{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2010:PMSHL37MGGGULGUDYKE4E7F5HD","short_pith_number":"pith:PMSHL37M","schema_version":"1.0","canonical_sha256":"7b2475efec318d459a83c289c27cbd38f2fd8e5773c0f5b444c813bc04b5f19b","source":{"kind":"arxiv","id":"1008.2755","version":2},"attestation_state":"computed","paper":{"title":"The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron Dotter, Ata Sarajedini, Harvey B. Richer, Jay Anderson, Kristin Woodley, Ryan Goldsbury","submitted_at":"2010-08-16T20:00:04Z","abstract_excerpt":"We present new measurements of the centers for 65 Milky Way globular clusters. Centers were determined by fitting ellipses to the density distribution within the inner $2\\arcmin$ of the cluster center, and averaging the centers of these ellipses. The symmetry of clusters was also analyzed by comparing cumulative radial distributions on opposite sides of the cluster across a grid of trial centers. All of the determinations were done with stellar positions derived from a combination of two single-orbit ACS images of the core of the cluster in $F606W$ and $F814W$. We find that the ellipse-fitting"},"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":"1008.2755","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2010-08-16T20:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"5960c429359c565e0f3f1fb1141440217d623ff06f5f3bd915f926b6f897019c","abstract_canon_sha256":"77b47068e7281d37f59bf5a10460e2ee5e0f1ba676608fd506c8b942dfbf8d8a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:47.784303Z","signature_b64":"+rNqGI6MZJTHvOqunK3eqggimU0WPDMfA168qSWbHnZIhmo4vsWJY4lEWF6LgfE0ntrvn/+awkjqilP37hVpBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7b2475efec318d459a83c289c27cbd38f2fd8e5773c0f5b444c813bc04b5f19b","last_reissued_at":"2026-05-18T02:05:47.783714Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:47.783714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The ACS Survey of Galactic Globular Clusters. X. New Determinations of Centers for 65 Clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron Dotter, Ata Sarajedini, Harvey B. Richer, Jay Anderson, Kristin Woodley, Ryan Goldsbury","submitted_at":"2010-08-16T20:00:04Z","abstract_excerpt":"We present new measurements of the centers for 65 Milky Way globular clusters. Centers were determined by fitting ellipses to the density distribution within the inner $2\\arcmin$ of the cluster center, and averaging the centers of these ellipses. The symmetry of clusters was also analyzed by comparing cumulative radial distributions on opposite sides of the cluster across a grid of trial centers. All of the determinations were done with stellar positions derived from a combination of two single-orbit ACS images of the core of the cluster in $F606W$ and $F814W$. We find that the ellipse-fitting"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2755","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":""},"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":"1008.2755","created_at":"2026-05-18T02:05:47.783801+00:00"},{"alias_kind":"arxiv_version","alias_value":"1008.2755v2","created_at":"2026-05-18T02:05:47.783801+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2755","created_at":"2026-05-18T02:05:47.783801+00:00"},{"alias_kind":"pith_short_12","alias_value":"PMSHL37MGGGU","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_16","alias_value":"PMSHL37MGGGULGUD","created_at":"2026-05-18T12:26:12.377268+00:00"},{"alias_kind":"pith_short_8","alias_value":"PMSHL37M","created_at":"2026-05-18T12:26:12.377268+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/PMSHL37MGGGULGUDYKE4E7F5HD","json":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD.json","graph_json":"https://pith.science/api/pith-number/PMSHL37MGGGULGUDYKE4E7F5HD/graph.json","events_json":"https://pith.science/api/pith-number/PMSHL37MGGGULGUDYKE4E7F5HD/events.json","paper":"https://pith.science/paper/PMSHL37M"},"agent_actions":{"view_html":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD","download_json":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD.json","view_paper":"https://pith.science/paper/PMSHL37M","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1008.2755&json=true","fetch_graph":"https://pith.science/api/pith-number/PMSHL37MGGGULGUDYKE4E7F5HD/graph.json","fetch_events":"https://pith.science/api/pith-number/PMSHL37MGGGULGUDYKE4E7F5HD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD/action/storage_attestation","attest_author":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD/action/author_attestation","sign_citation":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD/action/citation_signature","submit_replication":"https://pith.science/pith/PMSHL37MGGGULGUDYKE4E7F5HD/action/replication_record"}},"created_at":"2026-05-18T02:05:47.783801+00:00","updated_at":"2026-05-18T02:05:47.783801+00:00"}