{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:XOWYQ56IJQ4ETEY6YGABGEKKTI","short_pith_number":"pith:XOWYQ56I","canonical_record":{"source":{"id":"1301.7591","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T12:27:49Z","cross_cats_sorted":[],"title_canon_sha256":"825662da1ba818c3f4e996d65fd34743b84d04be81bab1906b710c7d6c585eb6","abstract_canon_sha256":"b1a05c6ffd4d59567a7a00c5576c6a27c83faa8af77044d6655d95a73339a640"},"schema_version":"1.0"},"canonical_sha256":"bbad8877c84c3849931ec18013114a9a31e746c47dca4165290ef942c8c6a5c4","source":{"kind":"arxiv","id":"1301.7591","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.7591","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"arxiv_version","alias_value":"1301.7591v2","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.7591","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"pith_short_12","alias_value":"XOWYQ56IJQ4E","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XOWYQ56IJQ4ETEY6","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XOWYQ56I","created_at":"2026-05-18T12:28:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:XOWYQ56IJQ4ETEY6YGABGEKKTI","target":"record","payload":{"canonical_record":{"source":{"id":"1301.7591","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T12:27:49Z","cross_cats_sorted":[],"title_canon_sha256":"825662da1ba818c3f4e996d65fd34743b84d04be81bab1906b710c7d6c585eb6","abstract_canon_sha256":"b1a05c6ffd4d59567a7a00c5576c6a27c83faa8af77044d6655d95a73339a640"},"schema_version":"1.0"},"canonical_sha256":"bbad8877c84c3849931ec18013114a9a31e746c47dca4165290ef942c8c6a5c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:51:56.636434Z","signature_b64":"M6xDMfXbEEP8tnvIhdRBlJ1ebv0XH9RmXQcUfLjHx/I8hcobezHaAqyWJcgzo44HFAT+EN54qhLNJNOSI4vvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbad8877c84c3849931ec18013114a9a31e746c47dca4165290ef942c8c6a5c4","last_reissued_at":"2026-05-18T01:51:56.635972Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:51:56.635972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1301.7591","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:51:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fcCiLYOsxJEY+bXYtXFWS4ixk271n4oxWT3skJS+eX9OjiJszsNBeAjtITdHJjZvhG1jVZmTci6FavHlyvG2Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T15:13:02.432683Z"},"content_sha256":"976cf767246641b801dfa1e509f3f67d818f9dfe332b3bb0e0f9fc3389e5f2de","schema_version":"1.0","event_id":"sha256:976cf767246641b801dfa1e509f3f67d818f9dfe332b3bb0e0f9fc3389e5f2de"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:XOWYQ56IJQ4ETEY6YGABGEKKTI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Implications for electron acceleration and transport from non-thermal electron rates at looptop and footpoint sources in solar flares","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Eduard P. Kontar, Paulo J. A. Sim\\~oes","submitted_at":"2013-01-31T12:27:49Z","abstract_excerpt":"The interrelation of hard X-ray (HXR) emitting sources and the underlying physics of electron acceleration and transport presents one of the major questions in high-energy solar flare physics. Spatially resolved observations of solar flares often demonstrate the presence of well-separated sources of bremsstrahlung emission, so-called coronal and footpoint sources. Using spatially resolved X-ray observations by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and recently improved imaging techniques, we investigate in detail the spatially resolved electron distributions in a fe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.7591","kind":"arxiv","version":2},"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":"2026-05-18T01:51:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HLqMM4XMrvEzISUsXx0Yqf493ORjSH60vPOklvXY387JLiqQH48Ti1r8Sie88wbz/xVAcOlHNrKpJ1Tw4tQxDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-04T15:13:02.433021Z"},"content_sha256":"5cddd8a888432c17689d8aad7c32c95253d8604b1cdeaaaeef0f273123ffbea0","schema_version":"1.0","event_id":"sha256:5cddd8a888432c17689d8aad7c32c95253d8604b1cdeaaaeef0f273123ffbea0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI/bundle.json","state_url":"https