{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:D2X5N65HLEJDFCNTZPBLVHGNPP","short_pith_number":"pith:D2X5N65H","canonical_record":{"source":{"id":"1905.04353","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2019-05-10T19:31:31Z","cross_cats_sorted":[],"title_canon_sha256":"f9b64d0f124bad2bb94cb714bc843158e16a33eaec6f561fc1c124b4a446d497","abstract_canon_sha256":"500c7b936c7fb3eba92c2d2a93b0473142a504608f340edfbb197df6598883fb"},"schema_version":"1.0"},"canonical_sha256":"1eafd6fba759123289b3cbc2ba9ccd7bcd2372dc83636c794726832953225abc","source":{"kind":"arxiv","id":"1905.04353","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.04353","created_at":"2026-05-17T23:46:25Z"},{"alias_kind":"arxiv_version","alias_value":"1905.04353v1","created_at":"2026-05-17T23:46:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.04353","created_at":"2026-05-17T23:46:25Z"},{"alias_kind":"pith_short_12","alias_value":"D2X5N65HLEJD","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"D2X5N65HLEJDFCNT","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"D2X5N65H","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:D2X5N65HLEJDFCNTZPBLVHGNPP","target":"record","payload":{"canonical_record":{"source":{"id":"1905.04353","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2019-05-10T19:31:31Z","cross_cats_sorted":[],"title_canon_sha256":"f9b64d0f124bad2bb94cb714bc843158e16a33eaec6f561fc1c124b4a446d497","abstract_canon_sha256":"500c7b936c7fb3eba92c2d2a93b0473142a504608f340edfbb197df6598883fb"},"schema_version":"1.0"},"canonical_sha256":"1eafd6fba759123289b3cbc2ba9ccd7bcd2372dc83636c794726832953225abc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:25.213275Z","signature_b64":"vxiluXIaPZvZgF2zgL++eAvLKquM66y+xY1qEQTT98zKxz2YEPmFTqPqGNIEzvcSogEPbwJaJaA3yHIrzb2bAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1eafd6fba759123289b3cbc2ba9ccd7bcd2372dc83636c794726832953225abc","last_reissued_at":"2026-05-17T23:46:25.212648Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:25.212648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1905.04353","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":"2026-05-17T23:46:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ju4gn0L29XCPOo35m/yoyoehWvZJ0esrIlkris2hY5fnkwCOWziRg5sdud7cQXXfI0tpWeeGdNEH709gB4nAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T19:06:48.572855Z"},"content_sha256":"835af0117d11935c5cb1ef0c6cd5ea111e6ca3079ecd6d22819b950f0803d367","schema_version":"1.0","event_id":"sha256:835af0117d11935c5cb1ef0c6cd5ea111e6ca3079ecd6d22819b950f0803d367"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:D2X5N65HLEJDFCNTZPBLVHGNPP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Forecasting the Ambient Solar Wind with Numerical Models: I. On the Implementation of an Operational Framework","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.space-ph","authors_text":"Charles N. Arge, Christian M\\\"ostl, Leila M. Mays, Ljubomir Nikolic, Martin A. Reiss, Peter J. MacNeice, Tanja Amerstorfer","submitted_at":"2019-05-10T19:31:31Z","abstract_excerpt":"The ambient solar wind conditions in interplanetary space and in the near-Earth environment are determined by activity on the Sun. Steady solar wind streams modulate the propagation behaviour of interplanetary coronal mass ejections and are themselves an important driver of recurrent geomagnetic storm activity. The knowledge of the ambient solar wind flows and fields is thus an essential component of successful space weather forecasting. Here, we present an implementation of an operational framework for operating, validating and optimizing models of the ambient solar wind flow on the example o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.04353","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":"2026-05-17T23:46:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VltzNsYbFckFs3W10GGJO66nVKuTb56XY5VAo8H7qEds3U1MrAt3yo10QkicOaD5amZqvUhKpY+Dj5PVTbuaCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T19:06:48.573507Z"},"content_sha256":"3ddeb8a65c28b9adb664c2d956b16e28153cc4995e796d5e9caf7bab6774dcfa","schema_version":"1.0","event_id":"sha256:3ddeb8a65c28b9adb664c2d956b16e28153cc4995e796d5e9caf7bab6774dcfa"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D2X5N65HLEJDFCNTZPBLVHGNPP/bundle.json","state_url":"https://pith.science