{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:4XSBZYXQKI7M5USFYYPVMA3JXT","short_pith_number":"pith:4XSBZYXQ","canonical_record":{"source":{"id":"astro-ph/0512290","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-12T13:23:01Z","cross_cats_sorted":[],"title_canon_sha256":"22b9d6e09f28e891061abd3a749f036e221a24e15a262c2a91fadc31285ab5bd","abstract_canon_sha256":"93b58afba1e16e95cd218ee65885ba764182add49d14660c132c17cf1915c685"},"schema_version":"1.0"},"canonical_sha256":"e5e41ce2f0523eced245c61f560369bce959d18e552bcb5310b48852e2a2ab2e","source":{"kind":"arxiv","id":"astro-ph/0512290","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0512290","created_at":"2026-05-18T01:08:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0512290v1","created_at":"2026-05-18T01:08:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0512290","created_at":"2026-05-18T01:08:58Z"},{"alias_kind":"pith_short_12","alias_value":"4XSBZYXQKI7M","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"4XSBZYXQKI7M5USF","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"4XSBZYXQ","created_at":"2026-05-18T12:25:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:4XSBZYXQKI7M5USFYYPVMA3JXT","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0512290","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-12T13:23:01Z","cross_cats_sorted":[],"title_canon_sha256":"22b9d6e09f28e891061abd3a749f036e221a24e15a262c2a91fadc31285ab5bd","abstract_canon_sha256":"93b58afba1e16e95cd218ee65885ba764182add49d14660c132c17cf1915c685"},"schema_version":"1.0"},"canonical_sha256":"e5e41ce2f0523eced245c61f560369bce959d18e552bcb5310b48852e2a2ab2e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:08:58.780459Z","signature_b64":"yEGvkrjeOwWL3d09YXyOkcb2Yg7vhVJGe7f8C/rXC765zbpOqyKV+lTpRLQEuTTJtowBxG7kh+IP9COnFrmUAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e5e41ce2f0523eced245c61f560369bce959d18e552bcb5310b48852e2a2ab2e","last_reissued_at":"2026-05-18T01:08:58.779831Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:08:58.779831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0512290","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":"2026-05-18T01:08:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GPMWzfitB6mp3Qtf9T14qmFhg/fQ9N7AblOlOEtG73Z8k8jXYbtEPayNmho2Gg82g04AhAnjSOTU+XpYfjQoCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:31:50.352960Z"},"content_sha256":"82e3f2ad3057b365de3edd2a2a81b312c72a9ce3374c405b9e7c77a74924025b","schema_version":"1.0","event_id":"sha256:82e3f2ad3057b365de3edd2a2a81b312c72a9ce3374c405b9e7c77a74924025b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:4XSBZYXQKI7M5USFYYPVMA3JXT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Oxygen abundances in metal-poor subgiants as determined from [O I], O I and OH lines","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.E. Garc\\'ia P\\'erez, B. Gustafsson, F. Primas, M. Asplund, P.E. Nissen","submitted_at":"2005-12-12T13:23:01Z","abstract_excerpt":"The debate on the oxygen abundances of metal-poor stars has its origin in contradictory results obtained using different abundance indicators. To achieve a better understanding of the problem we have acquired high quality spectra with the Ultraviolet and Visual Echelle Spectrograph at VLT, with a signal-to-noise of the order of 100 in the near ultraviolet and 500 in the optical and near infrared wavelength range. Three different oxygen abundance indicators, OH ultraviolet lines around 310.0 nm, the [OI] line at 630.03 nm and the OI lines at 777.1-5 nm were observed in the spectra of 13 metal-p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0512290","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":"2026-05-18T01:08:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"psdzlnm5K6zvLaRymNWv21JdDO89Srhb3HRJbc/leUi4V9J0Q96KrkmN7EtOwnrjKOBW9uz98WPE6YWKxSKhAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:31:50.353610Z"},"content_sha256":"1094889532fbfa3e3750ce60f314599bc0bbbfd6908b3d4e577dc12aa35f9454","schema_version":"1.0","event_id":"sha256:1094889532fbfa3e3750ce60f314599bc0bbbfd6908b3d4e577dc12aa35f9454"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4XSBZYXQKI7M5USFYYPVMA3JXT/bundle.json","state_url":"https://pith.science/pith/4XSBZYXQKI7M5USFYYPVMA