{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:K4NQMSU53PVSJSPSMNLWLPZVNU","short_pith_number":"pith:K4NQMSU5","canonical_record":{"source":{"id":"1401.5489","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-21T21:14:22Z","cross_cats_sorted":[],"title_canon_sha256":"457d1508d0c9ff54a7422447732814946a34219fc7a1e372c407231d24a69afb","abstract_canon_sha256":"4de99119c2c6ffe4d6a00a2513ffe191db19104edf8213385c02025a04d02a2e"},"schema_version":"1.0"},"canonical_sha256":"571b064a9ddbeb24c9f2635765bf356d259c8479a5c9faf5b0e8fd66fad344bc","source":{"kind":"arxiv","id":"1401.5489","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.5489","created_at":"2026-05-18T01:45:18Z"},{"alias_kind":"arxiv_version","alias_value":"1401.5489v1","created_at":"2026-05-18T01:45:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.5489","created_at":"2026-05-18T01:45:18Z"},{"alias_kind":"pith_short_12","alias_value":"K4NQMSU53PVS","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K4NQMSU53PVSJSPS","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K4NQMSU5","created_at":"2026-05-18T12:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:K4NQMSU53PVSJSPSMNLWLPZVNU","target":"record","payload":{"canonical_record":{"source":{"id":"1401.5489","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-21T21:14:22Z","cross_cats_sorted":[],"title_canon_sha256":"457d1508d0c9ff54a7422447732814946a34219fc7a1e372c407231d24a69afb","abstract_canon_sha256":"4de99119c2c6ffe4d6a00a2513ffe191db19104edf8213385c02025a04d02a2e"},"schema_version":"1.0"},"canonical_sha256":"571b064a9ddbeb24c9f2635765bf356d259c8479a5c9faf5b0e8fd66fad344bc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:45:18.216934Z","signature_b64":"CilKZ8yEoQGXNfrF8ggeLJgvTXlmY6eWMxvMp5tomcG+86drE1mQgLPxGugB4yzOjZxPDpIHwbe8VONMckUCBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"571b064a9ddbeb24c9f2635765bf356d259c8479a5c9faf5b0e8fd66fad344bc","last_reissued_at":"2026-05-18T01:45:18.216372Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:45:18.216372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1401.5489","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":"2026-05-18T01:45:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fDWW3HoCr6q7ezl4UclE1ZzjMLGjv+OUM32unbmYdIR48Ubf9ldfmcHgFp0eAF8UCZCdksbCyMohKLmIZTqwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:51:45.477901Z"},"content_sha256":"8389d265954b14fcac1ff8a7ed246fbb211afd86cf10739191733fa6ef32e220","schema_version":"1.0","event_id":"sha256:8389d265954b14fcac1ff8a7ed246fbb211afd86cf10739191733fa6ef32e220"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:K4NQMSU53PVSJSPSMNLWLPZVNU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Systematic Problems With Using Dark Matter Simulations to Model Stellar Halos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Eric F. Bell, Greg S. Stinson, H. M. P. Couchman, James Wadsley, Jeremy Bailin, Monica Valluri, Victor P. Debattista","submitted_at":"2014-01-21T21:14:22Z","abstract_excerpt":"The limits of available computing power have forced models for the structure of stellar halos to adopt one or both of the following simplifying assumptions: (1) stellar mass can be \"painted\" onto dark matter particles in progenitor satellites; (2) pure dark matter simulations that do not form a luminous galaxy can be used. We estimate the magnitude of the systematic errors introduced by these assumptions using a controlled set of stellar halo models where we independently vary whether we look at star particles or painted dark matter particles, and whether we use a simulation in which a baryoni"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.5489","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":"2026-05-18T01:45:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p/oLC3yB7Sk6uJnvd14qJromFSBsuOJblMcX2j63w2WOG3JH4DD/58hiuEw5lszTpfvs03rG44bzaGOLZgr1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T08:51:45.478246Z"},"content_sha256":"6e176dc1d6a6dda10705d1daf5ae72eee50f997e628fed8c78f334cfcf0263c7","schema_version":"1.0","event_id":"sha256:6e176dc1d6a6dda10705d1daf5ae72eee50f997e628fed8c78f334cfcf0263c7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K4NQMSU53PVSJSPSMNLWLPZVNU/bundle.json","state_url":"https://pith.science/pith/K4NQMSU53PVSJSPSMNLWLPZVNU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K4NQMSU53PVSJSPSMNLWLPZVNU/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":"2026-06-03T08:51:45Z","links":{"resolver":"https://pith.science/pith/K4NQMSU53PVSJSPSMNLWLPZVNU","bundle":"https://pith.science/pith/K4NQMSU53PVSJSPSMNLWLPZVNU/bundle.json","state":"https://pith.science/pith/K4NQMSU53PVSJSPSMNLWLPZVNU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K4NQMSU53PVSJSPSMNLWLPZVNU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:K4NQMSU53PVSJSPSMNLWLPZVNU","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":"4de99119c2c6ffe4d6a00a2513ffe191db19104edf8213385c02025a04d02a2e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-21T21:14:22Z","title_canon_sha256":"457d1508d0c9ff54a7422447732814946a34219fc7a1e372c407231d24a69afb"},"schema_version":"1.0","source":{"id":"1401.5489","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1401.5489","created_at":"2026-05-18T01:45:18Z"},{"alias_kind":"arxiv_version","alias_value":"1401.5489v1","created_at":"2026-05-18T01:45:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.5489","created_at":"2026-05-18T01:45:18Z"},{"alias_kind":"pith_short_12","alias_value":"K4NQMSU53PVS","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"K4NQMSU53PVSJSPS","created_at":"2026-05-18T12:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"K4NQMSU5","created_at":"2026-05-18T12:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:6e176dc1d6a6dda10705d1daf5ae72eee50f997e628fed8c78f334cfcf0263c7","target":"graph","created_at":"2026-05-18T01:45:18Z","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":"The limits of available computing power have forced models for the structure of stellar halos to adopt one or both of the following simplifying assumptions: (1) stellar mass can be \"painted\" onto dark matter particles in progenitor satellites; (2) pure dark matter simulations that do not form a luminous galaxy can be used. We estimate the magnitude of the systematic errors introduced by these assumptions using a controlled set of stellar halo models where we independently vary whether we look at star particles or painted dark matter particles, and whether we use a simulation in which a baryoni","authors_text":"Eric F. Bell, Greg S. Stinson, H. M. P. Couchman, James Wadsley, Jeremy Bailin, Monica Valluri, Victor P. Debattista","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-21T21:14:22Z","title":"Systematic Problems With Using Dark Matter Simulations to Model Stellar Halos"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.5489","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":"sha256:8389d265954b14fcac1ff8a7ed246fbb211afd86cf10739191733fa6ef32e220","target":"record","created_at":"2026-05-18T01:45:18Z","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":"4de99119c2c6ffe4d6a00a2513ffe191db19104edf8213385c02025a04d02a2e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-01-21T21:14:22Z","title_canon_sha256":"457d1508d0c9ff54a7422447732814946a34219fc7a1e372c407231d24a69afb"},"schema_version":"1.0","source":{"id":"1401.5489","kind":"arxiv","version":1}},"canonical_sha256":"571b064a9ddbeb24c9f2635765bf356d259c8479a5c9faf5b0e8fd66fad344bc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"571b064a9ddbeb24c9f2635765bf356d259c8479a5c9faf5b0e8fd66fad344bc","first_computed_at":"2026-05-18T01:45:18.216372Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:45:18.216372Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CilKZ8yEoQGXNfrF8ggeLJgvTXlmY6eWMxvMp5tomcG+86drE1mQgLPxGugB4yzOjZxPDpIHwbe8VONMckUCBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:45:18.216934Z","signed_message":"canonical_sha256_bytes"},"source_id":"1401.5489","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8389d265954b14fcac1ff8a7ed246fbb211afd86cf10739191733fa6ef32e220","sha256:6e176dc1d6a6dda10705d1daf5ae72eee50f997e628fed8c78f334cfcf0263c7"],"state_sha256":"ff1a699d4a90cc116fc127f4599362f48268b714418210d987a8323ffa01d04b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zB0iv5Nt0SttQrw0xTcGU6BJaDVlND+eqTOZQRWASC21kWl6Yb921c0ygbZSwTzpKZXJD9OySNOCl83JtbpRDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T08:51:45.480386Z","bundle_sha256":"047f57673d2820cd455b51cd95b8096ebeb5e43468708bc4cc7ebf32a827e805"}}