://pith.science/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI/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":"2026-07-04T15:13:02Z","links":{"resolver":"https://pith.science/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI","bundle":"https://pith.science/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI/bundle.json","state":"https://pith.science/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XOWYQ56IJQ4ETEY6YGABGEKKTI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XOWYQ56IJQ4ETEY6YGABGEKKTI","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":"b1a05c6ffd4d59567a7a00c5576c6a27c83faa8af77044d6655d95a73339a640","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T12:27:49Z","title_canon_sha256":"825662da1ba818c3f4e996d65fd34743b84d04be81bab1906b710c7d6c585eb6"},"schema_version":"1.0","source":{"id":"1301.7591","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.7591","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"arxiv_version","alias_value":"1301.7591v2","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.7591","created_at":"2026-05-18T01:51:56Z"},{"alias_kind":"pith_short_12","alias_value":"XOWYQ56IJQ4E","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XOWYQ56IJQ4ETEY6","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XOWYQ56I","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:5cddd8a888432c17689d8aad7c32c95253d8604b1cdeaaaeef0f273123ffbea0","target":"graph","created_at":"2026-05-18T01:51:56Z","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 interrelation of hard X-ray (HXR) emitting sources and the underlying physics of electron acceleration and transport presents one of the major questions in high-energy solar flare physics. Spatially resolved observations of solar flares often demonstrate the presence of well-separated sources of bremsstrahlung emission, so-called coronal and footpoint sources. Using spatially resolved X-ray observations by the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) and recently improved imaging techniques, we investigate in detail the spatially resolved electron distributions in a fe","authors_text":"Eduard P. Kontar, Paulo J. A. Sim\\~oes","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T12:27:49Z","title":"Implications for electron acceleration and transport from non-thermal electron rates at looptop and footpoint sources in solar flares"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.7591","kind":"arxiv","version":2},"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":"sha256:976cf767246641b801dfa1e509f3f67d818f9dfe332b3bb0e0f9fc3389e5f2de","target":"record","created_at":"2026-05-18T01:51:56Z","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":"b1a05c6ffd4d59567a7a00c5576c6a27c83faa8af77044d6655d95a73339a640","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-01-31T12:27:49Z","title_canon_sha256":"825662da1ba818c3f4e996d65fd34743b84d04be81bab1906b710c7d6c585eb6"},"schema_version":"1.0","source":{"id":"1301.7591","kind":"arxiv","version":2}},"canonical_sha256":"bbad8877c84c3849931ec18013114a9a31e746c47dca4165290ef942c8c6a5c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbad8877c84c3849931ec18013114a9a31e746c47dca4165290ef942c8c6a5c4","first_computed_at":"2026-05-18T01:51:56.635972Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:51:56.635972Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M6xDMfXbEEP8tnvIhdRBlJ1ebv0XH9RmXQcUfLjHx/I8hcobezHaAqyWJcgzo44HFAT+EN54qhLNJNOSI4vvCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:51:56.636434Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.7591","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:976cf767246641b801dfa1e509f3f67d818f9dfe332b3bb0e0f9fc3389e5f2de","sha256:5cddd8a888432c17689d8aad7c32c95253d8604b1cdeaaaeef0f273123ffbea0"],"state_sha256":"5ac9e10fc9137577c5384e9e8268ec8a1ea91414de244ea4fc04cd7d08857522"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Vr/tFsi4xzwqX4P1NdLmY68M9WwYFZW+0CbQ5AJMM346JAjBcrgcWLeq5H+LqtCkAeEglHa7vXH+eHZdOE+ODQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-04T15:13:02.434897Z","bundle_sha256":"414c4fbf7342a5acd0e3f7555d555853eec55d72fb99e944c02d3569795b41d6"}}