/pith/D2X5N65HLEJDFCNTZPBLVHGNPP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D2X5N65HLEJDFCNTZPBLVHGNPP/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":"2026-05-26T19:06:48Z","links":{"resolver":"https://pith.science/pith/D2X5N65HLEJDFCNTZPBLVHGNPP","bundle":"https://pith.science/pith/D2X5N65HLEJDFCNTZPBLVHGNPP/bundle.json","state":"https://pith.science/pith/D2X5N65HLEJDFCNTZPBLVHGNPP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D2X5N65HLEJDFCNTZPBLVHGNPP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:D2X5N65HLEJDFCNTZPBLVHGNPP","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":"500c7b936c7fb3eba92c2d2a93b0473142a504608f340edfbb197df6598883fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2019-05-10T19:31:31Z","title_canon_sha256":"f9b64d0f124bad2bb94cb714bc843158e16a33eaec6f561fc1c124b4a446d497"},"schema_version":"1.0","source":{"id":"1905.04353","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1905.04353","created_at":"2026-05-17T23:46:25Z"},{"alias_kind":"arxiv_version","alias_value":"1905.04353v1","created_at":"2026-05-17T23:46:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1905.04353","created_at":"2026-05-17T23:46:25Z"},{"alias_kind":"pith_short_12","alias_value":"D2X5N65HLEJD","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"D2X5N65HLEJDFCNT","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"D2X5N65H","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:3ddeb8a65c28b9adb664c2d956b16e28153cc4995e796d5e9caf7bab6774dcfa","target":"graph","created_at":"2026-05-17T23:46:25Z","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 ambient solar wind conditions in interplanetary space and in the near-Earth environment are determined by activity on the Sun. Steady solar wind streams modulate the propagation behaviour of interplanetary coronal mass ejections and are themselves an important driver of recurrent geomagnetic storm activity. The knowledge of the ambient solar wind flows and fields is thus an essential component of successful space weather forecasting. Here, we present an implementation of an operational framework for operating, validating and optimizing models of the ambient solar wind flow on the example o","authors_text":"Charles N. Arge, Christian M\\\"ostl, Leila M. Mays, Ljubomir Nikolic, Martin A. Reiss, Peter J. MacNeice, Tanja Amerstorfer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2019-05-10T19:31:31Z","title":"Forecasting the Ambient Solar Wind with Numerical Models: I. On the Implementation of an Operational Framework"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1905.04353","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":"sha256:835af0117d11935c5cb1ef0c6cd5ea111e6ca3079ecd6d22819b950f0803d367","target":"record","created_at":"2026-05-17T23:46:25Z","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":"500c7b936c7fb3eba92c2d2a93b0473142a504608f340edfbb197df6598883fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2019-05-10T19:31:31Z","title_canon_sha256":"f9b64d0f124bad2bb94cb714bc843158e16a33eaec6f561fc1c124b4a446d497"},"schema_version":"1.0","source":{"id":"1905.04353","kind":"arxiv","version":1}},"canonical_sha256":"1eafd6fba759123289b3cbc2ba9ccd7bcd2372dc83636c794726832953225abc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1eafd6fba759123289b3cbc2ba9ccd7bcd2372dc83636c794726832953225abc","first_computed_at":"2026-05-17T23:46:25.212648Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:46:25.212648Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vxiluXIaPZvZgF2zgL++eAvLKquM66y+xY1qEQTT98zKxz2YEPmFTqPqGNIEzvcSogEPbwJaJaA3yHIrzb2bAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:46:25.213275Z","signed_message":"canonical_sha256_bytes"},"source_id":"1905.04353","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:835af0117d11935c5cb1ef0c6cd5ea111e6ca3079ecd6d22819b950f0803d367","sha256:3ddeb8a65c28b9adb664c2d956b16e28153cc4995e796d5e9caf7bab6774dcfa"],"state_sha256":"9a0bb1d94f96ca95c5f18bd489668b29c7723787d1b4bc2dc9e1f19187bb2238"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8l0jkqipAkXhMmayCxaGPgfVACal9PZKnQLjnMtSESAMbeJ8wWTAr16g+g14cjAyNB0tcDgpMMXRHAl+vp5XDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T19:06:48.577117Z","bundle_sha256":"422ae4e224dfcd9a844eefd68989758fc99d05cf7c1e2741e7c9bceba16309d1"}}