{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:DNKPROMLBB7U6A4FWYXNGSZY6V","short_pith_number":"pith:DNKPROML","canonical_record":{"source":{"id":"1010.2507","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-12T20:27:49Z","cross_cats_sorted":[],"title_canon_sha256":"bccc619bce324f646362e4d835fc33ed559571ad26e3dd328a80b7d0a7b8e6f4","abstract_canon_sha256":"32f77b9608d0a8015fcc53d3da5cee256c4303f6657011217aa7a96d3de094b0"},"schema_version":"1.0"},"canonical_sha256":"1b54f8b98b087f4f0385b62ed34b38f55aa2570f898383d31fb77e0b921e1e35","source":{"kind":"arxiv","id":"1010.2507","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.2507","created_at":"2026-05-18T04:23:13Z"},{"alias_kind":"arxiv_version","alias_value":"1010.2507v3","created_at":"2026-05-18T04:23:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.2507","created_at":"2026-05-18T04:23:13Z"},{"alias_kind":"pith_short_12","alias_value":"DNKPROMLBB7U","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DNKPROMLBB7U6A4F","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DNKPROML","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:DNKPROMLBB7U6A4FWYXNGSZY6V","target":"record","payload":{"canonical_record":{"source":{"id":"1010.2507","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-12T20:27:49Z","cross_cats_sorted":[],"title_canon_sha256":"bccc619bce324f646362e4d835fc33ed559571ad26e3dd328a80b7d0a7b8e6f4","abstract_canon_sha256":"32f77b9608d0a8015fcc53d3da5cee256c4303f6657011217aa7a96d3de094b0"},"schema_version":"1.0"},"canonical_sha256":"1b54f8b98b087f4f0385b62ed34b38f55aa2570f898383d31fb77e0b921e1e35","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:23:13.088566Z","signature_b64":"2He0Mcn6hoXli+T/yf/8fKkgECYHujdvR6ywlOPs/JyCCaJ6hmiJVrmUxTRBbgfR6i7B+BQbBGR6EPyoaZMPBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b54f8b98b087f4f0385b62ed34b38f55aa2570f898383d31fb77e0b921e1e35","last_reissued_at":"2026-05-18T04:23:13.088031Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:23:13.088031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.2507","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":"2026-05-18T04:23:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V8SNmNA920/n5ORA8+nd58upa57ZYrt6+imH0wH9wDHUwV7/hQuFhedCHpyABHvmV0285HpRWAdS8rETsB0YAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:52:19.669581Z"},"content_sha256":"d0e16d1405e7eb5b230f34da7c38e20a468d392cb5ea0224ea85b26adad2b480","schema_version":"1.0","event_id":"sha256:d0e16d1405e7eb5b230f34da7c38e20a468d392cb5ea0224ea85b26adad2b480"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:DNKPROMLBB7U6A4FWYXNGSZY6V","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chemical abundances in metal-poor giants: limitations imposed by the use of classical 1D stellar atmosphere models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Ku\\v{c}inskas, D. Prakapavi\\v{c}ius, E. Caffau, H.-G. Ludwig, J. Klevas, V. Dobrovolskas","submitted_at":"2010-10-12T20:27:49Z","abstract_excerpt":"In this work we have used 3D hydrodynamical (CO5BOLD) and 1D hydrostatic (LHD) stellar atmosphere models to study the importance of convection and horizontal temperature inhomogeneities in stellar abundance work related to late-type giants. We have found that for a number of key elements, such as Na, Mg, Si, Ca, Ti, Fe, Ni, Zn, Ba, Eu, differences in abundances predicted by 3D and 1D models are typically minor (< 0.1 dex) at solar metallicity. However, at [M/H] = -3 they become larger and reach to -0.5...-0.8 dex. In case of neutral atoms and fixed metallicity, the largest abundance difference"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.2507","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":"2026-05-18T04:23:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"48HJsVimsxUIzdT6MSXZRTx8hyhHbZs2EoJ9Er70hojTejM7/E/4NQTk5bVtb84e0CJ9FYJEvWgDVnKWVZLbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T13:52:19.669929Z"},"content_sha256":"f2f29823ebe05f9f84c95630ee6af840d307dab1ce649f699cc281a26815e02f","schema_version":"1.0","event_id":"sha256:f2f29823ebe05f9f84c95630ee6af840d307dab1ce649f699cc281a26815e02f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DNKPROMLBB7U6A4FWYXNGSZY6V/bundle.json","state_url":"https://pith.science/pith/DNKPROMLBB7U6A4FWYXNGSZY6V/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DNKPROMLBB7U6A4FWYXNGSZY6V/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":"2026-06-01T13:52:19Z","links":{"resolver":"https://pith.science/pith/DNKPROMLBB7U6A4FWYXNGSZY6V","bundle":"https://pith.science/pith/DNKPROMLBB7U6A4FWYXNGSZY6V/bundle.json","state":"https://pith.science/pith/DNKPROMLBB7U6A4FWYXNGSZY6V/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DNKPROMLBB7U6A4FWYXNGSZY6V/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DNKPROMLBB7U6A4FWYXNGSZY6V","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":"32f77b9608d0a8015fcc53d3da5cee256c4303f6657011217aa7a96d3de094b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-12T20:27:49Z","title_canon_sha256":"bccc619bce324f646362e4d835fc33ed559571ad26e3dd328a80b7d0a7b8e6f4"},"schema_version":"1.0","source":{"id":"1010.2507","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.2507","created_at":"2026-05-18T04:23:13Z"},{"alias_kind":"arxiv_version","alias_value":"1010.2507v3","created_at":"2026-05-18T04:23:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.2507","created_at":"2026-05-18T04:23:13Z"},{"alias_kind":"pith_short_12","alias_value":"DNKPROMLBB7U","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DNKPROMLBB7U6A4F","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DNKPROML","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:f2f29823ebe05f9f84c95630ee6af840d307dab1ce649f699cc281a26815e02f","target":"graph","created_at":"2026-05-18T04:23:13Z","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"},"paper":{"abstract_excerpt":"In this work we have used 3D hydrodynamical (CO5BOLD) and 1D hydrostatic (LHD) stellar atmosphere models to study the importance of convection and horizontal temperature inhomogeneities in stellar abundance work related to late-type giants. We have found that for a number of key elements, such as Na, Mg, Si, Ca, Ti, Fe, Ni, Zn, Ba, Eu, differences in abundances predicted by 3D and 1D models are typically minor (< 0.1 dex) at solar metallicity. However, at [M/H] = -3 they become larger and reach to -0.5...-0.8 dex. In case of neutral atoms and fixed metallicity, the largest abundance difference","authors_text":"A. Ku\\v{c}inskas, D. Prakapavi\\v{c}ius, E. Caffau, H.-G. Ludwig, J. Klevas, V. Dobrovolskas","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-12T20:27:49Z","title":"Chemical abundances in metal-poor giants: limitations imposed by the use of classical 1D stellar atmosphere models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.2507","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:d0e16d1405e7eb5b230f34da7c38e20a468d392cb5ea0224ea85b26adad2b480","target":"record","created_at":"2026-05-18T04:23:13Z","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":"32f77b9608d0a8015fcc53d3da5cee256c4303f6657011217aa7a96d3de094b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-10-12T20:27:49Z","title_canon_sha256":"bccc619bce324f646362e4d835fc33ed559571ad26e3dd328a80b7d0a7b8e6f4"},"schema_version":"1.0","source":{"id":"1010.2507","kind":"arxiv","version":3}},"canonical_sha256":"1b54f8b98b087f4f0385b62ed34b38f55aa2570f898383d31fb77e0b921e1e35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1b54f8b98b087f4f0385b62ed34b38f55aa2570f898383d31fb77e0b921e1e35","first_computed_at":"2026-05-18T04:23:13.088031Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:23:13.088031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2He0Mcn6hoXli+T/yf/8fKkgECYHujdvR6ywlOPs/JyCCaJ6hmiJVrmUxTRBbgfR6i7B+BQbBGR6EPyoaZMPBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:23:13.088566Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.2507","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0e16d1405e7eb5b230f34da7c38e20a468d392cb5ea0224ea85b26adad2b480","sha256:f2f29823ebe05f9f84c95630ee6af840d307dab1ce649f699cc281a26815e02f"],"state_sha256":"ae2d5fc53a15f7714a555fe023f6274a1d43e0052c8ba37e1053eacd17b484b7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"I05mPTl5U9Nxmo7j5+9h1GXm/jTVmVvRk8HdSXJJ+Fvk1EoYI4ZBoHMajaUhZojBSZABjf0JS2a+OCS4ezSXBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T13:52:19.671882Z","bundle_sha256":"cecf4cdcebc898b791b7f5dd24ed081bfe53902acaf7e028b9822f37cfada8ca"}}