{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:XZ4XWRW42HTYL6GWBFF5WVBTUI","short_pith_number":"pith:XZ4XWRW4","canonical_record":{"source":{"id":"astro-ph/0509658","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-22T06:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"c31785639f9cc9948fc0c02d0a3aab2e75fd9d5bc63ea823d7507d5c0254e28d","abstract_canon_sha256":"b0dee69db26603b759075dcb72aded2441ea21d368bf925907b7f1daf2db7091"},"schema_version":"1.0"},"canonical_sha256":"be797b46dcd1e785f8d6094bdb5433a207aa80bf85fdd28de71eb4aff88425cf","source":{"kind":"arxiv","id":"astro-ph/0509658","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0509658","created_at":"2026-05-18T01:07:30Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509658v1","created_at":"2026-05-18T01:07:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509658","created_at":"2026-05-18T01:07:30Z"},{"alias_kind":"pith_short_12","alias_value":"XZ4XWRW42HTY","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"XZ4XWRW42HTYL6GW","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"XZ4XWRW4","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:XZ4XWRW42HTYL6GWBFF5WVBTUI","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0509658","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-22T06:30:27Z","cross_cats_sorted":[],"title_canon_sha256":"c31785639f9cc9948fc0c02d0a3aab2e75fd9d5bc63ea823d7507d5c0254e28d","abstract_canon_sha256":"b0dee69db26603b759075dcb72aded2441ea21d368bf925907b7f1daf2db7091"},"schema_version":"1.0"},"canonical_sha256":"be797b46dcd1e785f8d6094bdb5433a207aa80bf85fdd28de71eb4aff88425cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:30.500640Z","signature_b64":"P/0R2u5DLzbwcUwNPlZTFOqmJtRcZ+52ihNHi1MH9QfVvTXEAtXeo23hCzqJwvASNabrUXFXBV59B102NOM+CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"be797b46dcd1e785f8d6094bdb5433a207aa80bf85fdd28de71eb4aff88425cf","last_reissued_at":"2026-05-18T01:07:30.500110Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:30.500110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0509658","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":"2026-05-18T01:07:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N/VOHyk0snUlKcQRL7AoloYRJlMvx50FfvN6Oft4XSZGiZOJTGI0n90HmXGT25UpN28K65UWR5qUECgDPLx9CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:26:19.432533Z"},"content_sha256":"6011691b9fe70ad6f0fa5ee0b9094e928b12ab774adceef92b64d1875bddbf8d","schema_version":"1.0","event_id":"sha256:6011691b9fe70ad6f0fa5ee0b9094e928b12ab774adceef92b64d1875bddbf8d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:XZ4XWRW42HTYL6GWBFF5WVBTUI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The new record holder for the most iron-poor star: HE 1327-2326, a dwarf or subgiant with [Fe/H]=-5.4","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Frebel, C. Fechner, H. Ando, J.E. Norris, K. Eriksson, K. Nomoto, M. Asplund, M. Takada-Hidai, M.Y. Fujimoto, N. Christlieb, P.S. Barklem, S.G. Ryan, S. Honda, S. Tsangarides, T. C. Beers, T. Kajino, T. Minezaki, W. Aoki, Y. Yoshii","submitted_at":"2005-09-22T06:30:27Z","abstract_excerpt":"We describe the discovery of HE 1327-2326, a dwarf or subgiant with [Fe/H]}=-5.4. The star was found in a sample of bright metal-poor stars selected from the Hamburg/ESO survey. Its abundance pattern is characterized by very high C and N abundances. The detection of Sr which is overabundant by a factor of 10 as compared to iron and the Sun, suggests that neutron-capture elements had already been produced in the very early Galaxy. A puzzling Li depletion is observed in this unevolved star which contradicts the value of the primordial Li derived from WMAP and other Li studies. Possible