{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:UPR3OHVGEBCPDKRNSVSJGR5ISU","short_pith_number":"pith:UPR3OHVG","canonical_record":{"source":{"id":"0811.3416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-20T20:51:55Z","cross_cats_sorted":[],"title_canon_sha256":"3e18a86281bb813e1f2e44c033495da82d1fe7c4413d51a6cf46d2c9fd3364a5","abstract_canon_sha256":"605cd8e45870d58513db06fcda81382d8d045bdaa18e99b118e8d4ad6b3997d4"},"schema_version":"1.0"},"canonical_sha256":"a3e3b71ea62044f1aa2d95649347a8951b51bbc683e9a345709e53167f3e2c74","source":{"kind":"arxiv","id":"0811.3416","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.3416","created_at":"2026-05-18T02:15:13Z"},{"alias_kind":"arxiv_version","alias_value":"0811.3416v1","created_at":"2026-05-18T02:15:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.3416","created_at":"2026-05-18T02:15:13Z"},{"alias_kind":"pith_short_12","alias_value":"UPR3OHVGEBCP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"UPR3OHVGEBCPDKRN","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"UPR3OHVG","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:UPR3OHVGEBCPDKRNSVSJGR5ISU","target":"record","payload":{"canonical_record":{"source":{"id":"0811.3416","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-20T20:51:55Z","cross_cats_sorted":[],"title_canon_sha256":"3e18a86281bb813e1f2e44c033495da82d1fe7c4413d51a6cf46d2c9fd3364a5","abstract_canon_sha256":"605cd8e45870d58513db06fcda81382d8d045bdaa18e99b118e8d4ad6b3997d4"},"schema_version":"1.0"},"canonical_sha256":"a3e3b71ea62044f1aa2d95649347a8951b51bbc683e9a345709e53167f3e2c74","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:15:13.650649Z","signature_b64":"bAaEt6vuNzPeuT5Ul9f7NhU7Mzkh8OVptLjg0CAaPfHUb/nR7psUQGfeGsW7JtZDzga0t8yx26ZauB+P9z2LBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3e3b71ea62044f1aa2d95649347a8951b51bbc683e9a345709e53167f3e2c74","last_reissued_at":"2026-05-18T02:15:13.650054Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:15:13.650054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0811.3416","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":"2026-05-18T02:15:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Cvjzh4dSTvUDNBhPoSEUxtm03yWVoozqiWTB7EOWtAzb/ZL3hxJQw9McabGK5ChMjIgbYISka6mfNgEddy3iDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:26:31.405743Z"},"content_sha256":"d9ee3f90a84fa17bbf84645fc6419768a71e36202076ffbd8333dc0a1c3a1d1a","schema_version":"1.0","event_id":"sha256:d9ee3f90a84fa17bbf84645fc6419768a71e36202076ffbd8333dc0a1c3a1d1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:UPR3OHVGEBCPDKRNSVSJGR5ISU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetohydrodynamic jets from different magnetic field configurations","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Christian Fendt","submitted_at":"2008-11-20T20:51:55Z","abstract_excerpt":"Using axisymmetric MHD simulations we investigate how the overall jet formation is affected by a variation in the disk magnetic flux profile and/or the existence of a central stellar magnetosphere. Our simulations evolve from an initial, hydrostatic equilibrium state in a force-free magnetic field configuration. We find a unique relation between the collimation degree and the disk wind magnetization power law exponent. The collimation degree decreases for steeper disk magnetic field profiles. Highly collimated outflows resulting from a flat profile tend to be unsteady. We further consider a ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3416","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":"2026-05-18T02:15:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/TypLTKeMjlCvh+udh/QqPBP2APemiSQq+8Z+aZOfCM0sfGYlrMPTNFFuDORSlk8hak3lR9ddLt3IITnU84IDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T16:26:31.406142Z"},"content_sha256":"34923c3b8035e3e7ea4f82757ab40eb13e91ac692abd7925d0f463ea4ea3c4d3","schema_version":"1.0","event_id":"sha256:34923c3b8035e3e7ea4f82757ab40eb13e91ac692abd7925d0f463ea4ea3c4d3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU/bundle.json","state_url":"https://pith.science/