{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:ACMGUONRABVT6OUEMBOCWRLEGR","short_pith_number":"pith:ACMGUONR","canonical_record":{"source":{"id":"0909.2938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-16T07:40:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"382440ce0fb93ebeb113f9410488936de3a4e8189a5bebf62c0b5ee84c9c1d32","abstract_canon_sha256":"ff607ef85d267cd195c6b9b684fc7b29896120cd694363429268f949e77bda7a"},"schema_version":"1.0"},"canonical_sha256":"00986a39b1006b3f3a84605c2b45643442253c2d88b3a1c10dc8fad4ae4b4fe7","source":{"kind":"arxiv","id":"0909.2938","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2938","created_at":"2026-05-18T02:11:47Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2938v1","created_at":"2026-05-18T02:11:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2938","created_at":"2026-05-18T02:11:47Z"},{"alias_kind":"pith_short_12","alias_value":"ACMGUONRABVT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"ACMGUONRABVT6OUE","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"ACMGUONR","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:ACMGUONRABVT6OUEMBOCWRLEGR","target":"record","payload":{"canonical_record":{"source":{"id":"0909.2938","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-16T07:40:59Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"382440ce0fb93ebeb113f9410488936de3a4e8189a5bebf62c0b5ee84c9c1d32","abstract_canon_sha256":"ff607ef85d267cd195c6b9b684fc7b29896120cd694363429268f949e77bda7a"},"schema_version":"1.0"},"canonical_sha256":"00986a39b1006b3f3a84605c2b45643442253c2d88b3a1c10dc8fad4ae4b4fe7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:47.492600Z","signature_b64":"mELli4yAvYZ+PbuGjyddPTeZaZUhxY9fmKe6F2jnoSZqazV4KpSs+tcT4W2Q3hTFEzxr65w5f2BOffTd3rZtCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00986a39b1006b3f3a84605c2b45643442253c2d88b3a1c10dc8fad4ae4b4fe7","last_reissued_at":"2026-05-18T02:11:47.491910Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:47.491910Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.2938","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":"2026-05-18T02:11:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z+v43yKiZ3r1w1ktxjMsI2QLhtv2+ScxaCPIOSBYutx9MIE4Dh+8wOh+wKQygUQy9OyuwDhFMRglphvKS2kYAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:20:15.052884Z"},"content_sha256":"78576e9fd854020321e79fe6de77fa8ca469c16c0009f18da87bbb59fd2310e6","schema_version":"1.0","event_id":"sha256:78576e9fd854020321e79fe6de77fa8ca469c16c0009f18da87bbb59fd2310e6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:ACMGUONRABVT6OUEMBOCWRLEGR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Na-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. Bragaglia, A. Recio-Blanco, E. Carretta, E. Pancino, E. Sabbi, F. Leone, G. Catanzaro, G. Piotto, M. Bellazzini, R. Claudi, R.G. Gratton, S. Lucatello, S. Ortolani, V. D'Orazi, Y. Momany","submitted_at":"2009-09-16T07:40:59Z","abstract_excerpt":"We present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters, derived from the homogeneous analysis of high resolution FLAMES/GIRAFFE spectra. Combining the present data with previous results, we obtained a total sample of 1958 stars in 19 clusters, the largest and most homogeneous database of this kind to date. Our GCs have [Fe/H] from -2.4 to -0.4, with a wide variety of global parameters (morphology of the horizontal branch, mass, concentration, etc). For all clusters we find the Na-O anticorrelation, the classical signature of proton-capture reactions in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2938","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":"2026-05-18T02:11:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"v1cojOv+I54I1wegsxXSLDiw5XhG1QIvmJD8+zyIpwfsKBFap5mPf79bzN/PSi+awJfoLUPg7FvDCvA27yFXDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T01:20:15.053618Z"},"content_sha256":"a68c2adf2748c647c36041e4dac76d924f642327b5bf37f637a467c0eb3ca44a","schema_version":"1.0","event_id":"sha256:a68c2adf2748c647c36041e4dac76d924f642327b5bf37f637a467c0eb3ca44a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ACMGUONRABVT6OUEMBOCWRLEGR/bundle.json","state_url":"https://pith.science/pith/ACMGUONRABVT6OUEMBOCWRLEGR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