{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:OML54EWNS3EL5BWFVKTAX6QWI2","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":"c9838f038d8b16549a563bda07d643799fa875d8fbec23f8892b303367101605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-06-26T05:13:29Z","title_canon_sha256":"2186479bccd79499a4e047594cdb8bef959aa313a3d2dd8571d5bb85e0a85d77"},"schema_version":"1.0","source":{"id":"1906.10850","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.10850","created_at":"2026-07-04T23:51:45Z"},{"alias_kind":"arxiv_version","alias_value":"1906.10850v1","created_at":"2026-07-04T23:51:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.10850","created_at":"2026-07-04T23:51:45Z"},{"alias_kind":"pith_short_12","alias_value":"OML54EWNS3EL","created_at":"2026-07-04T23:51:45Z"},{"alias_kind":"pith_short_16","alias_value":"OML54EWNS3EL5BWF","created_at":"2026-07-04T23:51:45Z"},{"alias_kind":"pith_short_8","alias_value":"OML54EWN","created_at":"2026-07-04T23:51:45Z"}],"graph_snapshots":[{"event_id":"sha256:2da8fa7c524b3fa9fedd7105442e489758cfa13fe2dc9a1ccef2aedc91e4250a","target":"graph","created_at":"2026-07-04T23:51:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1906.10850/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the highly dynamic chromosphere, there exist many kinds of small-scale activities, such as spicules, surges, and Ellerman bombs. Here, we report the discovery of a new phenomenon in the chromosphere observed with the New Vacuum Solar Telescope at the Fuxian Solar Observatory. In the high tempo-spatial resolution H$\\alpha$ images, some dark or bright structures are found to fly along the curved trajectory, looking like cannonballs. Their average size, mass, and velocity are about 1.5 $\\times$ 10$^{9}$ km$^{3}$, 1.5 $\\times$ 10$^{8}$ kg, and 56 km s$^{-1}$, respectively. In the simultaneous (","authors_text":"Jun Zhang, Shuhong Yang, Xiaohong Li, Yongyuan Xiang, Zhong Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-06-26T05:13:29Z","title":"Chromospheric cannonballs on the Sun"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.10850","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:c2e8ef13b6bd3f0c4c400f3fdf7d7e5b4ceb8e77fd2036f980e7f36ce638a519","target":"record","created_at":"2026-07-04T23:51:45Z","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":"c9838f038d8b16549a563bda07d643799fa875d8fbec23f8892b303367101605","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-06-26T05:13:29Z","title_canon_sha256":"2186479bccd79499a4e047594cdb8bef959aa313a3d2dd8571d5bb85e0a85d77"},"schema_version":"1.0","source":{"id":"1906.10850","kind":"arxiv","version":1}},"canonical_sha256":"7317de12cd96c8be86c5aaa60bfa16469591272872e5ea132b3a211fb3e322a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7317de12cd96c8be86c5aaa60bfa16469591272872e5ea132b3a211fb3e322a9","first_computed_at":"2026-07-04T23:51:45.397534Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:51:45.397534Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"D//w2Oll0Ijt8q64d49yFT7Ry9vq05Vvctsrx/CwPpjyH/eBP1MJ4WmeX+s8f5elophnnrk+HrcIO60qSjw+AA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:51:45.397974Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.10850","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2e8ef13b6bd3f0c4c400f3fdf7d7e5b4ceb8e77fd2036f980e7f36ce638a519","sha256:2da8fa7c524b3fa9fedd7105442e489758cfa13fe2dc9a1ccef2aedc91e4250a"],"state_sha256":"9828e02ac86b3567ef231269746ccc12c53fd69238a63735526f53a48432eff5"}