{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:FNESPJ6QQOY3LSJUBZCOOMEDIW","short_pith_number":"pith:FNESPJ6Q","canonical_record":{"source":{"id":"2006.02121","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-03T09:28:18Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"80b7e4c0ff6c3a3eb095a6e86c73aa31208a0515cac72306c733415ac9234d91","abstract_canon_sha256":"a2b661e848b2981ee67b02d333920bea5f68bb9a349f0c7ffafc67b32493d62a"},"schema_version":"1.0"},"canonical_sha256":"2b4927a7d083b1b5c9340e44e73083459675eab57dea7570290face841aded89","source":{"kind":"arxiv","id":"2006.02121","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.02121","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"2006.02121v1","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.02121","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"FNESPJ6QQOY3","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"pith_short_16","alias_value":"FNESPJ6QQOY3LSJU","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"pith_short_8","alias_value":"FNESPJ6Q","created_at":"2026-07-05T01:07:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:FNESPJ6QQOY3LSJUBZCOOMEDIW","target":"record","payload":{"canonical_record":{"source":{"id":"2006.02121","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-03T09:28:18Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"80b7e4c0ff6c3a3eb095a6e86c73aa31208a0515cac72306c733415ac9234d91","abstract_canon_sha256":"a2b661e848b2981ee67b02d333920bea5f68bb9a349f0c7ffafc67b32493d62a"},"schema_version":"1.0"},"canonical_sha256":"2b4927a7d083b1b5c9340e44e73083459675eab57dea7570290face841aded89","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:07:44.261559Z","signature_b64":"1/CFk+okM2VLCFt5SWXkXo2HdGlY/TPl9cw0uLclPvsjnoAsrdUjSJ5k5NrSvH7SW5gZkN5sj/Ivm3crRIJrDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b4927a7d083b1b5c9340e44e73083459675eab57dea7570290face841aded89","last_reissued_at":"2026-07-05T01:07:44.261090Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:07:44.261090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.02121","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":"2026-07-05T01:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SRPR/4llHdCn1yQEcmpRx273cHiogvcnpGUkhZHuwPg96U/2na+Kh0NX+JkTtZ9iiEKY22udGqAniSVu9nQ6Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:37:58.107498Z"},"content_sha256":"f586f87d5e035ffebef49d089afd5bce8dfbf3a794418de904075ef8b31efb6d","schema_version":"1.0","event_id":"sha256:f586f87d5e035ffebef49d089afd5bce8dfbf3a794418de904075ef8b31efb6d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:FNESPJ6QQOY3LSJUBZCOOMEDIW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Statistical properties of radio flux densities of solar flares","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"Liu Si-ming, Ning Zong-jun, Wang Lu","submitted_at":"2020-06-03T09:28:18Z","abstract_excerpt":"Short timescale flux variations are closely related to the energy release process of magnetic reconnection during solar flares. Radio light curves at 1, 2, 3.75, 9.4, and 17 GHz of 209 flares observed by the Nobeyama Radio Polarimeter from 2000 to 2010 are analyzed with a running smooth technique. We find that the impulsive component (with a variation timescale shorter than 1 second) of 1 GHz emission of most flares peaks at a few tens of solar flux unit and lasts for about 1 minute and the impulsive component of 2 GHz emission lasts a shorter period and peaks at a lower flux level, while at t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.02121","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/2006.02121/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":"2026-07-05T01:07:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/5ebvj9VmUPXH+ZcaHTPJzDhrOYH5z64jZpP/0ZBPDLRYiPr05ErCmu3m8M4Z3ABamwik4jqeBjvmko0eB8YBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T18:37:58.108101Z"},"content_sha256":"8cfe0d49b8f870f48e8af16a4b15983bc0310d1dd12eafb4a16d195537327177","schema_version":"1.0","event_id":"sha256:8cfe0d49b8f870f48e8af16a4b15983bc0310d1dd12eafb4a16d195537327177"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW/bundle.json","state_url":"https://pith.science/