{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:VZJPDOAXL6CEYJ6GGUMNIXBQ6Y","short_pith_number":"pith:VZJPDOAX","canonical_record":{"source":{"id":"2404.17056","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-25T21:41:30Z","cross_cats_sorted":[],"title_canon_sha256":"f6bd314703d23bd68bc5b4fb2bffc1933d082dc9fa1674b404c86be3e760cb37","abstract_canon_sha256":"02c17df7356d1536b2ee3fe0f74745a4c091fe12455bf2351ffb2d14dccf9617"},"schema_version":"1.0"},"canonical_sha256":"ae52f1b8175f844c27c63518d45c30f63957200a8840760bd6c309364725e796","source":{"kind":"arxiv","id":"2404.17056","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.17056","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"arxiv_version","alias_value":"2404.17056v1","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.17056","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"pith_short_12","alias_value":"VZJPDOAXL6CE","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"pith_short_16","alias_value":"VZJPDOAXL6CEYJ6G","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"pith_short_8","alias_value":"VZJPDOAX","created_at":"2026-07-05T08:12:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:VZJPDOAXL6CEYJ6GGUMNIXBQ6Y","target":"record","payload":{"canonical_record":{"source":{"id":"2404.17056","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-25T21:41:30Z","cross_cats_sorted":[],"title_canon_sha256":"f6bd314703d23bd68bc5b4fb2bffc1933d082dc9fa1674b404c86be3e760cb37","abstract_canon_sha256":"02c17df7356d1536b2ee3fe0f74745a4c091fe12455bf2351ffb2d14dccf9617"},"schema_version":"1.0"},"canonical_sha256":"ae52f1b8175f844c27c63518d45c30f63957200a8840760bd6c309364725e796","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:12:19.111582Z","signature_b64":"vXdCLoWND+nbdqQ/afYADGD+4FZXyFo+gk3V9omtOQ2RPAk/uDn6Uip7Qe5OY6hUm10MewGR3O5t9QjSkzQpCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ae52f1b8175f844c27c63518d45c30f63957200a8840760bd6c309364725e796","last_reissued_at":"2026-07-05T08:12:19.111189Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:12:19.111189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2404.17056","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":"2026-07-05T08:12:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Uq14hA6q/uaW6HG1ojxfyW2bVOKWKTWJx5ZfWTazXu73HYE5OUoDF6keznP5x2M6q1OF9yxZmv7/nOW/mlbIAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:31:05.472200Z"},"content_sha256":"6279159d14dadb25d6d168cb380b3aa7a983a65116aee0fee061b2f753103efe","schema_version":"1.0","event_id":"sha256:6279159d14dadb25d6d168cb380b3aa7a983a65116aee0fee061b2f753103efe"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:VZJPDOAXL6CEYJ6GGUMNIXBQ6Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Frozen-field Modeling of Coronal Condensations with MPI-AMRVAC I: Demonstration in two-dimensional models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Rony Keppens, Xiaohong Li, Yuhao Zhou","submitted_at":"2024-04-25T21:41:30Z","abstract_excerpt":"Large-scale coronal plasma evolutions can be adequately described by magnetohydrodynamics (MHD) equations. However, full multi-dimensional MHD simulations require substantial computational resources. Given the low plasma $\\beta$ in the solar corona, in many coronal studies, it suffices to approximate the magnetic field to remain topologically fixed and effectively conduct one-dimensional (1D) hydrodynamic (HD) simulations instead. This approach is often employed in studies of coronal loops and their liability to form condensations related to thermal instability. While 1D HD simulations along g"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.17056","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2404.17056/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T08:12:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i0CdZYX7WlLtiHAZy6OaO+ptpeqA0QWiIaUtdtCnbJatsgsz16VM9DvTf3V7PgB54/UX5mbd73ym2Nb6/qHNAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T01:31:05.472664Z"},"content_sha256":"d55ccf1940d416da42b6bf065f30477bc51c42bb1a12c5268b226175c95515d5","schema_version":"1.0","event_id":"sha256:d55ccf1940d416da42b6bf065f30477bc51c42bb1a12c5268b226175c95515d5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y/bundle.json","state_url":"https://pith.science/