{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:DDXUXCNIQGN32ENP3FC7MHDRLU","short_pith_number":"pith:DDXUXCNI","canonical_record":{"source":{"id":"0910.5567","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-29T08:03:57Z","cross_cats_sorted":[],"title_canon_sha256":"5455b96fb5d7c6375bd6395678a5586051bf43fc9bed1e7c8fdb15e81ba13261","abstract_canon_sha256":"b2ccb4bf3fab9716853f7b5005b80b60afeac74dd229801e2e88c83865ade77f"},"schema_version":"1.0"},"canonical_sha256":"18ef4b89a8819bbd11afd945f61c715d0a29bd0768993bf9b977c2032505485a","source":{"kind":"arxiv","id":"0910.5567","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.5567","created_at":"2026-05-18T01:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"0910.5567v1","created_at":"2026-05-18T01:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.5567","created_at":"2026-05-18T01:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"DDXUXCNIQGN3","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"DDXUXCNIQGN32ENP","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"DDXUXCNI","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:DDXUXCNIQGN32ENP3FC7MHDRLU","target":"record","payload":{"canonical_record":{"source":{"id":"0910.5567","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-29T08:03:57Z","cross_cats_sorted":[],"title_canon_sha256":"5455b96fb5d7c6375bd6395678a5586051bf43fc9bed1e7c8fdb15e81ba13261","abstract_canon_sha256":"b2ccb4bf3fab9716853f7b5005b80b60afeac74dd229801e2e88c83865ade77f"},"schema_version":"1.0"},"canonical_sha256":"18ef4b89a8819bbd11afd945f61c715d0a29bd0768993bf9b977c2032505485a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:59.589569Z","signature_b64":"MLmNuslL5dwXRkyde21mJVFjpgTPj18hvzTODPGr/f2cYTIK4khQL2vv3T26N0h6vJ66VqMgAjjF7Py16cCvDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"18ef4b89a8819bbd11afd945f61c715d0a29bd0768993bf9b977c2032505485a","last_reissued_at":"2026-05-18T01:04:59.589176Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:59.589176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.5567","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":"2026-05-18T01:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5PM+la1OH+y0xgPsRthAnhT6YIkSA6UuvKvuGhVnpkRuVB53G8qoB2ML2t33ylqwZkvVw3Ag2q5lpICPRqA4BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T07:19:47.670702Z"},"content_sha256":"7408f99894066ea0b1e88b9d7ecb6b6370da1aaa25e548cdb0d31a094640e8fa","schema_version":"1.0","event_id":"sha256:7408f99894066ea0b1e88b9d7ecb6b6370da1aaa25e548cdb0d31a094640e8fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:DDXUXCNIQGN32ENP3FC7MHDRLU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Surprising Metallicity of a Newly Discovered M79 Post-AGB Star","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"David L. Lambert, Timur Sahin","submitted_at":"2009-10-29T08:03:57Z","abstract_excerpt":"A detailed chemical composition analysis based on a high-resolution (R=35,000) CCD spectrum is presented for a newly discovered post-AGB star in the globular cluster M79 for the first time. The elemental abundance results of M79 Post-AGB star are found to be [C/Fe]=-0.7, [O/Fe]=+1.4, [alpha- process/Fe]=0.5, and [s-process/Fe]=-0.1. The surprising result is that the iron abundance of the star is apparently about 0.6 dex less than that of the cluster's red giants as reported by published studies including a recent high-resolution spectroscopic analysis by Carretta and colleagues."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.5567","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":"2026-05-18T01:04:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"erwX3rxizKbbXhXP/6hrKlOeGkHDTZ5HrWuzJTga/N/sPHWa8RsWZBH9AL18Jwu3FlndduYwTyUHzSupkqgqCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T07:19:47.671040Z"},"content_sha256":"ec11f982dd7be6b301e0901d9617cccd567dc2516ca77b1698a078de140e8647","schema_version":"1.0","event_id":"sha256:ec11f982dd7be6b301e0901d9617cccd567dc2516ca77b1698a078de140e8647"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DDXUXCNIQGN32ENP3FC7MHDRLU/bundle.json","state_url":"https://pith.science