efd70e","sha256:b237759b1bdb42c240e9337706f5d3d592548a1af3d2a297199f1045a5630d8c"],"state_sha256":"64a5a48cb5fc20ee906a7c4d1bb40faa6e94a0957a28f2fc33367d09a8eb5ad2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JgBYrGPV+DYyHXHF3HkcWZMORlk88yfbczqhPOJBfjnvgBUKe7qa7esxyMrW3qZyyPk6liO5VZUCmqXLm5/LAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T23:03:11.201508Z","bundle_sha256":"d0dbcec603c6a51c8182a055dcc5f2a3b1fa4babcc6c7a368f5ded19d17a2119"}}