{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:J43MMW5MFZ24MQOCS23BMZV2KL","short_pith_number":"pith:J43MMW5M","canonical_record":{"source":{"id":"1003.0013","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-02-26T21:36:17Z","cross_cats_sorted":[],"title_canon_sha256":"0c20cf5547370d708a2c5be897de6c9896fb1fd138db1e75cc6392ba3194535c","abstract_canon_sha256":"d299a88044d0cb622df931dc250058747b324ecdc45e54adb0e4c31f496110e3"},"schema_version":"1.0"},"canonical_sha256":"4f36c65bac2e75c641c296b61666ba52d87c3b275dc4cf813262ac4e07b5af69","source":{"kind":"arxiv","id":"1003.0013","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.0013","created_at":"2026-05-18T02:08:48Z"},{"alias_kind":"arxiv_version","alias_value":"1003.0013v2","created_at":"2026-05-18T02:08:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.0013","created_at":"2026-05-18T02:08:48Z"},{"alias_kind":"pith_short_12","alias_value":"J43MMW5MFZ24","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"J43MMW5MFZ24MQOC","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"J43MMW5M","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:J43MMW5MFZ24MQOCS23BMZV2KL","target":"record","payload":{"canonical_record":{"source":{"id":"1003.0013","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-02-26T21:36:17Z","cross_cats_sorted":[],"title_canon_sha256":"0c20cf5547370d708a2c5be897de6c9896fb1fd138db1e75cc6392ba3194535c","abstract_canon_sha256":"d299a88044d0cb622df931dc250058747b324ecdc45e54adb0e4c31f496110e3"},"schema_version":"1.0"},"canonical_sha256":"4f36c65bac2e75c641c296b61666ba52d87c3b275dc4cf813262ac4e07b5af69","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:48.761947Z","signature_b64":"f4oEpxWd3xZhRzwvuku1yLV3RPC5MC+UDkRIqey9H6whXc7hL6mRCT1yJDJf8WnYtggQsUfbzK3ql0giHSnoBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f36c65bac2e75c641c296b61666ba52d87c3b275dc4cf813262ac4e07b5af69","last_reissued_at":"2026-05-18T02:08:48.761268Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:48.761268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1003.0013","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:08:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gXsBVlH4qyPw+ndnNwmU+6XB59zIA7m9281SQTq/WXb+RLwnjEF1QNBF/JK3zzEAAjTeWZHSdUgWSYUhJb14Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:05:00.259395Z"},"content_sha256":"3a8a1ee44ca263aa47ac00f611601ecb697be0e2bc9ee3d760df95a352cff1b0","schema_version":"1.0","event_id":"sha256:3a8a1ee44ca263aa47ac00f611601ecb697be0e2bc9ee3d760df95a352cff1b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:J43MMW5MFZ24MQOCS23BMZV2KL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Lithium and proton-capture elements in Globular Cluster dwarfs: the case of 47 Tuc","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"2), (2)Excellence Cluster Universe, (3)INAF-Osservatorio Astronomico di Bologna, (4)National Astronomical Observatories, Angela Bragaglia (3), Chinese Academy of Science), Eugenio Carretta (3), Raffaele Gratton (1), Sara Lucatello (1, Simone Zaggia (1). ((1)INAF-Osservatorio Astronomico di Padova, Technische Universitat Munchen, Valentina D'Orazi (1), Zhixia Shen (4)","submitted_at":"2010-02-26T21:36:17Z","abstract_excerpt":"Previous surveys in a few metal-poor globular clusters (GCs) showed that the determination of abundances for Li and proton-capture elements offers a key tool to address the intracluster pollution scenario. In this Letter, we present Na, O, and Li abundances in a large sample of dwarf stars in the metal-rich GC 47 Tucanae. We found a clear Na-O anticorrelation, in good agreement with what obtained for giant members by Carretta et al. While lithium and oxygen abundances appear to be positively correlated with each other, there is a large scatter, well exceeding observational errors, and no antic"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.0013","kind":"arxiv","version":2},"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":"2026-05-18T02:08:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GVo4VsQ0JY2GJzxk3eva9lLWp85SrJ2aJ2wbt/7mLyJmG20GO4LFwHswY/PVP85GYS+NuPAtjhQ+VJ4U92HjBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T11:05:00.259751Z"},"content_sha256":"05b0c037eaf60c9ec06cdb31caed7e98029daf44db444c9f0e6e9eb4d67f39bb","schema_version":"1.0","event_id":"sha256:05b0c037eaf60c9ec06cdb31caed7e98029daf44db444c9f0e6e9eb4d67f39bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J43MMW5MFZ24MQOCS23BMZV2KL/bundle.json","state_url":"https://pith.science/pith/J43MMW5MFZ24MQOCS23BMZV2KL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J43MMW5MFZ24MQOCS23BMZV2KL/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":"2026-06-03T11:05:00Z","links":{"resolver":"https://pith.science/pith/J43MMW5MFZ24MQOCS23BMZV2KL","bundle":"https://pith.science/pith/J43MMW5MFZ24MQOCS23BMZV2KL/bundle.json","state":"https://pith.science/pith/J43MMW5MFZ24MQOCS23BMZV2KL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J43MMW5MFZ24MQOCS23BMZV2KL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:J43MMW5MFZ24MQOCS23BMZV2KL","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":"d299a88044d0cb622df931dc250058747b324ecdc45e54adb0e4c31f496110e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-02-26T21:36:17Z","title_canon_sha256":"0c20cf5547370d708a2c5be897de6c9896fb1fd138db1e75cc6392ba3194535c"},"schema_version":"1.0","source":{"id":"1003.0013","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1003.0013","created_at":"2026-05-18T02:08:48Z"},{"alias_kind":"arxiv_version","alias_value":"1003.0013v2","created_at":"2026-05-18T02:08:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1003.0013","created_at":"2026-05-18T02:08:48Z"},{"alias_kind":"pith_short_12","alias_value":"J43MMW5MFZ24","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"J43MMW5MFZ24MQOC","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"J43MMW5M","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:05b0c037eaf60c9ec06cdb31caed7e98029daf44db444c9f0e6e9eb4d67f39bb","target":"graph","created_at":"2026-05-18T02:08:48Z","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":"Previous surveys in a few metal-poor globular clusters (GCs) showed that the determination of abundances for Li and proton-capture elements offers a key tool to address the intracluster pollution scenario. In this Letter, we present Na, O, and Li abundances in a large sample of dwarf stars in the metal-rich GC 47 Tucanae. We found a clear Na-O anticorrelation, in good agreement with what obtained for giant members by Carretta et al. While lithium and oxygen abundances appear to be positively correlated with each other, there is a large scatter, well exceeding observational errors, and no antic","authors_text":"2), (2)Excellence Cluster Universe, (3)INAF-Osservatorio Astronomico di Bologna, (4)National Astronomical Observatories, Angela Bragaglia (3), Chinese Academy of Science), Eugenio Carretta (3), Raffaele Gratton (1), Sara Lucatello (1, Simone Zaggia (1). ((1)INAF-Osservatorio Astronomico di Padova, Technische Universitat Munchen, Valentina D'Orazi (1), Zhixia Shen (4)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-02-26T21:36:17Z","title":"Lithium and proton-capture elements in Globular Cluster dwarfs: the case of 47 Tuc"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1003.0013","kind":"arxiv","version":2},"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":"sha256:3a8a1ee44ca263aa47ac00f611601ecb697be0e2bc9ee3d760df95a352cff1b0","target":"record","created_at":"2026-05-18T02:08:48Z","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":"d299a88044d0cb622df931dc250058747b324ecdc45e54adb0e4c31f496110e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-02-26T21:36:17Z","title_canon_sha256":"0c20cf5547370d708a2c5be897de6c9896fb1fd138db1e75cc6392ba3194535c"},"schema_version":"1.0","source":{"id":"1003.0013","kind":"arxiv","version":2}},"canonical_sha256":"4f36c65bac2e75c641c296b61666ba52d87c3b275dc4cf813262ac4e07b5af69","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f36c65bac2e75c641c296b61666ba52d87c3b275dc4cf813262ac4e07b5af69","first_computed_at":"2026-05-18T02:08:48.761268Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:08:48.761268Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"f4oEpxWd3xZhRzwvuku1yLV3RPC5MC+UDkRIqey9H6whXc7hL6mRCT1yJDJf8WnYtggQsUfbzK3ql0giHSnoBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:08:48.761947Z","signed_message":"canonical_sha256_bytes"},"source_id":"1003.0013","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a8a1ee44ca263aa47ac00f611601ecb697be0e2bc9ee3d760df95a352cff1b0","sha256:05b0c037eaf60c9ec06cdb31caed7e98029daf44db444c9f0e6e9eb4d67f39bb"],"state_sha256":"6d31d55f9dcd126916bf06afc308946789fa7baa5523aabb4f1d22d80c928a44"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OXCltwc5FLRA/u+yPovMw+MGIX6MBMx/e6CbWuMWRu0Ii5gHdPAXC3jSUC4XpZWTlDz6MUuq8xfGRtASemNRBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T11:05:00.261662Z","bundle_sha256":"6460b52f1ed5c31aa5fe0cce7623ad5d137f863af9f772b2268b655b1984f123"}}