{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:WVVLI7ROFDRWRJ4FKACMBCDRXW","short_pith_number":"pith:WVVLI7RO","canonical_record":{"source":{"id":"1704.05462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-18T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"84c8e3cced15ce246ed3fa95837a6af0094197963e16e22e20379597aab0b6ff","abstract_canon_sha256":"b4b1bde093bb3036975415e56683c18e9f4c5588e31a75025819d68e1a747d5b"},"schema_version":"1.0"},"canonical_sha256":"b56ab47e2e28e368a7855004c08871bdb534a50dcc891d32c8ec4811ed36e580","source":{"kind":"arxiv","id":"1704.05462","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05462","created_at":"2026-05-18T00:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05462v1","created_at":"2026-05-18T00:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05462","created_at":"2026-05-18T00:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"WVVLI7ROFDRW","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WVVLI7ROFDRWRJ4F","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WVVLI7RO","created_at":"2026-05-18T12:31:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:WVVLI7ROFDRWRJ4FKACMBCDRXW","target":"record","payload":{"canonical_record":{"source":{"id":"1704.05462","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-18T18:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"84c8e3cced15ce246ed3fa95837a6af0094197963e16e22e20379597aab0b6ff","abstract_canon_sha256":"b4b1bde093bb3036975415e56683c18e9f4c5588e31a75025819d68e1a747d5b"},"schema_version":"1.0"},"canonical_sha256":"b56ab47e2e28e368a7855004c08871bdb534a50dcc891d32c8ec4811ed36e580","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:41:59.286969Z","signature_b64":"8M7dRUXZH3oX2+Dh7xRz/k65BmUQhWBqsa1fG2vC3VBScXCckI4iYeKcMlbfnr2wVtEKWE3hCizFMgLAhn23DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b56ab47e2e28e368a7855004c08871bdb534a50dcc891d32c8ec4811ed36e580","last_reissued_at":"2026-05-18T00:41:59.286526Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:41:59.286526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.05462","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z3w7gkABvXuBSyGTB1NsspwmnsgYLsrJOU3dIeec3eN6Vz6A+dz2MlDC+KVYN3BELBhjn54cYC4mGjHTEMbDBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:21:48.668451Z"},"content_sha256":"49cf5785e9e0d4c51838f4198f36d953c8025b6935b45b29b58287f2b488cdec","schema_version":"1.0","event_id":"sha256:49cf5785e9e0d4c51838f4198f36d953c8025b6935b45b29b58287f2b488cdec"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:WVVLI7ROFDRWRJ4FKACMBCDRXW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A methodology to select galaxies just after the quenching of star formation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Andrea Cimatti, Annalisa Citro, Livia Vallini, Lucia Pozzetti, Michele Moresco, Salvatore Quai","submitted_at":"2017-04-18T18:00:02Z","abstract_excerpt":"We propose a new methodology aimed at finding star-forming galaxies in the phase which immediately follows the star-formation (SF) quenching, based on the use of high- to low-ionization emission line ratios. These ratios rapidly disappear after the SF halt, due to the softening of the UV ionizing radiation. We focus on [O III] $\\lambda$5007/H$\\alpha$ and [Ne III] $\\lambda$3869/[O II] $\\lambda$3727, studying them with simulations obtained with the CLOUDY photoionization code. If a sharp quenching is assumed, we find that the two ratios are very sensitive tracers as they drop by a factor $\\sim$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05462","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:41:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"48EaFsZdWrvMmdu8X010tBy4OuHJo9ECO7ZSUwAZy4uVSZEagO5Tkz1zG/nGAhbmRBXtnecUMUIx4yUwyp0ZDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:21:48.669078Z"},"content_sha256":"ad5e2a118735321b924a0d48a4ea4fc70961cd88d84b60c72cc4ec93dc026ca4","schema_version":"1.0","event_id":"sha256:ad5e2a118735321b924a0d48a4ea4fc70961cd88d84b60c72cc4ec93dc026ca4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW/bundle.json","state_url":"https://pith.science