{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2HGSEMQ72INO2VFU6ART7GVESY","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":"f48d6bddc087e61bb232133ebde51ce5f182c735a5c60de81dc2979017eda422","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2018-12-17T16:39:10Z","title_canon_sha256":"66c0bcfc1c6904a08c41d858bf2e781b3332b97b9385626313a5289d9e25cb02"},"schema_version":"1.0","source":{"id":"1812.06881","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.06881","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"arxiv_version","alias_value":"1812.06881v2","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.06881","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"pith_short_12","alias_value":"2HGSEMQ72INO","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2HGSEMQ72INO2VFU","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2HGSEMQ7","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:397c7e232a540908333d6a0186064eae8ef293c253bc60286e884bb63966dccf","target":"graph","created_at":"2026-05-17T23:52:03Z","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":"Plasma processes occurring in the corona and solar wind can be probed by studying the thermodynamic properties of different ion species. However, most in-situ observations of positive ions in the solar wind are taken at 1 AU, where information on their solar source properties may have been irreversibly erased. In this study we aimed to use the properties of alpha particles at heliocentric distances between 0.3 and 1 AU to study plasma processes occurring at the points of observation, and to infer processes occurring inside 0.3 AU by comparing our results to previous remote sensing observations","authors_text":"C. S. Salem, D. Perrone, D. Stansby, L. Matteini, T. S. Horbury","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2018-12-17T16:39:10Z","title":"Alpha particle thermodynamics in the inner heliosphere fast solar wind"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.06881","kind":"arxiv","version":2},"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":"sha256:0a9a68516d317beec20b808faff18ede358b6e517b85a700f5c0da2930667695","target":"record","created_at":"2026-05-17T23:52:03Z","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":"f48d6bddc087e61bb232133ebde51ce5f182c735a5c60de81dc2979017eda422","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.space-ph","submitted_at":"2018-12-17T16:39:10Z","title_canon_sha256":"66c0bcfc1c6904a08c41d858bf2e781b3332b97b9385626313a5289d9e25cb02"},"schema_version":"1.0","source":{"id":"1812.06881","kind":"arxiv","version":2}},"canonical_sha256":"d1cd22321fd21aed54b4f0233f9aa4962d43ab304339b1e212a7bb33faccfda5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d1cd22321fd21aed54b4f0233f9aa4962d43ab304339b1e212a7bb33faccfda5","first_computed_at":"2026-05-17T23:52:03.637196Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:03.637196Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9k0kjX/frYstwwskoBAl8pWweYz0NtHzhr5vMrzdq6QDJ/22mFWxSda/vanWc3fU3KNxZ3+Ac4TtLrxznAsODw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:03.637930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.06881","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a9a68516d317beec20b808faff18ede358b6e517b85a700f5c0da2930667695","sha256:397c7e232a540908333d6a0186064eae8ef293c253bc60286e884bb63966dccf"],"state_sha256":"b3bc14188c2b0820e6ae1fc25e66ab1b8959a68afacb0b8172fc74a6d690ec94"}