ACMGUONRABVT6OUEMBOCWRLEGR/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":"2026-05-26T01:20:15Z","links":{"resolver":"https://pith.science/pith/ACMGUONRABVT6OUEMBOCWRLEGR","bundle":"https://pith.science/pith/ACMGUONRABVT6OUEMBOCWRLEGR/bundle.json","state":"https://pith.science/pith/ACMGUONRABVT6OUEMBOCWRLEGR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ACMGUONRABVT6OUEMBOCWRLEGR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:ACMGUONRABVT6OUEMBOCWRLEGR","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":"ff607ef85d267cd195c6b9b684fc7b29896120cd694363429268f949e77bda7a","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-16T07:40:59Z","title_canon_sha256":"382440ce0fb93ebeb113f9410488936de3a4e8189a5bebf62c0b5ee84c9c1d32"},"schema_version":"1.0","source":{"id":"0909.2938","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2938","created_at":"2026-05-18T02:11:47Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2938v1","created_at":"2026-05-18T02:11:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2938","created_at":"2026-05-18T02:11:47Z"},{"alias_kind":"pith_short_12","alias_value":"ACMGUONRABVT","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"ACMGUONRABVT6OUE","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"ACMGUONR","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:a68c2adf2748c647c36041e4dac76d924f642327b5bf37f637a467c0eb3ca44a","target":"graph","created_at":"2026-05-18T02:11:47Z","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 present abundances of Fe, Na, and O for 1409 red giant stars in 15 galactic globular clusters, derived from the homogeneous analysis of high resolution FLAMES/GIRAFFE spectra. Combining the present data with previous results, we obtained a total sample of 1958 stars in 19 clusters, the largest and most homogeneous database of this kind to date. Our GCs have [Fe/H] from -2.4 to -0.4, with a wide variety of global parameters (morphology of the horizontal branch, mass, concentration, etc). For all clusters we find the Na-O anticorrelation, the classical signature of proton-capture reactions in","authors_text":"A. Bragaglia, A. Recio-Blanco, E. Carretta, E. Pancino, E. Sabbi, F. Leone, G. Catanzaro, G. Piotto, M. Bellazzini, R. Claudi, R.G. Gratton, S. Lucatello, S. Ortolani, V. D'Orazi, Y. Momany","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-16T07:40:59Z","title":"Na-O Anticorrelation and HB. VII. The chemical composition of first and second-generation stars in 15 globular clusters from GIRAFFE spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2938","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":"sha256:78576e9fd854020321e79fe6de77fa8ca469c16c0009f18da87bbb59fd2310e6","target":"record","created_at":"2026-05-18T02:11:47Z","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":"ff607ef85d267cd195c6b9b684fc7b29896120cd694363429268f949e77bda7a","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2009-09-16T07:40:59Z","title_canon_sha256":"382440ce0fb93ebeb113f9410488936de3a4e8189a5bebf62c0b5ee84c9c1d32"},"schema_version":"1.0","source":{"id":"0909.2938","kind":"arxiv","version":1}},"canonical_sha256":"00986a39b1006b3f3a84605c2b45643442253c2d88b3a1c10dc8fad4ae4b4fe7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00986a39b1006b3f3a84605c2b45643442253c2d88b3a1c10dc8fad4ae4b4fe7","first_computed_at":"2026-05-18T02:11:47.491910Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:47.491910Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mELli4yAvYZ+PbuGjyddPTeZaZUhxY9fmKe6F2jnoSZqazV4KpSs+tcT4W2Q3hTFEzxr65w5f2BOffTd3rZtCw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:47.492600Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.2938","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78576e9fd854020321e79fe6de77fa8ca469c16c0009f18da87bbb59fd2310e6","sha256:a68c2adf2748c647c36041e4dac76d924f642327b5bf37f637a467c0eb3ca44a"],"state_sha256":"5f4f59aac8b0d91c4031328197fec8df0ea7d6ec676d130d22ebb35367e968f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AV7L4bZDlimUvE/eSx3vt5Ome+y8lkMRpEQK0IODYcTxJlf1MT0GWrDSqc6lVQeq9BwEy+g5MqrKTVi8j/McDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T01:20:15.057303Z","bundle_sha256":"1cd024e9afe7438f68148a2fc528b12d60a42080db4ccaa3c661ed5b498be529"}}