{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:FSUV4IOA3QBNI5ERUMFO2AYCOM","short_pith_number":"pith:FSUV4IOA","schema_version":"1.0","canonical_sha256":"2ca95e21c0dc02d47491a30aed030273061b29fb49b0d12a02de93db9ab210ef","source":{"kind":"arxiv","id":"2510.02247","version":2},"attestation_state":"computed","paper":{"title":"Measurement of Substructure from the Kinematics of the GD-1 Stellar Stream","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Adrian M. Price-Whelan, Ana Bonaca, David N. Spergel, Jacob Nibauer, Jenny E. Greene","submitted_at":"2025-10-02T17:35:18Z","abstract_excerpt":"Stellar streams are sensitive tracers of low-mass dark matter subhalos and provide a means to test the Cold Dark Matter (CDM) paradigm on small scales. In this work, we connect the intrinsic velocity dispersion of the GD-1 stream to the number density and internal structure of dark matter subhalos in the mass range $10^5$-$10^9 M_\\odot$. We measure the radial velocity dispersion of GD-1 based on 160 identified member stars across four different spectroscopic catalogs. We use repeat observations of the same stars to constrain binarity. We find that the stream's intrinsic radial velocity dispers"},"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":"2510.02247","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.GA","submitted_at":"2025-10-02T17:35:18Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"9c287024261147d9e06b041188ee01997f4e655efe827855257d243de18ec6a7","abstract_canon_sha256":"5f39be0da328f83b8d899771576136908006071a0789a164cf167c013a679c20"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-05T01:15:16.635530Z","signature_b64":"1nOR92p+szNFy+JKrhN77HrcFUaDXHZ9kAfbIxVjDV33qVdURGmM7VLM3Do84yStAePjQ5MSgCb+GJgXSdKTDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2ca95e21c0dc02d47491a30aed030273061b29fb49b0d12a02de93db9ab210ef","last_reissued_at":"2026-06-05T01:15:16.634638Z","signature_status":"signed_v1","first_computed_at":"2026-06-05T01:15:16.634638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurement of Substructure from the Kinematics of the GD-1 Stellar Stream","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.GA","authors_text":"Adrian M. Price-Whelan, Ana Bonaca, David N. Spergel, Jacob Nibauer, Jenny E. Greene","submitted_at":"2025-10-02T17:35:18Z","abstract_excerpt":"Stellar streams are sensitive tracers of low-mass dark matter subhalos and provide a means to test the Cold Dark Matter (CDM) paradigm on small scales. In this work, we connect the intrinsic velocity dispersion of the GD-1 stream to the number density and internal structure of dark matter subhalos in the mass range $10^5$-$10^9 M_\\odot$. We measure the radial velocity dispersion of GD-1 based on 160 identified member stars across four different spectroscopic catalogs. We use repeat observations of the same stars to constrain binarity. We find that the stream's intrinsic radial velocity dispers"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2510.02247","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/2510.02247/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":"2510.02247","created_at":"2026-06-05T01:15:16.634759+00:00"},{"alias_kind":"arxiv_version","alias_value":"2510.02247v2","created_at":"2026-06-05T01:15:16.634759+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2510.02247","created_at":"2026-06-05T01:15:16.634759+00:00"},{"alias_kind":"pith_short_12","alias_value":"FSUV4IOA3QBN","created_at":"2026-06-05T01:15:16.634759+00:00"},{"alias_kind":"pith_short_16","alias_value":"FSUV4IOA3QBNI5ER","created_at":"2026-06-05T01:15:16.634759+00:00"},{"alias_kind":"pith_short_8","alias_value":"FSUV4IOA","created_at":"2026-06-05T01:15:16.634759+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":5,"sample":[{"citing_arxiv_id":"2605.16200","citing_title":"No Stream Left Unscathed: The imprint of a host galaxy","ref_index":275,"is_internal_anchor":true},{"citing_arxiv_id":"2605.15371","citing_title":"Warm, not Fuzzy: Generalized Ultralight Dark Matter Limits from Milky Way Satellites","ref_index":34,"is_internal_anchor":true},{"citing_arxiv_id":"2512.00145","citing_title":"Role of prompt cusps in driving the core collapse of SIDM halos","ref_index":27,"is_internal_anchor":true},{"citing_arxiv_id":"2604.08647","citing_title":"Bypassed Core Formation in Milky Way-Mass SIDM Halos: Implications for the Local Group Past-Pericenter Scenario","ref_index":49,"is_internal_anchor":true},{"citing_arxiv_id":"2604.20958","citing_title":"Characterizing the GD-1 Stream with DESI DR2 Data: Thin Stream and Hot Cocoon","ref_index":51,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM","json":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM.json","graph_json":"https://pith.science/api/pith-number/FSUV4IOA3QBNI5ERUMFO2AYCOM/graph.json","events_json":"https://pith.science/api/pith-number/FSUV4IOA3QBNI5ERUMFO2AYCOM/events.json","paper":"https://pith.science/paper/FSUV4IOA"},"agent_actions":{"view_html":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM","download_json":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM.json","view_paper":"https://pith.science/paper/FSUV4IOA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2510.02247&json=true","fetch_graph":"https://pith.science/api/pith-number/FSUV4IOA3QBNI5ERUMFO2AYCOM/graph.json","fetch_events":"https://pith.science/api/pith-number/FSUV4IOA3QBNI5ERUMFO2AYCOM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM/action/storage_attestation","attest_author":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM/action/author_attestation","sign_citation":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM/action/citation_signature","submit_replication":"https://pith.science/pith/FSUV4IOA3QBNI5ERUMFO2AYCOM/action/replication_record"}},"created_at":"2026-06-05T01:15:16.634759+00:00","updated_at":"2026-06-05T01:15:16.634759+00:00"}