{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:LKSFLM6JVCTQ7KJO32C5GZBDOU","short_pith_number":"pith:LKSFLM6J","canonical_record":{"source":{"id":"1907.13318","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-31T06:05:28Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8c614a2974054c0a40e32cc5da98edd9dd935aeb70b4fa15f9e622f1732332b0","abstract_canon_sha256":"29f4ba2b9d17cbdbfb757aab7484729db444bf4e1b698493c361b650c1a163e9"},"schema_version":"1.0"},"canonical_sha256":"5aa455b3c9a8a70fa92ede85d364237502d8b2dec15b37888aa440d32ea34331","source":{"kind":"arxiv","id":"1907.13318","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.13318","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"1907.13318v1","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.13318","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"LKSFLM6JVCTQ","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_16","alias_value":"LKSFLM6JVCTQ7KJO","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_8","alias_value":"LKSFLM6J","created_at":"2026-07-05T00:31:54Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:LKSFLM6JVCTQ7KJO32C5GZBDOU","target":"record","payload":{"canonical_record":{"source":{"id":"1907.13318","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-31T06:05:28Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"8c614a2974054c0a40e32cc5da98edd9dd935aeb70b4fa15f9e622f1732332b0","abstract_canon_sha256":"29f4ba2b9d17cbdbfb757aab7484729db444bf4e1b698493c361b650c1a163e9"},"schema_version":"1.0"},"canonical_sha256":"5aa455b3c9a8a70fa92ede85d364237502d8b2dec15b37888aa440d32ea34331","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:31:54.467522Z","signature_b64":"9KzZEN7vJYiNuG3VoQZVAO9fHOF6fHP8N4EZtzjRXE/AQWfCIhPkLAAZJypiyT+LOxK8OjVEj80pKZcKvyeJDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5aa455b3c9a8a70fa92ede85d364237502d8b2dec15b37888aa440d32ea34331","last_reissued_at":"2026-07-05T00:31:54.467035Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:31:54.467035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.13318","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":"2026-07-05T00:31:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R723ZFLYCNe4Z2YEhzf6KTS7ncltFyYlorhGX/zKqBxjRCsbo7fWANlZfjUFsGvHd/F7SfajQmr9i+bCo3gUAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:48:33.374648Z"},"content_sha256":"d46b58874be998f5a733d333f9956495e0c0f19c56490e4a305c0e2af193e1e9","schema_version":"1.0","event_id":"sha256:d46b58874be998f5a733d333f9956495e0c0f19c56490e4a305c0e2af193e1e9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:LKSFLM6JVCTQ7KJO32C5GZBDOU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the Shock Source of Sustained Gamma-Ray Emission from the Sun","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Lara, H. Xie, N Gopalswamy, P. Makela, S. Akiyama, S. Yashiro","submitted_at":"2019-07-31T06:05:28Z","abstract_excerpt":"It has recently been shown that the spatially and temporally extended gamma-ray emission in solar eruptions are caused by greater than 300 MeV protons precipitating on the Sun from shocks driven by coronal mass ejections (CMEs). The gamma-rays result from the decay of neutral pions produced in the proton-proton interaction when the greater than 300 MeV protons collide with those in the chromosphere. The evidence comes from the close correlation between the durations of the sustained gamma-ray emission (SGRE) and the associated interplanetary (IP) type II radio bursts. In this paper, we provide"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.13318","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/1907.13318/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":"2026-07-05T00:31:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aJ/4JwF6H4r24pHmhYFv40qaXWjkgDkZ9efOxmy3f/R+k4BWo0R9nY6JDixzLRHiG3TfcPKHiVJAht8dIGiTAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T11:48:33.375412Z"},"content_sha256":"915ddb5c8b86bd93f50f29b2ecb374e2566d04ddeba398415eda706a2e5f12b8","schema_version":"1.0","event_id":"sha256:915ddb5c8b86bd93f50f29b2ecb374e2566d04ddeba398415eda706a2e5f12b8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU/bundle.json","state_url":"https://pith.science/