{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:DPVE5QKTLOC2RCMPDPIZXV5V5Y","short_pith_number":"pith:DPVE5QKT","canonical_record":{"source":{"id":"1708.02290","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-07T20:05:00Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"7c8390d9db7eb6f42ca7b2acd05649e7e696963a35b6fa0c52cf6edb65b655aa","abstract_canon_sha256":"204ff566e165cdc681b77204edf40c20c1a65540db32b7a1b40e75f52e9d771c"},"schema_version":"1.0"},"canonical_sha256":"1bea4ec1535b85a8898f1bd19bd7b5ee1d047d1bf520b0bd2c8d3b8dd77b0633","source":{"kind":"arxiv","id":"1708.02290","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02290","created_at":"2026-05-18T00:25:17Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02290v1","created_at":"2026-05-18T00:25:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02290","created_at":"2026-05-18T00:25:17Z"},{"alias_kind":"pith_short_12","alias_value":"DPVE5QKTLOC2","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DPVE5QKTLOC2RCMP","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DPVE5QKT","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:DPVE5QKTLOC2RCMPDPIZXV5V5Y","target":"record","payload":{"canonical_record":{"source":{"id":"1708.02290","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-07T20:05:00Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"7c8390d9db7eb6f42ca7b2acd05649e7e696963a35b6fa0c52cf6edb65b655aa","abstract_canon_sha256":"204ff566e165cdc681b77204edf40c20c1a65540db32b7a1b40e75f52e9d771c"},"schema_version":"1.0"},"canonical_sha256":"1bea4ec1535b85a8898f1bd19bd7b5ee1d047d1bf520b0bd2c8d3b8dd77b0633","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:25:17.780140Z","signature_b64":"7sa4vkEsuHzpykGaRmaCaOThn7JmGxv15aOebtPVRpmYRB9WWwrBtsaTeEoK4mOhkdbfJTNDnhrqXzCzJo7FDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1bea4ec1535b85a8898f1bd19bd7b5ee1d047d1bf520b0bd2c8d3b8dd77b0633","last_reissued_at":"2026-05-18T00:25:17.779589Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:25:17.779589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1708.02290","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":"2026-05-18T00:25:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0ae81oR4wR/rUl2x+E/YFNgRQeku6HXmrC0nVneuGR/Zy4cvD9vDGnWJIcjwDkT7wBaFALjUvYFPwp5fUJxTAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T19:36:27.282840Z"},"content_sha256":"d36690e78975a6c8d3776b949467eae1243da239f5073c6110c855fda8be6381","schema_version":"1.0","event_id":"sha256:d36690e78975a6c8d3776b949467eae1243da239f5073c6110c855fda8be6381"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:DPVE5QKTLOC2RCMPDPIZXV5V5Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Chemical Abundance Analysis of Three $\\alpha$-Poor, Metal-Poor Stars in the Ultra-Faint Dwarf Galaxy Horologium I","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Benoit-L\\'evy, A. B. Pace, A. Carnero Rosell, A. Drlica-Wagner, A. Roodman, A. R. Walker, B. Flaugher, B. Nord, B. Santiago, B. Yanny, C. B. D'Andrea, C. Davis, C. E. Cunha, C. M. Pellegrino, D. Brooks, D. Gruen, D. J. James, D. L. DePoy, D. L. Tucker, D. Q. Nagasawa, D. Thomas, D. W. Gerdes, E. Balbinot, E. Bertin, E. Gaztanaga, E. Krause, E. Sanchez, E. Suchyta, F. B. Abdalla, F. Sobreira, G. Gutierrez, G. Tarle, I. Sevilla-Noarbe, J. Annis, J. Carretero, J. D. Simon, J. Frieman, J. Garc\\'ia-Bellido, J. Gschwend, J. L. Marshall, K. Bechtol, K. Honscheid, K. Kuehn, L. E. Strigari, L. N. da Costa, M. Carrasco Kind, M. March, M. Schubnell, M. Smith, M. Soares-Santos, N. B. Suntzeff, N. Kuropatkin, P. Doel, P. Fosalba, R. A. Bernstein, R. A. Gruendl, R. C. Smith, R. C. Wolf, R. H. Wechsler, R. Miquel, R. Schindler, S. Allam, S. Desai, S. Kuhlmann, T. F. Eifler, T. Jeltema, T. M. C. Abbott, T. S. Li, T. T. Hansen, V. Scarpine, W. G. Hartley","submitted_at":"2017-08-07T20:05:00Z","abstract_excerpt":"We present chemical abundance measurements of three stars in the ultra-faint dwarf galaxy Horologium I, a Milky Way satellite discovered by the Dark Energy Survey. Using high resolution spectroscopic observations we measure the metallicity of the three stars as well as abundance ratios of several $\\alpha$-elements, iron-peak elements, and neutron-capture elements. The abundance pattern is relatively consistent among all three stars, which have a low average metallicity of [Fe/H] $\\sim -2.6$ and are not $\\alpha$-enhanced ([$\\alpha$/Fe] $\\sim 0.0$). This result is unexpected when compared to