{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:OF7GR6DUQOUUXUVRR7KTOQBEU3","short_pith_number":"pith:OF7GR6DU","canonical_record":{"source":{"id":"1509.08414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-28T17:56:36Z","cross_cats_sorted":[],"title_canon_sha256":"89f218daf324b4504a810c20a6a2ed4e389e036863e4c02f78fc4bd714f147f8","abstract_canon_sha256":"604f38a628aa297653de68b15e8d15dcc2bd81f3f60582c9171fc45cca971c5c"},"schema_version":"1.0"},"canonical_sha256":"717e68f87483a94bd2b18fd5374024a6ebbdec7f65d6d5ca4fd8dbd3a01c95ac","source":{"kind":"arxiv","id":"1509.08414","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08414","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08414v1","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08414","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"OF7GR6DUQOUU","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OF7GR6DUQOUUXUVR","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OF7GR6DU","created_at":"2026-05-18T12:29:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:OF7GR6DUQOUUXUVRR7KTOQBEU3","target":"record","payload":{"canonical_record":{"source":{"id":"1509.08414","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-28T17:56:36Z","cross_cats_sorted":[],"title_canon_sha256":"89f218daf324b4504a810c20a6a2ed4e389e036863e4c02f78fc4bd714f147f8","abstract_canon_sha256":"604f38a628aa297653de68b15e8d15dcc2bd81f3f60582c9171fc45cca971c5c"},"schema_version":"1.0"},"canonical_sha256":"717e68f87483a94bd2b18fd5374024a6ebbdec7f65d6d5ca4fd8dbd3a01c95ac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:29:44.405707Z","signature_b64":"OHKgdPK7R6jmgaAt4hPbrwkhpmuTGP5WcI3PDH1vIjT5W4nyOS+94VTkDQPDXFf2ZCHRP1MAOO+XRbNQtyo+DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"717e68f87483a94bd2b18fd5374024a6ebbdec7f65d6d5ca4fd8dbd3a01c95ac","last_reissued_at":"2026-05-18T01:29:44.405021Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:29:44.405021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.08414","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bNJo+0KwJWtFVs0bvc8gGYA5+QhtcBuRVuaHYNLUSn1ayhmbbygwu15fPDAkuB8S31ckVew5UlkxBC+0GGBuCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:48:42.116774Z"},"content_sha256":"f437cde48490da5a4222c6435099d0032c5dacbc1f4e84c8b349a8cafac5ab4a","schema_version":"1.0","event_id":"sha256:f437cde48490da5a4222c6435099d0032c5dacbc1f4e84c8b349a8cafac5ab4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:OF7GR6DUQOUUXUVRR7KTOQBEU3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Circular-ribbon Solar Flare Following an Asymmetric Filament Eruption","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Chang Liu, Etienne Pariat, Haimin Wang, Jeongwoo Lee, Lucia Kleint, Na Deng, Rui Liu, Thomas Wiegelmann, Yang Liu","submitted_at":"2015-09-28T17:56:36Z","abstract_excerpt":"The dynamic properties of flare ribbons and the often associated filament eruptions can provide crucial information on the flaring coronal magnetic field. This Letter analyzes the GOES-class X1.0 flare on 2014 March 29 (SOL2014-03-29T17:48), in which we found an asymmetric eruption of a sigmoidal filament and an ensuing circular flare ribbon. Initially both EUV images and a preflare nonlinear force-free field model show that the filament is embedded in magnetic fields with a fan-spine-like structure. In the first phase, which is defined by a weak but still increasing X-ray emission, the wester"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08414","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":"2026-05-18T01:29:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"o3AkywNk6YfmyDJCrluwHfNa7mNYPP+5PUVlqA7ggtWMm+iodT5uhI4ZAJfaqTpWt6LNZ3bY8vtoNZCu9wdyBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:48:42.117462Z"},"content_sha256":"d96afaf27815ef0fd1803848838addf1a261f3d44bb051cc9374df549bc8f137","schema_version":"1.0","event_id":"sha256:d96afaf27815ef0fd1803848838addf1a261f3d44bb051cc9374df549bc8f137"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3/bundle.json","state_url":"https://pith.science/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