{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:3HYR2ZJ3Y6DVBXIS6N7IUYRNST","short_pith_number":"pith:3HYR2ZJ3","canonical_record":{"source":{"id":"1507.03766","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-14T08:42:54Z","cross_cats_sorted":[],"title_canon_sha256":"7339faf9a8ba9073f3b58b63f668f7ec358fa197b2f1152b7898890f8509c851","abstract_canon_sha256":"e0bb8c9f767825bdb395d5445728b6c8ac17b292d9ec56c9a23780f91f9c22c9"},"schema_version":"1.0"},"canonical_sha256":"d9f11d653bc78750dd12f37e8a622d94e03c6801ddcc2fd5b5bb30e67238d6dc","source":{"kind":"arxiv","id":"1507.03766","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03766","created_at":"2026-05-18T01:35:44Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03766v1","created_at":"2026-05-18T01:35:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03766","created_at":"2026-05-18T01:35:44Z"},{"alias_kind":"pith_short_12","alias_value":"3HYR2ZJ3Y6DV","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"3HYR2ZJ3Y6DVBXIS","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"3HYR2ZJ3","created_at":"2026-05-18T12:29:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:3HYR2ZJ3Y6DVBXIS6N7IUYRNST","target":"record","payload":{"canonical_record":{"source":{"id":"1507.03766","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-14T08:42:54Z","cross_cats_sorted":[],"title_canon_sha256":"7339faf9a8ba9073f3b58b63f668f7ec358fa197b2f1152b7898890f8509c851","abstract_canon_sha256":"e0bb8c9f767825bdb395d5445728b6c8ac17b292d9ec56c9a23780f91f9c22c9"},"schema_version":"1.0"},"canonical_sha256":"d9f11d653bc78750dd12f37e8a622d94e03c6801ddcc2fd5b5bb30e67238d6dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:44.556602Z","signature_b64":"c3JO3bATXekImayS/fRkHqTwJ+K+w6QEMBc5sPEXEXMx16Iw+geCjraoTYk+QbcrHK5oAui1fVVH99+yhZEZDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d9f11d653bc78750dd12f37e8a622d94e03c6801ddcc2fd5b5bb30e67238d6dc","last_reissued_at":"2026-05-18T01:35:44.556123Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:44.556123Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.03766","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":"2026-05-18T01:35:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2vspAuzGkofJASMqdXiX2TgWqZ39Agi0wjv4E8BIeT2U+GBhopMsPeaJ0yZVnG53y4iIxHAW7ZE/cnnRXQHyBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:37:05.528558Z"},"content_sha256":"c49f75e211fab9f073550129e729775e227a8a158d175ac82056b666584a4b3c","schema_version":"1.0","event_id":"sha256:c49f75e211fab9f073550129e729775e227a8a158d175ac82056b666584a4b3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:3HYR2ZJ3Y6DVBXIS6N7IUYRNST","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"How Common are Hot Magnetic Flux Ropes in the Low Solar Corona? A Statistical Study of EUV Observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Nindos, A. Vourlidas, C. Tagikas, S. Patsourakos","submitted_at":"2015-07-14T08:42:54Z","abstract_excerpt":"We use data at 131, 171, and 304 A from the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO) to search for hot flux ropes in 141 M-class and X-class solar flares that occurred at solar longitudes equal to or larger than 50 degrees. Half of the flares were associated with coronal mass ejections (CMEs). The goal of our survey is to assess the frequency of hot flux ropes in large flares irrespective of their formation time relative to the onset of eruptions. The flux ropes were identified in 131 A images using morphological criteria and their high temperatures were c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03766","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":"2026-05-18T01:35:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jU6UG3K3p/bKteIlS9T5DPTOGZ8Vd4d3TjW3Tb2eNY+FK8QIPrg2bQyWG6/yJ3FEQKUkbFmlXUJeZxe303ZJCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-29T20:37:05.529332Z"},"content_sha256":"d91a10f779165c14c89cfe8e52a32ce4938ec32e94b6168823266416c7bd3535","schema_version":"1.0","event_id":"sha256:d91a10f779165c14c89cfe8e52a32ce4938ec32e94b6168823266416c7bd3535"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST/bundle.json","state_url":"https://pith.science/