{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:X6TYCCS74QVT2BXCTQPNMYDAIE","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":"d4f34e3c8ac0c4ee765b992b2a58d1b803267c7f2fffebd1a48df4f9af03a190","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-02-25T22:56:50Z","title_canon_sha256":"7782ce85898ac8d6a900c8335d10ed34f33ad727cd88d1d583298b1f486ae8ef"},"schema_version":"1.0","source":{"id":"0902.4480","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0902.4480","created_at":"2026-05-18T04:36:40Z"},{"alias_kind":"arxiv_version","alias_value":"0902.4480v1","created_at":"2026-05-18T04:36:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0902.4480","created_at":"2026-05-18T04:36:40Z"},{"alias_kind":"pith_short_12","alias_value":"X6TYCCS74QVT","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"X6TYCCS74QVT2BXC","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"X6TYCCS7","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:c52479d907ef94e32365674f65eb3974f7ad58b97369fa21004587714b5b791e","target":"graph","created_at":"2026-05-18T04:36:40Z","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":"We present the first Hinode/EIS observations of 5 min quasi-periodic oscillations detected in a transition-region line (He II) and five coronal lines (Fe X, Fe XII, Fe XIII, Fe XIV, and Fe XV) at the footpoint of a coronal loop. The oscillations exist throughout the whole observation, characterized by a series of wave packets with nearly constant period, typically persisting for 4-6 cycles with a lifetime of 20-30 min. There is an approximate in-phase relation between Doppler shift and intensity oscillations. This provides evidence for slow magnetoacoustic waves propagating upwards from the tr","authors_text":"J. M. Davila, L. Ofman, T. J. Wang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-02-25T22:56:50Z","title":"Propagating slow magnetoacoustic waves in coronal loops observed by Hinode/EIS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0902.4480","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":"sha256:208d06b3709764197aacb2337d69104af8b8d615576e9729b1e7da71198c5f6e","target":"record","created_at":"2026-05-18T04:36:40Z","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":"d4f34e3c8ac0c4ee765b992b2a58d1b803267c7f2fffebd1a48df4f9af03a190","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-02-25T22:56:50Z","title_canon_sha256":"7782ce85898ac8d6a900c8335d10ed34f33ad727cd88d1d583298b1f486ae8ef"},"schema_version":"1.0","source":{"id":"0902.4480","kind":"arxiv","version":1}},"canonical_sha256":"bfa7810a5fe42b3d06e29c1ed66060410b10a877943ae4669f893ef59388623a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfa7810a5fe42b3d06e29c1ed66060410b10a877943ae4669f893ef59388623a","first_computed_at":"2026-05-18T04:36:40.704749Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:40.704749Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oX6qUzM9qr7/Jb25/ZZmzPpP8Ct+XPb2ZYZ9/EcE2+LU7YxKYOx02GMrWZduXKnw9Qgnu5J2mtp0F1isb3a3Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:40.705183Z","signed_message":"canonical_sha256_bytes"},"source_id":"0902.4480","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:208d06b3709764197aacb2337d69104af8b8d615576e9729b1e7da71198c5f6e","sha256:c52479d907ef94e32365674f65eb3974f7ad58b97369fa21004587714b5b791e"],"state_sha256":"09c74537359c0bea94334e0c46217c7dad75e46783df69e1a43c12cf0b265670"}