{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:L6UEDA7LGV6TBWMFZFZ7Q7PQJL","short_pith_number":"pith:L6UEDA7L","schema_version":"1.0","canonical_sha256":"5fa84183eb357d30d985c973f87df04ae3bc4078a82ca765d7c885f440794425","source":{"kind":"arxiv","id":"1505.07555","version":1},"attestation_state":"computed","paper":{"title":"Stellar populations of galaxies in the ALHAMBRA survey up to $z \\sim 1$. I. MUFFIT: A Multi-Filter Fitting code for stellar population diagnostics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"A. Del Olmo, A. Fern\\'andez-Soto, A. J. Cenarro, A. Mar\\'in-Franch, A. Molino, B. Ascaso, C. Husillos, C. L\\'opez-Sanjuan, D. Crist\\'obal-Hornillos, E. Alfaro, F. J. Castander, F. Prada, I. Ferreras, I. M\\'arquez, J. A. L. Aguerri, J. Cabrera-Ca\\~no, J. Masegosa, J. M. Quintana, J. Perea, J. Varela, K. Viironen, L. A. D\\'iaz-Garc\\'ia, L. Infante, M. Cervi\\~no, M. Moles, M. Povi\\'c, N. Ben\\'itez, P. Arnalte-Mur, R. M. Gonz\\'alez-Delgado, T. Aparicio-Villegas, T. Broadhurst, V. J. Mart\\'inez","submitted_at":"2015-05-28T06:18:29Z","abstract_excerpt":"We present MUFFIT, a new generic code optimized to retrieve the main stellar population parameters of galaxies in photometric multi-filter surveys, and we check its reliability and feasibility with real galaxy data from the ALHAMBRA survey. Making use of an error-weighted $\\chi^2$-test, we compare the multi-filter fluxes of galaxies with the synthetic photometry of mixtures of two single stellar populations at different redshifts and extinctions, to provide through a Monte Carlo method the most likely range of stellar population parameters (mainly ages and metallicities), extinctions, redshift"},"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":"1505.07555","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-05-28T06:18:29Z","cross_cats_sorted":["astro-ph.CO","astro-ph.IM"],"title_canon_sha256":"a03ba44f555071550dee0b4bda89db12caf6e8ddf0e59ff175977c4293c8975e","abstract_canon_sha256":"b1fb6e991fa240f184ca742bf86a1518d80a15b1a064f01bf0654480027b07f3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:31:38.782306Z","signature_b64":"zqOILdbcsdSns2jDIiHa8j8vi6L5EDy7wxQXSTW8Lxo2GZSHXf2MAJuci/ZdeeQ7IzEfPumdtV92dyKvDeDbAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5fa84183eb357d30d985c973f87df04ae3bc4078a82ca765d7c885f440794425","last_reissued_at":"2026-05-18T01:31:38.781761Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:31:38.781761Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Stellar populations of galaxies in the ALHAMBRA survey up to $z \\sim 1$. I. MUFFIT: A Multi-Filter Fitting code for stellar population diagnostics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.IM"],"primary_cat":"astro-ph.GA","authors_text":"A. Del Olmo, A. Fern\\'andez-Soto, A. J. Cenarro, A. Mar\\'in-Franch, A. Molino, B. Ascaso, C. Husillos, C. L\\'opez-Sanjuan, D. Crist\\'obal-Hornillos, E. Alfaro, F. J. Castander, F. Prada, I. Ferreras, I. M\\'arquez, J. A. L. Aguerri, J. Cabrera-Ca\\~no, J. Masegosa, J. M. Quintana, J. Perea, J. Varela, K. Viironen, L. A. D\\'iaz-Garc\\'ia, L. Infante, M. Cervi\\~no, M. Moles, M. Povi\\'c, N. Ben\\'itez, P. Arnalte-Mur, R. M. Gonz\\'alez-Delgado, T. Aparicio-Villegas, T. Broadhurst, V. J. Mart\\'inez","submitted_at":"2015-05-28T06:18:29Z","abstract_excerpt":"We present MUFFIT, a new generic code optimized to retrieve the main stellar population parameters of galaxies in photometric multi-filter surveys, and we check its reliability and feasibility with real galaxy data from the ALHAMBRA survey. Making use of an error-weighted $\\chi^2$-test, we compare the multi-filter fluxes of galaxies with the synthetic photometry of mixtures of two single stellar populations at different redshifts and extinctions, to provide through a Monte Carlo method the most likely range of stellar population parameters (mainly ages and metallicities), extinctions, redshift"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07555","kind":"arxiv","version":1},"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":"1505.07555","created_at":"2026-05-18T01:31:38.781869+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.07555v1","created_at":"2026-05-18T01:31:38.781869+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07555","created_at":"2026-05-18T01:31:38.781869+00:00"},{"alias_kind":"pith_short_12","alias_value":"L6UEDA7LGV6T","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_16","alias_value":"L6UEDA7LGV6TBWMF","created_at":"2026-05-18T12:29:29.992203+00:00"},{"alias_kind":"pith_short_8","alias_value":"L6UEDA7L","created_at":"2026-05-18T12:29:29.992203+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/L6UEDA7LGV6TBWMFZFZ7Q7PQJL","json":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL.json","graph_json":"https://pith.science/api/pith-number/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/graph.json","events_json":"https://pith.science/api/pith-number/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/events.json","paper":"https://pith.science/paper/L6UEDA7L"},"agent_actions":{"view_html":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL","download_json":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL.json","view_paper":"https://pith.science/paper/L6UEDA7L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.07555&json=true","fetch_graph":"https://pith.science/api/pith-number/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/graph.json","fetch_events":"https://pith.science/api/pith-number/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/action/storage_attestation","attest_author":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/action/author_attestation","sign_citation":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/action/citation_signature","submit_replication":"https://pith.science/pith/L6UEDA7LGV6TBWMFZFZ7Q7PQJL/action/replication_record"}},"created_at":"2026-05-18T01:31:38.781869+00:00","updated_at":"2026-05-18T01:31:38.781869+00:00"}