{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:7XFS3RVB3JEYECEPNLATDY2UZ6","short_pith_number":"pith:7XFS3RVB","canonical_record":{"source":{"id":"0910.0707","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-05T10:04:56Z","cross_cats_sorted":[],"title_canon_sha256":"5d04e8814e13f12a2c01837c96cde5ad452f7422f2297fb5d5b631d918882265","abstract_canon_sha256":"7078c3a95eb792274b2dc4abbbcc956e92496ae319b9b67ed36fc00c2f230f62"},"schema_version":"1.0"},"canonical_sha256":"fdcb2dc6a1da4982088f6ac131e354cf9762b708a853c186f0beae2bc3972873","source":{"kind":"arxiv","id":"0910.0707","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.0707","created_at":"2026-05-18T04:37:33Z"},{"alias_kind":"arxiv_version","alias_value":"0910.0707v1","created_at":"2026-05-18T04:37:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.0707","created_at":"2026-05-18T04:37:33Z"},{"alias_kind":"pith_short_12","alias_value":"7XFS3RVB3JEY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XFS3RVB3JEYECEP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XFS3RVB","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:7XFS3RVB3JEYECEPNLATDY2UZ6","target":"record","payload":{"canonical_record":{"source":{"id":"0910.0707","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-05T10:04:56Z","cross_cats_sorted":[],"title_canon_sha256":"5d04e8814e13f12a2c01837c96cde5ad452f7422f2297fb5d5b631d918882265","abstract_canon_sha256":"7078c3a95eb792274b2dc4abbbcc956e92496ae319b9b67ed36fc00c2f230f62"},"schema_version":"1.0"},"canonical_sha256":"fdcb2dc6a1da4982088f6ac131e354cf9762b708a853c186f0beae2bc3972873","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:37:33.730716Z","signature_b64":"nQ5BXfrsng5Qu9AfInCkyqVEWk7kO5+c+xQX9ZJvNhuj1y4oEfnevQ1Vsti/SKiJI3+bRMGwUW02eFiVh2KZBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fdcb2dc6a1da4982088f6ac131e354cf9762b708a853c186f0beae2bc3972873","last_reissued_at":"2026-05-18T04:37:33.730150Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:37:33.730150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0910.0707","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":"2026-05-18T04:37:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2IQmWp+cZkpJzvUK/mAh2jGhsDDOplx43r4v8jXA7NrV89kvOJm3oncQLLexmsycAQUZQd7FIr4QiGM80IoqBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:36:52.002107Z"},"content_sha256":"5171d824c65bda4c38d53e7b8d5e19a83747e1472df6488d43e1b7fc5b749325","schema_version":"1.0","event_id":"sha256:5171d824c65bda4c38d53e7b8d5e19a83747e1472df6488d43e1b7fc5b749325"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:7XFS3RVB3JEYECEPNLATDY2UZ6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Hamburg/ESO R-process Enhanced Star survey (HERES) IV. Detailed abundance analysis and age dating of the strongly r-process enhanced stars CS 29491-069 and HE 1219-0312","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A.J. Korn, B. Pfeiffer, K. Eriksson, K. Farouqi, K.-L. Kratz, N. Christlieb, P.S. Barklem, T.C. Beers, U. Wiesendahl, V. Hill, W. Hayek","submitted_at":"2009-10-05T10:04:56Z","abstract_excerpt":"We report on a detailed abundance analysis of two strongly r-process enhanced, very metal-poor stars newly discovered in the HERES project, CS 29491-069 ([Fe/H]=-2.51, [r/Fe]=+1.1) and HE 1219-0312 ([Fe/H]=-2.96, [r/Fe]=+1.5). The analysis is based on high-quality VLT/UVES spectra and MARCS model atmospheres. We detect lines of 15 heavy elements in the spectrum of CS 29491-069, and 18 in HE 1219-0312; in both cases including the Th II 4019 {\\AA} line. The heavy-element abundance patterns of these two stars are mostly well-matched to scaled solar residual abundances not formed by the s-process."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0707","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":"2026-05-18T04:37:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ASd1CcKuKGMNEMzf8fnDr9xYQPcN5Z69styU1SK+5dK9xdKXG8bO22wFZtFtcmnD9Q9Y9+cLkwJPnrUJZsdjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T20:36:52.002827Z"},"content_sha256":"07f3616058b9cd238c880c6c8f45425e007b0e3094cf2f631574bccadebcd97c","schema_version":"1.0","event_id":"sha256:07f3616058b9cd238c880c6c8f45425e007b0e3094cf2f631574bccadebcd97c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7XFS3RVB3JEYECEPNLATDY2UZ6/bundle.json","state_url":"https://pith.science/pith/7XFS3RVB3JEYECEPNLATDY2UZ6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7XFS3RVB3JEYECEPNLATDY2UZ6/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":"2026-05-25T20:36:52Z","links":{"resolver":"https://pith.science/pith/7XFS3RVB3JEYECEPNLATDY2UZ6","bundle":"https://pith.science/pith/7XFS3RVB3JEYECEPNLATDY2UZ6/bundle.json","state":"https://pith.science/pith/7XFS3RVB3JEYECEPNLATDY2UZ6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7XFS3RVB3JEYECEPNLATDY2UZ6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:7XFS3RVB3JEYECEPNLATDY2UZ6","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":"7078c3a95eb792274b2dc4abbbcc956e92496ae319b9b67ed36fc00c2f230f62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-05T10:04:56Z","title_canon_sha256":"5d04e8814e13f12a2c01837c96cde5ad452f7422f2297fb5d5b631d918882265"},"schema_version":"1.0","source":{"id":"0910.0707","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0910.0707","created_at":"2026-05-18T04:37:33Z"},{"alias_kind":"arxiv_version","alias_value":"0910.0707v1","created_at":"2026-05-18T04:37:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0910.0707","created_at":"2026-05-18T04:37:33Z"},{"alias_kind":"pith_short_12","alias_value":"7XFS3RVB3JEY","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"7XFS3RVB3JEYECEP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"7XFS3RVB","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:07f3616058b9cd238c880c6c8f45425e007b0e3094cf2f631574bccadebcd97c","target":"graph","created_at":"2026-05-18T04:37:33Z","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 report on a detailed abundance analysis of two strongly r-process enhanced, very metal-poor stars newly discovered in the HERES project, CS 29491-069 ([Fe/H]=-2.51, [r/Fe]=+1.1) and HE 1219-0312 ([Fe/H]=-2.96, [r/Fe]=+1.5). The analysis is based on high-quality VLT/UVES spectra and MARCS model atmospheres. We detect lines of 15 heavy elements in the spectrum of CS 29491-069, and 18 in HE 1219-0312; in both cases including the Th II 4019 {\\AA} line. The heavy-element abundance patterns of these two stars are mostly well-matched to scaled solar residual abundances not formed by the s-process.","authors_text":"A.J. Korn, B. Pfeiffer, K. Eriksson, K. Farouqi, K.-L. Kratz, N. Christlieb, P.S. Barklem, T.C. Beers, U. Wiesendahl, V. Hill, W. Hayek","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-05T10:04:56Z","title":"The Hamburg/ESO R-process Enhanced Star survey (HERES) IV. Detailed abundance analysis and age dating of the strongly r-process enhanced stars CS 29491-069 and HE 1219-0312"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.0707","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":"sha256:5171d824c65bda4c38d53e7b8d5e19a83747e1472df6488d43e1b7fc5b749325","target":"record","created_at":"2026-05-18T04:37:33Z","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":"7078c3a95eb792274b2dc4abbbcc956e92496ae319b9b67ed36fc00c2f230f62","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-10-05T10:04:56Z","title_canon_sha256":"5d04e8814e13f12a2c01837c96cde5ad452f7422f2297fb5d5b631d918882265"},"schema_version":"1.0","source":{"id":"0910.0707","kind":"arxiv","version":1}},"canonical_sha256":"fdcb2dc6a1da4982088f6ac131e354cf9762b708a853c186f0beae2bc3972873","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fdcb2dc6a1da4982088f6ac131e354cf9762b708a853c186f0beae2bc3972873","first_computed_at":"2026-05-18T04:37:33.730150Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:37:33.730150Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nQ5BXfrsng5Qu9AfInCkyqVEWk7kO5+c+xQX9ZJvNhuj1y4oEfnevQ1Vsti/SKiJI3+bRMGwUW02eFiVh2KZBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:37:33.730716Z","signed_message":"canonical_sha256_bytes"},"source_id":"0910.0707","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5171d824c65bda4c38d53e7b8d5e19a83747e1472df6488d43e1b7fc5b749325","sha256:07f3616058b9cd238c880c6c8f45425e007b0e3094cf2f631574bccadebcd97c"],"state_sha256":"0f7d22dba5515bec2610dedd71093d59975a979ecb7f30b23562acb0c958e46a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KnxL2OmOB1vup/lzto8DeEORVrv3t8zbxLmspHlao6/dxaXnE888ri3CK1DgS2M3YabxhERTKSBYfHemB1KgDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T20:36:52.006632Z","bundle_sha256":"c4a5b17d68c1c5badf58058b583ed10123c5de2351d43f16bb5203231a9dab0c"}}