{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:MUPN2NUNEMFQZWGWDQ5M3QUNXP","short_pith_number":"pith:MUPN2NUN","canonical_record":{"source":{"id":"2507.22669","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-07-30T13:25:36Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"eda37328629115fc2dbb0060a75a93db9041e50dea59d5a2668037e7de021aac","abstract_canon_sha256":"e5455bebf37bc68adeaa8f89209a99d933e34ed801f06343580f84f15eb6dcdd"},"schema_version":"1.0"},"canonical_sha256":"651edd368d230b0cd8d61c3acdc28dbbcd8e9f1b5bf059a8e76a14e125bf137f","source":{"kind":"arxiv","id":"2507.22669","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.22669","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"arxiv_version","alias_value":"2507.22669v1","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.22669","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"pith_short_12","alias_value":"MUPN2NUNEMFQ","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"pith_short_16","alias_value":"MUPN2NUNEMFQZWGW","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"pith_short_8","alias_value":"MUPN2NUN","created_at":"2026-07-05T11:45:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:MUPN2NUNEMFQZWGWDQ5M3QUNXP","target":"record","payload":{"canonical_record":{"source":{"id":"2507.22669","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-07-30T13:25:36Z","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"title_canon_sha256":"eda37328629115fc2dbb0060a75a93db9041e50dea59d5a2668037e7de021aac","abstract_canon_sha256":"e5455bebf37bc68adeaa8f89209a99d933e34ed801f06343580f84f15eb6dcdd"},"schema_version":"1.0"},"canonical_sha256":"651edd368d230b0cd8d61c3acdc28dbbcd8e9f1b5bf059a8e76a14e125bf137f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:45:46.623654Z","signature_b64":"04b6/nDNe/0fMgL3F4nXv8XzsB4WFoHN1bY4NuAsBd/XclmFMumf6aFU1PHVFoLHhpZIk8S+VPn8Jfczby9dDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"651edd368d230b0cd8d61c3acdc28dbbcd8e9f1b5bf059a8e76a14e125bf137f","last_reissued_at":"2026-07-05T11:45:46.623160Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:45:46.623160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2507.22669","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":"2026-07-05T11:45:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1pM5v9PhHVQR65Qpc/r43Ptlwz97fKHWzuasOwmrv83p3Ww5MPNFXEMFZ1EouZURY8EjXMTFqhp1U0/HIjalBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:46:44.685248Z"},"content_sha256":"2889fbc50aab537edf2eb4ff6baf46f098195da1c600465591f39a81c9430ab3","schema_version":"1.0","event_id":"sha256:2889fbc50aab537edf2eb4ff6baf46f098195da1c600465591f39a81c9430ab3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:MUPN2NUNEMFQZWGWDQ5M3QUNXP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"SOAP: A Python Package for Calculating the Properties of Galaxies and Halos Formed in Cosmological Simulations","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Bert Vandenbroucke, John C. Helly, Joop Schaye, Matthieu Schaller, Robert McGibbon","submitted_at":"2025-07-30T13:25:36Z","abstract_excerpt":"Modern large scale cosmological hydrodynamic simulations require robust tools capable of analysing their data outputs in a parallel and efficient manner. We introduce SOAP (Spherical Overdensity and Aperture Processor), a Python package designed to compute halo and galaxy properties from SWIFT simulations after being post-processed with a subhalo finder. SOAP takes a subhalo catalogue as input and calculates a wide array of properties for each object. SOAP offers parallel processing capabilities via mpi4py for efficient handling of large datasets, and allows for consistent property calculation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.22669","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/2507.22669/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":"2026-07-05T11:45:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O6NWMjkuIlf72D+tckvFaVhX5RofpDaSwwkV9zSauQ5VO/1Hl67g6in2bo+EVpBp0wgwNoAtjAjqUEYNcbU2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T16:46:44.685788Z"},"content_sha256":"74c52e35ebccca5006e35447b17e3caad2bfe608ede9ea09e1a00868772ee42b","schema_version":"1.0","event_id":"sha256:74c52e35ebccca5006e35447b17e3caad2bfe608ede9ea09e1a00868772ee42b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP/bundle.json","state_url":"https://pith.science