{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:PFAJ7G3FOGKI5LWR3SMU42BZXN","short_pith_number":"pith:PFAJ7G3F","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"},"canonical_sha256":"79409f9b6571948eaed1dc994e6839bb4a444864af61026133aa87c7b3aa5c71","source":{"kind":"arxiv","id":"2010.15123","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.15123","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"arxiv_version","alias_value":"2010.15123v2","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15123","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"pith_short_12","alias_value":"PFAJ7G3FOGKI","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"pith_short_16","alias_value":"PFAJ7G3FOGKI5LWR","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"pith_short_8","alias_value":"PFAJ7G3F","created_at":"2026-07-05T02:41:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:PFAJ7G3FOGKI5LWR3SMU42BZXN","target":"record","payload":{"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"},"canonical_sha256":"79409f9b6571948eaed1dc994e6839bb4a444864af61026133aa87c7b3aa5c71","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"},"source_kind":"arxiv","source_id":"2010.15123","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:41:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A0osYuHfuZnQXwCRL2X7MnWq7OVTEQCphwK+bDRXc07FA/fmXd0iQuhrHxLlEYWjavg5pjMPsPF/rZvvLtyEAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T14:26:59.600372Z"},"content_sha256":"86f8b7716ac6979c95ea9a815576b89a35d4c83d244bb986ce4e9851747cda27","schema_version":"1.0","event_id":"sha256:86f8b7716ac6979c95ea9a815576b89a35d4c83d244bb986ce4e9851747cda27"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:PFAJ7G3FOGKI5LWR3SMU42BZXN","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:41:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"G6QzgdkgIgkcY0B8r5eSTfJ2KEM8Fm234qHX9JZprTLKoHEW5iPZKebV4q/azwrpgmdSjt5f2ue6rJ7uWLgtAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T14:26:59.604052Z"},"content_sha256":"59b14624bd2cf629ce452f45681de3d1775b3f27e72b1c8ee75701ca5c6da0e0","schema_version":"1.0","event_id":"sha256:59b14624bd2cf629ce452f45681de3d1775b3f27e72b1c8ee75701ca5c6da0e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/bundle.json","state_url":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/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":"2026-08-05T14:26:59Z","links":{"resolver":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN","bundle":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/bundle.json","state":"https://pith.science/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PFAJ7G3FOGKI5LWR3SMU42BZXN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:PFAJ7G3FOGKI5LWR3SMU42BZXN","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":"f73767830fc2e809d22a6db6e93d232a1ba0aebafd994db1bff5acba1f23f3d8","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T18:00:00Z","title_canon_sha256":"f1d3e148d41ee0eb2dd0b6e6ec775851ecb2375f2084e21ce105a87e8f392ef0"},"schema_version":"1.0","source":{"id":"2010.15123","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2010.15123","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"arxiv_version","alias_value":"2010.15123v2","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2010.15123","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"pith_short_12","alias_value":"PFAJ7G3FOGKI","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"pith_short_16","alias_value":"PFAJ7G3FOGKI5LWR","created_at":"2026-07-05T02:41:07Z"},{"alias_kind":"pith_short_8","alias_value":"PFAJ7G3F","created_at":"2026-07-05T02:41:07Z"}],"graph_snapshots":[{"event_id":"sha256:59b14624bd2cf629ce452f45681de3d1775b3f27e72b1c8ee75701ca5c6da0e0","target":"graph","created_at":"2026-07-05T02:41:07Z","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/2010.15123/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"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_","authors_text":"Abraham Loeb, Sownak Bose","cross_cats":["astro-ph.CO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T18:00:00Z","title":"Measuring the mass and concentration of dark matter halos from the velocity dispersion profile of their stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2010.15123","kind":"arxiv","version":2},"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":"sha256:86f8b7716ac6979c95ea9a815576b89a35d4c83d244bb986ce4e9851747cda27","target":"record","created_at":"2026-07-05T02:41:07Z","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":"f73767830fc2e809d22a6db6e93d232a1ba0aebafd994db1bff5acba1f23f3d8","cross_cats_sorted":["astro-ph.CO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-10-28T18:00:00Z","title_canon_sha256":"f1d3e148d41ee0eb2dd0b6e6ec775851ecb2375f2084e21ce105a87e8f392ef0"},"schema_version":"1.0","source":{"id":"2010.15123","kind":"arxiv","version":2}},"canonical_sha256":"79409f9b6571948eaed1dc994e6839bb4a444864af61026133aa87c7b3aa5c71","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"79409f9b6571948eaed1dc994e6839bb4a444864af61026133aa87c7b3aa5c71","first_computed_at":"2026-07-05T02:41:07.054426Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:41:07.054426Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2sF2sZETEXH5yM7lx/a3eg9MfbiQ3WYIKud0jDWYQG0oseGYDQjBg0ceBlDRYvExtel/KwoQSyN1TQ63LmwyBA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:41:07.054943Z","signed_message":"canonical_sha256_bytes"},"source_id":"2010.15123","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:86f8b7716ac6979c95ea9a815576b89a35d4c83d244bb986ce4e9851747cda27","sha256:59b14624bd2cf629ce452f45681de3d1775b3f27e72b1c8ee75701ca5c6da0e0"],"state_sha256":"f835e819e6bf444476f8779835663e68908c9b0f0fc92ff5c2a6ee55aed07aa8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OjUse9yCo9vRO5fM0tYREaxNvK4eV4McnD1WzQiVJUl7G434ucy2xT8/MDnGEYXUxpIod/yOt4GcAiFyUxXCCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T14:26:59.609406Z","bundle_sha256":"0bde33bc4b848b3677984958b0a63f1995bd1237b6ff72fa2ec43e71c852bf08"}}