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST/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":"2026-05-29T20:37:05Z","links":{"resolver":"https://pith.science/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST","bundle":"https://pith.science/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST/bundle.json","state":"https://pith.science/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3HYR2ZJ3Y6DVBXIS6N7IUYRNST/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:3HYR2ZJ3Y6DVBXIS6N7IUYRNST","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":"e0bb8c9f767825bdb395d5445728b6c8ac17b292d9ec56c9a23780f91f9c22c9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-14T08:42:54Z","title_canon_sha256":"7339faf9a8ba9073f3b58b63f668f7ec358fa197b2f1152b7898890f8509c851"},"schema_version":"1.0","source":{"id":"1507.03766","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.03766","created_at":"2026-05-18T01:35:44Z"},{"alias_kind":"arxiv_version","alias_value":"1507.03766v1","created_at":"2026-05-18T01:35:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.03766","created_at":"2026-05-18T01:35:44Z"},{"alias_kind":"pith_short_12","alias_value":"3HYR2ZJ3Y6DV","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_16","alias_value":"3HYR2ZJ3Y6DVBXIS","created_at":"2026-05-18T12:29:02Z"},{"alias_kind":"pith_short_8","alias_value":"3HYR2ZJ3","created_at":"2026-05-18T12:29:02Z"}],"graph_snapshots":[{"event_id":"sha256:d91a10f779165c14c89cfe8e52a32ce4938ec32e94b6168823266416c7bd3535","target":"graph","created_at":"2026-05-18T01:35:44Z","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":"We use data at 131, 171, and 304 A from the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO) to search for hot flux ropes in 141 M-class and X-class solar flares that occurred at solar longitudes equal to or larger than 50 degrees. Half of the flares were associated with coronal mass ejections (CMEs). The goal of our survey is to assess the frequency of hot flux ropes in large flares irrespective of their formation time relative to the onset of eruptions. The flux ropes were identified in 131 A images using morphological criteria and their high temperatures were c","authors_text":"A. Nindos, A. Vourlidas, C. Tagikas, S. Patsourakos","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-14T08:42:54Z","title":"How Common are Hot Magnetic Flux Ropes in the Low Solar Corona? A Statistical Study of EUV Observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.03766","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:c49f75e211fab9f073550129e729775e227a8a158d175ac82056b666584a4b3c","target":"record","created_at":"2026-05-18T01:35:44Z","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":"e0bb8c9f767825bdb395d5445728b6c8ac17b292d9ec56c9a23780f91f9c22c9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-07-14T08:42:54Z","title_canon_sha256":"7339faf9a8ba9073f3b58b63f668f7ec358fa197b2f1152b7898890f8509c851"},"schema_version":"1.0","source":{"id":"1507.03766","kind":"arxiv","version":1}},"canonical_sha256":"d9f11d653bc78750dd12f37e8a622d94e03c6801ddcc2fd5b5bb30e67238d6dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d9f11d653bc78750dd12f37e8a622d94e03c6801ddcc2fd5b5bb30e67238d6dc","first_computed_at":"2026-05-18T01:35:44.556123Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:35:44.556123Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c3JO3bATXekImayS/fRkHqTwJ+K+w6QEMBc5sPEXEXMx16Iw+geCjraoTYk+QbcrHK5oAui1fVVH99+yhZEZDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:35:44.556602Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.03766","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c49f75e211fab9f073550129e729775e227a8a158d175ac82056b666584a4b3c","sha256:d91a10f779165c14c89cfe8e52a32ce4938ec32e94b6168823266416c7bd3535"],"state_sha256":"de696332fd42d68bc170ca8b4498c0b82c1dd2d5be2b7b7960d295757218e4c5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EwCVWllyGcnpXOzR+OUvv+MRKQJOV5pm9c/G3AJ3ulX4T9tUUc365DhwHxR2BTuBsnUIqzypbE+uINPDv6eKCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-29T20:37:05.533111Z","bundle_sha256":"4e3aedfd7cb20c6cbdd19ade691227445ff8e172f3fb5ebdf99632f068da31b7"}}