{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:CXGV7JO4UEIXEILHIAL2YPJOPZ","short_pith_number":"pith:CXGV7JO4","canonical_record":{"source":{"id":"0803.1828","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-12T19:46:54Z","cross_cats_sorted":[],"title_canon_sha256":"98aef762ed06e610d7593d771dcfea37c1cbcff1149426c4bae33683e30e8f31","abstract_canon_sha256":"0ccb982dd729874d8a134a12385f96bfd986efd1a4df8953ff810e00f637af31"},"schema_version":"1.0"},"canonical_sha256":"15cd5fa5dca1117221674017ac3d2e7e799b4d91b6099d9cac9a875bb2bf9438","source":{"kind":"arxiv","id":"0803.1828","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.1828","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"arxiv_version","alias_value":"0803.1828v1","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.1828","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"pith_short_12","alias_value":"CXGV7JO4UEIX","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"pith_short_16","alias_value":"CXGV7JO4UEIXEILH","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"pith_short_8","alias_value":"CXGV7JO4","created_at":"2026-07-04T15:12:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:CXGV7JO4UEIXEILHIAL2YPJOPZ","target":"record","payload":{"canonical_record":{"source":{"id":"0803.1828","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-12T19:46:54Z","cross_cats_sorted":[],"title_canon_sha256":"98aef762ed06e610d7593d771dcfea37c1cbcff1149426c4bae33683e30e8f31","abstract_canon_sha256":"0ccb982dd729874d8a134a12385f96bfd986efd1a4df8953ff810e00f637af31"},"schema_version":"1.0"},"canonical_sha256":"15cd5fa5dca1117221674017ac3d2e7e799b4d91b6099d9cac9a875bb2bf9438","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:12:13.479977Z","signature_b64":"2+1UxPGFAuolsBCTGfafU49iS5GomJbH/fN5kEHefA4UobNozdjJ/QqVpuoeJAOOhEHsTf0Om2+4sbCipnkbAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15cd5fa5dca1117221674017ac3d2e7e799b4d91b6099d9cac9a875bb2bf9438","last_reissued_at":"2026-07-04T15:12:13.479513Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:12:13.479513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0803.1828","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":"2026-07-04T15:12:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Zt1xb9IKyMZ67wgkPb7ENaYyImC/I9v4n9lYCN3jguyN8UtdNJLfR7mQdMflzCFHyREMBv0oT1Y+FSSGsXnRCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T22:28:39.761912Z"},"content_sha256":"95b3ba12c0bf9e10e905a892b2fba47852da14a824c30827939d41e2507434ce","schema_version":"1.0","event_id":"sha256:95b3ba12c0bf9e10e905a892b2fba47852da14a824c30827939d41e2507434ce"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:CXGV7JO4UEIXEILHIAL2YPJOPZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chemical Abundances and Dust in Planetary Nebulae in the Galactic Bulge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"G. C. Sloan, J. Bernard-Salas, J. R. Houck, S. Gutenkunst, S. R. Pottasch","submitted_at":"2008-03-12T19:46:54Z","abstract_excerpt":"We present mid-infrared Spitzer spectra of eleven planetary nebulae in the Galactic Bulge. We derive argon, neon, sulfur, and oxygen abundances for them using mainly infrared line fluxes combined with some optical line fluxes from the literature. Due to the high extinction toward the Bulge, the infrared spectra allow us to determine abundances for certain elements more accurately that previously possible with optical data alone. Abundances of argon and sulfur (and in most cases neon and oxygen) in planetary nebulae in the Bulge give the abundances of the interstellar medium at the time their p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.1828","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/0803.1828/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-04T15:12:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kCIAmzbXoEuDTxjk9tQIlFM3mv691ZJwA82ga0MpknSGBJUN7obYrdjgcaeBg68Y4lSYOIyHAPQnGD/9fhNkDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T22:28:39.762290Z"},"content_sha256":"b26d24e2e37495d0ccc8a469743e4d7d8af3b25e0655286406888c660e026f3b","schema_version":"1.0","event_id":"sha256:b26d24e2e37495d0ccc8a469743e4d7d8af3b25e0655286406888c660e026f3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ/bundle.json","state_url":"https://pith.science