{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:EQO4L3LH7KCKMY3QPJ5KCGH42Q","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":"57f37f18385c8b3401bdc2467c905d4f83b54524a96e9de601cc637846540467","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-11T22:45:40Z","title_canon_sha256":"49c60da4ca0f65ca00195d44f7aecbf63bed9d23760a7a710619de10f74a45d2"},"schema_version":"1.0","source":{"id":"1511.03718","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1511.03718","created_at":"2026-05-18T01:17:43Z"},{"alias_kind":"arxiv_version","alias_value":"1511.03718v1","created_at":"2026-05-18T01:17:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1511.03718","created_at":"2026-05-18T01:17:43Z"},{"alias_kind":"pith_short_12","alias_value":"EQO4L3LH7KCK","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"EQO4L3LH7KCKMY3Q","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"EQO4L3LH","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:7e27f9f2e00055fa405e72d55929496750c12b93e45d4d8869bf1a55c4366c8b","target":"graph","created_at":"2026-05-18T01:17:43Z","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":"(abridged) Context: The mechanisms that cause the formation of sunspots are still unclear. Aims: We study the self-organisation of initially uniform sub-equipartition magnetic fields by highly stratified turbulent convection. Methods: We perform simulations of magnetoconvection in Cartesian domains that are $8.5$-$24$ Mm deep and $34$-$96$ Mm wide. We impose either a vertical or a horizontal uniform magnetic field in a convection-driven turbulent flow. Results: We find that super-equipartition magnetic flux concentrations are formed near the surface with domain depths of $12.5$ and $24$ Mm. Th","authors_text":"2, (2) University of Helsinki, 3), 3) ((1) ReSoLVE Center of Excellence, (3) NORDITA, 4, (4) Stockholm University, 5, (5) JILA, 6), (6) LASP, (7) Ben-Gurion University), Aalto, A. Brandenburg (3, I. Rogachevskii (7, M. J. K\\\"apyl\\\"a (1), N. Kleeorin (7, P. J. K\\\"apyl\\\"a (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-11T22:45:40Z","title":"Magnetic flux concentrations from turbulent stratified convection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.03718","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":"sha256:47dfa5f241b54ae9745b5b30e5703dd6be3671bf2d14c2f4cdb834c77089d2d4","target":"record","created_at":"2026-05-18T01:17:43Z","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":"57f37f18385c8b3401bdc2467c905d4f83b54524a96e9de601cc637846540467","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-11-11T22:45:40Z","title_canon_sha256":"49c60da4ca0f65ca00195d44f7aecbf63bed9d23760a7a710619de10f74a45d2"},"schema_version":"1.0","source":{"id":"1511.03718","kind":"arxiv","version":1}},"canonical_sha256":"241dc5ed67fa84a663707a7aa118fcd421aada358071074f000b868717a554c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"241dc5ed67fa84a663707a7aa118fcd421aada358071074f000b868717a554c3","first_computed_at":"2026-05-18T01:17:43.089468Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:17:43.089468Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"I3Ya/x+N1eZNKD5U2XJ9WK/MsUR0XjQb2RKoXvtm2Y6L7b0VmjrJ/c0j3JTs1j/WEBC3ngKPW4MoyifyBYh9Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:17:43.090332Z","signed_message":"canonical_sha256_bytes"},"source_id":"1511.03718","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47dfa5f241b54ae9745b5b30e5703dd6be3671bf2d14c2f4cdb834c77089d2d4","sha256:7e27f9f2e00055fa405e72d55929496750c12b93e45d4d8869bf1a55c4366c8b"],"state_sha256":"cebc05134f904e623d866579b3889ec6687ee4ee8ec007abcac8909ebabfaa50"}