{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:NSJDX35G4GVVE56MIWGZKGEMYT","short_pith_number":"pith:NSJDX35G","canonical_record":{"source":{"id":"1404.5893","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-23T17:08:13Z","cross_cats_sorted":[],"title_canon_sha256":"9a38c8ca2d80069430bb2b43610260ab5d67e1234d2b589c8978b78a80a66055","abstract_canon_sha256":"8d6b232fb75731d3225e3198d03faa1e9ef15fdf5a4c4a632a40d69a9e531c67"},"schema_version":"1.0"},"canonical_sha256":"6c923befa6e1ab5277cc458d95188cc4fcc352c8fb6df9823d5733f1573c3966","source":{"kind":"arxiv","id":"1404.5893","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5893","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5893v1","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5893","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"NSJDX35G4GVV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NSJDX35G4GVVE56M","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NSJDX35G","created_at":"2026-05-18T12:28:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:NSJDX35G4GVVE56MIWGZKGEMYT","target":"record","payload":{"canonical_record":{"source":{"id":"1404.5893","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-23T17:08:13Z","cross_cats_sorted":[],"title_canon_sha256":"9a38c8ca2d80069430bb2b43610260ab5d67e1234d2b589c8978b78a80a66055","abstract_canon_sha256":"8d6b232fb75731d3225e3198d03faa1e9ef15fdf5a4c4a632a40d69a9e531c67"},"schema_version":"1.0"},"canonical_sha256":"6c923befa6e1ab5277cc458d95188cc4fcc352c8fb6df9823d5733f1573c3966","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:43:25.778076Z","signature_b64":"wQO6/By2LkqvwcrmThAn6ASnJFVnFaTflpNsnq09uGJ2tQO0YzOjJvwNCH3sJMtJkFYubb3OJlvz6Npg/JpoDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6c923befa6e1ab5277cc458d95188cc4fcc352c8fb6df9823d5733f1573c3966","last_reissued_at":"2026-05-18T01:43:25.777342Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:43:25.777342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1404.5893","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:43:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"E/nuo9ug3NiYLZdLo7S15vy3q3JG7cRW+ScoLePEUZfU+wzl473ROABPg+FVRsCbQ7MKrnHKn637MR8+va8dDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T08:37:40.195562Z"},"content_sha256":"9fd95445d7b5d2350429402d1eea2b5b2c73b0a17ae5ce838612ff99e4b2b9c1","schema_version":"1.0","event_id":"sha256:9fd95445d7b5d2350429402d1eea2b5b2c73b0a17ae5ce838612ff99e4b2b9c1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:NSJDX35G4GVVE56MIWGZKGEMYT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Solar Meridional Circulation and Sunspot Cycle Variability","license":"http://creativecommons.org/licenses/publicdomain/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"David H. Hathaway, Lisa Upton","submitted_at":"2014-04-23T17:08:13Z","abstract_excerpt":"We have measured the meridional motions of the magnetic elements in the Sun's surface layers since 1996 and find systematic and substantial variations. In general the meridional flow speed is fast at cycle minima and slow at cycle maxima. We find that these systematic variations are characterized by a weakening of the meridional flow on the poleward sides of the active (sunspot) latitudes. This can be interpreted as a inflow toward the sunspot zones superimposed on a more general poleward meridional flow profile. We also find variations in the meridional flow which vary from cycle-to-cycle. Th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5893","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:43:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o1Q+MdRI+f6YXLpQbc14Us0Kk8BO94Db0nl3+wV+h84rL+R6ujqDyKn4+5/icZa4uAYBSd+t0LFarGs8x1vpAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T08:37:40.196243Z"},"content_sha256":"9f6b065338ff0ee5fc27006e2d515cbdb7f89458966273febbef55dd4f81ef59","schema_version":"1.0","event_id":"sha256:9f6b065338ff0ee5fc27006e2d515cbdb7f89458966273febbef55dd4f81ef59"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NSJDX35G4GVVE56MIWGZKGEMYT/bundle.json","state_url":"https://pith.science/pith/NSJDX35G4GVVE56MIWGZKGEMYT