{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:GRYSUFG5Q3Y7C76UPKTBMYKRZU","short_pith_number":"pith:GRYSUFG5","canonical_record":{"source":{"id":"1207.5509","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-23T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"9c3de508973d17b3acdb6e91eac5d8f38cda36465f6c0c17e6c97f4c29e5d7d3","abstract_canon_sha256":"6609c500a2541ba0acbdcc626e49b118e1ac91e4eb34764fde69db195489e96c"},"schema_version":"1.0"},"canonical_sha256":"34712a14dd86f1f17fd47aa6166151cd279640edaf62a92ca8b49a93c8ff5d6c","source":{"kind":"arxiv","id":"1207.5509","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.5509","created_at":"2026-05-18T01:56:08Z"},{"alias_kind":"arxiv_version","alias_value":"1207.5509v3","created_at":"2026-05-18T01:56:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.5509","created_at":"2026-05-18T01:56:08Z"},{"alias_kind":"pith_short_12","alias_value":"GRYSUFG5Q3Y7","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"GRYSUFG5Q3Y7C76U","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"GRYSUFG5","created_at":"2026-05-18T12:27:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:GRYSUFG5Q3Y7C76UPKTBMYKRZU","target":"record","payload":{"canonical_record":{"source":{"id":"1207.5509","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-23T20:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"9c3de508973d17b3acdb6e91eac5d8f38cda36465f6c0c17e6c97f4c29e5d7d3","abstract_canon_sha256":"6609c500a2541ba0acbdcc626e49b118e1ac91e4eb34764fde69db195489e96c"},"schema_version":"1.0"},"canonical_sha256":"34712a14dd86f1f17fd47aa6166151cd279640edaf62a92ca8b49a93c8ff5d6c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:08.822074Z","signature_b64":"6XkRBV1tM2gzfxgxFm7SUWXaS27VxpAVDvqv9nOZs9/NKvdEnHhxhuoBFwW9ObiK5plqfj87uUpDk03on5xPAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"34712a14dd86f1f17fd47aa6166151cd279640edaf62a92ca8b49a93c8ff5d6c","last_reissued_at":"2026-05-18T01:56:08.821404Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:08.821404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.5509","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:56:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XXNDO8bo0Mel/mmKVIvxvUpKrQIYL1cItufyW0Ee8dd/zT4dclmMeKRVHGEe0PJ672REERStGSr28OQ8HYGIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T14:28:11.826631Z"},"content_sha256":"6b21cc40bee151f3139fe3b0007f21d12c26ae013ed8b62511eeb55ffbc0e5f9","schema_version":"1.0","event_id":"sha256:6b21cc40bee151f3139fe3b0007f21d12c26ae013ed8b62511eeb55ffbc0e5f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:GRYSUFG5Q3Y7C76UPKTBMYKRZU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Census of Oxygen in Star-Forming Galaxies: An Empirical Model Linking Metallicities, Star Formation Rates and Outflows","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Dawn K. Erb, Gabriel I. Dima, H. Jabran Zahid, Lisa J. Kewley, Romeel Dave","submitted_at":"2012-07-23T20:00:00Z","abstract_excerpt":"In this contribution we present the first census of oxygen in star-forming galaxies in the local universe. We examine three samples of galaxies with metallicities and star formation rates at z = 0.07, 0.8 and 2.26, including the SDSS and DEEP2 surveys. We infer the total mass of oxygen produced and mass of oxygen found in the gas-phase from our local SDSS sample. The star formation history is determined by requiring that galaxies evolve along the relation between stellar mass and star formation rate observed in our three samples. We show that the observed relation between stellar mass and star"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.5509","kind":"arxiv","version":3},"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":"2026-05-18T01:56:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0HQqjev7JO43/3nupiPHq0NQqLDEjgUnQJWAcUS35Hpyv6j9vVBZUhR9tmHDAGF0zbxL5Uq0BYjcEFs1IGQYAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T14:28:11.827159Z"},"content_sha256":"bb07314cf8b03fa1be57aa1046c1f82182bae139479776a2526cc6753f270b94","schema_version":"1.0","event_id":"sha256:bb07314cf8b03fa1be57aa1046c1f82182bae139479776a2526cc6753f270b94"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU/bundle.json","state_url":"https://pith.science/