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU/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":"2026-08-06T11:48:33Z","links":{"resolver":"https://pith.science/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU","bundle":"https://pith.science/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU/bundle.json","state":"https://pith.science/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LKSFLM6JVCTQ7KJO32C5GZBDOU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:LKSFLM6JVCTQ7KJO32C5GZBDOU","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":"29f4ba2b9d17cbdbfb757aab7484729db444bf4e1b698493c361b650c1a163e9","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-31T06:05:28Z","title_canon_sha256":"8c614a2974054c0a40e32cc5da98edd9dd935aeb70b4fa15f9e622f1732332b0"},"schema_version":"1.0","source":{"id":"1907.13318","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.13318","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"arxiv_version","alias_value":"1907.13318v1","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.13318","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_12","alias_value":"LKSFLM6JVCTQ","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_16","alias_value":"LKSFLM6JVCTQ7KJO","created_at":"2026-07-05T00:31:54Z"},{"alias_kind":"pith_short_8","alias_value":"LKSFLM6J","created_at":"2026-07-05T00:31:54Z"}],"graph_snapshots":[{"event_id":"sha256:915ddb5c8b86bd93f50f29b2ecb374e2566d04ddeba398415eda706a2e5f12b8","target":"graph","created_at":"2026-07-05T00:31:54Z","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/1907.13318/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"It has recently been shown that the spatially and temporally extended gamma-ray emission in solar eruptions are caused by greater than 300 MeV protons precipitating on the Sun from shocks driven by coronal mass ejections (CMEs). The gamma-rays result from the decay of neutral pions produced in the proton-proton interaction when the greater than 300 MeV protons collide with those in the chromosphere. The evidence comes from the close correlation between the durations of the sustained gamma-ray emission (SGRE) and the associated interplanetary (IP) type II radio bursts. In this paper, we provide","authors_text":"A. Lara, H. Xie, N Gopalswamy, P. Makela, S. Akiyama, S. Yashiro","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-31T06:05:28Z","title":"On the Shock Source of Sustained Gamma-Ray Emission from the Sun"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.13318","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:d46b58874be998f5a733d333f9956495e0c0f19c56490e4a305c0e2af193e1e9","target":"record","created_at":"2026-07-05T00:31:54Z","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":"29f4ba2b9d17cbdbfb757aab7484729db444bf4e1b698493c361b650c1a163e9","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-31T06:05:28Z","title_canon_sha256":"8c614a2974054c0a40e32cc5da98edd9dd935aeb70b4fa15f9e622f1732332b0"},"schema_version":"1.0","source":{"id":"1907.13318","kind":"arxiv","version":1}},"canonical_sha256":"5aa455b3c9a8a70fa92ede85d364237502d8b2dec15b37888aa440d32ea34331","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5aa455b3c9a8a70fa92ede85d364237502d8b2dec15b37888aa440d32ea34331","first_computed_at":"2026-07-05T00:31:54.467035Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:31:54.467035Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9KzZEN7vJYiNuG3VoQZVAO9fHOF6fHP8N4EZtzjRXE/AQWfCIhPkLAAZJypiyT+LOxK8OjVEj80pKZcKvyeJDw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:31:54.467522Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.13318","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d46b58874be998f5a733d333f9956495e0c0f19c56490e4a305c0e2af193e1e9","sha256:915ddb5c8b86bd93f50f29b2ecb374e2566d04ddeba398415eda706a2e5f12b8"],"state_sha256":"9d0c5a9d85761e08c483d847ce16e61c7b1da0a439514426e7f5508fcbb62fdd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fiS9OCwDEH/iU4zulKxdpLzVUBkE4SJpGa65bT8KwSDczpwlotPaeK8jWBnGWHLGbaCn0AdwVniKEYa1lO6pAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T11:48:33.381651Z","bundle_sha256":"38fe52d03b9ffc0793568f607aa4b71aa2a7e9c257f407e74636b0dcc1fce305"}}