{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:PFAJ7G3FOGKI5LWR3SMU42BZXN","short_pith_number":"pith:PFAJ7G3F","schema_version":"1.0","canonical_sha256":"79409f9b6571948eaed1dc994e6839bb4a444864af61026133aa87c7b3aa5c71","source":{"kind":"arxiv","id":"2010.15123","version":2},"attestation_state":"computed","paper":{"title":"Measuring the mass and concentration of dark matter halos from the velocity dispersion profile of their stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Abraham Loeb, Sownak Bose","submitted_at":"2020-10-28T18:00:00Z","abstract_excerpt":"We use the IllustrisTNG (TNG) cosmological, hydrodynamical simulations of galaxy formation to measure the velocity dispersion profiles of dark matter and star particles in Milky Way-mass, galaxy group, and cluster-scale dark matter halos. The mean profile calculated from both dark and luminous tracers are similar in shape, exhibiting a large degree of halo-to-halo scatter around the average profile. The so-called \"splashback\" radius demarcates the outer boundary of the halo, and manifests as a kink in the velocity dispersion profile, located on average between $\\sim 1.0-1.5r_{200m}$, where $r_"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2010.15123","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T18:00:00Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"f1d3e148d41ee0eb2dd0b6e6ec775851ecb2375f2084e21ce105a87e8f392ef0","abstract_canon_sha256":"f73767830fc2e809d22a6db6e93d232a1ba0aebafd994db1bff5acba1f23f3d8"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:41:07.054943Z","signature_b64":"2sF2sZETEXH5yM7lx/a3eg9MfbiQ3WYIKud0jDWYQG0oseGYDQjBg0ceBlDRYvExtel/KwoQSyN1TQ63LmwyBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79409f9b6571948eaed1dc994e6839bb4a444864af61026133aa87c7b3aa5c71","last_reissued_at":"2026-07-05T02:41:07.054426Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:41:07.054426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measuring the mass and concentration of dark matter halos from the velocity dispersion profile of their stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Abraham Loeb, Sownak Bose","submitted_at":"2020-10-28T18:00:00Z","abstract_excerpt":"We use the IllustrisTNG (TNG) cosmological, hydrodynamical simulations of galaxy formation to measure the velocity dispersion profiles of dark matter and star particles in Milky Way-mass, galaxy group, and cluster-scale dark matter halos. The mean profile calculated from both dark and luminous tracers are similar in shape, exhibiting a large degree of halo-to-halo scatter around the average profile. The so-called \"splashback\" radius demarcates the outer boundary of the halo, and manifests as a kink in the velocity dispersion profile, located on average between $\\sim 1.0-1.5r_{200m}$, where $r_"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.15123","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/2010.15123/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2010.15123","created_at":"2026-07-05T02:41:07.054486+00:00"},{"alias_kind":"arxiv_version","alias_value":"2010.15123v2","created_at":"2026-07-05T02:41:07.054486+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15123","created_at":"2026-07-05T02:41:07.054486+00:00"},{"alias_kind":"pith_short_12","alias_value":"PFAJ7G3FOGKI","created_at":"2026-07-05T02:41:07.054486+00:00"},{"alias_kind":"pith_short_16","alias_value":"PFAJ7G3FOGKI5LWR","created_at":"2026-07-05T02:41:07.054486+00:00"},{"alias_kind":"pith_short_8","alias_value":"PFAJ7G3F","created_at":"2026-07-05T02:41:07.054486+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN","json":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN.json","graph_json":"https://pith.science/api/pith-number/PFAJ7G3FOGKI5LWR3SMU42BZXN/graph.json","events_json":"https://pith.science/api/pith-number/PFAJ7G3FOGKI5LWR3SMU42BZXN/events.json","paper":"https://pith.science/paper/PFAJ7G3F"},"agent_actions":{"view_html":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN","download_json":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN.json","view_paper":"https://pith.science/paper/PFAJ7G3F","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2010.15123&json=true","fetch_graph":"https://pith.science/api/pith-number/PFAJ7G3FOGKI5LWR3SMU42BZXN/graph.json","fetch_events":"https://pith.science/api/pith-number/PFAJ7G3FOGKI5LWR3SMU42BZXN/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/action/storage_attestation","attest_author":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/action/author_attestation","sign_citation":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/action/citation_signature","submit_replication":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/action/replication_record"}},"created_at":"2026-07-05T02:41:07.054486+00:00","updated_at":"2026-07-05T02:41:07.054486+00:00"}