3/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":"2026-05-25T16:48:42Z","links":{"resolver":"https://pith.science/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3","bundle":"https://pith.science/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3/bundle.json","state":"https://pith.science/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OF7GR6DUQOUUXUVRR7KTOQBEU3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:OF7GR6DUQOUUXUVRR7KTOQBEU3","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":"604f38a628aa297653de68b15e8d15dcc2bd81f3f60582c9171fc45cca971c5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-28T17:56:36Z","title_canon_sha256":"89f218daf324b4504a810c20a6a2ed4e389e036863e4c02f78fc4bd714f147f8"},"schema_version":"1.0","source":{"id":"1509.08414","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08414","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08414v1","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08414","created_at":"2026-05-18T01:29:44Z"},{"alias_kind":"pith_short_12","alias_value":"OF7GR6DUQOUU","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_16","alias_value":"OF7GR6DUQOUUXUVR","created_at":"2026-05-18T12:29:34Z"},{"alias_kind":"pith_short_8","alias_value":"OF7GR6DU","created_at":"2026-05-18T12:29:34Z"}],"graph_snapshots":[{"event_id":"sha256:d96afaf27815ef0fd1803848838addf1a261f3d44bb051cc9374df549bc8f137","target":"graph","created_at":"2026-05-18T01:29:44Z","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":"The dynamic properties of flare ribbons and the often associated filament eruptions can provide crucial information on the flaring coronal magnetic field. This Letter analyzes the GOES-class X1.0 flare on 2014 March 29 (SOL2014-03-29T17:48), in which we found an asymmetric eruption of a sigmoidal filament and an ensuing circular flare ribbon. Initially both EUV images and a preflare nonlinear force-free field model show that the filament is embedded in magnetic fields with a fan-spine-like structure. In the first phase, which is defined by a weak but still increasing X-ray emission, the wester","authors_text":"Chang Liu, Etienne Pariat, Haimin Wang, Jeongwoo Lee, Lucia Kleint, Na Deng, Rui Liu, Thomas Wiegelmann, Yang Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-28T17:56:36Z","title":"A Circular-ribbon Solar Flare Following an Asymmetric Filament Eruption"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08414","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:f437cde48490da5a4222c6435099d0032c5dacbc1f4e84c8b349a8cafac5ab4a","target":"record","created_at":"2026-05-18T01:29:44Z","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":"604f38a628aa297653de68b15e8d15dcc2bd81f3f60582c9171fc45cca971c5c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-28T17:56:36Z","title_canon_sha256":"89f218daf324b4504a810c20a6a2ed4e389e036863e4c02f78fc4bd714f147f8"},"schema_version":"1.0","source":{"id":"1509.08414","kind":"arxiv","version":1}},"canonical_sha256":"717e68f87483a94bd2b18fd5374024a6ebbdec7f65d6d5ca4fd8dbd3a01c95ac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"717e68f87483a94bd2b18fd5374024a6ebbdec7f65d6d5ca4fd8dbd3a01c95ac","first_computed_at":"2026-05-18T01:29:44.405021Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:29:44.405021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OHKgdPK7R6jmgaAt4hPbrwkhpmuTGP5WcI3PDH1vIjT5W4nyOS+94VTkDQPDXFf2ZCHRP1MAOO+XRbNQtyo+DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:29:44.405707Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.08414","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f437cde48490da5a4222c6435099d0032c5dacbc1f4e84c8b349a8cafac5ab4a","sha256:d96afaf27815ef0fd1803848838addf1a261f3d44bb051cc9374df549bc8f137"],"state_sha256":"7ecc4a2431d034c0ffc5fd556b2b0d590d4b701b6cdeec5bdcff45646b670e28"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/xrxtiipI+DLoAFY/SeqqE/v7OuLqSWifBgqaOcdq41pi5VFPojlsktzkh+aXrraEHyoGp2vvYKDj3wkTMbwDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:48:42.121009Z","bundle_sha256":"666a3fabdafde87e00eee7860cf2b6dfe0521a667a13d26173bda58799545521"}}