{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:BBEKXUP36AUD5HJTATN53JPRV3","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":"fe6bfa5cad33d87e664fed3db1ed371206b7a2cdaa82ab1dfb54724990b2e2d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-13T20:24:07Z","title_canon_sha256":"fc2669c8247767daeaf26e1b723bb2f60aa7e8e4b0a85debf39aad5aac01c4dc"},"schema_version":"1.0","source":{"id":"2107.06373","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.06373","created_at":"2026-07-05T03:17:15Z"},{"alias_kind":"arxiv_version","alias_value":"2107.06373v1","created_at":"2026-07-05T03:17:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.06373","created_at":"2026-07-05T03:17:15Z"},{"alias_kind":"pith_short_12","alias_value":"BBEKXUP36AUD","created_at":"2026-07-05T03:17:15Z"},{"alias_kind":"pith_short_16","alias_value":"BBEKXUP36AUD5HJT","created_at":"2026-07-05T03:17:15Z"},{"alias_kind":"pith_short_8","alias_value":"BBEKXUP3","created_at":"2026-07-05T03:17:15Z"}],"graph_snapshots":[{"event_id":"sha256:686e763de18d246dc327795f9d6f9bdf72fc2b2ec71f1722492ee69135d47b67","target":"graph","created_at":"2026-07-05T03:17:15Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2107.06373/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The initial-final mass relation (IFMR) represents the total mass lost by a star during the entirety of its evolution from the zero age main sequence to the white dwarf cooling track. The semi-empirical IFMR is largely based on observations of DA white dwarfs, the most common spectral type of white dwarf and the simplest atmosphere to model. We present a first derivation of the semi-empirical IFMR for hydrogen deficient white dwarfs (non-DA) in open star clusters. We identify a possible discrepancy between the DA and non-DA IFMRs, with non-DA white dwarfs $\\approx 0.07 M_\\odot$ less massive at ","authors_text":"(2) Universit\\'e Montr\\'eal, (3) UCO/Lick Observatory), A. B\\'edard (2), Joseph W. Barnett (1), Kurtis A. Williams (1), Michael Bolte (3) ((1) Texas A&M University-Commerce","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-13T20:24:07Z","title":"The Initial-Final Mass Relation for Hydrogen-Deficient White Dwarfs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.06373","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:dc8ace533738a816fd1802c99abff9429fe4c87d84f69a08bca248373a2760ba","target":"record","created_at":"2026-07-05T03:17:15Z","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":"fe6bfa5cad33d87e664fed3db1ed371206b7a2cdaa82ab1dfb54724990b2e2d6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-13T20:24:07Z","title_canon_sha256":"fc2669c8247767daeaf26e1b723bb2f60aa7e8e4b0a85debf39aad5aac01c4dc"},"schema_version":"1.0","source":{"id":"2107.06373","kind":"arxiv","version":1}},"canonical_sha256":"0848abd1fbf0283e9d3304dbdda5f1aed557a0ac8192f216727dec756f4c20db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0848abd1fbf0283e9d3304dbdda5f1aed557a0ac8192f216727dec756f4c20db","first_computed_at":"2026-07-05T03:17:15.657108Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:17:15.657108Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"txni71EUAqofoDZIHYdWQE2DZuLC28iGut47y9o9pRzDO9fzp2sriJApK9mYRMAwCzJR9ze/YmSDkX4zU6qiDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T03:17:15.657591Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.06373","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:dc8ace533738a816fd1802c99abff9429fe4c87d84f69a08bca248373a2760ba","sha256:686e763de18d246dc327795f9d6f9bdf72fc2b2ec71f1722492ee69135d47b67"],"state_sha256":"aa3c5d58cf74e71f03b374db0bb14110d8bc9f57330777c433e617c6279cfa73"}