{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:CSWHQYKWXQSG6DVFSGRPFQ5OPC","short_pith_number":"pith:CSWHQYKW","canonical_record":{"source":{"id":"1206.6300","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-27T15:13:47Z","cross_cats_sorted":[],"title_canon_sha256":"ae6b4f1b4e9fe6868c5ff231bd949674ac9559981ae32dcd273ffdf4a8597eac","abstract_canon_sha256":"84dae851af221d1adfe4f9e32e13499047f42389a1eae41a7a2e8807772697b3"},"schema_version":"1.0"},"canonical_sha256":"14ac786156bc246f0ea591a2f2c3ae78967c0156f0be990ad64e1cbef21b5f7e","source":{"kind":"arxiv","id":"1206.6300","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.6300","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"arxiv_version","alias_value":"1206.6300v2","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.6300","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"pith_short_12","alias_value":"CSWHQYKWXQSG","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CSWHQYKWXQSG6DVF","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CSWHQYKW","created_at":"2026-05-18T12:27:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:CSWHQYKWXQSG6DVFSGRPFQ5OPC","target":"record","payload":{"canonical_record":{"source":{"id":"1206.6300","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-27T15:13:47Z","cross_cats_sorted":[],"title_canon_sha256":"ae6b4f1b4e9fe6868c5ff231bd949674ac9559981ae32dcd273ffdf4a8597eac","abstract_canon_sha256":"84dae851af221d1adfe4f9e32e13499047f42389a1eae41a7a2e8807772697b3"},"schema_version":"1.0"},"canonical_sha256":"14ac786156bc246f0ea591a2f2c3ae78967c0156f0be990ad64e1cbef21b5f7e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:41.289709Z","signature_b64":"s7HihqB+tX4m9aSfivcmvLNkWFDaCmdYY7Mr+BA6g4CMKltyXLDD+elwaJTrjyRf+V/rz2bo/YoHFdhrBibVCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"14ac786156bc246f0ea591a2f2c3ae78967c0156f0be990ad64e1cbef21b5f7e","last_reissued_at":"2026-05-18T01:56:41.289347Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:41.289347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1206.6300","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:56:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Kq0YeHUwlLhS9ojI6VCaVzHDpkPKHVgoxV3GMMdfrvN78wQQhcbmv3XcJD/w/VO1jCivPeAgmhFlEMXzWsBmCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:02:02.912158Z"},"content_sha256":"df467df10127ca315b68f0c59899e3c60f93a343683ceca897a41fbb2cff7bea","schema_version":"1.0","event_id":"sha256:df467df10127ca315b68f0c59899e3c60f93a343683ceca897a41fbb2cff7bea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:CSWHQYKWXQSG6DVFSGRPFQ5OPC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Gas-phase metallicity of 27 galaxies at intermediate redshift","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Cardullo, A. Pizzella, E. Dalla Bont\\`a, E. M. Corsini, L. Morelli, V. Calvi","submitted_at":"2012-06-27T15:13:47Z","abstract_excerpt":"The purpose of this work is to make available new gas-phase oxygen abundance measurements for a serendipitous sample of 27 galaxies with redshift 0.35<z<0.52. We measured the equivalent widths of the [O II]{\\lambda}3727, H{\\beta}, and [O III]{\\lambda}{\\lambda}4959, 5007 emission lines observed in the galaxy spectra obtained with the Visible Multi-Object Spectrograph mounted at the Very Large Telescope. For each galaxy, we derived the metallicity-sensitive emission lines ratio R23, ionization-sensitive emission lines ratio O32, and gas-phase oxygen abundance 12+log(O/H). The values of gas-phase"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.6300","kind":"arxiv","version":2},"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":"2026-05-18T01:56:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a8mqfRpiC1OvNgyc7nTo/kVa6V5N0nwAsst2eYqSxW3HwaUsVFVy3vEy8kTiY3d3Hm+u5f6FaiGFyeaEbxJUAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T23:02:02.912626Z"},"content_sha256":"6403cb0e7ff95a21195dff4a05bef8b0163ee5c35e1ea7738bb7508cdefb1b3c","schema_version":"1.0","event_id":"sha256:6403cb0e7ff95a21195dff4a05bef8b0163ee5c35e1ea7738bb7508cdefb1b3c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC/bundle.json","state_url":"https://pith.science/