{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:TUYFUL2RZ5ISGETDLCGS3KZ4I6","short_pith_number":"pith:TUYFUL2R","schema_version":"1.0","canonical_sha256":"9d305a2f51cf51231263588d2dab3c47b45366d9493ba69cfc21a8617c375955","source":{"kind":"arxiv","id":"1104.0054","version":2},"attestation_state":"computed","paper":{"title":"A Link to the Past: Using Markov Chain Monte Carlo Fitting to Constrain Fundamental Parameters of High-Redshift Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anton Koekemoer, B. Rothberg, James Rhoads, Kim K. Nilsson, N. Pirzkal, Sangeeta Malhotra, S. Finkelstein","submitted_at":"2011-04-01T00:47:08Z","abstract_excerpt":"We have a developed a new method for fitting spectral energy distributions (SEDs) to identify and constrain the physical properties of high-redshift (4 < z < 8) galaxies. Our approach uses an implementation of Bayesian based Markov Chain Monte Carlo (PiMC^2) that allows us to compare observations to arbitrarily complex models and to compute 95% credible intervals that provide robust constraints for the model parameters. The work is presented in 2 sections. In the first, we test PiMC^2 using simulated SEDs to not only confirm the recovery of the known inputs but to assess the limitations of the"},"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":"1104.0054","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-01T00:47:08Z","cross_cats_sorted":[],"title_canon_sha256":"15e979f9b05e0f9f334a58aa2c65a687c1d5b0b2e58f909145551caacd7e75f0","abstract_canon_sha256":"4a4b4519028ff70090423496bed4afb7c3e02bf73a48cde2aae6d2bf5209269d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:41.743869Z","signature_b64":"MGX36y1KgNRF90Cqg0iPHHW9OYZZbv9P1YZvvYc0uCKWuhs9xXOol4QrC6QoZ2QiO+/idc4V1Dzqcb1CMJ/WCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d305a2f51cf51231263588d2dab3c47b45366d9493ba69cfc21a8617c375955","last_reissued_at":"2026-05-18T02:02:41.743154Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:41.743154Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Link to the Past: Using Markov Chain Monte Carlo Fitting to Constrain Fundamental Parameters of High-Redshift Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Anton Koekemoer, B. Rothberg, James Rhoads, Kim K. Nilsson, N. Pirzkal, Sangeeta Malhotra, S. Finkelstein","submitted_at":"2011-04-01T00:47:08Z","abstract_excerpt":"We have a developed a new method for fitting spectral energy distributions (SEDs) to identify and constrain the physical properties of high-redshift (4 < z < 8) galaxies. Our approach uses an implementation of Bayesian based Markov Chain Monte Carlo (PiMC^2) that allows us to compare observations to arbitrarily complex models and to compute 95% credible intervals that provide robust constraints for the model parameters. The work is presented in 2 sections. In the first, we test PiMC^2 using simulated SEDs to not only confirm the recovery of the known inputs but to assess the limitations of the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0054","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":"1104.0054","created_at":"2026-05-18T02:02:41.743257+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.0054v2","created_at":"2026-05-18T02:02:41.743257+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0054","created_at":"2026-05-18T02:02:41.743257+00:00"},{"alias_kind":"pith_short_12","alias_value":"TUYFUL2RZ5IS","created_at":"2026-05-18T12:26:42.757692+00:00"},{"alias_kind":"pith_short_16","alias_value":"TUYFUL2RZ5ISGETD","created_at":"2026-05-18T12:26:42.757692+00:00"},{"alias_kind":"pith_short_8","alias_value":"TUYFUL2R","created_at":"2026-05-18T12:26:42.757692+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/TUYFUL2RZ5ISGETDLCGS3KZ4I6","json":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6.json","graph_json":"https://pith.science/api/pith-number/TUYFUL2RZ5ISGETDLCGS3KZ4I6/graph.json","events_json":"https://pith.science/api/pith-number/TUYFUL2RZ5ISGETDLCGS3KZ4I6/events.json","paper":"https://pith.science/paper/TUYFUL2R"},"agent_actions":{"view_html":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6","download_json":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6.json","view_paper":"https://pith.science/paper/TUYFUL2R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.0054&json=true","fetch_graph":"https://pith.science/api/pith-number/TUYFUL2RZ5ISGETDLCGS3KZ4I6/graph.json","fetch_events":"https://pith.science/api/pith-number/TUYFUL2RZ5ISGETDLCGS3KZ4I6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6/action/storage_attestation","attest_author":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6/action/author_attestation","sign_citation":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6/action/citation_signature","submit_replication":"https://pith.science/pith/TUYFUL2RZ5ISGETDLCGS3KZ4I6/action/replication_record"}},"created_at":"2026-05-18T02:02:41.743257+00:00","updated_at":"2026-05-18T02:02:41.743257+00:00"}