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Guided by these findings, a simplified form of the metallicity-dependent explodability can be constructed to alleviate the RSG problem without violating chemical-evolution observables, if net outflows are negligible/absent and the transition takes place at sub-solar metallicity.","weakest_assumption":"The assumption that net outflows from the galactic system are negligible or absent, which is presented as a necessary condition for the simplified explodability model to remain compatible with GCE constraints (abstract)."}},"verdict_id":"3bc054d4-0fd8-4c9a-b0e9-2cab1654c3c5"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:08b36d1aa235477fff2daa0535b4208846b55c9c4b8d9fd1e076d8eb5b1cee93","target":"record","created_at":"2026-05-20T00:00:59Z","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":"1d12d605943bee3b9a8d3c9313384f5f632c675fadbfa8b73ac741fc5f6d1b77","cross_cats_sorted":["astro-ph.GA","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-05-14T22:53:01Z","title_canon_sha256":"b15041e8e065e69999ec7eed8e925f2f10f9ed28493cbbcaf114ccd4a27ccaf8"},"schema_version":"1.0","source":{"id":"2605.15462","kind":"arxiv","version":1}},"canonical_sha256":"8493797dcd8713c2f2e0632193815ee6860a6426240f7f4e99cffe25c40b18b0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8493797dcd8713c2f2e0632193815ee6860a6426240f7f4e99cffe25c40b18b0","first_computed_at":"2026-05-20T00:00:59.820037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:00:59.820037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZgYMQX/YIvvfcrh7vdZzQUMUD/dvnk1hbL88Jmi01xJkvaGAcG+O7w1jBJYjPuEZQphxYcZQcxd7xHQjsXS3Ag==","signature_status":"signed_v1","signed_at":"2026-05-20T00:00:59.820778Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.15462","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08b36d1aa235477fff2daa0535b4208846b55c9c4b8d9fd1e076d8eb5b1cee93","sha256:8bff6c14cb8af1faecc5dd09714d3759051d0ab9eadbb18f51f2674dedb84b36"],"state_sha256":"29246142d817b20867c08bc1a9f5c9a05fb0cb363e1e866e92c28a44c6dde57b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FnzcEfcJY9oJF+tK/ntIHjtfoCDeNyLvdO5+lJeYWaRujHUFP83u8XQqbZV5p2mrN19rzlgkJu3vR6Lz9P8lAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-22T00:59:19.998828Z","bundle_sha256":"1da37576b4ed274a8beef86fca98cf55953bac9ec5103d5c704f0b5cf01bcbc2"}}