/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-25T20:21:48Z","links":{"resolver":"https://pith.science/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW","bundle":"https://pith.science/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW/bundle.json","state":"https://pith.science/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WVVLI7ROFDRWRJ4FKACMBCDRXW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:WVVLI7ROFDRWRJ4FKACMBCDRXW","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":"b4b1bde093bb3036975415e56683c18e9f4c5588e31a75025819d68e1a747d5b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-18T18:00:02Z","title_canon_sha256":"84c8e3cced15ce246ed3fa95837a6af0094197963e16e22e20379597aab0b6ff"},"schema_version":"1.0","source":{"id":"1704.05462","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05462","created_at":"2026-05-18T00:41:59Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05462v1","created_at":"2026-05-18T00:41:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05462","created_at":"2026-05-18T00:41:59Z"},{"alias_kind":"pith_short_12","alias_value":"WVVLI7ROFDRW","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"WVVLI7ROFDRWRJ4F","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"WVVLI7RO","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:ad5e2a118735321b924a0d48a4ea4fc70961cd88d84b60c72cc4ec93dc026ca4","target":"graph","created_at":"2026-05-18T00:41:59Z","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":"We propose a new methodology aimed at finding star-forming galaxies in the phase which immediately follows the star-formation (SF) quenching, based on the use of high- to low-ionization emission line ratios. These ratios rapidly disappear after the SF halt, due to the softening of the UV ionizing radiation. We focus on [O III] $\\lambda$5007/H$\\alpha$ and [Ne III] $\\lambda$3869/[O II] $\\lambda$3727, studying them with simulations obtained with the CLOUDY photoionization code. If a sharp quenching is assumed, we find that the two ratios are very sensitive tracers as they drop by a factor $\\sim$ ","authors_text":"Andrea Cimatti, Annalisa Citro, Livia Vallini, Lucia Pozzetti, Michele Moresco, Salvatore Quai","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-18T18:00:02Z","title":"A methodology to select galaxies just after the quenching of star formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05462","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":"sha256:49cf5785e9e0d4c51838f4198f36d953c8025b6935b45b29b58287f2b488cdec","target":"record","created_at":"2026-05-18T00:41:59Z","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":"b4b1bde093bb3036975415e56683c18e9f4c5588e31a75025819d68e1a747d5b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-04-18T18:00:02Z","title_canon_sha256":"84c8e3cced15ce246ed3fa95837a6af0094197963e16e22e20379597aab0b6ff"},"schema_version":"1.0","source":{"id":"1704.05462","kind":"arxiv","version":1}},"canonical_sha256":"b56ab47e2e28e368a7855004c08871bdb534a50dcc891d32c8ec4811ed36e580","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b56ab47e2e28e368a7855004c08871bdb534a50dcc891d32c8ec4811ed36e580","first_computed_at":"2026-05-18T00:41:59.286526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:41:59.286526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8M7dRUXZH3oX2+Dh7xRz/k65BmUQhWBqsa1fG2vC3VBScXCckI4iYeKcMlbfnr2wVtEKWE3hCizFMgLAhn23DA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:41:59.286969Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.05462","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:49cf5785e9e0d4c51838f4198f36d953c8025b6935b45b29b58287f2b488cdec","sha256:ad5e2a118735321b924a0d48a4ea4fc70961cd88d84b60c72cc4ec93dc026ca4"],"state_sha256":"d1bfb1ac8b8e9075ab45b9bc5e3277f25fa24739e3d595037ab62da9ab20cfc2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YZBSwmJHi7Bf5DFX3bvzNVtit2VpB20Wbj+BMKXNr/42vQbpMe6Ex7iMW5AqY5w4ysIYHIjSXhFBNZED+cM4Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:21:48.672164Z","bundle_sha256":"8032407df2879edeb48f374ce9bdde4310918fe420a0a31e98b0459ebed71358"}}