{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:KLQQDZROMRTTVFONEV4VTSJHV4","short_pith_number":"pith:KLQQDZRO","canonical_record":{"source":{"id":"2001.06929","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-20T01:05:15Z","cross_cats_sorted":[],"title_canon_sha256":"326c89372a200fca836409b119fdd826cc7fb5b438701869bf836cab4a6bee58","abstract_canon_sha256":"ea7de03c54d020cdc546415d32b10c6b3857f0d8c02de25ac5855c51c934b9fa"},"schema_version":"1.0"},"canonical_sha256":"52e101e62e64673a95cd257959c927af02d9f03b6e0f4f7a10912b3d81c56780","source":{"kind":"arxiv","id":"2001.06929","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.06929","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"arxiv_version","alias_value":"2001.06929v1","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.06929","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"pith_short_12","alias_value":"KLQQDZROMRTT","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"pith_short_16","alias_value":"KLQQDZROMRTTVFON","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"pith_short_8","alias_value":"KLQQDZRO","created_at":"2026-07-05T01:41:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:KLQQDZROMRTTVFONEV4VTSJHV4","target":"record","payload":{"canonical_record":{"source":{"id":"2001.06929","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-20T01:05:15Z","cross_cats_sorted":[],"title_canon_sha256":"326c89372a200fca836409b119fdd826cc7fb5b438701869bf836cab4a6bee58","abstract_canon_sha256":"ea7de03c54d020cdc546415d32b10c6b3857f0d8c02de25ac5855c51c934b9fa"},"schema_version":"1.0"},"canonical_sha256":"52e101e62e64673a95cd257959c927af02d9f03b6e0f4f7a10912b3d81c56780","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:41:50.613978Z","signature_b64":"AQ8lVaICQUVdjbABQocEYS370O2kkAuWaTjIBE9NlPuBscpCT1c7qUyMZockIdAgqR6Esz+ZpHQji3M9MBAEBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52e101e62e64673a95cd257959c927af02d9f03b6e0f4f7a10912b3d81c56780","last_reissued_at":"2026-07-05T01:41:50.613589Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:41:50.613589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.06929","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":"2026-07-05T01:41:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FPOTdupP/1/7KkpZjS/TdaGARW9hWQdC9eBT++TDwhPkeKWitiJDMOFZNer18dfQ3J+avCRfchMzBE3hfjJVCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T01:30:59.238195Z"},"content_sha256":"346a23662a489d885d2666e31e5366dd2670b7b1bec8412e8d1d4bd39d86ecd4","schema_version":"1.0","event_id":"sha256:346a23662a489d885d2666e31e5366dd2670b7b1bec8412e8d1d4bd39d86ecd4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:KLQQDZROMRTTVFONEV4VTSJHV4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extreme Ultraviolet Late Phase of Solar Flares","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Arun Kumar Awasthi, Bernhard Kliem, Jun Chen, Kai Liu, Pejin Zhang, Rui Liu, Yuming Wang","submitted_at":"2020-01-20T01:05:15Z","abstract_excerpt":"A second peak in extreme ultraviolet sometimes appears during the gradual phase of solar flares, which is known as EUV late phase (ELP). Stereotypically ELP is associated with two separated sets of flaring loops with distinct sizes, and it has been debated whether ELP is caused by additional heating or extended plasma cooling in the longer loop system. Here we carry out a survey of 55 M-and-above GOES-class flares with ELP during 2010--2014. Based on the flare-ribbon morphology, these flares are categorized as circular-ribbon (19 events), two-ribbon (23 events), and complex-ribbon (13 events) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.06929","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2001.06929/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T01:41:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lhirZEppiWjR76JBFNZA6CIDtWlQblikqTARHcjRLb9FFTF/7qZ8WB3kiXQat1tINLvw1hqx7Al77Ns4syIrBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T01:30:59.238596Z"},"content_sha256":"b9e9db409a8b97935de3b3dd7fcf954fa5d710bf87030b62f733a13a49d903c6","schema_version":"1.0","event_id":"sha256:b9e9db409a8b97935de3b3dd7fcf954fa5d710bf87030b62f733a13a49d903c6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KLQQDZROMRTTVFONEV4VTSJHV4/bundle.json","state_url":"https://pith.science