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NSJDX35G4GVVE56MIWGZKGEMYT/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-06T08:37:40Z","links":{"resolver":"https://pith.science/pith/NSJDX35G4GVVE56MIWGZKGEMYT","bundle":"https://pith.science/pith/NSJDX35G4GVVE56MIWGZKGEMYT/bundle.json","state":"https://pith.science/pith/NSJDX35G4GVVE56MIWGZKGEMYT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NSJDX35G4GVVE56MIWGZKGEMYT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:NSJDX35G4GVVE56MIWGZKGEMYT","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":"8d6b232fb75731d3225e3198d03faa1e9ef15fdf5a4c4a632a40d69a9e531c67","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-23T17:08:13Z","title_canon_sha256":"9a38c8ca2d80069430bb2b43610260ab5d67e1234d2b589c8978b78a80a66055"},"schema_version":"1.0","source":{"id":"1404.5893","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1404.5893","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"arxiv_version","alias_value":"1404.5893v1","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.5893","created_at":"2026-05-18T01:43:25Z"},{"alias_kind":"pith_short_12","alias_value":"NSJDX35G4GVV","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_16","alias_value":"NSJDX35G4GVVE56M","created_at":"2026-05-18T12:28:41Z"},{"alias_kind":"pith_short_8","alias_value":"NSJDX35G","created_at":"2026-05-18T12:28:41Z"}],"graph_snapshots":[{"event_id":"sha256:9f6b065338ff0ee5fc27006e2d515cbdb7f89458966273febbef55dd4f81ef59","target":"graph","created_at":"2026-05-18T01:43:25Z","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":"We have measured the meridional motions of the magnetic elements in the Sun's surface layers since 1996 and find systematic and substantial variations. In general the meridional flow speed is fast at cycle minima and slow at cycle maxima. We find that these systematic variations are characterized by a weakening of the meridional flow on the poleward sides of the active (sunspot) latitudes. This can be interpreted as a inflow toward the sunspot zones superimposed on a more general poleward meridional flow profile. We also find variations in the meridional flow which vary from cycle-to-cycle. Th","authors_text":"David H. Hathaway, Lisa Upton","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-23T17:08:13Z","title":"The Solar Meridional Circulation and Sunspot Cycle Variability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.5893","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":"sha256:9fd95445d7b5d2350429402d1eea2b5b2c73b0a17ae5ce838612ff99e4b2b9c1","target":"record","created_at":"2026-05-18T01:43:25Z","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":"8d6b232fb75731d3225e3198d03faa1e9ef15fdf5a4c4a632a40d69a9e531c67","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"astro-ph.SR","submitted_at":"2014-04-23T17:08:13Z","title_canon_sha256":"9a38c8ca2d80069430bb2b43610260ab5d67e1234d2b589c8978b78a80a66055"},"schema_version":"1.0","source":{"id":"1404.5893","kind":"arxiv","version":1}},"canonical_sha256":"6c923befa6e1ab5277cc458d95188cc4fcc352c8fb6df9823d5733f1573c3966","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6c923befa6e1ab5277cc458d95188cc4fcc352c8fb6df9823d5733f1573c3966","first_computed_at":"2026-05-18T01:43:25.777342Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:25.777342Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wQO6/By2LkqvwcrmThAn6ASnJFVnFaTflpNsnq09uGJ2tQO0YzOjJvwNCH3sJMtJkFYubb3OJlvz6Npg/JpoDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:25.778076Z","signed_message":"canonical_sha256_bytes"},"source_id":"1404.5893","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9fd95445d7b5d2350429402d1eea2b5b2c73b0a17ae5ce838612ff99e4b2b9c1","sha256:9f6b065338ff0ee5fc27006e2d515cbdb7f89458966273febbef55dd4f81ef59"],"state_sha256":"9bdee8279db9622027380fda7961ba85d3ae6fdbaa8d812e126a2480c71d976c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HHf9xchrfvLMhGd/JkS8+JVyJTdGdzpF7qptF322q56NfmtOsHZwI3Gq1Rtx0QhhrKXEEH2tGIuchNJM5H+xAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T08:37:40.199964Z","bundle_sha256":"9056a18bf0f40cc2096a1ced220ef253326e203bbb1235f77f71e8964b7b3f74"}}