{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:6UWLCGJEGUBCK7VFZCPAVG4Y3P","short_pith_number":"pith:6UWLCGJE","canonical_record":{"source":{"id":"0909.2396","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-13T06:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"a53476a9eecbf770ab8d700171278bb8940cb49c4ca86d01a043d2254eb51112","abstract_canon_sha256":"6dea3b4573fc1069f4a611d41dab94ce0108a4e11ca7caaaa358ef830c79406b"},"schema_version":"1.0"},"canonical_sha256":"f52cb119243502257ea5c89e0a9b98dbdbbfc8ce8103ca544bf66c19cd033504","source":{"kind":"arxiv","id":"0909.2396","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2396","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2396v1","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2396","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"6UWLCGJEGUBC","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"6UWLCGJEGUBCK7VF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"6UWLCGJE","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:6UWLCGJEGUBCK7VFZCPAVG4Y3P","target":"record","payload":{"canonical_record":{"source":{"id":"0909.2396","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-13T06:18:08Z","cross_cats_sorted":[],"title_canon_sha256":"a53476a9eecbf770ab8d700171278bb8940cb49c4ca86d01a043d2254eb51112","abstract_canon_sha256":"6dea3b4573fc1069f4a611d41dab94ce0108a4e11ca7caaaa358ef830c79406b"},"schema_version":"1.0"},"canonical_sha256":"f52cb119243502257ea5c89e0a9b98dbdbbfc8ce8103ca544bf66c19cd033504","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:11:48.436450Z","signature_b64":"SHxMFeKs50ZiPPGEKzP7wF7DUvNbhArJ8tekQ5G9CYbgkWLqG/HiDdGogFs7RvIl6836q+mg/CerZtO0+vXWCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f52cb119243502257ea5c89e0a9b98dbdbbfc8ce8103ca544bf66c19cd033504","last_reissued_at":"2026-05-18T02:11:48.435750Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:11:48.435750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0909.2396","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":"2026-05-18T02:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HAZVhwyvsyUj/S8FNtm3Mwo87jVxbR0+kipcOmtYdUFQaPdlJlfCv6LmVKbzHskTYnSjpVUN6QtI279GStLCBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:35:38.266183Z"},"content_sha256":"533428edd4c534248e7c8483026078340c36ac488b0d230cd1abb8c15355cbbc","schema_version":"1.0","event_id":"sha256:533428edd4c534248e7c8483026078340c36ac488b0d230cd1abb8c15355cbbc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:6UWLCGJEGUBCK7VFZCPAVG4Y3P","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Wind-driving protostellar accretion discs. I. Formulation and parameter constraints","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. K\\\"onigl, M. Wardle, R. Salmeron","submitted_at":"2009-09-13T06:18:08Z","abstract_excerpt":"We study a model of weakly ionized, protostellar accretion discs that are threaded by a large-scale, ordered magnetic field and power a centrifugally driven wind. We consider the limiting case where the wind is the main repository of the excess disc angular momentum and generalize the radially localized disc model of Wardle & K\\\"onigl (1993), which focussed on the ambipolar diffusion regime, to other field diffusivity regimes, notably Hall and Ohm. We present a general formulation of the problem for nearly Keplerian, vertically isothermal discs using both the conductivity-tensor and the multi-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2396","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":"2026-05-18T02:11:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SKGyKQhk8F3nv+HMPVA8A/M8mfhriY+tEqNIFM0RY6SjoI6ou/kkRCEU7VtGCkwQ1TtxfCNwj5GoDFfA2ncuCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T23:35:38.266541Z"},"content_sha256":"d1047b6206727355633f3be0eaf2d4d0d90f96e7e5357c91d6a2d49375976d40","schema_version":"1.0","event_id":"sha256:d1047b6206727355633f3be0eaf2d4d0d90f96e7e5357c91d6a2d49375976d40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P/bundle.json","state_url":"https://pith.science/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P/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":"2026-06-28T23:35:38Z","links":{"resolver":"https://pith.science/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P","bundle":"https://pith.science/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P/bundle.json","state":"https://pith.science/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6UWLCGJEGUBCK7VFZCPAVG4Y3P/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:6UWLCGJEGUBCK7VFZCPAVG4Y3P","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":"6dea3b4573fc1069f4a611d41dab94ce0108a4e11ca7caaaa358ef830c79406b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-13T06:18:08Z","title_canon_sha256":"a53476a9eecbf770ab8d700171278bb8940cb49c4ca86d01a043d2254eb51112"},"schema_version":"1.0","source":{"id":"0909.2396","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0909.2396","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"arxiv_version","alias_value":"0909.2396v1","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0909.2396","created_at":"2026-05-18T02:11:48Z"},{"alias_kind":"pith_short_12","alias_value":"6UWLCGJEGUBC","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"6UWLCGJEGUBCK7VF","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"6UWLCGJE","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:d1047b6206727355633f3be0eaf2d4d0d90f96e7e5357c91d6a2d49375976d40","target":"graph","created_at":"2026-05-18T02:11:48Z","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 study a model of weakly ionized, protostellar accretion discs that are threaded by a large-scale, ordered magnetic field and power a centrifugally driven wind. We consider the limiting case where the wind is the main repository of the excess disc angular momentum and generalize the radially localized disc model of Wardle & K\\\"onigl (1993), which focussed on the ambipolar diffusion regime, to other field diffusivity regimes, notably Hall and Ohm. We present a general formulation of the problem for nearly Keplerian, vertically isothermal discs using both the conductivity-tensor and the multi-","authors_text":"A. K\\\"onigl, M. Wardle, R. Salmeron","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-13T06:18:08Z","title":"Wind-driving protostellar accretion discs. I. Formulation and parameter constraints"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0909.2396","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":"sha256:533428edd4c534248e7c8483026078340c36ac488b0d230cd1abb8c15355cbbc","target":"record","created_at":"2026-05-18T02:11:48Z","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":"6dea3b4573fc1069f4a611d41dab94ce0108a4e11ca7caaaa358ef830c79406b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-09-13T06:18:08Z","title_canon_sha256":"a53476a9eecbf770ab8d700171278bb8940cb49c4ca86d01a043d2254eb51112"},"schema_version":"1.0","source":{"id":"0909.2396","kind":"arxiv","version":1}},"canonical_sha256":"f52cb119243502257ea5c89e0a9b98dbdbbfc8ce8103ca544bf66c19cd033504","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f52cb119243502257ea5c89e0a9b98dbdbbfc8ce8103ca544bf66c19cd033504","first_computed_at":"2026-05-18T02:11:48.435750Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:11:48.435750Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"SHxMFeKs50ZiPPGEKzP7wF7DUvNbhArJ8tekQ5G9CYbgkWLqG/HiDdGogFs7RvIl6836q+mg/CerZtO0+vXWCA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:11:48.436450Z","signed_message":"canonical_sha256_bytes"},"source_id":"0909.2396","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:533428edd4c534248e7c8483026078340c36ac488b0d230cd1abb8c15355cbbc","sha256:d1047b6206727355633f3be0eaf2d4d0d90f96e7e5357c91d6a2d49375976d40"],"state_sha256":"032b6176f0e3be6fb6a17a9b94360ab5e8628bfd8b317f091add8c198abed21b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"naAm4PLY26SHeeD2Du8RzmGordMdJID0LNAbYOJfTvyrK17G3Rhp8wvVSHRiC47lGpJkETnxYaWyuE4HWrqyAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T23:35:38.268346Z","bundle_sha256":"a72ab637acdb9b02bb554b2f103a29c8963cdf9d05f905c9dd0c99d26486f354"}}