{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:B4QIZI4NYC6USDD6YYHAFO57IZ","short_pith_number":"pith:B4QIZI4N","canonical_record":{"source":{"id":"astro-ph/0602419","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-20T18:00:31Z","cross_cats_sorted":[],"title_canon_sha256":"3c96798684c1e0436d9461406efb079ff6059a5c59b0f7c607e6a3685ff94fa5","abstract_canon_sha256":"a76a15a25b7fbfa9c0ecbbd3feeaadb55501251ccf9c86066cf4708968c4da65"},"schema_version":"1.0"},"canonical_sha256":"0f208ca38dc0bd490c7ec60e02bbbf466d27c5c3cb4071c1e18d80e6d9ad4c62","source":{"kind":"arxiv","id":"astro-ph/0602419","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602419","created_at":"2026-05-18T04:36:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602419v2","created_at":"2026-05-18T04:36:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602419","created_at":"2026-05-18T04:36:29Z"},{"alias_kind":"pith_short_12","alias_value":"B4QIZI4NYC6U","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"B4QIZI4NYC6USDD6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"B4QIZI4N","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:B4QIZI4NYC6USDD6YYHAFO57IZ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0602419","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-20T18:00:31Z","cross_cats_sorted":[],"title_canon_sha256":"3c96798684c1e0436d9461406efb079ff6059a5c59b0f7c607e6a3685ff94fa5","abstract_canon_sha256":"a76a15a25b7fbfa9c0ecbbd3feeaadb55501251ccf9c86066cf4708968c4da65"},"schema_version":"1.0"},"canonical_sha256":"0f208ca38dc0bd490c7ec60e02bbbf466d27c5c3cb4071c1e18d80e6d9ad4c62","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:36:29.383250Z","signature_b64":"Y47LDl73raIFVdOEM6PCgnTCvCDz+PRpHM9DzdCpUTMRe/adXkQncG3hmrN4nMy8EcIOQavq8d/BE3KItHi8BA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f208ca38dc0bd490c7ec60e02bbbf466d27c5c3cb4071c1e18d80e6d9ad4c62","last_reissued_at":"2026-05-18T04:36:29.382658Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:36:29.382658Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0602419","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:36:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+xx4G1O5fX0b4LnkhuSsPofVnodV0HJWxnHeEDIjBe14dEXx/MymuoaBMpam1x7xrsgJ8WGE9taoPf8D2GzuDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:43:45.702198Z"},"content_sha256":"fde996f7c79fff4ca7e961dd7bf9c2f2c9f942aa4a3f71c90e9806c8120c8345","schema_version":"1.0","event_id":"sha256:fde996f7c79fff4ca7e961dd7bf9c2f2c9f942aa4a3f71c90e9806c8120c8345"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:B4QIZI4NYC6USDD6YYHAFO57IZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Stellar Explosions by Magnetic Towers","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andrew I. MacFadyen, Dmitri A. Uzdensky","submitted_at":"2006-02-20T18:00:31Z","abstract_excerpt":"We propose a magnetic mechanism for the collimated explosion of a massive star relevant for GRBs, XRFs and asymmetric supernovae. We apply Lynden-Bell's magnetic tower scenario to the interior of a massive rotating star after the core has collapsed to form a black hole with an accretion disk or a millisecond magnetar acting as a central engine. We solve the force-free Grad-Shafranov equation to calculate the magnetic structure and growth of a tower embedded in a stellar environment. The pressure of the toroidal magnetic field, continuously generated by differential rotation of the central engi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602419","kind":"arxiv","version":2},"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":"2026-05-18T04:36:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4CzRAgop8st+xG5jRvsIRroYy0P/IfFLfPDXV7+uc+Ek5hHysfdARYRSFcZuPYlohfhLGOH9ttg2VXdcyWGpDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T03:43:45.702560Z"},"content_sha256":"16648938d2b88fe62041f19f6cdfc7ee6f749f2f9d4d829248d9baf1a0fb2972","schema_version":"1.0","event_id":"sha256:16648938d2b88fe62041f19f6cdfc7ee6f749f2f9d4d829248d9baf1a0fb2972"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B4QIZI4NYC6USDD6YYHAFO57IZ/bundle.json","state_url":"https://pith.science/pith/B4QIZI4NYC6USDD6YYHAFO57IZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B4QIZI4NYC6USDD6YYHAFO57IZ/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":"2026-06-03T03:43:45Z","links":{"resolver":"https://pith.science/pith/B4QIZI4NYC6USDD6YYHAFO57IZ","bundle":"https://pith.science/pith/B4QIZI4NYC6USDD6YYHAFO57IZ/bundle.json","state":"https://pith.science/pith/B4QIZI4NYC6USDD6YYHAFO57IZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B4QIZI4NYC6USDD6YYHAFO57IZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:B4QIZI4NYC6USDD6YYHAFO57IZ","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":"a76a15a25b7fbfa9c0ecbbd3feeaadb55501251ccf9c86066cf4708968c4da65","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-20T18:00:31Z","title_canon_sha256":"3c96798684c1e0436d9461406efb079ff6059a5c59b0f7c607e6a3685ff94fa5"},"schema_version":"1.0","source":{"id":"astro-ph/0602419","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0602419","created_at":"2026-05-18T04:36:29Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0602419v2","created_at":"2026-05-18T04:36:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0602419","created_at":"2026-05-18T04:36:29Z"},{"alias_kind":"pith_short_12","alias_value":"B4QIZI4NYC6U","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"B4QIZI4NYC6USDD6","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"B4QIZI4N","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:16648938d2b88fe62041f19f6cdfc7ee6f749f2f9d4d829248d9baf1a0fb2972","target":"graph","created_at":"2026-05-18T04:36:29Z","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 propose a magnetic mechanism for the collimated explosion of a massive star relevant for GRBs, XRFs and asymmetric supernovae. We apply Lynden-Bell's magnetic tower scenario to the interior of a massive rotating star after the core has collapsed to form a black hole with an accretion disk or a millisecond magnetar acting as a central engine. We solve the force-free Grad-Shafranov equation to calculate the magnetic structure and growth of a tower embedded in a stellar environment. The pressure of the toroidal magnetic field, continuously generated by differential rotation of the central engi","authors_text":"Andrew I. MacFadyen, Dmitri A. Uzdensky","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-02-20T18:00:31Z","title":"Stellar Explosions by Magnetic Towers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0602419","kind":"arxiv","version":2},"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:fde996f7c79fff4ca7e961dd7bf9c2f2c9f942aa4a3f71c90e9806c8120c8345","target":"record","created_at":"2026-05-18T04:36:29Z","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":"a76a15a25b7fbfa9c0ecbbd3feeaadb55501251ccf9c86066cf4708968c4da65","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-02-20T18:00:31Z","title_canon_sha256":"3c96798684c1e0436d9461406efb079ff6059a5c59b0f7c607e6a3685ff94fa5"},"schema_version":"1.0","source":{"id":"astro-ph/0602419","kind":"arxiv","version":2}},"canonical_sha256":"0f208ca38dc0bd490c7ec60e02bbbf466d27c5c3cb4071c1e18d80e6d9ad4c62","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f208ca38dc0bd490c7ec60e02bbbf466d27c5c3cb4071c1e18d80e6d9ad4c62","first_computed_at":"2026-05-18T04:36:29.382658Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:36:29.382658Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y47LDl73raIFVdOEM6PCgnTCvCDz+PRpHM9DzdCpUTMRe/adXkQncG3hmrN4nMy8EcIOQavq8d/BE3KItHi8BA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:36:29.383250Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0602419","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fde996f7c79fff4ca7e961dd7bf9c2f2c9f942aa4a3f71c90e9806c8120c8345","sha256:16648938d2b88fe62041f19f6cdfc7ee6f749f2f9d4d829248d9baf1a0fb2972"],"state_sha256":"5cde14b0f9e7a773efadc649800ab7428f99aa0f1519514d3b0dccdab5d3c486"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VbNEc/Yjr5iK8SepmDIG+iEiEOryP4CsM4OgEoqKhUFqLeOqzyZp50rZsjMODScI2iLO+mert2gUehfnQ50sCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T03:43:45.704658Z","bundle_sha256":"c988946676a9b725c3902650e6d491e6e8f70e456f429e55ebec20182244bcc9"}}