{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:Z7OQ5TG3H3ZKMVCNQPGT34R3LT","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":"934d54d20577c2efe6492434c56bce1dc8bd0d7f48ba1343c3b08f887e1abfab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-19T16:27:08Z","title_canon_sha256":"c41b102bb5d9c2c9c2be1e8740dd78e330a250c7a79156b4874e22e90a0b940d"},"schema_version":"1.0","source":{"id":"1709.06511","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1709.06511","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"1709.06511v1","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1709.06511","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"Z7OQ5TG3H3ZK","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"Z7OQ5TG3H3ZKMVCN","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"Z7OQ5TG3","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:4a01e74fe01f4336f19c19046ebe82f6dee7ee5999fc531eb3a792df4e8a3186","target":"graph","created_at":"2026-05-18T00:19:26Z","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 traditional knowledge of the mechanisms that caused the formation and evolution of early-type galaxies (ETG) in a hierarchical universe was challenged by the unexpected finding by ATLAS3D that 86% of the ETGs show signs of a fast-rotating disk. This implies a common origin of most spiral galaxies, followed by a quenching phase, while only a minority of the most massive systems are slow rotators and were likely to be the products of merger events. Our aim is to improve our knowledge on the content and distribution of ionized hydrogen and their usage to form stars in a representative sample ","authors_text":"A. Boselli, G. Consolandi, G. Gavazzi, M. Fossati, M. Fumagalli, S. Pedraglio","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-19T16:27:08Z","title":"Halpha imaging observations of early-type galaxies from the ATLAS3D survey"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.06511","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":"sha256:98ac79637a1a519cf5c9c0d2677098ce6a662a2be25e296de4924a13a9682982","target":"record","created_at":"2026-05-18T00:19:26Z","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":"934d54d20577c2efe6492434c56bce1dc8bd0d7f48ba1343c3b08f887e1abfab","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-09-19T16:27:08Z","title_canon_sha256":"c41b102bb5d9c2c9c2be1e8740dd78e330a250c7a79156b4874e22e90a0b940d"},"schema_version":"1.0","source":{"id":"1709.06511","kind":"arxiv","version":1}},"canonical_sha256":"cfdd0eccdb3ef2a6544d83cd3df23b5ce355e0cf5f76ff6849e69a2c057ec22e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfdd0eccdb3ef2a6544d83cd3df23b5ce355e0cf5f76ff6849e69a2c057ec22e","first_computed_at":"2026-05-18T00:19:26.770707Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:26.770707Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0Qx2qEdKdwj/akNzeaVtLzK/yrbm9sJtTUun2SRu5jyC9ygIq39Hy3ZNiL+S94btl+Dw514SYRxudiKvpMJUDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:26.771184Z","signed_message":"canonical_sha256_bytes"},"source_id":"1709.06511","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98ac79637a1a519cf5c9c0d2677098ce6a662a2be25e296de4924a13a9682982","sha256:4a01e74fe01f4336f19c19046ebe82f6dee7ee5999fc531eb3a792df4e8a3186"],"state_sha256":"24e533b1762884f5722cf3522087c1101a7c83734cea0ea9276f1869524dda19"}