oth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02290","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":"2026-05-18T00:25:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vFm1gi3fZgm/Mx8nipjop32e3XYuJEUp5DQFP+icH9BKxGO/Y5M0he8WZujDv00zfImLbOAfB9hm2yA8G+6bDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T19:36:27.283195Z"},"content_sha256":"414e2fbcc7edf3876eb68f635cd2f6a4764553a0b59da1799c7298f3dab31be4","schema_version":"1.0","event_id":"sha256:414e2fbcc7edf3876eb68f635cd2f6a4764553a0b59da1799c7298f3dab31be4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y/bundle.json","state_url":"https://pith.science/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y/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":"2026-07-10T19:36:27Z","links":{"resolver":"https://pith.science/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y","bundle":"https://pith.science/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y/bundle.json","state":"https://pith.science/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DPVE5QKTLOC2RCMPDPIZXV5V5Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:DPVE5QKTLOC2RCMPDPIZXV5V5Y","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":"204ff566e165cdc681b77204edf40c20c1a65540db32b7a1b40e75f52e9d771c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-07T20:05:00Z","title_canon_sha256":"7c8390d9db7eb6f42ca7b2acd05649e7e696963a35b6fa0c52cf6edb65b655aa"},"schema_version":"1.0","source":{"id":"1708.02290","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1708.02290","created_at":"2026-05-18T00:25:17Z"},{"alias_kind":"arxiv_version","alias_value":"1708.02290v1","created_at":"2026-05-18T00:25:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1708.02290","created_at":"2026-05-18T00:25:17Z"},{"alias_kind":"pith_short_12","alias_value":"DPVE5QKTLOC2","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"DPVE5QKTLOC2RCMP","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"DPVE5QKT","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:414e2fbcc7edf3876eb68f635cd2f6a4764553a0b59da1799c7298f3dab31be4","target":"graph","created_at":"2026-05-18T00:25:17Z","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 present chemical abundance measurements of three stars in the ultra-faint dwarf galaxy Horologium I, a Milky Way satellite discovered by the Dark Energy Survey. Using high resolution spectroscopic observations we measure the metallicity of the three stars as well as abundance ratios of several $\\alpha$-elements, iron-peak elements, and neutron-capture elements. The abundance pattern is relatively consistent among all three stars, which have a low average metallicity of [Fe/H] $\\sim -2.6$ and are not $\\alpha$-enhanced ([$\\alpha$/Fe] $\\sim 0.0$). This result is unexpected when compared to oth","authors_text":"A. Benoit-L\\'evy, A. B. Pace, A. Carnero Rosell, A. Drlica-Wagner, A. Roodman, A. R. Walker, B. Flaugher, B. Nord, B. Santiago, B. Yanny, C. B. D'Andrea, C. Davis, C. E. Cunha, C. M. Pellegrino, D. Brooks, D. Gruen, D. J. James, D. L. DePoy, D. L. Tucker, D. Q. Nagasawa, D. Thomas, D. W. Gerdes, E. Balbinot, E. Bertin, E. Gaztanaga, E. Krause, E. Sanchez, E. Suchyta, F. B. Abdalla, F. Sobreira, G. Gutierrez, G. Tarle, I. Sevilla-Noarbe, J. Annis, J. Carretero, J. D. Simon, J. Frieman, J. Garc\\'ia-Bellido, J. Gschwend, J. L. Marshall, K. Bechtol, K. Honscheid, K. Kuehn, L. E. Strigari, L. N. da Costa, M. Carrasco Kind, M. March, M. Schubnell, M. Smith, M. Soares-Santos, N. B. Suntzeff, N. Kuropatkin, P. Doel, P. Fosalba, R. A. Bernstein, R. A. Gruendl, R. C. Smith, R. C. Wolf, R. H. Wechsler, R. Miquel, R. Schindler, S. Allam, S. Desai, S. Kuhlmann, T. F. Eifler, T. Jeltema, T. M. C. Abbott, T. S. Li, T. T. Hansen, V. Scarpine, W. G. Hartley","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-07T20:05:00Z","title":"Chemical Abundance Analysis of Three $\\alpha$-Poor, Metal-Poor Stars in the Ultra-Faint Dwarf Galaxy Horologium I"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1708.02290","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:d36690e78975a6c8d3776b949467eae1243da239f5073c6110c855fda8be6381","target":"record","created_at":"2026-05-18T00:25:17Z","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":"204ff566e165cdc681b77204edf40c20c1a65540db32b7a1b40e75f52e9d771c","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-08-07T20:05:00Z","title_canon_sha256":"7c8390d9db7eb6f42ca7b2acd05649e7e696963a35b6fa0c52cf6edb65b655aa"},"schema_version":"1.0","source":{"id":"1708.02290","kind":"arxiv","version":1}},"canonical_sha256":"1bea4ec1535b85a8898f1bd19bd7b5ee1d047d1bf520b0bd2c8d3b8dd77b0633","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1bea4ec1535b85a8898f1bd19bd7b5ee1d047d1bf520b0bd2c8d3b8dd77b0633","first_computed_at":"2026-05-18T00:25:17.779589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:25:17.779589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7sa4vkEsuHzpykGaRmaCaOThn7JmGxv15aOebtPVRpmYRB9WWwrBtsaTeEoK4mOhkdbfJTNDnhrqXzCzJo7FDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:25:17.780140Z","signed_message":"canonical_sha256_bytes"},"source_id":"1708.02290","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d36690e78975a6c8d3776b949467eae1243da239f5073c6110c855fda8be6381","sha256:414e2fbcc7edf3876eb68f635cd2f6a4764553a0b59da1799c7298f3dab31be4"],"state_sha256":"ecd1c075b1e89d26db8d0123118f45f1dea4eec38195e8e9e11a745377ccfd13"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"auqMc5ydvpYN+Tn5PEYRGwsEbXu3qSCr9CAeEQdSikquSnoG7CgkBtGipy6HXa2gdwY1kB9WSDB/T64iQ104BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T19:36:27.285343Z","bundle_sha256":"02464a824121aba8434e0220a64ff8e5772fdc800f61ca70b4af268707499dcc"}}