{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:BMYEZ4MRP43DWHVL4H4YBLOJSL","short_pith_number":"pith:BMYEZ4MR","canonical_record":{"source":{"id":"2203.11625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-22T11:23:38Z","cross_cats_sorted":[],"title_canon_sha256":"67e73cbb6f3ed45cf253eabc50b0451b5fd6f2e9647dff233bf77566185b9082","abstract_canon_sha256":"47ecc2a48fd07cdd6d87e1dcf913cfb9833cc88907869b036d53ec5a958c0015"},"schema_version":"1.0"},"canonical_sha256":"0b304cf1917f363b1eabe1f980adc992de2d09661b854c888402f111dcda54fe","source":{"kind":"arxiv","id":"2203.11625","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.11625","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"arxiv_version","alias_value":"2203.11625v1","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11625","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"pith_short_12","alias_value":"BMYEZ4MRP43D","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BMYEZ4MRP43DWHVL","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BMYEZ4MR","created_at":"2026-07-05T04:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:BMYEZ4MRP43DWHVL4H4YBLOJSL","target":"record","payload":{"canonical_record":{"source":{"id":"2203.11625","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-22T11:23:38Z","cross_cats_sorted":[],"title_canon_sha256":"67e73cbb6f3ed45cf253eabc50b0451b5fd6f2e9647dff233bf77566185b9082","abstract_canon_sha256":"47ecc2a48fd07cdd6d87e1dcf913cfb9833cc88907869b036d53ec5a958c0015"},"schema_version":"1.0"},"canonical_sha256":"0b304cf1917f363b1eabe1f980adc992de2d09661b854c888402f111dcda54fe","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:25:58.669134Z","signature_b64":"o4DvvAtkTQ1qetU7qsWqdeYYWwY+18TWSd1Bu6M2sIX6du5fVLfucP3guWeiDOvI8OAut6C7wGlR7qzv5FPZAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b304cf1917f363b1eabe1f980adc992de2d09661b854c888402f111dcda54fe","last_reissued_at":"2026-07-05T04:25:58.668636Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:25:58.668636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.11625","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":"2026-07-05T04:25:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yLlKSNnzWjFfaAGszSUDPow/hIzbqCBqKCaiZ9XwYiXMKRRpGQC4FOw3xbQoLEd5phCL5pcnAnJQmqlTP65LCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:59:05.515305Z"},"content_sha256":"34a5d5538cff5ea4e3f153815069f573370358d93c9e3d7d5b18dfa9307856a4","schema_version":"1.0","event_id":"sha256:34a5d5538cff5ea4e3f153815069f573370358d93c9e3d7d5b18dfa9307856a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:BMYEZ4MRP43DWHVL4H4YBLOJSL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Nanoflare distributions over solar cycle 24 based on SDO/AIA differential emission measure observations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Astrid M. Veronig, Stefan Purkhart","submitted_at":"2022-03-22T11:23:38Z","abstract_excerpt":"Nanoflares in quiet-Sun regions during solar cycle 24 are studied with the best available plasma diagnostics to derive their energy distribution and contribution to coronal heating during different levels of solar activity. Extreme ultraviolet (EUV) filters of the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) are used. We analyze 30 AIA/SDO image series between 2011 and 2018, each covering a $400 \\times 400$ arcsec quiet-Sun field-of-view over two hours with a 12-second cadence. Differential emission measure (DEM) analysis is used to derive the emission measur"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11625","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/2203.11625/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":"2026-07-05T04:25:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wQohphWYJyoxcdijT1oXopyrfvGlTIvSTjNLFbRoBG4CskX5YFCkjXGmweJcWmXPD76Ec7nGU+NicwxnmrgrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:59:05.515876Z"},"content_sha256":"ab91eec62241fc56bd778b9d31ff4995fbb189ba65a01d46160f6cafd3b29f4d","schema_version":"1.0","event_id":"sha256:ab91eec62241fc56bd778b9d31ff4995fbb189ba65a01d46160f6cafd3b29f4d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL/bundle.json","state_url":"https://pith.science/