{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:Z7FKCY6WT7DWR5AIUBYU7ZSBP2","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":"654b22106a5b4960e41cbe8a56abc8b1675ca5dc2e224398bb81b552f6c78b4a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-13T15:38:15Z","title_canon_sha256":"1acaa334b17044ccf7fa464dc6acfd380e51ce79b22d4bc365b09273d23720c2"},"schema_version":"1.0","source":{"id":"1209.2934","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.2934","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"arxiv_version","alias_value":"1209.2934v1","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.2934","created_at":"2026-05-18T01:54:29Z"},{"alias_kind":"pith_short_12","alias_value":"Z7FKCY6WT7DW","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"Z7FKCY6WT7DWR5AI","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"Z7FKCY6W","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:a66e823014fad170f5852fa12fe4d053759c135eb9ee52121182b1e1c6dcf3d5","target":"graph","created_at":"2026-05-18T01:54:29Z","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":"In this paper we introduce a new diagnostic technique that uses prominence EUV and UV absorption to determine the prominence plasma electron temperature and column emission measure, as well as He/H relative abundance; if a realistic assumption on the geometry of the absorbing plasma can be made, this technique can also yield the absorbing plasma electron density. This technique capitalizes on the absorption properties of Hydrogen and Helium at different wavelength ranges and temperature regimes. Several cases where this technique can be successfully applied are described. This technique works ","authors_text":"E. Landi, F. Reale","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-13T15:38:15Z","title":"Prominence plasma diagnostics through EUV absorption"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.2934","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":"sha256:3eb9576abe4fa2e1a5860ab449fd2ef8aabef9ea3fd4ba21575c08c14175bf8a","target":"record","created_at":"2026-05-18T01:54:29Z","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":"654b22106a5b4960e41cbe8a56abc8b1675ca5dc2e224398bb81b552f6c78b4a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-09-13T15:38:15Z","title_canon_sha256":"1acaa334b17044ccf7fa464dc6acfd380e51ce79b22d4bc365b09273d23720c2"},"schema_version":"1.0","source":{"id":"1209.2934","kind":"arxiv","version":1}},"canonical_sha256":"cfcaa163d69fc768f408a0714fe6417e960321f52c648c3f588b50072b66c9cb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cfcaa163d69fc768f408a0714fe6417e960321f52c648c3f588b50072b66c9cb","first_computed_at":"2026-05-18T01:54:29.441636Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:29.441636Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QyreNciL3UEBeyYtmw3IjJTCJpeS40RbntLBufvZDgJejOuGUly91bBWftajazKr8JbElue7Nr4N60jYVxksCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:29.442099Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.2934","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3eb9576abe4fa2e1a5860ab449fd2ef8aabef9ea3fd4ba21575c08c14175bf8a","sha256:a66e823014fad170f5852fa12fe4d053759c135eb9ee52121182b1e1c6dcf3d5"],"state_sha256":"35b7ef3b9ef0b40c655a35f761cc7ad0f08a7d911427c9de3f4fb43f4cc39765"}