{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:FWKQ76ORYUTM5KXKYQ4JKOIEOV","short_pith_number":"pith:FWKQ76OR","canonical_record":{"source":{"id":"0904.0083","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-01T07:50:26Z","cross_cats_sorted":[],"title_canon_sha256":"634009beb678a73f66a4d2f2e516524fa8d029b766740b312802c9f9850e32cb","abstract_canon_sha256":"8d1737c3d8805b182350ded9a0ab7f923cbf2e0cfcaf71c018f550794f809e89"},"schema_version":"1.0"},"canonical_sha256":"2d950ff9d1c526ceaaeac438953904754e3769aad5e107f565912cf4ded9ed02","source":{"kind":"arxiv","id":"0904.0083","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.0083","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"arxiv_version","alias_value":"0904.0083v1","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.0083","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"pith_short_12","alias_value":"FWKQ76ORYUTM","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"FWKQ76ORYUTM5KXK","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"FWKQ76OR","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:FWKQ76ORYUTM5KXKYQ4JKOIEOV","target":"record","payload":{"canonical_record":{"source":{"id":"0904.0083","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-01T07:50:26Z","cross_cats_sorted":[],"title_canon_sha256":"634009beb678a73f66a4d2f2e516524fa8d029b766740b312802c9f9850e32cb","abstract_canon_sha256":"8d1737c3d8805b182350ded9a0ab7f923cbf2e0cfcaf71c018f550794f809e89"},"schema_version":"1.0"},"canonical_sha256":"2d950ff9d1c526ceaaeac438953904754e3769aad5e107f565912cf4ded9ed02","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:15.460099Z","signature_b64":"BVITuE0KI1DnyTxshYEJGgOm0Yan4Cpl4imZs7XItO3K4rzeTeTE2/EZktl4TwWugSS7VaVVif6ex7J0nI+dDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d950ff9d1c526ceaaeac438953904754e3769aad5e107f565912cf4ded9ed02","last_reissued_at":"2026-05-18T04:29:15.459457Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:15.459457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.0083","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":"2026-05-18T04:29:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I5d6n/SPiRFRGb1teydYNGiD+ZbSgExyZdiMyZnOWnRIL1qm8kUy1942sF+0WNb+NBH5sYEH1hebP8YuPAJRCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:24:04.685497Z"},"content_sha256":"17194fa407fc7febfb430c8380729ef3e56cf48445d6a5c984b438989fe9b017","schema_version":"1.0","event_id":"sha256:17194fa407fc7febfb430c8380729ef3e56cf48445d6a5c984b438989fe9b017"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:FWKQ76ORYUTM5KXKYQ4JKOIEOV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the starting redshift for cosmological simulations: Focusing on halo properties","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"AIP), Alexander Knebe (UAM, Christian Wagner (AIP), Fabian Krause (AIP), Steffen Knollmann (UAM, Tobias Diekershoff (AIP)","submitted_at":"2009-04-01T07:50:26Z","abstract_excerpt":"We systematically study the effects of varying the starting redshift z_i for cosmological simulations in the highly non-linear regime. Our primary focus lies with the (individual) properties of dark matter halos -- namely the mass, spin, triaxiality, and concentration -- where we find that even substantial variations in z_i leave only a small imprint, at least for the probed mass range M \\in [10^{10}, 10^{13}] Msun/h and when investigated at redshift z=0. We further compare simulations started by using the standard Zel'dovich approximation to runs based upon initial conditions produced with se"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.0083","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":""},"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":"2026-05-18T04:29:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bBCnWgnVJOEqoSSrnSKS+RzkUHBQh0nfRsaK/ybV0jejOAtattzNZFxx6JL+eJAr4XiP2XwO30Wd2O5BcmmQCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T19:24:04.686402Z"},"content_sha256":"545b713eff6e5e3c11d7966d1323b69ebc92134cc344665a5cfb93a56112ad97","schema_version":"1.0","event_id":"sha256:545b713eff6e5e3c11d7966d1323b69ebc92134cc344665a5cfb93a56112ad97"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV/bundle.json","state_url