{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FV2ASMFNQGAKOPN53QBQ6GHBPD","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":"df08b230845834a6aa7f47f8246191f5fe05182a4e0af51629c501b35fcd0577","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-02T08:33:03Z","title_canon_sha256":"9844435829a4bb836e9608f5baaaeb0a9bcf07845e6de100580836039b95adca"},"schema_version":"1.0","source":{"id":"1108.0515","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.0515","created_at":"2026-05-18T04:02:54Z"},{"alias_kind":"arxiv_version","alias_value":"1108.0515v1","created_at":"2026-05-18T04:02:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.0515","created_at":"2026-05-18T04:02:54Z"},{"alias_kind":"pith_short_12","alias_value":"FV2ASMFNQGAK","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FV2ASMFNQGAKOPN5","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FV2ASMFN","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:dff2c333bc805fb245f5298908d0096e40abf888ada242ceb8be081001579e5b","target":"graph","created_at":"2026-05-18T04:02:54Z","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"},"paper":{"abstract_excerpt":"A goal of the NASA STEREO mission is to study the feasibility of forecasting the direction, arrival time and internal structure of solar coronal mass ejections (CMEs) from a vantage point outside the Sun-Earth line. Through a case study, we discuss the arrival time calculation of interplanetary CMEs (ICMEs) in the ecliptic plane using data from STEREO/SECCHI at large elongations from the Sun in combination with different geometric assumptions about the ICME front shape (Fixed-\\Phi (FP): a point and harmonic Mean (HM): a circle). These forecasting techniques use single-spacecraft imaging data a","authors_text":"A. B. Galvin, A. M. Veronig, C. J. Farrugia, C. M\\\"ostl, H. K. Biernat, J. A. Davies, J. G. Luhmann, M. Temmer, N. Lugaz, R. Harrison, S. Crothers, T. L. Zhang, T. Rollett, W. Baumjohann","cross_cats":["physics.space-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-02T08:33:03Z","title":"Arrival time calculation for interplanetary coronal mass ejections with circular fronts and application to STEREO observations of the 2009 February 13 eruption"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.0515","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":"sha256:19b288de69bde5c8bf2d5985ce06a4ec3684a198ce0230d3366406cd25d5d162","target":"record","created_at":"2026-05-18T04:02:54Z","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":"df08b230845834a6aa7f47f8246191f5fe05182a4e0af51629c501b35fcd0577","cross_cats_sorted":["physics.space-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-02T08:33:03Z","title_canon_sha256":"9844435829a4bb836e9608f5baaaeb0a9bcf07845e6de100580836039b95adca"},"schema_version":"1.0","source":{"id":"1108.0515","kind":"arxiv","version":1}},"canonical_sha256":"2d740930ad8180a73dbddc030f18e178ed826efc43ac2819f9e7cf9c777ed6e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d740930ad8180a73dbddc030f18e178ed826efc43ac2819f9e7cf9c777ed6e1","first_computed_at":"2026-05-18T04:02:54.364484Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:02:54.364484Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xDpXcoHZ9VqaS4tfeaPgWlVlIGx6RbuKEHH2Th+YnAMiNS7OIF2J0a822VOb5OJhvYWOBG304x39Bw1YcSL1Cw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:02:54.365351Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.0515","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:19b288de69bde5c8bf2d5985ce06a4ec3684a198ce0230d3366406cd25d5d162","sha256:dff2c333bc805fb245f5298908d0096e40abf888ada242ceb8be081001579e5b"],"state_sha256":"3f53e0f4143648199e3ee33132a21ac6b63a82d16d6619d704b14b3a26ee2b28"}