{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:ENA2VFY4PNOWOUCGPWGGDMQWRC","short_pith_number":"pith:ENA2VFY4","canonical_record":{"source":{"id":"1609.09071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-28T20:00:01Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"caaecf7995ff2ac3f099dc69c1f7e7c8fe79352cac953bc09fc67002f2f7920d","abstract_canon_sha256":"04f354988a600907e2d9554eea69ee342e72c1ff8a7dca0d733737e6dbeed524"},"schema_version":"1.0"},"canonical_sha256":"2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311","source":{"kind":"arxiv","id":"1609.09071","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.09071","created_at":"2026-05-18T01:03:40Z"},{"alias_kind":"arxiv_version","alias_value":"1609.09071v1","created_at":"2026-05-18T01:03:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.09071","created_at":"2026-05-18T01:03:40Z"},{"alias_kind":"pith_short_12","alias_value":"ENA2VFY4PNOW","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"ENA2VFY4PNOWOUCG","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"ENA2VFY4","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:ENA2VFY4PNOWOUCGPWGGDMQWRC","target":"record","payload":{"canonical_record":{"source":{"id":"1609.09071","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-28T20:00:01Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"caaecf7995ff2ac3f099dc69c1f7e7c8fe79352cac953bc09fc67002f2f7920d","abstract_canon_sha256":"04f354988a600907e2d9554eea69ee342e72c1ff8a7dca0d733737e6dbeed524"},"schema_version":"1.0"},"canonical_sha256":"2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:03:40.248021Z","signature_b64":"P08xJkW5ndIQRtDdY93PTrNCq2c1OiSMbF28qjXKiBbYd5C4FSZWMcxJBhU7CcHUX+cOtGjOKi2C8OBcvcOhBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311","last_reissued_at":"2026-05-18T01:03:40.247468Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:03:40.247468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.09071","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":"2026-05-18T01:03:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y7Mtgz+9jGBshPk9inHZ66zVk/RAwKFqokktDOu74eSVWMd11n+Pa0rYfi3vzc3OeqzUyvohI5iPLDnmUSSwBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:55:29.608878Z"},"content_sha256":"8ce97275717b7085ef53469124ab0438cd1f9f80932a9425246c229ffb21f453","schema_version":"1.0","event_id":"sha256:8ce97275717b7085ef53469124ab0438cd1f9f80932a9425246c229ffb21f453"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:ENA2VFY4PNOWOUCGPWGGDMQWRC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How much can we trust high-resolution spectroscopic stellar chemical abundances?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.SR","authors_text":"A. R. Casey, H. M. Tabernero, I. Ram\\'irez, J. Mel\\'endez, L. Casamiquela, P. Jofr\\'e, S. Blanco-Cuaresma, S. S. Bhat, T. Masseron, T. Nordlander, U. Heiter","submitted_at":"2016-09-28T20:00:01Z","abstract_excerpt":"To study stellar populations, it is common to combine chemical abundances from different spectroscopic surveys/studies where different setups were used. These inhomogeneities can lead us to inaccurate scientific conclusions. In this work, we studied one aspect of the problem: When deriving chemical abundances from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes?"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.09071","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":"2026-05-18T01:03:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"77lFQWci5i6U4ejrWQqWJAhu8wYRa7QekztVrmdR4DWAcGABkoY+H2a39WnGXzTNZEKK1Qo87Y6VizOV5xmUBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T07:55:29.609699Z"},"content_sha256":"3cb72334864f51460efd0faef463702b680d60e1d88516ec564f41f8faebac5f","schema_version":"1.0","event_id":"sha256:3cb72334864f51460efd0faef463702b680d60e1d88516ec564f41f8faebac5f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC/bundle.json","state_url":"https://pith.science/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC/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":"2026-08-05T07:55:30Z","links":{"resolver":"https://pith.science/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC","bundle":"https://pith.science/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC/bundle.json","state":"https://pith.science/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ENA2VFY4PNOWOUCGPWGGDMQWRC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ENA2VFY4PNOWOUCGPWGGDMQWRC","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":"04f354988a600907e2d9554eea69ee342e72c1ff8a7dca0d733737e6dbeed524","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-28T20:00:01Z","title_canon_sha256":"caaecf7995ff2ac3f099dc69c1f7e7c8fe79352cac953bc09fc67002f2f7920d"},"schema_version":"1.0","source":{"id":"1609.09071","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.09071","created_at":"2026-05-18T01:03:40Z"},{"alias_kind":"arxiv_version","alias_value":"1609.09071v1","created_at":"2026-05-18T01:03:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.09071","created_at":"2026-05-18T01:03:40Z"},{"alias_kind":"pith_short_12","alias_value":"ENA2VFY4PNOW","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"ENA2VFY4PNOWOUCG","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"ENA2VFY4","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:3cb72334864f51460efd0faef463702b680d60e1d88516ec564f41f8faebac5f","target":"graph","created_at":"2026-05-18T01:03:40Z","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":"To study stellar populations, it is common to combine chemical abundances from different spectroscopic surveys/studies where different setups were used. These inhomogeneities can lead us to inaccurate scientific conclusions. In this work, we studied one aspect of the problem: When deriving chemical abundances from high-resolution stellar spectra, what differences originate from the use of different radiative transfer codes?","authors_text":"A. R. Casey, H. M. Tabernero, I. Ram\\'irez, J. Mel\\'endez, L. Casamiquela, P. Jofr\\'e, S. Blanco-Cuaresma, S. S. Bhat, T. Masseron, T. Nordlander, U. Heiter","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-28T20:00:01Z","title":"How much can we trust high-resolution spectroscopic stellar chemical abundances?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.09071","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":"sha256:8ce97275717b7085ef53469124ab0438cd1f9f80932a9425246c229ffb21f453","target":"record","created_at":"2026-05-18T01:03:40Z","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":"04f354988a600907e2d9554eea69ee342e72c1ff8a7dca0d733737e6dbeed524","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-28T20:00:01Z","title_canon_sha256":"caaecf7995ff2ac3f099dc69c1f7e7c8fe79352cac953bc09fc67002f2f7920d"},"schema_version":"1.0","source":{"id":"1609.09071","kind":"arxiv","version":1}},"canonical_sha256":"2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2341aa971c7b5d6750467d8c61b216889b551368053cfa38736b6bff17c40311","first_computed_at":"2026-05-18T01:03:40.247468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:03:40.247468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P08xJkW5ndIQRtDdY93PTrNCq2c1OiSMbF28qjXKiBbYd5C4FSZWMcxJBhU7CcHUX+cOtGjOKi2C8OBcvcOhBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:03:40.248021Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.09071","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ce97275717b7085ef53469124ab0438cd1f9f80932a9425246c229ffb21f453","sha256:3cb72334864f51460efd0faef463702b680d60e1d88516ec564f41f8faebac5f"],"state_sha256":"ed88cf9387ab9f6a1745f5b2ff61c80ca4a9c2e94bc56bedc8b96abadc8fa5e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KVC5KJxp/u3sDND0mfZzTnOSzgb5rt408yn3DC8/ctpDHBfZOUQT9PZVXEu0c7iYTBONYbmGhP2GQ/JUOiQiBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T07:55:30.404127Z","bundle_sha256":"4e6a67bae485bee300122cdda2014d56b08de5e144623e804fae36785f6760f2"}}