{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:ADSQYIK7LTIZYVRT4TRPMRBU7O","short_pith_number":"pith:ADSQYIK7","canonical_record":{"source":{"id":"1802.06654","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-19T14:48:48Z","cross_cats_sorted":[],"title_canon_sha256":"22379c15267740840918ce0390ab71ab11b2ec9b00ebb94e0c8f9bee64abd7c0","abstract_canon_sha256":"afee4a24b7ae589b6dcadec19fd9bb833e8209c461cc48bba9211722f2712df1"},"schema_version":"1.0"},"canonical_sha256":"00e50c215f5cd19c5633e4e2f64434fb97767720771c83e899c3db1769a5bab7","source":{"kind":"arxiv","id":"1802.06654","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06654","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06654v1","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06654","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"pith_short_12","alias_value":"ADSQYIK7LTIZ","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ADSQYIK7LTIZYVRT","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ADSQYIK7","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:ADSQYIK7LTIZYVRT4TRPMRBU7O","target":"record","payload":{"canonical_record":{"source":{"id":"1802.06654","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-19T14:48:48Z","cross_cats_sorted":[],"title_canon_sha256":"22379c15267740840918ce0390ab71ab11b2ec9b00ebb94e0c8f9bee64abd7c0","abstract_canon_sha256":"afee4a24b7ae589b6dcadec19fd9bb833e8209c461cc48bba9211722f2712df1"},"schema_version":"1.0"},"canonical_sha256":"00e50c215f5cd19c5633e4e2f64434fb97767720771c83e899c3db1769a5bab7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:12:53.185516Z","signature_b64":"tnsCt91MSpXjreESAGv+NZC3Er3VkN6XjCUtfFL6+nU/dN7IskhiT8JcJj/Hu6AXXpo0iPnvtrocjT83HvZJAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00e50c215f5cd19c5633e4e2f64434fb97767720771c83e899c3db1769a5bab7","last_reissued_at":"2026-05-18T00:12:53.184785Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:12:53.184785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.06654","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":"2026-05-18T00:12:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QBaJ39Am0qay9S9NpuQu2F/jWwBtMgaVxoCafUwhhEHr7/0Z6HduHKImTtR7CSX3ALqrWFtS6W94UjyB5MqPCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:55:36.831114Z"},"content_sha256":"eecaff4cb6e4b6293494cce9a7ac5585fd705409586c05eea69858ceb08e9d95","schema_version":"1.0","event_id":"sha256:eecaff4cb6e4b6293494cce9a7ac5585fd705409586c05eea69858ceb08e9d95"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:ADSQYIK7LTIZYVRT4TRPMRBU7O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Globular cluster chemistry in fast rotating dwarf stars belonging to intermediate age open clusters","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E. Pancino (INAF - OAA)","submitted_at":"2018-02-19T14:48:48Z","abstract_excerpt":"(shortened) The peculiar chemistry observed in the multiple populations of Galactic globular clusters is not generally found in other systems like dwarf galaxies and open clusters, and at the moment no model can fully explain its presence. Exploring the boundaries of the multiple population phenomenon and the variation of its extent in the space of cluster mass, age, metallicity, and compactness has proven to be a fruitful line of investigation. In the framework of a larger project to search for multiple population in open clusters, based on literature and survey data, I found peculiar chemica"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06654","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":"2026-05-18T00:12:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3TCKHzw3JOcQcUqjTj6vweQuRu5pZ+xC07Ytw9m8A1qJcu4u5nbTtxIL77UbGTlz8t4+YowNmJz5OGseRyxNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T22:55:36.831988Z"},"content_sha256":"25e31b42c83158f5f6a63227d84c40e43d40db98187df6cd38459236c3b1ba4c","schema_version":"1.0","event_id":"sha256:25e31b42c83158f5f6a63227d84c40e43d40db98187df6cd38459236c3b1ba4c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O/bundle.json","state_url":"https://pith.science/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O/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":"2026-08-08T22:55:36Z","links":{"resolver":"https://pith.science/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O","bundle":"https://pith.science/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O/bundle.json","state":"https://pith.science/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ADSQYIK7LTIZYVRT4TRPMRBU7O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:ADSQYIK7LTIZYVRT4TRPMRBU7O","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":"afee4a24b7ae589b6dcadec19fd9bb833e8209c461cc48bba9211722f2712df1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-19T14:48:48Z","title_canon_sha256":"22379c15267740840918ce0390ab71ab11b2ec9b00ebb94e0c8f9bee64abd7c0"},"schema_version":"1.0","source":{"id":"1802.06654","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.06654","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"arxiv_version","alias_value":"1802.06654v1","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06654","created_at":"2026-05-18T00:12:53Z"},{"alias_kind":"pith_short_12","alias_value":"ADSQYIK7LTIZ","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"ADSQYIK7LTIZYVRT","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"ADSQYIK7","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:25e31b42c83158f5f6a63227d84c40e43d40db98187df6cd38459236c3b1ba4c","target":"graph","created_at":"2026-05-18T00:12:53Z","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":"(shortened) The peculiar chemistry observed in the multiple populations of Galactic globular clusters is not generally found in other systems like dwarf galaxies and open clusters, and at the moment no model can fully explain its presence. Exploring the boundaries of the multiple population phenomenon and the variation of its extent in the space of cluster mass, age, metallicity, and compactness has proven to be a fruitful line of investigation. In the framework of a larger project to search for multiple population in open clusters, based on literature and survey data, I found peculiar chemica","authors_text":"E. Pancino (INAF - OAA)","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-19T14:48:48Z","title":"Globular cluster chemistry in fast rotating dwarf stars belonging to intermediate age open clusters"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06654","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:eecaff4cb6e4b6293494cce9a7ac5585fd705409586c05eea69858ceb08e9d95","target":"record","created_at":"2026-05-18T00:12:53Z","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":"afee4a24b7ae589b6dcadec19fd9bb833e8209c461cc48bba9211722f2712df1","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-02-19T14:48:48Z","title_canon_sha256":"22379c15267740840918ce0390ab71ab11b2ec9b00ebb94e0c8f9bee64abd7c0"},"schema_version":"1.0","source":{"id":"1802.06654","kind":"arxiv","version":1}},"canonical_sha256":"00e50c215f5cd19c5633e4e2f64434fb97767720771c83e899c3db1769a5bab7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00e50c215f5cd19c5633e4e2f64434fb97767720771c83e899c3db1769a5bab7","first_computed_at":"2026-05-18T00:12:53.184785Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:12:53.184785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tnsCt91MSpXjreESAGv+NZC3Er3VkN6XjCUtfFL6+nU/dN7IskhiT8JcJj/Hu6AXXpo0iPnvtrocjT83HvZJAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:12:53.185516Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.06654","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eecaff4cb6e4b6293494cce9a7ac5585fd705409586c05eea69858ceb08e9d95","sha256:25e31b42c83158f5f6a63227d84c40e43d40db98187df6cd38459236c3b1ba4c"],"state_sha256":"f2cd7dfb5dbc7d39ff13df158b7f4dc3d6dd98e5cb30873e77fe5d6e50c2cec3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2bbCMjSARQthEJ3VQpuUt0edqIeCvmOmhWLomG29PCp5m2XcTCrjzGVgwsbXDxmAOn0DgmJ2xSRah/2YNYu/Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T22:55:36.837691Z","bundle_sha256":"f4ddf394554792797317bd5da008fc3272d7b6d8fa9a8acc1d9a3dd934ddf1c0"}}