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC/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":"2026-06-02T23:02:02Z","links":{"resolver":"https://pith.science/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC","bundle":"https://pith.science/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC/bundle.json","state":"https://pith.science/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CSWHQYKWXQSG6DVFSGRPFQ5OPC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:CSWHQYKWXQSG6DVFSGRPFQ5OPC","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":"84dae851af221d1adfe4f9e32e13499047f42389a1eae41a7a2e8807772697b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-27T15:13:47Z","title_canon_sha256":"ae6b4f1b4e9fe6868c5ff231bd949674ac9559981ae32dcd273ffdf4a8597eac"},"schema_version":"1.0","source":{"id":"1206.6300","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1206.6300","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"arxiv_version","alias_value":"1206.6300v2","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1206.6300","created_at":"2026-05-18T01:56:41Z"},{"alias_kind":"pith_short_12","alias_value":"CSWHQYKWXQSG","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_16","alias_value":"CSWHQYKWXQSG6DVF","created_at":"2026-05-18T12:27:01Z"},{"alias_kind":"pith_short_8","alias_value":"CSWHQYKW","created_at":"2026-05-18T12:27:01Z"}],"graph_snapshots":[{"event_id":"sha256:6403cb0e7ff95a21195dff4a05bef8b0163ee5c35e1ea7738bb7508cdefb1b3c","target":"graph","created_at":"2026-05-18T01:56:41Z","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 purpose of this work is to make available new gas-phase oxygen abundance measurements for a serendipitous sample of 27 galaxies with redshift 0.35<z<0.52. We measured the equivalent widths of the [O II]{\\lambda}3727, H{\\beta}, and [O III]{\\lambda}{\\lambda}4959, 5007 emission lines observed in the galaxy spectra obtained with the Visible Multi-Object Spectrograph mounted at the Very Large Telescope. For each galaxy, we derived the metallicity-sensitive emission lines ratio R23, ionization-sensitive emission lines ratio O32, and gas-phase oxygen abundance 12+log(O/H). The values of gas-phase","authors_text":"A. Cardullo, A. Pizzella, E. Dalla Bont\\`a, E. M. Corsini, L. Morelli, V. Calvi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-27T15:13:47Z","title":"Gas-phase metallicity of 27 galaxies at intermediate redshift"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1206.6300","kind":"arxiv","version":2},"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:df467df10127ca315b68f0c59899e3c60f93a343683ceca897a41fbb2cff7bea","target":"record","created_at":"2026-05-18T01:56:41Z","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":"84dae851af221d1adfe4f9e32e13499047f42389a1eae41a7a2e8807772697b3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-06-27T15:13:47Z","title_canon_sha256":"ae6b4f1b4e9fe6868c5ff231bd949674ac9559981ae32dcd273ffdf4a8597eac"},"schema_version":"1.0","source":{"id":"1206.6300","kind":"arxiv","version":2}},"canonical_sha256":"14ac786156bc246f0ea591a2f2c3ae78967c0156f0be990ad64e1cbef21b5f7e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"14ac786156bc246f0ea591a2f2c3ae78967c0156f0be990ad64e1cbef21b5f7e","first_computed_at":"2026-05-18T01:56:41.289347Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:41.289347Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"s7HihqB+tX4m9aSfivcmvLNkWFDaCmdYY7Mr+BA6g4CMKltyXLDD+elwaJTrjyRf+V/rz2bo/YoHFdhrBibVCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:41.289709Z","signed_message":"canonical_sha256_bytes"},"source_id":"1206.6300","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:df467df10127ca315b68f0c59899e3c60f93a343683ceca897a41fbb2cff7bea","sha256:6403cb0e7ff95a21195dff4a05bef8b0163ee5c35e1ea7738bb7508cdefb1b3c"],"state_sha256":"2e94aae7e1c34cfbaebeba24ff3f0277c564e88e3269951a85355e0ad1ae71a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i2LxptL5+4AJMOgnLm2gA3MkhwSxNhvLI0gxApWkKa/4UWNklvpJbq6jzwf/eiLxUZWrlpAnkjD5T81CPb9eCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T23:02:02.914830Z","bundle_sha256":"1a7529b64aae052039385e18d437b16b8652fb483e35c10aef6f5454da2c1f4b"}}