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL/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":"2026-08-03T17:59:05Z","links":{"resolver":"https://pith.science/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL","bundle":"https://pith.science/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL/bundle.json","state":"https://pith.science/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BMYEZ4MRP43DWHVL4H4YBLOJSL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:BMYEZ4MRP43DWHVL4H4YBLOJSL","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":"47ecc2a48fd07cdd6d87e1dcf913cfb9833cc88907869b036d53ec5a958c0015","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-22T11:23:38Z","title_canon_sha256":"67e73cbb6f3ed45cf253eabc50b0451b5fd6f2e9647dff233bf77566185b9082"},"schema_version":"1.0","source":{"id":"2203.11625","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.11625","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"arxiv_version","alias_value":"2203.11625v1","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.11625","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"pith_short_12","alias_value":"BMYEZ4MRP43D","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BMYEZ4MRP43DWHVL","created_at":"2026-07-05T04:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BMYEZ4MR","created_at":"2026-07-05T04:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:ab91eec62241fc56bd778b9d31ff4995fbb189ba65a01d46160f6cafd3b29f4d","target":"graph","created_at":"2026-07-05T04:25:58Z","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/2203.11625/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nanoflares in quiet-Sun regions during solar cycle 24 are studied with the best available plasma diagnostics to derive their energy distribution and contribution to coronal heating during different levels of solar activity. Extreme ultraviolet (EUV) filters of the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) are used. We analyze 30 AIA/SDO image series between 2011 and 2018, each covering a $400 \\times 400$ arcsec quiet-Sun field-of-view over two hours with a 12-second cadence. Differential emission measure (DEM) analysis is used to derive the emission measur","authors_text":"Astrid M. Veronig, Stefan Purkhart","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-22T11:23:38Z","title":"Nanoflare distributions over solar cycle 24 based on SDO/AIA differential emission measure observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.11625","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":"sha256:34a5d5538cff5ea4e3f153815069f573370358d93c9e3d7d5b18dfa9307856a4","target":"record","created_at":"2026-07-05T04:25:58Z","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":"47ecc2a48fd07cdd6d87e1dcf913cfb9833cc88907869b036d53ec5a958c0015","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-03-22T11:23:38Z","title_canon_sha256":"67e73cbb6f3ed45cf253eabc50b0451b5fd6f2e9647dff233bf77566185b9082"},"schema_version":"1.0","source":{"id":"2203.11625","kind":"arxiv","version":1}},"canonical_sha256":"0b304cf1917f363b1eabe1f980adc992de2d09661b854c888402f111dcda54fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b304cf1917f363b1eabe1f980adc992de2d09661b854c888402f111dcda54fe","first_computed_at":"2026-07-05T04:25:58.668636Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:25:58.668636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"o4DvvAtkTQ1qetU7qsWqdeYYWwY+18TWSd1Bu6M2sIX6du5fVLfucP3guWeiDOvI8OAut6C7wGlR7qzv5FPZAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:25:58.669134Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.11625","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:34a5d5538cff5ea4e3f153815069f573370358d93c9e3d7d5b18dfa9307856a4","sha256:ab91eec62241fc56bd778b9d31ff4995fbb189ba65a01d46160f6cafd3b29f4d"],"state_sha256":"93179c62d0265e52d321b07625c301181a1e0d2ed6d22a592ee7ec505f1250a1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ItNT5thXz14lLvzhJAfDqbYHw3ScYNlmbbWxr0mymN/7TOJbKduedQELcFANZ2SOVjKophv1bicRsSZnp4wDCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:59:05.520792Z","bundle_sha256":"a9b6dfcfd31b0e4328900f569f28608a0bb79356a7f3160e7838921427cda9af"}}