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU/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":"2026-08-18T14:28:11Z","links":{"resolver":"https://pith.science/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU","bundle":"https://pith.science/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU/bundle.json","state":"https://pith.science/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GRYSUFG5Q3Y7C76UPKTBMYKRZU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:GRYSUFG5Q3Y7C76UPKTBMYKRZU","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":"6609c500a2541ba0acbdcc626e49b118e1ac91e4eb34764fde69db195489e96c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-23T20:00:00Z","title_canon_sha256":"9c3de508973d17b3acdb6e91eac5d8f38cda36465f6c0c17e6c97f4c29e5d7d3"},"schema_version":"1.0","source":{"id":"1207.5509","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.5509","created_at":"2026-05-18T01:56:08Z"},{"alias_kind":"arxiv_version","alias_value":"1207.5509v3","created_at":"2026-05-18T01:56:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.5509","created_at":"2026-05-18T01:56:08Z"},{"alias_kind":"pith_short_12","alias_value":"GRYSUFG5Q3Y7","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_16","alias_value":"GRYSUFG5Q3Y7C76U","created_at":"2026-05-18T12:27:06Z"},{"alias_kind":"pith_short_8","alias_value":"GRYSUFG5","created_at":"2026-05-18T12:27:06Z"}],"graph_snapshots":[{"event_id":"sha256:bb07314cf8b03fa1be57aa1046c1f82182bae139479776a2526cc6753f270b94","target":"graph","created_at":"2026-05-18T01:56:08Z","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":"In this contribution we present the first census of oxygen in star-forming galaxies in the local universe. We examine three samples of galaxies with metallicities and star formation rates at z = 0.07, 0.8 and 2.26, including the SDSS and DEEP2 surveys. We infer the total mass of oxygen produced and mass of oxygen found in the gas-phase from our local SDSS sample. The star formation history is determined by requiring that galaxies evolve along the relation between stellar mass and star formation rate observed in our three samples. We show that the observed relation between stellar mass and star","authors_text":"Dawn K. Erb, Gabriel I. Dima, H. Jabran Zahid, Lisa J. Kewley, Romeel Dave","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-23T20:00:00Z","title":"A Census of Oxygen in Star-Forming Galaxies: An Empirical Model Linking Metallicities, Star Formation Rates and Outflows"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.5509","kind":"arxiv","version":3},"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":"sha256:6b21cc40bee151f3139fe3b0007f21d12c26ae013ed8b62511eeb55ffbc0e5f9","target":"record","created_at":"2026-05-18T01:56:08Z","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":"6609c500a2541ba0acbdcc626e49b118e1ac91e4eb34764fde69db195489e96c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-07-23T20:00:00Z","title_canon_sha256":"9c3de508973d17b3acdb6e91eac5d8f38cda36465f6c0c17e6c97f4c29e5d7d3"},"schema_version":"1.0","source":{"id":"1207.5509","kind":"arxiv","version":3}},"canonical_sha256":"34712a14dd86f1f17fd47aa6166151cd279640edaf62a92ca8b49a93c8ff5d6c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"34712a14dd86f1f17fd47aa6166151cd279640edaf62a92ca8b49a93c8ff5d6c","first_computed_at":"2026-05-18T01:56:08.821404Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:08.821404Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6XkRBV1tM2gzfxgxFm7SUWXaS27VxpAVDvqv9nOZs9/NKvdEnHhxhuoBFwW9ObiK5plqfj87uUpDk03on5xPAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:08.822074Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.5509","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6b21cc40bee151f3139fe3b0007f21d12c26ae013ed8b62511eeb55ffbc0e5f9","sha256:bb07314cf8b03fa1be57aa1046c1f82182bae139479776a2526cc6753f270b94"],"state_sha256":"844516aba6061b09a2659ad7e37fc050132296ef507481daa540d443d324eee6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"H29xLtbS457vJZ4gsMybBXnUsX6fJjTFgt0TXC73qiNKB1HngpoiD7MRGyu+nhFdKe8LeCfj5/SK3YU4jt6KCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T14:28:11.830866Z","bundle_sha256":"6bdfcaafd06d563cf132841fef8082add92817bd8d07e7f03a8fe88101f92dc4"}}