{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:DXIDUL4E7LBS5X54QEKEXHAOH7","short_pith_number":"pith:DXIDUL4E","canonical_record":{"source":{"id":"1811.12726","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-30T11:08:51Z","cross_cats_sorted":[],"title_canon_sha256":"03c3cf2e078cf1aa272a1a8a557304dd97bb46d831ef1efa9cf6a209a0fe92e3","abstract_canon_sha256":"95087e2c39662ca6d56ada384f756c1b56f91cd859620a94013c999d5128ba7c"},"schema_version":"1.0"},"canonical_sha256":"1dd03a2f84fac32edfbc81144b9c0e3ffa9e806d60777b1f2820d2a7b9a65063","source":{"kind":"arxiv","id":"1811.12726","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.12726","created_at":"2026-05-17T23:59:28Z"},{"alias_kind":"arxiv_version","alias_value":"1811.12726v1","created_at":"2026-05-17T23:59:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.12726","created_at":"2026-05-17T23:59:28Z"},{"alias_kind":"pith_short_12","alias_value":"DXIDUL4E7LBS","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DXIDUL4E7LBS5X54","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DXIDUL4E","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:DXIDUL4E7LBS5X54QEKEXHAOH7","target":"record","payload":{"canonical_record":{"source":{"id":"1811.12726","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-30T11:08:51Z","cross_cats_sorted":[],"title_canon_sha256":"03c3cf2e078cf1aa272a1a8a557304dd97bb46d831ef1efa9cf6a209a0fe92e3","abstract_canon_sha256":"95087e2c39662ca6d56ada384f756c1b56f91cd859620a94013c999d5128ba7c"},"schema_version":"1.0"},"canonical_sha256":"1dd03a2f84fac32edfbc81144b9c0e3ffa9e806d60777b1f2820d2a7b9a65063","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:28.711549Z","signature_b64":"1OMNmHwkO4byZQM4FqB26rkaBNbdXGBGBceJvlUveLuep8+MHfm0OyoG3Cpz9//Fxmq6UE+2PyMF3eleymqvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1dd03a2f84fac32edfbc81144b9c0e3ffa9e806d60777b1f2820d2a7b9a65063","last_reissued_at":"2026-05-17T23:59:28.710953Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:28.710953Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.12726","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":"2026-05-17T23:59:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YI/oMizFpmhzZLYh1eceBC6yYZ/krUpldJ4gz7tM2zM8OCmiByXxIrjJ4msPIBS2kxzlzJdV9xTHE5BHhqQ+Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:05:08.805762Z"},"content_sha256":"e5a29ab6891668160f30ec4fb7381dbef90b0f3e81ad277a9a8ed5cc8b7a0d36","schema_version":"1.0","event_id":"sha256:e5a29ab6891668160f30ec4fb7381dbef90b0f3e81ad277a9a8ed5cc8b7a0d36"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:DXIDUL4E7LBS5X54QEKEXHAOH7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Numerical Simulation of Coronal Waves Interacting with Coronal Holes: II. Dependence on Alfv\\'en Speed Inside the Coronal Hole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Aaron Hernandez-Perez, Arnold Hanslmeier, Astrid Veronig, Birgit Lemmerer, Bojan Vrsnak, Isabell Piantschitsch, Jasa Calogovic","submitted_at":"2018-11-30T11:08:51Z","abstract_excerpt":"We used our newly developed magnetohydrodynamic (MHD) code to perform 2.5D simulations of a fast-mode MHD wave interacting with coronal holes (CH) of varying Alfv\\'en speed which result from assuming different CH densities. We find that this interaction leads to effects like reflection, transmission, stationary fronts at the CH boundary and the formation of a density depletion that moves in the opposite direction to the incoming wave. We compare these effects with regard to the different CH densities and present a comprehensive analysis of morphology and kinematics of the associated secondary "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.12726","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":"2026-05-17T23:59:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"swm+RaFo7rBjAYN/s2cEWzRJCwGlUwwR7uYg46bdh7vaNBurJvGcA1uXGqBkJJ3w93xUrUMTWOrwOVCDl9nyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:05:08.806490Z"},"content_sha256":"9f0fcc9161917d19de659b88b2d14a7ce07ef979a30339a79d595d753f32f5b0","schema_version":"1.0","event_id":"sha256:9f0fcc9161917d19de659b88b2d14a7ce07ef979a30339a79d595d753f32f5b0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DXIDUL4E7LBS5X54QEKEXHAOH7/bundle.json","state_url":"https://pith.