{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:SKFZ5TIDHMF2MDKID3K5TROJYT","short_pith_number":"pith:SKFZ5TID","schema_version":"1.0","canonical_sha256":"928b9ecd033b0ba60d481ed5d9c5c9c4efeaa4a170f8fb130d9b5d74e609781d","source":{"kind":"arxiv","id":"1308.6009","version":3},"attestation_state":"computed","paper":{"title":"Robust PCA and MIC statistics of baryons in early mini-haloes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. Ciardi, R. S. de Souza, U. Maio, V. Biffi","submitted_at":"2013-08-27T22:47:01Z","abstract_excerpt":"We present a novel approach, based on robust principal components analysis (RPCA) and maximal information coefficient (MIC), to study the redshift dependence of halo baryonic properties. Our data are composed of a set of different physical quantities for primordial minihaloes: dark-matter mass ($M_{\\mathrm{dm}}$), gas mass ($M_{\\mathrm{gas}}$), stellar mass ($M_{\\mathrm{star}}$), molecular fraction (${\\mathrm{x_{mol}}}$), metallicity ($Z$), star formation rate (SFR) and temperature. We find that $M_{\\mathrm{dm}}$ and $M_{\\mathrm{gas}}$ are dominant factors for variance, particularly at high re"},"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":"1308.6009","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-08-27T22:47:01Z","cross_cats_sorted":[],"title_canon_sha256":"ca0c085e933ce207c3fab89b7d801fe0f816f53d3bb01daa18defdf8e09036d3","abstract_canon_sha256":"2917a60b2429c874a2a427cfbd677b3a7f72fc3a28234188a314c2abf9a5c041"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:56:44.027531Z","signature_b64":"z2a4az910O9Oc3RV7OF7wDjilM4eeoYuXjxnFC4fIhjmlbEIgfgrWXxNeZmVY62i+Mh+0m8mVSKTrIfMvLkeCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"928b9ecd033b0ba60d481ed5d9c5c9c4efeaa4a170f8fb130d9b5d74e609781d","last_reissued_at":"2026-05-18T02:56:44.026973Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:56:44.026973Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Robust PCA and MIC statistics of baryons in early mini-haloes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"B. Ciardi, R. S. de Souza, U. Maio, V. Biffi","submitted_at":"2013-08-27T22:47:01Z","abstract_excerpt":"We present a novel approach, based on robust principal components analysis (RPCA) and maximal information coefficient (MIC), to study the redshift dependence of halo baryonic properties. Our data are composed of a set of different physical quantities for primordial minihaloes: dark-matter mass ($M_{\\mathrm{dm}}$), gas mass ($M_{\\mathrm{gas}}$), stellar mass ($M_{\\mathrm{star}}$), molecular fraction (${\\mathrm{x_{mol}}}$), metallicity ($Z$), star formation rate (SFR) and temperature. We find that $M_{\\mathrm{dm}}$ and $M_{\\mathrm{gas}}$ are dominant factors for variance, particularly at high re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1308.6009","kind":"arxiv","version":3},"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":"1308.6009","created_at":"2026-05-18T02:56:44.027073+00:00"},{"alias_kind":"arxiv_version","alias_value":"1308.6009v3","created_at":"2026-05-18T02:56:44.027073+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1308.6009","created_at":"2026-05-18T02:56:44.027073+00:00"},{"alias_kind":"pith_short_12","alias_value":"SKFZ5TIDHMF2","created_at":"2026-05-18T12:27:59.945178+00:00"},{"alias_kind":"pith_short_16","alias_value":"SKFZ5TIDHMF2MDKI","created_at":"2026-05-18T12:27:59.945178+00:00"},{"alias_kind":"pith_short_8","alias_value":"SKFZ5TID","created_at":"2026-05-18T12:27:59.945178+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/SKFZ5TIDHMF2MDKID3K5TROJYT","json":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT.json","graph_json":"https://pith.science/api/pith-number/SKFZ5TIDHMF2MDKID3K5TROJYT/graph.json","events_json":"https://pith.science/api/pith-number/SKFZ5TIDHMF2MDKID3K5TROJYT/events.json","paper":"https://pith.science/paper/SKFZ5TID"},"agent_actions":{"view_html":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT","download_json":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT.json","view_paper":"https://pith.science/paper/SKFZ5TID","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1308.6009&json=true","fetch_graph":"https://pith.science/api/pith-number/SKFZ5TIDHMF2MDKID3K5TROJYT/graph.json","fetch_events":"https://pith.science/api/pith-number/SKFZ5TIDHMF2MDKID3K5TROJYT/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT/action/storage_attestation","attest_author":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT/action/author_attestation","sign_citation":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT/action/citation_signature","submit_replication":"https://pith.science/pith/SKFZ5TIDHMF2MDKID3K5TROJYT/action/replication_record"}},"created_at":"2026-05-18T02:56:44.027073+00:00","updated_at":"2026-05-18T02:56:44.027073+00:00"}