{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:NOCUAAYYKCEZT2DGKUXCGM7R5R","short_pith_number":"pith:NOCUAAYY","canonical_record":{"source":{"id":"1702.03323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-10T20:51:24Z","cross_cats_sorted":[],"title_canon_sha256":"1ca09f245d7dba2343dcb020aadd924cdd22be4df4b7efc6365eafcd6ed1d6b4","abstract_canon_sha256":"78946f919714a05cfe7c78547ae1efe2526e20e5f4ea2aeb7c515f34d80db83b"},"schema_version":"1.0"},"canonical_sha256":"6b85400318508999e866552e2333f1ec5b0f267a15288547f747891d6e34aad2","source":{"kind":"arxiv","id":"1702.03323","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.03323","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"1702.03323v1","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03323","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"NOCUAAYYKCEZ","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"NOCUAAYYKCEZT2DG","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"NOCUAAYY","created_at":"2026-05-18T12:31:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:NOCUAAYYKCEZT2DGKUXCGM7R5R","target":"record","payload":{"canonical_record":{"source":{"id":"1702.03323","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-10T20:51:24Z","cross_cats_sorted":[],"title_canon_sha256":"1ca09f245d7dba2343dcb020aadd924cdd22be4df4b7efc6365eafcd6ed1d6b4","abstract_canon_sha256":"78946f919714a05cfe7c78547ae1efe2526e20e5f4ea2aeb7c515f34d80db83b"},"schema_version":"1.0"},"canonical_sha256":"6b85400318508999e866552e2333f1ec5b0f267a15288547f747891d6e34aad2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:46:37.588298Z","signature_b64":"OShni1/mLICY6T9Q9m361iuV5B5cen+LKzpYt4bURZyn3uDp9xgkYtsVC6WmCR9dT7LP6DoPtSmsB1i27g0IDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b85400318508999e866552e2333f1ec5b0f267a15288547f747891d6e34aad2","last_reissued_at":"2026-05-18T00:46:37.587736Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:46:37.587736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.03323","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":"2026-05-18T00:46:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N4zLSDB63jUmTjVMP9SzCK4OZV0BLuwwvW9HTN30UmNgyQ7zi7VxKYNtfhj85GPdxk6dsC16TrGRliqF/cFaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:49:20.231637Z"},"content_sha256":"cea1b4c2364f42a8deb3f828d7bd5c2371ceaaa36a613b18407196b7aa51890a","schema_version":"1.0","event_id":"sha256:cea1b4c2364f42a8deb3f828d7bd5c2371ceaaa36a613b18407196b7aa51890a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:NOCUAAYYKCEZT2DGKUXCGM7R5R","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Dependence of the Mass-Metallicity Relation on Large Scale Environment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"H. Jabran Zahid, Ho Seong Hwang, Margaret J. Geller, Po-Feng Wu","submitted_at":"2017-02-10T20:51:24Z","abstract_excerpt":"We examine the relation between gas-phase oxygen abundance and stellar mass---the MZ relation---as a function of the large scale galaxy environment parameterized by the local density. The dependence of the MZ relation on the environment is small. The metallicity where the MZ relation saturates and the slope of the MZ relation are both independent of the local density. The impact of the large scale environment is completely parameterized by the anti-correlation between local density and the turnover stellar mass where the MZ relation begins to saturate. Analytical modeling suggests that the ant"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03323","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":"2026-05-18T00:46:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cNfQPkwgMEzybbtX7OkkyqJNOpTR8S8Q4fFjagZDRn2O1EGR2QzUTDKLPhRc9BsLVRA9BuFCurM/FlRDnXSmAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T18:49:20.232349Z"},"content_sha256":"e7c73fdf750290b9c390a0a81cfeb43e11924661acc24d6eef7a70181024d78a","schema_version":"1.0","event_id":"sha256:e7c73fdf750290b9c390a0a81cfeb43e11924661acc24d6eef7a70181024d78a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R/bundle.json","state_url":"https://pith.science/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