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW/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":"2026-08-03T18:37:58Z","links":{"resolver":"https://pith.science/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW","bundle":"https://pith.science/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW/bundle.json","state":"https://pith.science/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FNESPJ6QQOY3LSJUBZCOOMEDIW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:FNESPJ6QQOY3LSJUBZCOOMEDIW","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":"a2b661e848b2981ee67b02d333920bea5f68bb9a349f0c7ffafc67b32493d62a","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-03T09:28:18Z","title_canon_sha256":"80b7e4c0ff6c3a3eb095a6e86c73aa31208a0515cac72306c733415ac9234d91"},"schema_version":"1.0","source":{"id":"2006.02121","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.02121","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"arxiv_version","alias_value":"2006.02121v1","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.02121","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"pith_short_12","alias_value":"FNESPJ6QQOY3","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"pith_short_16","alias_value":"FNESPJ6QQOY3LSJU","created_at":"2026-07-05T01:07:44Z"},{"alias_kind":"pith_short_8","alias_value":"FNESPJ6Q","created_at":"2026-07-05T01:07:44Z"}],"graph_snapshots":[{"event_id":"sha256:8cfe0d49b8f870f48e8af16a4b15983bc0310d1dd12eafb4a16d195537327177","target":"graph","created_at":"2026-07-05T01:07:44Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2006.02121/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Short timescale flux variations are closely related to the energy release process of magnetic reconnection during solar flares. Radio light curves at 1, 2, 3.75, 9.4, and 17 GHz of 209 flares observed by the Nobeyama Radio Polarimeter from 2000 to 2010 are analyzed with a running smooth technique. We find that the impulsive component (with a variation timescale shorter than 1 second) of 1 GHz emission of most flares peaks at a few tens of solar flux unit and lasts for about 1 minute and the impulsive component of 2 GHz emission lasts a shorter period and peaks at a lower flux level, while at t","authors_text":"Liu Si-ming, Ning Zong-jun, Wang Lu","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-03T09:28:18Z","title":"Statistical properties of radio flux densities of solar flares"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.02121","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:f586f87d5e035ffebef49d089afd5bce8dfbf3a794418de904075ef8b31efb6d","target":"record","created_at":"2026-07-05T01:07:44Z","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":"a2b661e848b2981ee67b02d333920bea5f68bb9a349f0c7ffafc67b32493d62a","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-06-03T09:28:18Z","title_canon_sha256":"80b7e4c0ff6c3a3eb095a6e86c73aa31208a0515cac72306c733415ac9234d91"},"schema_version":"1.0","source":{"id":"2006.02121","kind":"arxiv","version":1}},"canonical_sha256":"2b4927a7d083b1b5c9340e44e73083459675eab57dea7570290face841aded89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b4927a7d083b1b5c9340e44e73083459675eab57dea7570290face841aded89","first_computed_at":"2026-07-05T01:07:44.261090Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:07:44.261090Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1/CFk+okM2VLCFt5SWXkXo2HdGlY/TPl9cw0uLclPvsjnoAsrdUjSJ5k5NrSvH7SW5gZkN5sj/Ivm3crRIJrDA==","signature_status":"signed_v1","signed_at":"2026-07-05T01:07:44.261559Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.02121","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f586f87d5e035ffebef49d089afd5bce8dfbf3a794418de904075ef8b31efb6d","sha256:8cfe0d49b8f870f48e8af16a4b15983bc0310d1dd12eafb4a16d195537327177"],"state_sha256":"71b0f82105cd213d163016b95aace1526e3263cb5faa9e0b84c74406562b123c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nqoabE1gvocC+wrm1JagWnrl1EOsL4JluFbrrWzvEOfKI0tGzy0a9Mi7lovu7GTQPx6LFguOHf+y/6LZh2x+Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T18:37:58.113156Z","bundle_sha256":"3e19fe5d51be7adff4950e6dd402414719c9ae1ed621ec4787aa2f924bd46ba2"}}