{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:VKXM47AVNL4SSKU7BPQOPUPWIT","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":"c4698dfe13d186a17a8b8d540b1b974ab53b6aace4cc1695df3cef7557fc58be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-07T15:01:16Z","title_canon_sha256":"095254c5798246da6493465d9c40aa823465ac64d215b881c784d9b1db830960"},"schema_version":"1.0","source":{"id":"1209.1561","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.1561","created_at":"2026-05-18T01:54:38Z"},{"alias_kind":"arxiv_version","alias_value":"1209.1561v1","created_at":"2026-05-18T01:54:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.1561","created_at":"2026-05-18T01:54:38Z"},{"alias_kind":"pith_short_12","alias_value":"VKXM47AVNL4S","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"VKXM47AVNL4SSKU7","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"VKXM47AV","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:b8e0defed0bb2c1950baf7c303ba45eed182941b13c4e7e1dca197c5c48d2dfd","target":"graph","created_at":"2026-05-18T01:54:38Z","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":"The populations of both quiescent and actively star-forming galaxies at 1<z<2 are still under-represented in our spectroscopic census of galaxies throughout the history of the Universe. In the light of galaxy formation models, however, the evolution of galaxies at these redshifts is of pivotal importance and merits further investigation. We therefore designed a spectroscopic observing campaign of a sample of both massive, quiescent and star-forming galaxies at z>1.4, called Galaxy Mass Assembly ultra-deep Spectroscopic Survey (GMASS). To determine redshifts and physical properties, such as met","authors_text":"Alberto Franceschini, Alvio Renzini, Andrea Cimatti (University of Bologna, Claire Halliday, Emanuele Daddi, Germany), Gianni Zamorani, Giulia Rodighiero, Italy), Jaron Kurk (Max Planck Institute for Extraterrestrial Physics, Lucia Pozzetti, Marco Mignoli, Mark Dickinson, Micol Bolzonella, Paolo Cassata, Piero Rosati, Stefano Berta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-07T15:01:16Z","title":"GMASS ultradeep spectroscopy of galaxies at z~2 - VII. Sample selection and spectroscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.1561","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":"sha256:9f29e929333af6568e54a6676604bccc5e3e8d14ba93148afce6f3550c7def4a","target":"record","created_at":"2026-05-18T01:54:38Z","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":"c4698dfe13d186a17a8b8d540b1b974ab53b6aace4cc1695df3cef7557fc58be","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-07T15:01:16Z","title_canon_sha256":"095254c5798246da6493465d9c40aa823465ac64d215b881c784d9b1db830960"},"schema_version":"1.0","source":{"id":"1209.1561","kind":"arxiv","version":1}},"canonical_sha256":"aaaece7c156af9292a9f0be0e7d1f644d6efb273b2825395c947f0304e691328","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aaaece7c156af9292a9f0be0e7d1f644d6efb273b2825395c947f0304e691328","first_computed_at":"2026-05-18T01:54:38.604524Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:38.604524Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f9SZEusJtPz3npJH9i4oLgpnmlF4DxsQxMUsdnp5TmqxbDSzPNQI4/848IQ1bDCeEtsbfYohOq7Hb0N103VVDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:38.605079Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.1561","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9f29e929333af6568e54a6676604bccc5e3e8d14ba93148afce6f3550c7def4a","sha256:b8e0defed0bb2c1950baf7c303ba45eed182941b13c4e7e1dca197c5c48d2dfd"],"state_sha256":"6ac435d2ac7bf037a3662aa26a0a0d629af07087fdccb2093285b1ac0c6fe18b"}