{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:HFQVGAZEOYZLVBWHL26WJMQO2G","short_pith_number":"pith:HFQVGAZE","canonical_record":{"source":{"id":"1509.08948","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T20:57:33Z","cross_cats_sorted":[],"title_canon_sha256":"826a586d05d817d4ef92e8f096e2749013414fe787462d7234031c79bd162070","abstract_canon_sha256":"f635012c1a3c2af74b2779a2908f09015a23c33cb5c0449b8e4d97c2b3712db5"},"schema_version":"1.0"},"canonical_sha256":"39615303247632ba86c75ebd64b20ed183cede75703edd84f9833f00a45d0cac","source":{"kind":"arxiv","id":"1509.08948","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08948","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08948v4","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08948","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"HFQVGAZEOYZL","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HFQVGAZEOYZLVBWH","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HFQVGAZE","created_at":"2026-05-18T12:29:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:HFQVGAZEOYZLVBWHL26WJMQO2G","target":"record","payload":{"canonical_record":{"source":{"id":"1509.08948","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T20:57:33Z","cross_cats_sorted":[],"title_canon_sha256":"826a586d05d817d4ef92e8f096e2749013414fe787462d7234031c79bd162070","abstract_canon_sha256":"f635012c1a3c2af74b2779a2908f09015a23c33cb5c0449b8e4d97c2b3712db5"},"schema_version":"1.0"},"canonical_sha256":"39615303247632ba86c75ebd64b20ed183cede75703edd84f9833f00a45d0cac","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:18.414271Z","signature_b64":"994Xtod1jvOHQ/CpkYJ02jzo+LJGSCMNKcbLw/k2dtb5QghHRlz9jFKujU0NT6u8QjUXhokKcOVwUe1U2T3uCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"39615303247632ba86c75ebd64b20ed183cede75703edd84f9833f00a45d0cac","last_reissued_at":"2026-05-18T01:22:18.413458Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:18.413458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.08948","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gSoegBoxzdyjt4P16t6CnjTSS8pZH7nQgoUoV4ue5NwK9BK1lkdVZ0m+B21vK3hwe/ho8pReMPR487Le/X4jAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:35:23.562790Z"},"content_sha256":"544032106f4ec55601a4c2ca2094e98fb28352dc3788273df30914d8d4561272","schema_version":"1.0","event_id":"sha256:544032106f4ec55601a4c2ca2094e98fb28352dc3788273df30914d8d4561272"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:HFQVGAZEOYZLVBWHL26WJMQO2G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Temperature of the Source Plasma in Gradual Solar Energetic Particle Events","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Donald V. Reames","submitted_at":"2015-09-29T20:57:33Z","abstract_excerpt":"Scattering, during interplanetary transport in large, \"gradual\" solar energetic-particle (SEP) events, can cause element abundance enhancements or suppressions that depend upon the mass-to-charge ratio A/Q of the ions as an increasing function early in events and a decreasing function of the residual scattered ions later. Since the Q values for the ions depend upon the source plasma temperature T, best fits, assuming a primarily power-law dependence of enhancements vs. A/Q, provide a fundamentally new method to determine the most probable value of T for these events in the region of 3-10 MeV/a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08948","kind":"arxiv","version":4},"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":"2026-05-18T01:22:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pF3C/ableHajBHcU5vvvLvjxtriLekUXoyzum12pAR45NY2Wn/ZMrQPEjPmXjc520vHD4onN3EsHrJf8NyRxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-12T01:35:23.563145Z"},"content_sha256":"a81148e87b4183d3e442498a8783301375c61462d13b997cff4df596cefd0391","schema_version":"1.0","event_id":"sha256:a81148e87b4183d3e442498a8783301375c61462d13b997cff4df596cefd0391"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HFQVGAZEOYZLVBWHL26WJMQO2G/bundle.json","state_url":"https://pith.science/pith/HFQVGAZEOYZLVBWHL26WJMQO2G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HFQVGAZEOYZLVBWHL26WJMQO2G/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":"2026-06-12T01:35:23Z","links":{"resolver":"https://pith.science/pith/HFQVGAZEOYZLVBWHL26WJMQO2G","bundle":"https://pith.science/pith/HFQVGAZEOYZLVBWHL26WJMQO2G/bundle.json","state":"https://pith.science/pith/HFQVGAZEOYZLVBWHL26WJMQO2G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HFQVGAZEOYZLVBWHL26WJMQO2G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:HFQVGAZEOYZLVBWHL26WJMQO2G","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":"f635012c1a3c2af74b2779a2908f09015a23c33cb5c0449b8e4d97c2b3712db5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T20:57:33Z","title_canon_sha256":"826a586d05d817d4ef92e8f096e2749013414fe787462d7234031c79bd162070"},"schema_version":"1.0","source":{"id":"1509.08948","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.08948","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"arxiv_version","alias_value":"1509.08948v4","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.08948","created_at":"2026-05-18T01:22:18Z"},{"alias_kind":"pith_short_12","alias_value":"HFQVGAZEOYZL","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_16","alias_value":"HFQVGAZEOYZLVBWH","created_at":"2026-05-18T12:29:25Z"},{"alias_kind":"pith_short_8","alias_value":"HFQVGAZE","created_at":"2026-05-18T12:29:25Z"}],"graph_snapshots":[{"event_id":"sha256:a81148e87b4183d3e442498a8783301375c61462d13b997cff4df596cefd0391","target":"graph","created_at":"2026-05-18T01:22:18Z","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":"Scattering, during interplanetary transport in large, \"gradual\" solar energetic-particle (SEP) events, can cause element abundance enhancements or suppressions that depend upon the mass-to-charge ratio A/Q of the ions as an increasing function early in events and a decreasing function of the residual scattered ions later. Since the Q values for the ions depend upon the source plasma temperature T, best fits, assuming a primarily power-law dependence of enhancements vs. A/Q, provide a fundamentally new method to determine the most probable value of T for these events in the region of 3-10 MeV/a","authors_text":"Donald V. Reames","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T20:57:33Z","title":"Temperature of the Source Plasma in Gradual Solar Energetic Particle Events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.08948","kind":"arxiv","version":4},"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":"sha256:544032106f4ec55601a4c2ca2094e98fb28352dc3788273df30914d8d4561272","target":"record","created_at":"2026-05-18T01:22:18Z","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":"f635012c1a3c2af74b2779a2908f09015a23c33cb5c0449b8e4d97c2b3712db5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-09-29T20:57:33Z","title_canon_sha256":"826a586d05d817d4ef92e8f096e2749013414fe787462d7234031c79bd162070"},"schema_version":"1.0","source":{"id":"1509.08948","kind":"arxiv","version":4}},"canonical_sha256":"39615303247632ba86c75ebd64b20ed183cede75703edd84f9833f00a45d0cac","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"39615303247632ba86c75ebd64b20ed183cede75703edd84f9833f00a45d0cac","first_computed_at":"2026-05-18T01:22:18.413458Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:18.413458Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"994Xtod1jvOHQ/CpkYJ02jzo+LJGSCMNKcbLw/k2dtb5QghHRlz9jFKujU0NT6u8QjUXhokKcOVwUe1U2T3uCA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:18.414271Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.08948","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:544032106f4ec55601a4c2ca2094e98fb28352dc3788273df30914d8d4561272","sha256:a81148e87b4183d3e442498a8783301375c61462d13b997cff4df596cefd0391"],"state_sha256":"bd28d5bc9e60a5a681a33a17372e046de41fba84c7d029a1fea5b278a35a07fe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XcChXPynedGJZz/QF7C5rYbN1rLhb051w4E3XwSURwqCrZoXgdcEX0SfrUWxG4EmzUFiUKPn8pOjiZinvAN6AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-12T01:35:23.565143Z","bundle_sha256":"2acfdfba338bfc1f4c5acdba0069824c2e39d76f9a5dd2e65ff50a076f13b25e"}}