{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:YA5ELPVMZTRZW3ZCIRXUFEMJOO","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"73411cc8e8dd0d61723de1ac7d73b0c7ea0a611364de2652569b624f510e1866","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-26T16:47:04Z","title_canon_sha256":"f3e0cb0d437100c4aedeb31a987105dc06e6aad0b44e35260580bcf7921043e6"},"schema_version":"1.0","source":{"id":"1210.7186","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.7186","created_at":"2026-05-18T03:42:12Z"},{"alias_kind":"arxiv_version","alias_value":"1210.7186v1","created_at":"2026-05-18T03:42:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.7186","created_at":"2026-05-18T03:42:12Z"},{"alias_kind":"pith_short_12","alias_value":"YA5ELPVMZTRZ","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"YA5ELPVMZTRZW3ZC","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"YA5ELPVM","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:2f346323f41d22dcf5d3bed06133c5503cba9234702bda9263d72b2416cfb132","target":"graph","created_at":"2026-05-18T03:42:12Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Our aim in this work is to answer, using simulated narrow-band photometry data, the following general question: What can we learn about galaxies from these new generation cosmological surveys? For instance, can we estimate stellar age and metallicity distributions? Can we separate star-forming galaxies from AGN? Can we measure emission lines, nebular abundances and extinction? With what precision?\n  To accomplish this, we selected a sample of about 300k galaxies with good S/N from the SDSS and divided them in two groups: 200k objects and a template library of 100k. We corrected the spectra to ","authors_text":"Narciso Ben\\'itez, Natalia Vale Asari, Roberto Cid Fernandes, William Schoenell","cross_cats":["astro-ph.IM"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-26T16:47:04Z","title":"Recovering physical properties from narrow-band photometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.7186","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:794365c8d7de09c9f98fc8ba778790b8e21e68b5f4307d409c68dc2580f6a4f3","target":"record","created_at":"2026-05-18T03:42:12Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"73411cc8e8dd0d61723de1ac7d73b0c7ea0a611364de2652569b624f510e1866","cross_cats_sorted":["astro-ph.IM"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-10-26T16:47:04Z","title_canon_sha256":"f3e0cb0d437100c4aedeb31a987105dc06e6aad0b44e35260580bcf7921043e6"},"schema_version":"1.0","source":{"id":"1210.7186","kind":"arxiv","version":1}},"canonical_sha256":"c03a45beaccce39b6f22446f4291897386706293ff860a233ba4d66f0f859558","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c03a45beaccce39b6f22446f4291897386706293ff860a233ba4d66f0f859558","first_computed_at":"2026-05-18T03:42:12.483510Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:42:12.483510Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mRt13e7DJVajZC9N0d0kuTr7BJtjcfSjGbpwa2P1sOKAQPRtbuTCWHeBKBq6JVvR7nW5nvql8GhzqBbdy3IwCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:42:12.484634Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.7186","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:794365c8d7de09c9f98fc8ba778790b8e21e68b5f4307d409c68dc2580f6a4f3","sha256:2f346323f41d22dcf5d3bed06133c5503cba9234702bda9263d72b2416cfb132"],"state_sha256":"d9b67ee99c94654a4d7a8e74f659188716ae6ee8f1c72cabeb92fc7b90e6be1f"}