/pith/DDXUXCNIQGN32ENP3FC7MHDRLU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DDXUXCNIQGN32ENP3FC7MHDRLU/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":"2026-06-20T07:19:47Z","links":{"resolver":"https://pith.science/pith/DDXUXCNIQGN32ENP3FC7MHDRLU","bundle":"https://pith.science/pith/DDXUXCNIQGN32ENP3FC7MHDRLU/bundle.json","state":"https://pith.science/pith/DDXUXCNIQGN32ENP3FC7MHDRLU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DDXUXCNIQGN32ENP3FC7MHDRLU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:DDXUXCNIQGN32ENP3FC7MHDRLU","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":"b2ccb4bf3fab9716853f7b5005b80b60afeac74dd229801e2e88c83865ade77f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-29T08:03:57Z","title_canon_sha256":"5455b96fb5d7c6375bd6395678a5586051bf43fc9bed1e7c8fdb15e81ba13261"},"schema_version":"1.0","source":{"id":"0910.5567","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.5567","created_at":"2026-05-18T01:04:59Z"},{"alias_kind":"arxiv_version","alias_value":"0910.5567v1","created_at":"2026-05-18T01:04:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.5567","created_at":"2026-05-18T01:04:59Z"},{"alias_kind":"pith_short_12","alias_value":"DDXUXCNIQGN3","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"DDXUXCNIQGN32ENP","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"DDXUXCNI","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:ec11f982dd7be6b301e0901d9617cccd567dc2516ca77b1698a078de140e8647","target":"graph","created_at":"2026-05-18T01:04:59Z","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":"A detailed chemical composition analysis based on a high-resolution (R=35,000) CCD spectrum is presented for a newly discovered post-AGB star in the globular cluster M79 for the first time. The elemental abundance results of M79 Post-AGB star are found to be [C/Fe]=-0.7, [O/Fe]=+1.4, [alpha- process/Fe]=0.5, and [s-process/Fe]=-0.1. The surprising result is that the iron abundance of the star is apparently about 0.6 dex less than that of the cluster's red giants as reported by published studies including a recent high-resolution spectroscopic analysis by Carretta and colleagues.","authors_text":"David L. Lambert, Timur Sahin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-29T08:03:57Z","title":"Surprising Metallicity of a Newly Discovered M79 Post-AGB Star"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.5567","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":"sha256:7408f99894066ea0b1e88b9d7ecb6b6370da1aaa25e548cdb0d31a094640e8fa","target":"record","created_at":"2026-05-18T01:04:59Z","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":"b2ccb4bf3fab9716853f7b5005b80b60afeac74dd229801e2e88c83865ade77f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-29T08:03:57Z","title_canon_sha256":"5455b96fb5d7c6375bd6395678a5586051bf43fc9bed1e7c8fdb15e81ba13261"},"schema_version":"1.0","source":{"id":"0910.5567","kind":"arxiv","version":1}},"canonical_sha256":"18ef4b89a8819bbd11afd945f61c715d0a29bd0768993bf9b977c2032505485a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"18ef4b89a8819bbd11afd945f61c715d0a29bd0768993bf9b977c2032505485a","first_computed_at":"2026-05-18T01:04:59.589176Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:59.589176Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MLmNuslL5dwXRkyde21mJVFjpgTPj18hvzTODPGr/f2cYTIK4khQL2vv3T26N0h6vJ66VqMgAjjF7Py16cCvDg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:59.589569Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.5567","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7408f99894066ea0b1e88b9d7ecb6b6370da1aaa25e548cdb0d31a094640e8fa","sha256:ec11f982dd7be6b301e0901d9617cccd567dc2516ca77b1698a078de140e8647"],"state_sha256":"bca33f37a99608d775412f8802c3b0b7625844b8a594288520346fa9dafc8791"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rzr9EAHntP0ohP34MbaxaBwWgaajdxVH20Y2PwbnWe5URFRyKeGms72Y2+0NHm6mQmtDbW2Xvr/SLbLijGoqAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T07:19:47.672848Z","bundle_sha256":"1ae3dffbecc61b31f6d44dd7487f9fa8cbb742f83948886fd8129929ad71e766"}}