{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:6G76SM55GK2UCLS6QF66WGGDOB","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":"945626178cc7ed03b32c7fd74647b6793a25e8a8c63a6b8a1e66f96003d36063","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-05T09:39:19Z","title_canon_sha256":"5a6a73b32babe49ce3277be4ff1e800e1fea1d4ab92c9e427739d476f5a74472"},"schema_version":"1.0","source":{"id":"astro-ph/0302075","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0302075","created_at":"2026-05-18T04:21:41Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0302075v1","created_at":"2026-05-18T04:21:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0302075","created_at":"2026-05-18T04:21:41Z"},{"alias_kind":"pith_short_12","alias_value":"6G76SM55GK2U","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_16","alias_value":"6G76SM55GK2UCLS6","created_at":"2026-05-18T12:25:51Z"},{"alias_kind":"pith_short_8","alias_value":"6G76SM55","created_at":"2026-05-18T12:25:51Z"}],"graph_snapshots":[{"event_id":"sha256:d75a9a5236f9452a1288b56f3e58582aa5adf511897a1fe208d25c862cbe340f","target":"graph","created_at":"2026-05-18T04:21:41Z","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 standard model for the operation of the s-process in asymptotic giant branch (AGB) stars predicts that low-metallicity ([Fe/H] <= -1) AGB stars should exhibit large overabundances of Pb and Bi as compared to other s-elements. Eight CH stars (with [Fe/H] ranging from -1.5 to -2.5) are studied in the present paper using high-resolution spectra (R = lambda/Delta lambda = 135 000), and five of them appear to be enriched in lead (with [Pb/Ce] ~ 0.7). Abundances of heavy elements in these `lead stars' (defined as stars enriched in s-elements and with [Pb/hs] >= 1, hs being any of Ba, La or Ce) a","authors_text":"A. Jorissen, B. Plez, S. Goriely, S. Van Eck","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-02-05T09:39:19Z","title":"More lead stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0302075","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":"sha256:463fbf6567817cd73fe2dd65988ba72936eb6452cd6f3e7c2be3b2b386a1ae55","target":"record","created_at":"2026-05-18T04:21:41Z","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":"945626178cc7ed03b32c7fd74647b6793a25e8a8c63a6b8a1e66f96003d36063","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-02-05T09:39:19Z","title_canon_sha256":"5a6a73b32babe49ce3277be4ff1e800e1fea1d4ab92c9e427739d476f5a74472"},"schema_version":"1.0","source":{"id":"astro-ph/0302075","kind":"arxiv","version":1}},"canonical_sha256":"f1bfe933bd32b5412e5e817deb18c3705eb8526ea3d25a6c6c6d5cdde7c294ab","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f1bfe933bd32b5412e5e817deb18c3705eb8526ea3d25a6c6c6d5cdde7c294ab","first_computed_at":"2026-05-18T04:21:41.915854Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:21:41.915854Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n415Vuet3Uvlis8VqwHohESIKStkeEFSWDdZg1SSBPcRAxN5lDynRNZlOmzDojBkp+vTMtj6SrLwTR9LvHxVAw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:21:41.916558Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0302075","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:463fbf6567817cd73fe2dd65988ba72936eb6452cd6f3e7c2be3b2b386a1ae55","sha256:d75a9a5236f9452a1288b56f3e58582aa5adf511897a1fe208d25c862cbe340f"],"state_sha256":"8979e423512866b18398b175f8ce09c8110440711aedde21a1db41ad21cb23cf"}