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU/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":"2026-05-28T16:26:31Z","links":{"resolver":"https://pith.science/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU","bundle":"https://pith.science/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU/bundle.json","state":"https://pith.science/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UPR3OHVGEBCPDKRNSVSJGR5ISU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:UPR3OHVGEBCPDKRNSVSJGR5ISU","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":"605cd8e45870d58513db06fcda81382d8d045bdaa18e99b118e8d4ad6b3997d4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-20T20:51:55Z","title_canon_sha256":"3e18a86281bb813e1f2e44c033495da82d1fe7c4413d51a6cf46d2c9fd3364a5"},"schema_version":"1.0","source":{"id":"0811.3416","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0811.3416","created_at":"2026-05-18T02:15:13Z"},{"alias_kind":"arxiv_version","alias_value":"0811.3416v1","created_at":"2026-05-18T02:15:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0811.3416","created_at":"2026-05-18T02:15:13Z"},{"alias_kind":"pith_short_12","alias_value":"UPR3OHVGEBCP","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"UPR3OHVGEBCPDKRN","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"UPR3OHVG","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:34923c3b8035e3e7ea4f82757ab40eb13e91ac692abd7925d0f463ea4ea3c4d3","target":"graph","created_at":"2026-05-18T02:15:13Z","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":"Using axisymmetric MHD simulations we investigate how the overall jet formation is affected by a variation in the disk magnetic flux profile and/or the existence of a central stellar magnetosphere. Our simulations evolve from an initial, hydrostatic equilibrium state in a force-free magnetic field configuration. We find a unique relation between the collimation degree and the disk wind magnetization power law exponent. The collimation degree decreases for steeper disk magnetic field profiles. Highly collimated outflows resulting from a flat profile tend to be unsteady. We further consider a ma","authors_text":"Christian Fendt","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-20T20:51:55Z","title":"Magnetohydrodynamic jets from different magnetic field configurations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0811.3416","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:d9ee3f90a84fa17bbf84645fc6419768a71e36202076ffbd8333dc0a1c3a1d1a","target":"record","created_at":"2026-05-18T02:15:13Z","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":"605cd8e45870d58513db06fcda81382d8d045bdaa18e99b118e8d4ad6b3997d4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-11-20T20:51:55Z","title_canon_sha256":"3e18a86281bb813e1f2e44c033495da82d1fe7c4413d51a6cf46d2c9fd3364a5"},"schema_version":"1.0","source":{"id":"0811.3416","kind":"arxiv","version":1}},"canonical_sha256":"a3e3b71ea62044f1aa2d95649347a8951b51bbc683e9a345709e53167f3e2c74","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3e3b71ea62044f1aa2d95649347a8951b51bbc683e9a345709e53167f3e2c74","first_computed_at":"2026-05-18T02:15:13.650054Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:15:13.650054Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bAaEt6vuNzPeuT5Ul9f7NhU7Mzkh8OVptLjg0CAaPfHUb/nR7psUQGfeGsW7JtZDzga0t8yx26ZauB+P9z2LBg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:15:13.650649Z","signed_message":"canonical_sha256_bytes"},"source_id":"0811.3416","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d9ee3f90a84fa17bbf84645fc6419768a71e36202076ffbd8333dc0a1c3a1d1a","sha256:34923c3b8035e3e7ea4f82757ab40eb13e91ac692abd7925d0f463ea4ea3c4d3"],"state_sha256":"c4c23d775346a398328e8fe053e026eded55a145ba5678aaf7c44a2357bed3d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RIb7SZXEB4+B/GSy2nlKAZNu7P5n3kcSNGjdLqJ8bLYgh+3eWRMhxsC3E8iUyZ/q3SGRqRdqFWwisdI32Bv4Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T16:26:31.409546Z","bundle_sha256":"af82852092353f867d048be3ea93efb3988a9f57a6ba399df4c820c27f873cd1"}}