{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:QDBUUVZ44RIWSOBJ4OWPBY4PR7","short_pith_number":"pith:QDBUUVZ4","canonical_record":{"source":{"id":"1609.04871","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-15T21:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"2441eca0851a4562d19466b7ac5f18960857b1532f081731b993e8fda30d765d","abstract_canon_sha256":"b11965def38b2170b339f4d91231cc92b7b936d13e5d5dc6ddb56b870f0ee465"},"schema_version":"1.0"},"canonical_sha256":"80c34a573ce451693829e3acf0e38f8fd9fd9f9febfaf53f23dac98aada3fddc","source":{"kind":"arxiv","id":"1609.04871","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.04871","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"arxiv_version","alias_value":"1609.04871v1","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.04871","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"pith_short_12","alias_value":"QDBUUVZ44RIW","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QDBUUVZ44RIWSOBJ","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QDBUUVZ4","created_at":"2026-05-18T12:30:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:QDBUUVZ44RIWSOBJ4OWPBY4PR7","target":"record","payload":{"canonical_record":{"source":{"id":"1609.04871","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-15T21:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"2441eca0851a4562d19466b7ac5f18960857b1532f081731b993e8fda30d765d","abstract_canon_sha256":"b11965def38b2170b339f4d91231cc92b7b936d13e5d5dc6ddb56b870f0ee465"},"schema_version":"1.0"},"canonical_sha256":"80c34a573ce451693829e3acf0e38f8fd9fd9f9febfaf53f23dac98aada3fddc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:57:10.598492Z","signature_b64":"3+Pt8gAx0qXvN5RJ1mrfLHQM+7kGLAl17S5sZKi2BwgVLNFbxWV1Y0F0fOpDFRkER+CTHXVuKEs+m1B/jbOIDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"80c34a573ce451693829e3acf0e38f8fd9fd9f9febfaf53f23dac98aada3fddc","last_reissued_at":"2026-05-18T00:57:10.597755Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:57:10.597755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1609.04871","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":"2026-05-18T00:57:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bpXQVWDEiJE6fY5ijbwe2TBiyKfZes2LG/Opa56Y7V7MsyrmeZ+2pPL6RS+O863sqOmUk9eyADqZPRlLZRlpDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:51:31.790161Z"},"content_sha256":"243487a1e8e67d12af229c50fa9f4359fa7ff1199063e1e87403457dbbc6bc61","schema_version":"1.0","event_id":"sha256:243487a1e8e67d12af229c50fa9f4359fa7ff1199063e1e87403457dbbc6bc61"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:QDBUUVZ44RIWSOBJ4OWPBY4PR7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The formation of an inverse S-shaped active-region filament driven by sunspot motion and magnetic reconnection","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"E.R. Priest, J.C. Wang, L.H. Yang, Q.L. Guo, X.L. Yan, Z.K. Xue","submitted_at":"2016-09-15T21:56:34Z","abstract_excerpt":"We present a detailed study of the formation of an inverse S-shaped filament prior to its eruption in active region NOAA 11884 from October 31 to November 2, 2013. In the initial stage, clockwise rotation of a small positive sunspot around the main negative trailing sunspot formed a curved filament. Then the small sunspot cancelled with negative magnetic flux to create a longer active-region filament with an inverse S-shape. At the cancellation site a brightening was observed in UV and EUV images and bright material was transferred to the filament. Later the filament erupted after cancellation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.04871","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":"2026-05-18T00:57:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z0qlx6lCa6w69cqbHR8bdDREzkHZ3PAnUg8TYGYsYp214NBFP0g2wHRgzIan8+52+qus35nmp6dRPboqz3qLAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T16:51:31.790897Z"},"content_sha256":"d20a717b4ff5cf617b835ed0d6df8c4f199a9830bbf66637d93bf4af13b6973c","schema_version":"1.0","event_id":"sha256:d20a717b4ff5cf617b835ed0d6df8c4f199a9830bbf66637d93bf4af13b6973c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7/bundle.json","state_url":"https://pith.science/