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The quiet Sun magnetograms observed in the Na I line by Hinode/ SOT is used in this study. Investigated patches range from 10^{17}Mx to 10^{19}Mx. Emergence and cancellation are much less frequent than merging and splitting. The time scale for splitting is found to be ~33 minutes and is independent of the flux contained in the splitt"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1102.1238","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-02-07T07:29:36Z","cross_cats_sorted":[],"title_canon_sha256":"34b042c093032b39baa53e10e634b6caa294df6a5968a5edda3002c4084c4f86","abstract_canon_sha256":"7bced569051e78b9cb69635f3b57282fd772f70a50fafc04aadb8c6eab0407fb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:22:40.162788Z","signature_b64":"BJf5zMI7vchNUpaUo4S6+Xd7zfvW2gU83SjZlKP7v48Sm90YAiIbROaYruQmgV8R29tOenLE6KsR2QISEhq1Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"974c7c1233d724c706eb8567e4994780ee802f4ff96b7f7681878f01cc568c17","last_reissued_at":"2026-05-18T02:22:40.162033Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:22:40.162033Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Detection of flux emergence, splitting, merging, and cancellation in quiet Sun","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"H. 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