{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:LIRGM5PVXWJYHQAD72JVOBMNDB","short_pith_number":"pith:LIRGM5PV","canonical_record":{"source":{"id":"1711.04410","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-13T03:44:58Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c8e6a8fc9b5cce291b72e4a778c80c2b69bcc09063c7f6532fd918201a3f167c","abstract_canon_sha256":"a122e9951cc0c86dd4f44428f30602d83532f9c90e83309439e15008faa79ad6"},"schema_version":"1.0"},"canonical_sha256":"5a226675f5bd9383c003fe9357058d187b861b7afe24b4d85894976f87b00cb5","source":{"kind":"arxiv","id":"1711.04410","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.04410","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1711.04410v1","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.04410","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"LIRGM5PVXWJY","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LIRGM5PVXWJYHQAD","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LIRGM5PV","created_at":"2026-05-18T12:31:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:LIRGM5PVXWJYHQAD72JVOBMNDB","target":"record","payload":{"canonical_record":{"source":{"id":"1711.04410","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-13T03:44:58Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"c8e6a8fc9b5cce291b72e4a778c80c2b69bcc09063c7f6532fd918201a3f167c","abstract_canon_sha256":"a122e9951cc0c86dd4f44428f30602d83532f9c90e83309439e15008faa79ad6"},"schema_version":"1.0"},"canonical_sha256":"5a226675f5bd9383c003fe9357058d187b861b7afe24b4d85894976f87b00cb5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:02:01.878793Z","signature_b64":"V9/bEqggE5jsi+xtkLCB5wUVQPfOVU1eXUr/9zbUYyLMishndKDf2RVw43bcGk2Cmrno7lGzPIvSHh7UeUWCCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a226675f5bd9383c003fe9357058d187b861b7afe24b4d85894976f87b00cb5","last_reissued_at":"2026-05-18T00:02:01.878093Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:02:01.878093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1711.04410","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":"2026-05-18T00:02:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ssYJj0vq2lLeGxhH2Pfow5UKVqDLqCti0IrEJ+V+GH8QgbDW4x6P+lelINnoAshIlYZSeKKpVGJzS1Baooa7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:40:03.259534Z"},"content_sha256":"3e58fec912a3aa7a5643ddb0744bf3910dae63624f0784a8b138ba6eee55d55c","schema_version":"1.0","event_id":"sha256:3e58fec912a3aa7a5643ddb0744bf3910dae63624f0784a8b138ba6eee55d55c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:LIRGM5PVXWJYHQAD72JVOBMNDB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"JINAbase: A database for chemical abundances of metal-poor stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Abdu Abohalima (MIT, Anna Frebel (MIT, JINA)","submitted_at":"2017-11-13T03:44:58Z","abstract_excerpt":"Reconstructing the chemical evolution of the Milky Way is crucial for understanding the formation of stars, planets, and galaxies throughout cosmic time. Different studies associated with element production in the early universe and how elements are incorporated into gas and stars are necessary to piece together how the elements evolved. These include establishing chemical abundance trends, as set by metal-poor stars, comparing nucleosynthesis yield predictions with stellar abundance data, and theoretical modeling of chemical evolution. To aid these studies, we have collected chemical abundanc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.04410","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":"2026-05-18T00:02:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3RClpvjskAUJ4UsiBysiH2nY92mq0HSYuPUK3wzmnNKWeua5pp7A9V7hFnverqXMVe9J0CxZwl+2L2spqoQIBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T02:40:03.260056Z"},"content_sha256":"0014df0e09928633ec50c0df20bdf14e8bc53ea95171f6161855e1aedf912592","schema_version":"1.0","event_id":"sha256:0014df0e09928633ec50c0df20bdf14e8bc53ea95171f6161855e1aedf912592"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LIRGM5PVXWJYHQAD72JVOBMNDB/bundle.json","state_url":"https://pith.science/pith/LIRGM5PVXWJYHQAD72JVOBMNDB