/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP/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":"2026-08-10T16:46:44Z","links":{"resolver":"https://pith.science/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP","bundle":"https://pith.science/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP/bundle.json","state":"https://pith.science/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MUPN2NUNEMFQZWGWDQ5M3QUNXP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MUPN2NUNEMFQZWGWDQ5M3QUNXP","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":"e5455bebf37bc68adeaa8f89209a99d933e34ed801f06343580f84f15eb6dcdd","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-07-30T13:25:36Z","title_canon_sha256":"eda37328629115fc2dbb0060a75a93db9041e50dea59d5a2668037e7de021aac"},"schema_version":"1.0","source":{"id":"2507.22669","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.22669","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"arxiv_version","alias_value":"2507.22669v1","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.22669","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"pith_short_12","alias_value":"MUPN2NUNEMFQ","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"pith_short_16","alias_value":"MUPN2NUNEMFQZWGW","created_at":"2026-07-05T11:45:46Z"},{"alias_kind":"pith_short_8","alias_value":"MUPN2NUN","created_at":"2026-07-05T11:45:46Z"}],"graph_snapshots":[{"event_id":"sha256:74c52e35ebccca5006e35447b17e3caad2bfe608ede9ea09e1a00868772ee42b","target":"graph","created_at":"2026-07-05T11:45:46Z","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/2507.22669/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern large scale cosmological hydrodynamic simulations require robust tools capable of analysing their data outputs in a parallel and efficient manner. We introduce SOAP (Spherical Overdensity and Aperture Processor), a Python package designed to compute halo and galaxy properties from SWIFT simulations after being post-processed with a subhalo finder. SOAP takes a subhalo catalogue as input and calculates a wide array of properties for each object. SOAP offers parallel processing capabilities via mpi4py for efficient handling of large datasets, and allows for consistent property calculation","authors_text":"Bert Vandenbroucke, John C. Helly, Joop Schaye, Matthieu Schaller, Robert McGibbon","cross_cats":["astro-ph.CO","astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-07-30T13:25:36Z","title":"SOAP: A Python Package for Calculating the Properties of Galaxies and Halos Formed in Cosmological Simulations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.22669","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":"sha256:2889fbc50aab537edf2eb4ff6baf46f098195da1c600465591f39a81c9430ab3","target":"record","created_at":"2026-07-05T11:45:46Z","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":"e5455bebf37bc68adeaa8f89209a99d933e34ed801f06343580f84f15eb6dcdd","cross_cats_sorted":["astro-ph.CO","astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-07-30T13:25:36Z","title_canon_sha256":"eda37328629115fc2dbb0060a75a93db9041e50dea59d5a2668037e7de021aac"},"schema_version":"1.0","source":{"id":"2507.22669","kind":"arxiv","version":1}},"canonical_sha256":"651edd368d230b0cd8d61c3acdc28dbbcd8e9f1b5bf059a8e76a14e125bf137f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"651edd368d230b0cd8d61c3acdc28dbbcd8e9f1b5bf059a8e76a14e125bf137f","first_computed_at":"2026-07-05T11:45:46.623160Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:45:46.623160Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"04b6/nDNe/0fMgL3F4nXv8XzsB4WFoHN1bY4NuAsBd/XclmFMumf6aFU1PHVFoLHhpZIk8S+VPn8Jfczby9dDg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:45:46.623654Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.22669","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2889fbc50aab537edf2eb4ff6baf46f098195da1c600465591f39a81c9430ab3","sha256:74c52e35ebccca5006e35447b17e3caad2bfe608ede9ea09e1a00868772ee42b"],"state_sha256":"abadda2ec70217ae15540e2c6e96f1471c972c244ab705c9bc6ee324779cf0c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R35/UUWu7rr9A1kNFJ6VKpFU274lBoGdOkdCbCfiGVdivKeDPkQUhncT82SXw6PoozT7khOQV8javMKGGtFPCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T16:46:44.689326Z","bundle_sha256":"b39fce6574e1a7fc744816162c97d608e81ca0f09552c02617801b329825deb8"}}