{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:WJXINJ3B76BQNUWJVGUPD3FTJA","short_pith_number":"pith:WJXINJ3B","canonical_record":{"source":{"id":"1208.1490","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-07T18:47:03Z","cross_cats_sorted":[],"title_canon_sha256":"bf2ad6fbbb32b830dd2f25823c49331830f0b29dd00a6f6cff8ec13d32bd8e2a","abstract_canon_sha256":"f8f58e776c4ef995aa6d2dd8f9f2fe227f03e87104565041911b42755c4c30e8"},"schema_version":"1.0"},"canonical_sha256":"b26e86a761ff8306d2c9a9a8f1ecb3483c3ebd079547aaa4d1839beb0c54bcc7","source":{"kind":"arxiv","id":"1208.1490","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.1490","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"arxiv_version","alias_value":"1208.1490v1","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.1490","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"pith_short_12","alias_value":"WJXINJ3B76BQ","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WJXINJ3B76BQNUWJ","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WJXINJ3B","created_at":"2026-05-18T12:27:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:WJXINJ3B76BQNUWJVGUPD3FTJA","target":"record","payload":{"canonical_record":{"source":{"id":"1208.1490","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-07T18:47:03Z","cross_cats_sorted":[],"title_canon_sha256":"bf2ad6fbbb32b830dd2f25823c49331830f0b29dd00a6f6cff8ec13d32bd8e2a","abstract_canon_sha256":"f8f58e776c4ef995aa6d2dd8f9f2fe227f03e87104565041911b42755c4c30e8"},"schema_version":"1.0"},"canonical_sha256":"b26e86a761ff8306d2c9a9a8f1ecb3483c3ebd079547aaa4d1839beb0c54bcc7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:22.093520Z","signature_b64":"jOJywvKj10hSU5WeY/3Vqt8gQxTO9Jq+tXmjEh2Q6+SjZdBx45KLDNCq06G4Z2cLul3yM6gmsyhERul580jfDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b26e86a761ff8306d2c9a9a8f1ecb3483c3ebd079547aaa4d1839beb0c54bcc7","last_reissued_at":"2026-05-18T01:55:22.092975Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:22.092975Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1208.1490","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":"2026-05-18T01:55:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7XkAgFsUQIEbvZD+Zjx1elbOYNd5zo+dUTLhicuZx2EycSKBdMy9i+SnyHkFUfS6QTkDYe/f6/IzmdK6ODDqDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:04:59.865292Z"},"content_sha256":"f98e8411708ec310326e30393204903407aa67ab92582dadbb84d563de6eccea","schema_version":"1.0","event_id":"sha256:f98e8411708ec310326e30393204903407aa67ab92582dadbb84d563de6eccea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:WJXINJ3B76BQNUWJVGUPD3FTJA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar Magnetic Flux Tube Simulations with Time-Dependent Ionization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Diaa E. Fawzy, Manfred Cuntz, Wolfgang Rammacher","submitted_at":"2012-08-07T18:47:03Z","abstract_excerpt":"In the present work we expand the study of time-dependent ionization previously identified to be of pivotal importance for acoustic waves in solar magnetic flux tube simulations. We focus on longitudinal tube waves (LTW) known to be an important heating agent of solar magnetic regions. Our models also consider new results of wave energy generation as well as an updated determination of the mixing length of convection now identified as 1.8 scale heights in the upper solar convective layers. We present 1-D wave simulations for the solar chromosphere by studying tubes of different spreading as fu"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1490","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":"2026-05-18T01:55:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cr2xFymZr4OI5wWDmlwP9hN8WXw4cArDTyzMlRTAAkHRuk7a+AZfSWE9NAVdwErM9muVHd1PU0Qjbv2/BQWKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T04:04:59.865706Z"},"content_sha256":"b7585ed0e1269a8808caa93e3700d1ef28a8bef392f4f64e8cb013dfee9038c9","schema_version":"1.0","event_id":"sha256:b7585ed0e1269a8808caa93e3700d1ef28a8bef392f4f64e8cb013dfee9038c9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WJXINJ3B76BQNUWJVGUPD3FTJA/bundle.json","state_url":"https://pith.science/pith/WJXINJ3B76BQNUWJVGUPD3FTJA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WJXINJ3B76BQNUWJVGUPD3FTJA/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":"2026-05-26T04:04:59Z","links":{"resolver":"https://pith.science/pith/WJXINJ3B76BQNUWJVGUPD3FTJA","bundle":"https://pith.science/pith/WJXINJ3B76BQNUWJVGUPD3FTJA/bundle.json","state":"https://pith.science/pith/WJXINJ3B76BQNUWJVGUPD3FTJA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WJXINJ3B76BQNUWJVGUPD3FTJA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:WJXINJ3B76BQNUWJVGUPD3FTJA","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":"f8f58e776c4ef995aa6d2dd8f9f2fe227f03e87104565041911b42755c4c30e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-07T18:47:03Z","title_canon_sha256":"bf2ad6fbbb32b830dd2f25823c49331830f0b29dd00a6f6cff8ec13d32bd8e2a"},"schema_version":"1.0","source":{"id":"1208.1490","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1208.1490","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"arxiv_version","alias_value":"1208.1490v1","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1208.1490","created_at":"2026-05-18T01:55:22Z"},{"alias_kind":"pith_short_12","alias_value":"WJXINJ3B76BQ","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_16","alias_value":"WJXINJ3B76BQNUWJ","created_at":"2026-05-18T12:27:25Z"},{"alias_kind":"pith_short_8","alias_value":"WJXINJ3B","created_at":"2026-05-18T12:27:25Z"}],"graph_snapshots":[{"event_id":"sha256:b7585ed0e1269a8808caa93e3700d1ef28a8bef392f4f64e8cb013dfee9038c9","target":"graph","created_at":"2026-05-18T01:55:22Z","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 the present work we expand the study of time-dependent ionization previously identified to be of pivotal importance for acoustic waves in solar magnetic flux tube simulations. We focus on longitudinal tube waves (LTW) known to be an important heating agent of solar magnetic regions. Our models also consider new results of wave energy generation as well as an updated determination of the mixing length of convection now identified as 1.8 scale heights in the upper solar convective layers. We present 1-D wave simulations for the solar chromosphere by studying tubes of different spreading as fu","authors_text":"Diaa E. Fawzy, Manfred Cuntz, Wolfgang Rammacher","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-07T18:47:03Z","title":"Solar Magnetic Flux Tube Simulations with Time-Dependent Ionization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1208.1490","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:f98e8411708ec310326e30393204903407aa67ab92582dadbb84d563de6eccea","target":"record","created_at":"2026-05-18T01:55:22Z","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":"f8f58e776c4ef995aa6d2dd8f9f2fe227f03e87104565041911b42755c4c30e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-08-07T18:47:03Z","title_canon_sha256":"bf2ad6fbbb32b830dd2f25823c49331830f0b29dd00a6f6cff8ec13d32bd8e2a"},"schema_version":"1.0","source":{"id":"1208.1490","kind":"arxiv","version":1}},"canonical_sha256":"b26e86a761ff8306d2c9a9a8f1ecb3483c3ebd079547aaa4d1839beb0c54bcc7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b26e86a761ff8306d2c9a9a8f1ecb3483c3ebd079547aaa4d1839beb0c54bcc7","first_computed_at":"2026-05-18T01:55:22.092975Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:55:22.092975Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jOJywvKj10hSU5WeY/3Vqt8gQxTO9Jq+tXmjEh2Q6+SjZdBx45KLDNCq06G4Z2cLul3yM6gmsyhERul580jfDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:55:22.093520Z","signed_message":"canonical_sha256_bytes"},"source_id":"1208.1490","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f98e8411708ec310326e30393204903407aa67ab92582dadbb84d563de6eccea","sha256:b7585ed0e1269a8808caa93e3700d1ef28a8bef392f4f64e8cb013dfee9038c9"],"state_sha256":"41395ff9e031ff45f0728e657c891c481d51d8d4f6ce913b18e3c5e383567d2c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Qhh8esl7JKGUuVwbsDv2hfurPzagUbjpQ285ginzVeF+VmnH1TwKiioFq5gvC2XNUAqlT++rZsFMA8ZwDrEVBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T04:04:59.868776Z","bundle_sha256":"dc1ef0c40553ce60d8eaecd87b93e434b50d079c85c8a2ddd37361d0bc9a695d"}}