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For a weak hydrological cycle, representative of warm Pliocene-like climate conditions, sinking occurs in both basins, with symmetry breaking only when one basin is sufficiently more evaporative.","weakest_assumption":"The two-basin conceptual ocean model with simplified geometry and freshwater forcing sufficiently captures the essential mechanisms that determine the existence and stability of overturning states in the real global ocean."}},"verdict_id":"6a80685c-d694-45df-a63b-281ad432cbdf"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:4592be7d0d7b671f63f66e182018e519c18dc1e061e9c67a215e72ba35d46e7f","target":"record","created_at":"2026-05-20T00:01:13Z","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":"5e94f2a184292b6b262a2f78e0fd0bb0a983d171ff0554e7773854b989959369","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.ao-ph","submitted_at":"2026-05-15T07:44:16Z","title_canon_sha256":"b5f3a21b8ec40502045ddb1abbe256f6939d479b6c774c7f0224317133d87c16"},"schema_version":"1.0","source":{"id":"2605.15699","kind":"arxiv","version":1}},"canonical_sha256":"f915685c0d8e91c5ad2995ee8d3edce9e9c5965a4fe2476f41f748bb5f5e9e31","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f915685c0d8e91c5ad2995ee8d3edce9e9c5965a4fe2476f41f748bb5f5e9e31","first_computed_at":"2026-05-20T00:01:13.178796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-20T00:01:13.178796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fgRuzlZwAYyGJKFXV7S/0CsyvyGiwY2O8Y3550yJwDfFtOyyg8jl9D9ywYlZ09rcya7Mlpsq1Ki7gP98FEWzCg==","signature_status":"signed_v1","signed_at":"2026-05-20T00:01:13.179786Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.15699","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4592be7d0d7b671f63f66e182018e519c18dc1e061e9c67a215e72ba35d46e7f","sha256:f0488a587650309b213e586e6f363e4f05e4aeb0c44aa385f973207b9cf92177"],"state_sha256":"239b0cd7063e894abddbb4b05a38cfbb6127f5f1614f3fed20ae21e2871c1a3c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NbE+fGlh2ftzhE/UJ5z9UZ9/k+bmujORpXusZCwN11h7P/BKcKw+sPEXOzmxn5RgFuz/TWbySfG+hseV075vCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:55:23.532217Z","bundle_sha256":"321b15a65230f6bce4f9df7f3f5da29f90e1f617285e0a9355618d751b0fe142"}}