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7/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":"2026-05-26T16:51:31Z","links":{"resolver":"https://pith.science/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7","bundle":"https://pith.science/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7/bundle.json","state":"https://pith.science/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QDBUUVZ44RIWSOBJ4OWPBY4PR7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:QDBUUVZ44RIWSOBJ4OWPBY4PR7","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":"b11965def38b2170b339f4d91231cc92b7b936d13e5d5dc6ddb56b870f0ee465","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-15T21:56:34Z","title_canon_sha256":"2441eca0851a4562d19466b7ac5f18960857b1532f081731b993e8fda30d765d"},"schema_version":"1.0","source":{"id":"1609.04871","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1609.04871","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"arxiv_version","alias_value":"1609.04871v1","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1609.04871","created_at":"2026-05-18T00:57:10Z"},{"alias_kind":"pith_short_12","alias_value":"QDBUUVZ44RIW","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_16","alias_value":"QDBUUVZ44RIWSOBJ","created_at":"2026-05-18T12:30:39Z"},{"alias_kind":"pith_short_8","alias_value":"QDBUUVZ4","created_at":"2026-05-18T12:30:39Z"}],"graph_snapshots":[{"event_id":"sha256:d20a717b4ff5cf617b835ed0d6df8c4f199a9830bbf66637d93bf4af13b6973c","target":"graph","created_at":"2026-05-18T00:57:10Z","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 present a detailed study of the formation of an inverse S-shaped filament prior to its eruption in active region NOAA 11884 from October 31 to November 2, 2013. In the initial stage, clockwise rotation of a small positive sunspot around the main negative trailing sunspot formed a curved filament. Then the small sunspot cancelled with negative magnetic flux to create a longer active-region filament with an inverse S-shape. At the cancellation site a brightening was observed in UV and EUV images and bright material was transferred to the filament. Later the filament erupted after cancellation","authors_text":"E.R. Priest, J.C. Wang, L.H. Yang, Q.L. Guo, X.L. Yan, Z.K. Xue","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-15T21:56:34Z","title":"The formation of an inverse S-shaped active-region filament driven by sunspot motion and magnetic reconnection"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.04871","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":"sha256:243487a1e8e67d12af229c50fa9f4359fa7ff1199063e1e87403457dbbc6bc61","target":"record","created_at":"2026-05-18T00:57:10Z","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":"b11965def38b2170b339f4d91231cc92b7b936d13e5d5dc6ddb56b870f0ee465","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-09-15T21:56:34Z","title_canon_sha256":"2441eca0851a4562d19466b7ac5f18960857b1532f081731b993e8fda30d765d"},"schema_version":"1.0","source":{"id":"1609.04871","kind":"arxiv","version":1}},"canonical_sha256":"80c34a573ce451693829e3acf0e38f8fd9fd9f9febfaf53f23dac98aada3fddc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"80c34a573ce451693829e3acf0e38f8fd9fd9f9febfaf53f23dac98aada3fddc","first_computed_at":"2026-05-18T00:57:10.597755Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:57:10.597755Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3+Pt8gAx0qXvN5RJ1mrfLHQM+7kGLAl17S5sZKi2BwgVLNFbxWV1Y0F0fOpDFRkER+CTHXVuKEs+m1B/jbOIDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:57:10.598492Z","signed_message":"canonical_sha256_bytes"},"source_id":"1609.04871","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:243487a1e8e67d12af229c50fa9f4359fa7ff1199063e1e87403457dbbc6bc61","sha256:d20a717b4ff5cf617b835ed0d6df8c4f199a9830bbf66637d93bf4af13b6973c"],"state_sha256":"8090818fbfb934ef5bcbeea6b605fee5ec79b3e23a1e1d25036fd8e5757fa440"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nwvQuh65yS2+l7ifYPrcozKLlr6dOtOz8/JZ+Exn0QdLhnB4kS74MXWE4GjW1lIwOl13u79BtxuTki+5516BCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T16:51:31.794485Z","bundle_sha256":"0918e458a739098de938b5bfe2b6d7190da7a8c4b77abf6eb3c6855daa86d5ea"}}