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y/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":"2026-08-05T01:31:05Z","links":{"resolver":"https://pith.science/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y","bundle":"https://pith.science/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y/bundle.json","state":"https://pith.science/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VZJPDOAXL6CEYJ6GGUMNIXBQ6Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:VZJPDOAXL6CEYJ6GGUMNIXBQ6Y","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":"02c17df7356d1536b2ee3fe0f74745a4c091fe12455bf2351ffb2d14dccf9617","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-25T21:41:30Z","title_canon_sha256":"f6bd314703d23bd68bc5b4fb2bffc1933d082dc9fa1674b404c86be3e760cb37"},"schema_version":"1.0","source":{"id":"2404.17056","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2404.17056","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"arxiv_version","alias_value":"2404.17056v1","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2404.17056","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"pith_short_12","alias_value":"VZJPDOAXL6CE","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"pith_short_16","alias_value":"VZJPDOAXL6CEYJ6G","created_at":"2026-07-05T08:12:19Z"},{"alias_kind":"pith_short_8","alias_value":"VZJPDOAX","created_at":"2026-07-05T08:12:19Z"}],"graph_snapshots":[{"event_id":"sha256:d55ccf1940d416da42b6bf065f30477bc51c42bb1a12c5268b226175c95515d5","target":"graph","created_at":"2026-07-05T08:12:19Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2404.17056/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Large-scale coronal plasma evolutions can be adequately described by magnetohydrodynamics (MHD) equations. However, full multi-dimensional MHD simulations require substantial computational resources. Given the low plasma $\\beta$ in the solar corona, in many coronal studies, it suffices to approximate the magnetic field to remain topologically fixed and effectively conduct one-dimensional (1D) hydrodynamic (HD) simulations instead. This approach is often employed in studies of coronal loops and their liability to form condensations related to thermal instability. While 1D HD simulations along g","authors_text":"Rony Keppens, Xiaohong Li, Yuhao Zhou","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-25T21:41:30Z","title":"Frozen-field Modeling of Coronal Condensations with MPI-AMRVAC I: Demonstration in two-dimensional models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2404.17056","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":"sha256:6279159d14dadb25d6d168cb380b3aa7a983a65116aee0fee061b2f753103efe","target":"record","created_at":"2026-07-05T08:12:19Z","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":"02c17df7356d1536b2ee3fe0f74745a4c091fe12455bf2351ffb2d14dccf9617","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2024-04-25T21:41:30Z","title_canon_sha256":"f6bd314703d23bd68bc5b4fb2bffc1933d082dc9fa1674b404c86be3e760cb37"},"schema_version":"1.0","source":{"id":"2404.17056","kind":"arxiv","version":1}},"canonical_sha256":"ae52f1b8175f844c27c63518d45c30f63957200a8840760bd6c309364725e796","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ae52f1b8175f844c27c63518d45c30f63957200a8840760bd6c309364725e796","first_computed_at":"2026-07-05T08:12:19.111189Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:12:19.111189Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vXdCLoWND+nbdqQ/afYADGD+4FZXyFo+gk3V9omtOQ2RPAk/uDn6Uip7Qe5OY6hUm10MewGR3O5t9QjSkzQpCA==","signature_status":"signed_v1","signed_at":"2026-07-05T08:12:19.111582Z","signed_message":"canonical_sha256_bytes"},"source_id":"2404.17056","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6279159d14dadb25d6d168cb380b3aa7a983a65116aee0fee061b2f753103efe","sha256:d55ccf1940d416da42b6bf065f30477bc51c42bb1a12c5268b226175c95515d5"],"state_sha256":"c26084a5727fa549723c387163c3340c1182fb3c70691dcf4fe1086a18d4d89c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EM6x7qe/rsLTiZMBD06g5oH2uaDKxkQnQCcvt5T0z8auW+5YC+MRIjrAmmo2GWsqeb2MO+H5kVloX/OWbgN0BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T01:31:05.503515Z","bundle_sha256":"007c2f604d02a4628a546648a31719d87fa1747ef224331be33057aa9f70c1bc"}}