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LIRGM5PVXWJYHQAD72JVOBMNDB/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":"2026-05-26T02:40:03Z","links":{"resolver":"https://pith.science/pith/LIRGM5PVXWJYHQAD72JVOBMNDB","bundle":"https://pith.science/pith/LIRGM5PVXWJYHQAD72JVOBMNDB/bundle.json","state":"https://pith.science/pith/LIRGM5PVXWJYHQAD72JVOBMNDB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LIRGM5PVXWJYHQAD72JVOBMNDB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:LIRGM5PVXWJYHQAD72JVOBMNDB","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":"a122e9951cc0c86dd4f44428f30602d83532f9c90e83309439e15008faa79ad6","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-13T03:44:58Z","title_canon_sha256":"c8e6a8fc9b5cce291b72e4a778c80c2b69bcc09063c7f6532fd918201a3f167c"},"schema_version":"1.0","source":{"id":"1711.04410","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1711.04410","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1711.04410v1","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.04410","created_at":"2026-05-18T00:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"LIRGM5PVXWJY","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_16","alias_value":"LIRGM5PVXWJYHQAD","created_at":"2026-05-18T12:31:28Z"},{"alias_kind":"pith_short_8","alias_value":"LIRGM5PV","created_at":"2026-05-18T12:31:28Z"}],"graph_snapshots":[{"event_id":"sha256:0014df0e09928633ec50c0df20bdf14e8bc53ea95171f6161855e1aedf912592","target":"graph","created_at":"2026-05-18T00:02:01Z","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":"Reconstructing the chemical evolution of the Milky Way is crucial for understanding the formation of stars, planets, and galaxies throughout cosmic time. Different studies associated with element production in the early universe and how elements are incorporated into gas and stars are necessary to piece together how the elements evolved. These include establishing chemical abundance trends, as set by metal-poor stars, comparing nucleosynthesis yield predictions with stellar abundance data, and theoretical modeling of chemical evolution. To aid these studies, we have collected chemical abundanc","authors_text":"Abdu Abohalima (MIT, Anna Frebel (MIT, JINA)","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-13T03:44:58Z","title":"JINAbase: A database for chemical abundances of metal-poor stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.04410","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":"sha256:3e58fec912a3aa7a5643ddb0744bf3910dae63624f0784a8b138ba6eee55d55c","target":"record","created_at":"2026-05-18T00:02:01Z","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":"a122e9951cc0c86dd4f44428f30602d83532f9c90e83309439e15008faa79ad6","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-11-13T03:44:58Z","title_canon_sha256":"c8e6a8fc9b5cce291b72e4a778c80c2b69bcc09063c7f6532fd918201a3f167c"},"schema_version":"1.0","source":{"id":"1711.04410","kind":"arxiv","version":1}},"canonical_sha256":"5a226675f5bd9383c003fe9357058d187b861b7afe24b4d85894976f87b00cb5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5a226675f5bd9383c003fe9357058d187b861b7afe24b4d85894976f87b00cb5","first_computed_at":"2026-05-18T00:02:01.878093Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:02:01.878093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V9/bEqggE5jsi+xtkLCB5wUVQPfOVU1eXUr/9zbUYyLMishndKDf2RVw43bcGk2Cmrno7lGzPIvSHh7UeUWCCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:02:01.878793Z","signed_message":"canonical_sha256_bytes"},"source_id":"1711.04410","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e58fec912a3aa7a5643ddb0744bf3910dae63624f0784a8b138ba6eee55d55c","sha256:0014df0e09928633ec50c0df20bdf14e8bc53ea95171f6161855e1aedf912592"],"state_sha256":"01eba34dd80035147a8481c00aa253c8061573a4798d09aa6ed78f20053ba4c2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3sK6wKQhehMrNGjseaBPQaM+xHkGawiemCU6+FK+Sn9PhFIlSMkRGpXgqWy1Wa0xwj7i02OhUM5nJF1OLa9dCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T02:40:03.262840Z","bundle_sha256":"8b96741b3aa84c1fe76710a2bcdc7221e251e9359ccb8cc22cb2abd1b0211811"}}