/pith/KLQQDZROMRTTVFONEV4VTSJHV4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KLQQDZROMRTTVFONEV4VTSJHV4/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":"2026-07-17T01:30:59Z","links":{"resolver":"https://pith.science/pith/KLQQDZROMRTTVFONEV4VTSJHV4","bundle":"https://pith.science/pith/KLQQDZROMRTTVFONEV4VTSJHV4/bundle.json","state":"https://pith.science/pith/KLQQDZROMRTTVFONEV4VTSJHV4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KLQQDZROMRTTVFONEV4VTSJHV4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:KLQQDZROMRTTVFONEV4VTSJHV4","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":"ea7de03c54d020cdc546415d32b10c6b3857f0d8c02de25ac5855c51c934b9fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-20T01:05:15Z","title_canon_sha256":"326c89372a200fca836409b119fdd826cc7fb5b438701869bf836cab4a6bee58"},"schema_version":"1.0","source":{"id":"2001.06929","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.06929","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"arxiv_version","alias_value":"2001.06929v1","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.06929","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"pith_short_12","alias_value":"KLQQDZROMRTT","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"pith_short_16","alias_value":"KLQQDZROMRTTVFON","created_at":"2026-07-05T01:41:50Z"},{"alias_kind":"pith_short_8","alias_value":"KLQQDZRO","created_at":"2026-07-05T01:41:50Z"}],"graph_snapshots":[{"event_id":"sha256:b9e9db409a8b97935de3b3dd7fcf954fa5d710bf87030b62f733a13a49d903c6","target":"graph","created_at":"2026-07-05T01:41:50Z","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/2001.06929/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A second peak in extreme ultraviolet sometimes appears during the gradual phase of solar flares, which is known as EUV late phase (ELP). Stereotypically ELP is associated with two separated sets of flaring loops with distinct sizes, and it has been debated whether ELP is caused by additional heating or extended plasma cooling in the longer loop system. Here we carry out a survey of 55 M-and-above GOES-class flares with ELP during 2010--2014. Based on the flare-ribbon morphology, these flares are categorized as circular-ribbon (19 events), two-ribbon (23 events), and complex-ribbon (13 events) ","authors_text":"Arun Kumar Awasthi, Bernhard Kliem, Jun Chen, Kai Liu, Pejin Zhang, Rui Liu, Yuming Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-20T01:05:15Z","title":"Extreme Ultraviolet Late Phase of Solar Flares"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.06929","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":"sha256:346a23662a489d885d2666e31e5366dd2670b7b1bec8412e8d1d4bd39d86ecd4","target":"record","created_at":"2026-07-05T01:41:50Z","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":"ea7de03c54d020cdc546415d32b10c6b3857f0d8c02de25ac5855c51c934b9fa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-20T01:05:15Z","title_canon_sha256":"326c89372a200fca836409b119fdd826cc7fb5b438701869bf836cab4a6bee58"},"schema_version":"1.0","source":{"id":"2001.06929","kind":"arxiv","version":1}},"canonical_sha256":"52e101e62e64673a95cd257959c927af02d9f03b6e0f4f7a10912b3d81c56780","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"52e101e62e64673a95cd257959c927af02d9f03b6e0f4f7a10912b3d81c56780","first_computed_at":"2026-07-05T01:41:50.613589Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:41:50.613589Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AQ8lVaICQUVdjbABQocEYS370O2kkAuWaTjIBE9NlPuBscpCT1c7qUyMZockIdAgqR6Esz+ZpHQji3M9MBAEBA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:41:50.613978Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.06929","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:346a23662a489d885d2666e31e5366dd2670b7b1bec8412e8d1d4bd39d86ecd4","sha256:b9e9db409a8b97935de3b3dd7fcf954fa5d710bf87030b62f733a13a49d903c6"],"state_sha256":"e08e3161a8c4c823cef4cca5ac1efe9133ff59f11a31f937e9ec9e7ff3ebf4ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PXMTWWm+dF6z1lcDGOKQPg9af/BMJ+kRiGH0rUe68S62QUi0x8dsRfU4xRUa73sTlhqTeie8KGQaTy+Nzhw/DA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T01:30:59.240916Z","bundle_sha256":"234ae96263b41a78255ebbe5f4c14ba91a096d87a0b1daab17d08d1b561641c5"}}