{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:7MOSKWHAUTYXTSWXFG4XLJWBV6","short_pith_number":"pith:7MOSKWHA","canonical_record":{"source":{"id":"1707.00485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-07-03T11:34:35Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"0f91fde8cefba0fca3e1e6421f9887f9a74733df10a16c2fb59a2f582e877f06","abstract_canon_sha256":"843f21face8ce72d2ee3f4972bbceeaa066c903219830422819854fbcf535d2b"},"schema_version":"1.0"},"canonical_sha256":"fb1d2558e0a4f179cad729b975a6c1af803f8a6400d32848afff8482f76a1180","source":{"kind":"arxiv","id":"1707.00485","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.00485","created_at":"2026-05-18T00:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"1707.00485v1","created_at":"2026-05-18T00:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.00485","created_at":"2026-05-18T00:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"7MOSKWHAUTYX","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7MOSKWHAUTYXTSWX","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7MOSKWHA","created_at":"2026-05-18T12:31:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:7MOSKWHAUTYXTSWXFG4XLJWBV6","target":"record","payload":{"canonical_record":{"source":{"id":"1707.00485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-07-03T11:34:35Z","cross_cats_sorted":["physics.space-ph"],"title_canon_sha256":"0f91fde8cefba0fca3e1e6421f9887f9a74733df10a16c2fb59a2f582e877f06","abstract_canon_sha256":"843f21face8ce72d2ee3f4972bbceeaa066c903219830422819854fbcf535d2b"},"schema_version":"1.0"},"canonical_sha256":"fb1d2558e0a4f179cad729b975a6c1af803f8a6400d32848afff8482f76a1180","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:38:25.505395Z","signature_b64":"pAw1Ap17UKLd2TxTve1zVKTR14RGUEnngADtY7AxeRd+HokeFXc95M4gV8D1UDVoYXPq3UFiQQlBu0hVD2mkBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fb1d2558e0a4f179cad729b975a6c1af803f8a6400d32848afff8482f76a1180","last_reissued_at":"2026-05-18T00:38:25.504714Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:38:25.504714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1707.00485","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":"2026-05-18T00:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NeQr625zybZvs/dzOsziRod9OdWJtr1kaMNLoqGCGwrtvf+wVhkXQkDI8ei3SJJOcoTyVmoXwQ41si30cclTAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:15:13.754903Z"},"content_sha256":"915a03012734452d589b939526d61aa55e7cc577059950ce59a4814852a0e3d7","schema_version":"1.0","event_id":"sha256:915a03012734452d589b939526d61aa55e7cc577059950ce59a4814852a0e3d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:7MOSKWHAUTYXTSWXFG4XLJWBV6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Why is solar cycle 24 an inefficient producer of high-energy particle events?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.space-ph"],"primary_cat":"astro-ph.SR","authors_text":"Alexandr Afanasiev, Allan J. Tylka, Osku Raukunen, Rami Vainio, William F. Dietrich","submitted_at":"2017-07-03T11:34:35Z","abstract_excerpt":"The aim of the study is to investigate the reason for the low productivity of high-energy SEPs in the present solar cycle. We employ scaling laws derived from diffusive shock acceleration theory and simulation studies including proton-generated upstream Alfv\\'en waves to find out how the changes observed in the long-term average properties of the erupting and ambient coronal and/or solar wind plasma would affect the ability of shocks to accelerate particles to the highest energies. Provided that self-generated turbulence dominates particle transport around coronal shocks, it is found that the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00485","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":""},"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":"2026-05-18T00:38:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QgljhYtrOJuFORsR7VpHPDkfg+Peac/ECKODoozTjONl0Op8AjnLvhPoczjsY9yueziLm8ZP98KkjkjZb77FDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T17:15:13.755293Z"},"content_sha256":"24a17ebb1b09cd9b0b83d9b77921de28f6e0cb0d1d93920f8ca5094197a61461","schema_version":"1.0","event_id":"sha256:24a17ebb1b09cd9b0b83d9b77921de28f6e0cb0d1d93920f8ca5094197a61461"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6/bundle.json","state_url":"https://pith.science/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6/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":"2026-05-26T17:15:13Z","links":{"resolver":"https://pith.science/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6","bundle":"https://pith.science/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6/bundle.json","state":"https://pith.science/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7MOSKWHAUTYXTSWXFG4XLJWBV6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:7MOSKWHAUTYXTSWXFG4XLJWBV6","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":"843f21face8ce72d2ee3f4972bbceeaa066c903219830422819854fbcf535d2b","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-07-03T11:34:35Z","title_canon_sha256":"0f91fde8cefba0fca3e1e6421f9887f9a74733df10a16c2fb59a2f582e877f06"},"schema_version":"1.0","source":{"id":"1707.00485","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.00485","created_at":"2026-05-18T00:38:25Z"},{"alias_kind":"arxiv_version","alias_value":"1707.00485v1","created_at":"2026-05-18T00:38:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.00485","created_at":"2026-05-18T00:38:25Z"},{"alias_kind":"pith_short_12","alias_value":"7MOSKWHAUTYX","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_16","alias_value":"7MOSKWHAUTYXTSWX","created_at":"2026-05-18T12:31:05Z"},{"alias_kind":"pith_short_8","alias_value":"7MOSKWHA","created_at":"2026-05-18T12:31:05Z"}],"graph_snapshots":[{"event_id":"sha256:24a17ebb1b09cd9b0b83d9b77921de28f6e0cb0d1d93920f8ca5094197a61461","target":"graph","created_at":"2026-05-18T00:38:25Z","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 aim of the study is to investigate the reason for the low productivity of high-energy SEPs in the present solar cycle. We employ scaling laws derived from diffusive shock acceleration theory and simulation studies including proton-generated upstream Alfv\\'en waves to find out how the changes observed in the long-term average properties of the erupting and ambient coronal and/or solar wind plasma would affect the ability of shocks to accelerate particles to the highest energies. Provided that self-generated turbulence dominates particle transport around coronal shocks, it is found that the ","authors_text":"Alexandr Afanasiev, Allan J. Tylka, Osku Raukunen, Rami Vainio, William F. Dietrich","cross_cats":["physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-07-03T11:34:35Z","title":"Why is solar cycle 24 an inefficient producer of high-energy particle events?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.00485","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":"sha256:915a03012734452d589b939526d61aa55e7cc577059950ce59a4814852a0e3d7","target":"record","created_at":"2026-05-18T00:38:25Z","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":"843f21face8ce72d2ee3f4972bbceeaa066c903219830422819854fbcf535d2b","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-07-03T11:34:35Z","title_canon_sha256":"0f91fde8cefba0fca3e1e6421f9887f9a74733df10a16c2fb59a2f582e877f06"},"schema_version":"1.0","source":{"id":"1707.00485","kind":"arxiv","version":1}},"canonical_sha256":"fb1d2558e0a4f179cad729b975a6c1af803f8a6400d32848afff8482f76a1180","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fb1d2558e0a4f179cad729b975a6c1af803f8a6400d32848afff8482f76a1180","first_computed_at":"2026-05-18T00:38:25.504714Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:38:25.504714Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pAw1Ap17UKLd2TxTve1zVKTR14RGUEnngADtY7AxeRd+HokeFXc95M4gV8D1UDVoYXPq3UFiQQlBu0hVD2mkBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:38:25.505395Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.00485","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:915a03012734452d589b939526d61aa55e7cc577059950ce59a4814852a0e3d7","sha256:24a17ebb1b09cd9b0b83d9b77921de28f6e0cb0d1d93920f8ca5094197a61461"],"state_sha256":"b0bd4ac9d2099877c9883915a815e0b941503287b060c9f58097193208d3b868"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t+NpzQfTJfYE3S4VxHoGvVqwNUmzWYR8XHwNPMnTiRRQgjSB9tg1rsWW1a/AICOnoYVfP0whXrXVlIGpSvqeAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T17:15:13.757806Z","bundle_sha256":"e5b4ff5cd4287100f19767ad3dca17346a3ed5e408b294c8a6b93ca2d48d7641"}}