3JXT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4XSBZYXQKI7M5USFYYPVMA3JXT/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":"2026-05-28T16:31:50Z","links":{"resolver":"https://pith.science/pith/4XSBZYXQKI7M5USFYYPVMA3JXT","bundle":"https://pith.science/pith/4XSBZYXQKI7M5USFYYPVMA3JXT/bundle.json","state":"https://pith.science/pith/4XSBZYXQKI7M5USFYYPVMA3JXT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4XSBZYXQKI7M5USFYYPVMA3JXT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:4XSBZYXQKI7M5USFYYPVMA3JXT","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":"93b58afba1e16e95cd218ee65885ba764182add49d14660c132c17cf1915c685","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-12T13:23:01Z","title_canon_sha256":"22b9d6e09f28e891061abd3a749f036e221a24e15a262c2a91fadc31285ab5bd"},"schema_version":"1.0","source":{"id":"astro-ph/0512290","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0512290","created_at":"2026-05-18T01:08:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0512290v1","created_at":"2026-05-18T01:08:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0512290","created_at":"2026-05-18T01:08:58Z"},{"alias_kind":"pith_short_12","alias_value":"4XSBZYXQKI7M","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_16","alias_value":"4XSBZYXQKI7M5USF","created_at":"2026-05-18T12:25:52Z"},{"alias_kind":"pith_short_8","alias_value":"4XSBZYXQ","created_at":"2026-05-18T12:25:52Z"}],"graph_snapshots":[{"event_id":"sha256:1094889532fbfa3e3750ce60f314599bc0bbbfd6908b3d4e577dc12aa35f9454","target":"graph","created_at":"2026-05-18T01:08:58Z","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 debate on the oxygen abundances of metal-poor stars has its origin in contradictory results obtained using different abundance indicators. To achieve a better understanding of the problem we have acquired high quality spectra with the Ultraviolet and Visual Echelle Spectrograph at VLT, with a signal-to-noise of the order of 100 in the near ultraviolet and 500 in the optical and near infrared wavelength range. Three different oxygen abundance indicators, OH ultraviolet lines around 310.0 nm, the [OI] line at 630.03 nm and the OI lines at 777.1-5 nm were observed in the spectra of 13 metal-p","authors_text":"A.E. Garc\\'ia P\\'erez, B. Gustafsson, F. Primas, M. Asplund, P.E. Nissen","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-12-12T13:23:01Z","title":"Oxygen abundances in metal-poor subgiants as determined from [O I], O I and OH lines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0512290","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":"sha256:82e3f2ad3057b365de3edd2a2a81b312c72a9ce3374c405b9e7c77a74924025b","target":"record","created_at":"2026-05-18T01:08:58Z","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":"93b58afba1e16e95cd218ee65885ba764182add49d14660c132c17cf1915c685","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-12-12T13:23:01Z","title_canon_sha256":"22b9d6e09f28e891061abd3a749f036e221a24e15a262c2a91fadc31285ab5bd"},"schema_version":"1.0","source":{"id":"astro-ph/0512290","kind":"arxiv","version":1}},"canonical_sha256":"e5e41ce2f0523eced245c61f560369bce959d18e552bcb5310b48852e2a2ab2e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e5e41ce2f0523eced245c61f560369bce959d18e552bcb5310b48852e2a2ab2e","first_computed_at":"2026-05-18T01:08:58.779831Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:08:58.779831Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yEGvkrjeOwWL3d09YXyOkcb2Yg7vhVJGe7f8C/rXC765zbpOqyKV+lTpRLQEuTTJtowBxG7kh+IP9COnFrmUAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:08:58.780459Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0512290","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:82e3f2ad3057b365de3edd2a2a81b312c72a9ce3374c405b9e7c77a74924025b","sha256:1094889532fbfa3e3750ce60f314599bc0bbbfd6908b3d4e577dc12aa35f9454"],"state_sha256":"168e78b7add8e92c35302b87f0f5a7eecd2b175818cdfcd92b0da3f4760a885d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uXyGYxJdBaJuhfzrw8e132OjK2nGlNkC4qRbAVlIin4lpXV22h4uzJT6DjTjMldHqx2bRe3Azt8/OwToqm1WCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T16:31:50.357105Z","bundle_sha256":"95658710ddead638273e1cc4e9bc65ae0e3be21cdbbaa9ecaecfe3d90f3ff16c"}}