scenarios"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509658","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":"2026-05-18T01:07:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/LlcR2n77YK8siuZhFgFZYb20kNy4Hb+TzTqScj4znK1A8SAnV5jfLukFIMzvNAf+4EvK5023Jt97cFA7mFACA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T01:26:19.432880Z"},"content_sha256":"e7a8d90063b0bcd577409d56fa6a728dfa1ae8ddf12750e1fa1db6d3cfd9f80e","schema_version":"1.0","event_id":"sha256:e7a8d90063b0bcd577409d56fa6a728dfa1ae8ddf12750e1fa1db6d3cfd9f80e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI/bundle.json","state_url":"https://pith.science/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI/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":"2026-06-02T01:26:19Z","links":{"resolver":"https://pith.science/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI","bundle":"https://pith.science/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI/bundle.json","state":"https://pith.science/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XZ4XWRW42HTYL6GWBFF5WVBTUI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:XZ4XWRW42HTYL6GWBFF5WVBTUI","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":"b0dee69db26603b759075dcb72aded2441ea21d368bf925907b7f1daf2db7091","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-22T06:30:27Z","title_canon_sha256":"c31785639f9cc9948fc0c02d0a3aab2e75fd9d5bc63ea823d7507d5c0254e28d"},"schema_version":"1.0","source":{"id":"astro-ph/0509658","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0509658","created_at":"2026-05-18T01:07:30Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0509658v1","created_at":"2026-05-18T01:07:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0509658","created_at":"2026-05-18T01:07:30Z"},{"alias_kind":"pith_short_12","alias_value":"XZ4XWRW42HTY","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"XZ4XWRW42HTYL6GW","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"XZ4XWRW4","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:e7a8d90063b0bcd577409d56fa6a728dfa1ae8ddf12750e1fa1db6d3cfd9f80e","target":"graph","created_at":"2026-05-18T01:07:30Z","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 describe the discovery of HE 1327-2326, a dwarf or subgiant with [Fe/H]}=-5.4. The star was found in a sample of bright metal-poor stars selected from the Hamburg/ESO survey. Its abundance pattern is characterized by very high C and N abundances. The detection of Sr which is overabundant by a factor of 10 as compared to iron and the Sun, suggests that neutron-capture elements had already been produced in the very early Galaxy. A puzzling Li depletion is observed in this unevolved star which contradicts the value of the primordial Li derived from WMAP and other Li studies. Possible scenarios","authors_text":"A. Frebel, C. Fechner, H. Ando, J.E. Norris, K. Eriksson, K. Nomoto, M. Asplund, M. Takada-Hidai, M.Y. Fujimoto, N. Christlieb, P.S. Barklem, S.G. Ryan, S. Honda, S. Tsangarides, T. C. Beers, T. Kajino, T. Minezaki, W. Aoki, Y. Yoshii","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-09-22T06:30:27Z","title":"The new record holder for the most iron-poor star: HE 1327-2326, a dwarf or subgiant with [Fe/H]=-5.4"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0509658","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":"sha256:6011691b9fe70ad6f0fa5ee0b9094e928b12ab774adceef92b64d1875bddbf8d","target":"record","created_at":"2026-05-18T01:07:30Z","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":"b0dee69db26603b759075dcb72aded2441ea21d368bf925907b7f1daf2db7091","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-09-22T06:30:27Z","title_canon_sha256":"c31785639f9cc9948fc0c02d0a3aab2e75fd9d5bc63ea823d7507d5c0254e28d"},"schema_version":"1.0","source":{"id":"astro-ph/0509658","kind":"arxiv","version":1}},"canonical_sha256":"be797b46dcd1e785f8d6094bdb5433a207aa80bf85fdd28de71eb4aff88425cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"be797b46dcd1e785f8d6094bdb5433a207aa80bf85fdd28de71eb4aff88425cf","first_computed_at":"2026-05-18T01:07:30.500110Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:30.500110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P/0R2u5DLzbwcUwNPlZTFOqmJtRcZ+52ihNHi1MH9QfVvTXEAtXeo23hCzqJwvASNabrUXFXBV59B102NOM+CQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:30.500640Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0509658","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6011691b9fe70ad6f0fa5ee0b9094e928b12ab774adceef92b64d1875bddbf8d","sha256:e7a8d90063b0bcd577409d56fa6a728dfa1ae8ddf12750e1fa1db6d3cfd9f80e"],"state_sha256":"870823c2a399c96ac272e0b7c98cc91e60a07fd23ed0a47c32d1e0b038c5590e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nqFLEREy5WsgDQbP2LhABhLnzUSQg0Oy/lLX7aM+oe/ZxjzZOnGA8vaOBk1g1EQsTmgTqdICMaCFaRWrOO2yCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T01:26:19.435071Z","bundle_sha256":"0436c665e748b2390c5ff32ed5d42d319786ea069b7fe05c7be42561a64257b8"}}