{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:FQQSMSRMCEI5E2MPOYG7BL4JAR","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":"bd5e82f2f762724f0d1f1218dab6e63fd1c0cf3218619acd1168e504a1cd5089","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-14T13:51:35Z","title_canon_sha256":"efe0514094497210592cc9dbe6730409a84024812f6bb4257ff9ea8f8d00991d"},"schema_version":"1.0","source":{"id":"1610.04463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.04463","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"arxiv_version","alias_value":"1610.04463v1","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.04463","created_at":"2026-05-18T01:01:21Z"},{"alias_kind":"pith_short_12","alias_value":"FQQSMSRMCEI5","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_16","alias_value":"FQQSMSRMCEI5E2MP","created_at":"2026-05-18T12:30:15Z"},{"alias_kind":"pith_short_8","alias_value":"FQQSMSRM","created_at":"2026-05-18T12:30:15Z"}],"graph_snapshots":[{"event_id":"sha256:b048ef2b51bc86a9603c75001354662583fcbc0f9e3f95459dfb5f6b54b127cd","target":"graph","created_at":"2026-05-18T01:01:21Z","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":"Zinc metal-silicate fractionation provides experimental access to the conditions of core formation and Zn has been used to estimate the S contents of the Earth's core and of the bulk Earth, assuming that they share similar volatility and that Zn was not partitioned into the Earth's core. We have conducted a suite of partitioning experiments to characterize Zn metal-silicate elemental and isotopic fractionation as a function of time, temperature, and composition. Experiments were conducted at temperatures from 1473-2273K, with run durations from 5-240 minutes for four starting materials. Chemic","authors_text":"B. Mahan, E.A. Pringle, F. Moynier, J. Siebert","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-14T13:51:35Z","title":"Elemental partitioning and isotopic fractionation of Zn between metal and silicate and geochemical estimation of the S content of the Earth's core"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.04463","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:aa965d0f2616fd77984ab41d916913c9b5a46397b73211a13e6fa5b82e84125b","target":"record","created_at":"2026-05-18T01:01:21Z","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":"bd5e82f2f762724f0d1f1218dab6e63fd1c0cf3218619acd1168e504a1cd5089","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2016-10-14T13:51:35Z","title_canon_sha256":"efe0514094497210592cc9dbe6730409a84024812f6bb4257ff9ea8f8d00991d"},"schema_version":"1.0","source":{"id":"1610.04463","kind":"arxiv","version":1}},"canonical_sha256":"2c21264a2c1111d2698f760df0af89045b1f3c1305268ca754fc15bf7cf9edaa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c21264a2c1111d2698f760df0af89045b1f3c1305268ca754fc15bf7cf9edaa","first_computed_at":"2026-05-18T01:01:21.819520Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:01:21.819520Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bBZzf/RrCm8JtuLibFSQc3xm8EaOlEBrDB3LzrbvoVKpC/Y0yDXjBvo188Q6KjARvu6vqBsel7NLogDWM6jyBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:01:21.819990Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.04463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aa965d0f2616fd77984ab41d916913c9b5a46397b73211a13e6fa5b82e84125b","sha256:b048ef2b51bc86a9603c75001354662583fcbc0f9e3f95459dfb5f6b54b127cd"],"state_sha256":"5bdc8e4cf0c2c529788e5d1ce68c8c224a82762c012dbbe1b79ef11bae7b2b13"}