{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:NYUEWBTRVCGGDLQCJZCVUQFQJV","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":"0144de3a48eec399ab43182504bf4232d3a74909e0de3565adae3d48f4ee9308","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-07T08:36:08Z","title_canon_sha256":"0e737887be6136d386ca9de165a226159d43948ab9119b195e4ef3efef897920"},"schema_version":"1.0","source":{"id":"0912.1180","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0912.1180","created_at":"2026-05-18T02:10:26Z"},{"alias_kind":"arxiv_version","alias_value":"0912.1180v1","created_at":"2026-05-18T02:10:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0912.1180","created_at":"2026-05-18T02:10:26Z"},{"alias_kind":"pith_short_12","alias_value":"NYUEWBTRVCGG","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_16","alias_value":"NYUEWBTRVCGGDLQC","created_at":"2026-05-18T12:26:01Z"},{"alias_kind":"pith_short_8","alias_value":"NYUEWBTR","created_at":"2026-05-18T12:26:01Z"}],"graph_snapshots":[{"event_id":"sha256:c4f7538d28d55736fbeac5ec3cd680a1facb9d0af2a8be51c0e1e2666b86c762","target":"graph","created_at":"2026-05-18T02:10:26Z","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":"Analyzing 24 mu m MIPS/Spitzer data and the [O II]3727 line of a sample of galaxies at 0.4 < z < 0.8 from the ESO Distant Cluster Survey (EDisCS), we investigate the ongoing star formation rate (SFR) and the specific star formation rate (SSFR) as a function of stellar mass in galaxy clusters and groups, and compare with field studies. As for the field, we find a decline in SFR with time, indicating that star formation (SF) was more active in the past, and a decline in SSFR as galaxy stellar mass increases, showing that the current SF contributes more to the fractional growth of low-mass galaxi","authors_text":"2), (2) INAF-Astronomical Observatory of Padova, (3) Department of Physics, (4) University of Kansas, (5) Spitzer Science Center, (6) School of Physics, Astronomy, Benedetta Vulcani (1, Bianca M. Poggianti (2), California Institute of Technology, Department of Physics, Gregory Rudnick (4), Italy, Loudonville, Padova University, Rose A. Finn (3), Siena College, Steven Bamford (6) ((1) Astronomical Department, United Kingdom), University of Nottingham, USA, Vandana Desai (5)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-07T08:36:08Z","title":"Comparing the relation between star formation and galaxy mass in different environments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.1180","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":"sha256:6549a078a7ced6f174ec81e481ff2d3281b8055c7306aad04c90e697dac53f3d","target":"record","created_at":"2026-05-18T02:10:26Z","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":"0144de3a48eec399ab43182504bf4232d3a74909e0de3565adae3d48f4ee9308","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2009-12-07T08:36:08Z","title_canon_sha256":"0e737887be6136d386ca9de165a226159d43948ab9119b195e4ef3efef897920"},"schema_version":"1.0","source":{"id":"0912.1180","kind":"arxiv","version":1}},"canonical_sha256":"6e284b0671a88c61ae024e455a40b04d563a214dbe6a36f157f04179cb0e23b6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e284b0671a88c61ae024e455a40b04d563a214dbe6a36f157f04179cb0e23b6","first_computed_at":"2026-05-18T02:10:26.051628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:10:26.051628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xuG5L9xNAp8RSEMXfCAeP5LWOKOmDnnNyDEjumRYPGnXoNFAe4tMXX3NfFcI/ONEJgHOPbnTbPo4yHTbAjkDBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:10:26.051996Z","signed_message":"canonical_sha256_bytes"},"source_id":"0912.1180","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6549a078a7ced6f174ec81e481ff2d3281b8055c7306aad04c90e697dac53f3d","sha256:c4f7538d28d55736fbeac5ec3cd680a1facb9d0af2a8be51c0e1e2666b86c762"],"state_sha256":"1a72286c9d52e618aea5372e362cc5441c6a58898948991555bac0e9869deccd"}