science/pith/DXIDUL4E7LBS5X54QEKEXHAOH7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DXIDUL4E7LBS5X54QEKEXHAOH7/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":"2026-05-30T20:05:08Z","links":{"resolver":"https://pith.science/pith/DXIDUL4E7LBS5X54QEKEXHAOH7","bundle":"https://pith.science/pith/DXIDUL4E7LBS5X54QEKEXHAOH7/bundle.json","state":"https://pith.science/pith/DXIDUL4E7LBS5X54QEKEXHAOH7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DXIDUL4E7LBS5X54QEKEXHAOH7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DXIDUL4E7LBS5X54QEKEXHAOH7","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":"95087e2c39662ca6d56ada384f756c1b56f91cd859620a94013c999d5128ba7c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-30T11:08:51Z","title_canon_sha256":"03c3cf2e078cf1aa272a1a8a557304dd97bb46d831ef1efa9cf6a209a0fe92e3"},"schema_version":"1.0","source":{"id":"1811.12726","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.12726","created_at":"2026-05-17T23:59:28Z"},{"alias_kind":"arxiv_version","alias_value":"1811.12726v1","created_at":"2026-05-17T23:59:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.12726","created_at":"2026-05-17T23:59:28Z"},{"alias_kind":"pith_short_12","alias_value":"DXIDUL4E7LBS","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DXIDUL4E7LBS5X54","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DXIDUL4E","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:9f0fcc9161917d19de659b88b2d14a7ce07ef979a30339a79d595d753f32f5b0","target":"graph","created_at":"2026-05-17T23:59:28Z","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 used our newly developed magnetohydrodynamic (MHD) code to perform 2.5D simulations of a fast-mode MHD wave interacting with coronal holes (CH) of varying Alfv\\'en speed which result from assuming different CH densities. We find that this interaction leads to effects like reflection, transmission, stationary fronts at the CH boundary and the formation of a density depletion that moves in the opposite direction to the incoming wave. We compare these effects with regard to the different CH densities and present a comprehensive analysis of morphology and kinematics of the associated secondary ","authors_text":"Aaron Hernandez-Perez, Arnold Hanslmeier, Astrid Veronig, Birgit Lemmerer, Bojan Vrsnak, Isabell Piantschitsch, Jasa Calogovic","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-30T11:08:51Z","title":"Numerical Simulation of Coronal Waves Interacting with Coronal Holes: II. Dependence on Alfv\\'en Speed Inside the Coronal Hole"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.12726","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:e5a29ab6891668160f30ec4fb7381dbef90b0f3e81ad277a9a8ed5cc8b7a0d36","target":"record","created_at":"2026-05-17T23:59:28Z","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":"95087e2c39662ca6d56ada384f756c1b56f91cd859620a94013c999d5128ba7c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-30T11:08:51Z","title_canon_sha256":"03c3cf2e078cf1aa272a1a8a557304dd97bb46d831ef1efa9cf6a209a0fe92e3"},"schema_version":"1.0","source":{"id":"1811.12726","kind":"arxiv","version":1}},"canonical_sha256":"1dd03a2f84fac32edfbc81144b9c0e3ffa9e806d60777b1f2820d2a7b9a65063","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1dd03a2f84fac32edfbc81144b9c0e3ffa9e806d60777b1f2820d2a7b9a65063","first_computed_at":"2026-05-17T23:59:28.710953Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:28.710953Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1OMNmHwkO4byZQM4FqB26rkaBNbdXGBGBceJvlUveLuep8+MHfm0OyoG3Cpz9//Fxmq6UE+2PyMF3eleymqvCg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:28.711549Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.12726","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5a29ab6891668160f30ec4fb7381dbef90b0f3e81ad277a9a8ed5cc8b7a0d36","sha256:9f0fcc9161917d19de659b88b2d14a7ce07ef979a30339a79d595d753f32f5b0"],"state_sha256":"0ef610e91d2eaaeafbadd9e3c8540d183172b93a0e33cd26b44d8600197fb8dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yxFFaofCYzsQVd0u9BSa8Nb7R1NJe5+iQYL2ZOjFoEnE3pX1XBbd8UhYYo9DqZYp9ff+QJcRI84uPRKBJKxbCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T20:05:08.809637Z","bundle_sha256":"76218768de018851fdc3365aaa99c58f60ad4d9c129426765aa46a07e4b23e7e"}}