R/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":"2026-06-07T18:49:20Z","links":{"resolver":"https://pith.science/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R","bundle":"https://pith.science/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R/bundle.json","state":"https://pith.science/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NOCUAAYYKCEZT2DGKUXCGM7R5R/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:NOCUAAYYKCEZT2DGKUXCGM7R5R","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":"78946f919714a05cfe7c78547ae1efe2526e20e5f4ea2aeb7c515f34d80db83b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-10T20:51:24Z","title_canon_sha256":"1ca09f245d7dba2343dcb020aadd924cdd22be4df4b7efc6365eafcd6ed1d6b4"},"schema_version":"1.0","source":{"id":"1702.03323","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.03323","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"arxiv_version","alias_value":"1702.03323v1","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.03323","created_at":"2026-05-18T00:46:37Z"},{"alias_kind":"pith_short_12","alias_value":"NOCUAAYYKCEZ","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_16","alias_value":"NOCUAAYYKCEZT2DG","created_at":"2026-05-18T12:31:34Z"},{"alias_kind":"pith_short_8","alias_value":"NOCUAAYY","created_at":"2026-05-18T12:31:34Z"}],"graph_snapshots":[{"event_id":"sha256:e7c73fdf750290b9c390a0a81cfeb43e11924661acc24d6eef7a70181024d78a","target":"graph","created_at":"2026-05-18T00:46:37Z","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 examine the relation between gas-phase oxygen abundance and stellar mass---the MZ relation---as a function of the large scale galaxy environment parameterized by the local density. The dependence of the MZ relation on the environment is small. The metallicity where the MZ relation saturates and the slope of the MZ relation are both independent of the local density. The impact of the large scale environment is completely parameterized by the anti-correlation between local density and the turnover stellar mass where the MZ relation begins to saturate. Analytical modeling suggests that the ant","authors_text":"H. Jabran Zahid, Ho Seong Hwang, Margaret J. Geller, Po-Feng Wu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-10T20:51:24Z","title":"The Dependence of the Mass-Metallicity Relation on Large Scale Environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.03323","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:cea1b4c2364f42a8deb3f828d7bd5c2371ceaaa36a613b18407196b7aa51890a","target":"record","created_at":"2026-05-18T00:46:37Z","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":"78946f919714a05cfe7c78547ae1efe2526e20e5f4ea2aeb7c515f34d80db83b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-10T20:51:24Z","title_canon_sha256":"1ca09f245d7dba2343dcb020aadd924cdd22be4df4b7efc6365eafcd6ed1d6b4"},"schema_version":"1.0","source":{"id":"1702.03323","kind":"arxiv","version":1}},"canonical_sha256":"6b85400318508999e866552e2333f1ec5b0f267a15288547f747891d6e34aad2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b85400318508999e866552e2333f1ec5b0f267a15288547f747891d6e34aad2","first_computed_at":"2026-05-18T00:46:37.587736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:46:37.587736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OShni1/mLICY6T9Q9m361iuV5B5cen+LKzpYt4bURZyn3uDp9xgkYtsVC6WmCR9dT7LP6DoPtSmsB1i27g0IDw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:46:37.588298Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.03323","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cea1b4c2364f42a8deb3f828d7bd5c2371ceaaa36a613b18407196b7aa51890a","sha256:e7c73fdf750290b9c390a0a81cfeb43e11924661acc24d6eef7a70181024d78a"],"state_sha256":"c5517a53758077548bdca8aadc52d1ec4f23d69e872abc5e45383f35cf20be99"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A2ep5dLS7wORsEJbLY0dDTAYP0ZbIlq8JG26blUr1GBNQWoO3GwUGzJvbop59imLQgy/+5F/SC82X5AI978ZDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T18:49:20.236044Z","bundle_sha256":"72d794e34fdd23aee6d2dc7d9370d951757fd872b0cb1d551ccf9f5cf268e767"}}