":"https://pith.science/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV/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":"2026-05-31T19:24:04Z","links":{"resolver":"https://pith.science/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV","bundle":"https://pith.science/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV/bundle.json","state":"https://pith.science/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FWKQ76ORYUTM5KXKYQ4JKOIEOV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:FWKQ76ORYUTM5KXKYQ4JKOIEOV","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":"8d1737c3d8805b182350ded9a0ab7f923cbf2e0cfcaf71c018f550794f809e89","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-01T07:50:26Z","title_canon_sha256":"634009beb678a73f66a4d2f2e516524fa8d029b766740b312802c9f9850e32cb"},"schema_version":"1.0","source":{"id":"0904.0083","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.0083","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"arxiv_version","alias_value":"0904.0083v1","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.0083","created_at":"2026-05-18T04:29:15Z"},{"alias_kind":"pith_short_12","alias_value":"FWKQ76ORYUTM","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"FWKQ76ORYUTM5KXK","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"FWKQ76OR","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:545b713eff6e5e3c11d7966d1323b69ebc92134cc344665a5cfb93a56112ad97","target":"graph","created_at":"2026-05-18T04:29:15Z","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"},"paper":{"abstract_excerpt":"We systematically study the effects of varying the starting redshift z_i for cosmological simulations in the highly non-linear regime. Our primary focus lies with the (individual) properties of dark matter halos -- namely the mass, spin, triaxiality, and concentration -- where we find that even substantial variations in z_i leave only a small imprint, at least for the probed mass range M \\in [10^{10}, 10^{13}] Msun/h and when investigated at redshift z=0. We further compare simulations started by using the standard Zel'dovich approximation to runs based upon initial conditions produced with se","authors_text":"AIP), Alexander Knebe (UAM, Christian Wagner (AIP), Fabian Krause (AIP), Steffen Knollmann (UAM, Tobias Diekershoff (AIP)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-01T07:50:26Z","title":"On the starting redshift for cosmological simulations: Focusing on halo properties"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.0083","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":"sha256:17194fa407fc7febfb430c8380729ef3e56cf48445d6a5c984b438989fe9b017","target":"record","created_at":"2026-05-18T04:29:15Z","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":"8d1737c3d8805b182350ded9a0ab7f923cbf2e0cfcaf71c018f550794f809e89","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-04-01T07:50:26Z","title_canon_sha256":"634009beb678a73f66a4d2f2e516524fa8d029b766740b312802c9f9850e32cb"},"schema_version":"1.0","source":{"id":"0904.0083","kind":"arxiv","version":1}},"canonical_sha256":"2d950ff9d1c526ceaaeac438953904754e3769aad5e107f565912cf4ded9ed02","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d950ff9d1c526ceaaeac438953904754e3769aad5e107f565912cf4ded9ed02","first_computed_at":"2026-05-18T04:29:15.459457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:15.459457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BVITuE0KI1DnyTxshYEJGgOm0Yan4Cpl4imZs7XItO3K4rzeTeTE2/EZktl4TwWugSS7VaVVif6ex7J0nI+dDA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:15.460099Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.0083","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17194fa407fc7febfb430c8380729ef3e56cf48445d6a5c984b438989fe9b017","sha256:545b713eff6e5e3c11d7966d1323b69ebc92134cc344665a5cfb93a56112ad97"],"state_sha256":"4df034c660f80da5f8aa55c618f90cf8a99aee8e65d0ffd9a92033c51c3fccd4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lrWj4xCYfBXDq6y3ZLYE4tq/L+L4AHXDgOJ413PdilaGQn7Bu6RLM+1KaHfsZDlE7qqV+dZbVeR9LqST0CTvAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T19:24:04.691638Z","bundle_sha256":"914a72e2c158aeeefff9618fed891310dffde465c4408c1317efbb1cfa42616e"}}