/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ/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":"2026-07-08T22:28:39Z","links":{"resolver":"https://pith.science/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ","bundle":"https://pith.science/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ/bundle.json","state":"https://pith.science/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CXGV7JO4UEIXEILHIAL2YPJOPZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:CXGV7JO4UEIXEILHIAL2YPJOPZ","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":"0ccb982dd729874d8a134a12385f96bfd986efd1a4df8953ff810e00f637af31","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-12T19:46:54Z","title_canon_sha256":"98aef762ed06e610d7593d771dcfea37c1cbcff1149426c4bae33683e30e8f31"},"schema_version":"1.0","source":{"id":"0803.1828","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0803.1828","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"arxiv_version","alias_value":"0803.1828v1","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0803.1828","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"pith_short_12","alias_value":"CXGV7JO4UEIX","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"pith_short_16","alias_value":"CXGV7JO4UEIXEILH","created_at":"2026-07-04T15:12:13Z"},{"alias_kind":"pith_short_8","alias_value":"CXGV7JO4","created_at":"2026-07-04T15:12:13Z"}],"graph_snapshots":[{"event_id":"sha256:b26d24e2e37495d0ccc8a469743e4d7d8af3b25e0655286406888c660e026f3b","target":"graph","created_at":"2026-07-04T15:12:13Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/0803.1828/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present mid-infrared Spitzer spectra of eleven planetary nebulae in the Galactic Bulge. We derive argon, neon, sulfur, and oxygen abundances for them using mainly infrared line fluxes combined with some optical line fluxes from the literature. Due to the high extinction toward the Bulge, the infrared spectra allow us to determine abundances for certain elements more accurately that previously possible with optical data alone. Abundances of argon and sulfur (and in most cases neon and oxygen) in planetary nebulae in the Bulge give the abundances of the interstellar medium at the time their p","authors_text":"G. C. Sloan, J. Bernard-Salas, J. R. Houck, S. Gutenkunst, S. R. Pottasch","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-12T19:46:54Z","title":"Chemical Abundances and Dust in Planetary Nebulae in the Galactic Bulge"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0803.1828","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":"sha256:95b3ba12c0bf9e10e905a892b2fba47852da14a824c30827939d41e2507434ce","target":"record","created_at":"2026-07-04T15:12:13Z","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":"0ccb982dd729874d8a134a12385f96bfd986efd1a4df8953ff810e00f637af31","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-03-12T19:46:54Z","title_canon_sha256":"98aef762ed06e610d7593d771dcfea37c1cbcff1149426c4bae33683e30e8f31"},"schema_version":"1.0","source":{"id":"0803.1828","kind":"arxiv","version":1}},"canonical_sha256":"15cd5fa5dca1117221674017ac3d2e7e799b4d91b6099d9cac9a875bb2bf9438","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15cd5fa5dca1117221674017ac3d2e7e799b4d91b6099d9cac9a875bb2bf9438","first_computed_at":"2026-07-04T15:12:13.479513Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:12:13.479513Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2+1UxPGFAuolsBCTGfafU49iS5GomJbH/fN5kEHefA4UobNozdjJ/QqVpuoeJAOOhEHsTf0Om2+4sbCipnkbAw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:12:13.479977Z","signed_message":"canonical_sha256_bytes"},"source_id":"0803.1828","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:95b3ba12c0bf9e10e905a892b2fba47852da14a824c30827939d41e2507434ce","sha256:b26d24e2e37495d0ccc8a469743e4d7d8af3b25e0655286406888c660e026f3b"],"state_sha256":"d305d30cdc5793ed9d5feefdb0c66f42e7cc6d6465b23a5add565f5fa1f7ff00"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OAfpVRi7/t2rwNsUlDUvPLzonCwx3zOo/DZwnDWt/HPzM/j3u4fWH/g7BgbSDnmI3kmCPREK1htUgtUJ6n+dBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T22:28:39.764432Z","bundle_sha256":"916b9143365ddd4cd8d72b7615daeb17193bf88fecefcd99ad0815237ebf4b55"}}