{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2008:P6FRW35FBJTHFFLDYLA4LSJTNA","short_pith_number":"pith:P6FRW35F","canonical_record":{"source":{"id":"0806.3104","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T23:07:12Z","cross_cats_sorted":[],"title_canon_sha256":"7686a54d54df2e66f4d622e3e00c9fb3d87d92dff9382ffb56054c6da8d14d67","abstract_canon_sha256":"784e1a1772353fe830dd4f55b8407bd67e3043510909e7f26ac1673a69a19b2d"},"schema_version":"1.0"},"canonical_sha256":"7f8b1b6fa50a66729563c2c1c5c9336806c63967ec594396ad3e72fcda346373","source":{"kind":"arxiv","id":"0806.3104","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.3104","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"0806.3104v1","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.3104","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"P6FRW35FBJTH","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"P6FRW35FBJTHFFLD","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"P6FRW35F","created_at":"2026-05-18T12:25:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2008:P6FRW35FBJTHFFLDYLA4LSJTNA","target":"record","payload":{"canonical_record":{"source":{"id":"0806.3104","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T23:07:12Z","cross_cats_sorted":[],"title_canon_sha256":"7686a54d54df2e66f4d622e3e00c9fb3d87d92dff9382ffb56054c6da8d14d67","abstract_canon_sha256":"784e1a1772353fe830dd4f55b8407bd67e3043510909e7f26ac1673a69a19b2d"},"schema_version":"1.0"},"canonical_sha256":"7f8b1b6fa50a66729563c2c1c5c9336806c63967ec594396ad3e72fcda346373","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:18:13.437151Z","signature_b64":"QFr4eof8ZXOKHGV6ki6ld6H7IgVkJybsv6cI6EWY+8+pIOrwEH/93dVz7pVIOfXhvUpHJNQMh4xo/S/XuRb2Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f8b1b6fa50a66729563c2c1c5c9336806c63967ec594396ad3e72fcda346373","last_reissued_at":"2026-05-18T04:18:13.436664Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:18:13.436664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0806.3104","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":"2026-05-18T04:18:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7OaeapBjVbEQB0g0dn9by6VwR+U8MHFOeyCpZd7Unyz+49ZTtjQ5QnMn39DTXXAOp2M8JveQ7dXiCA7iX1xnBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:04:57.095336Z"},"content_sha256":"61942fee13f8ff324b56a6210b3a53e0a67e6a39ff84b2135161ca2109916f1a","schema_version":"1.0","event_id":"sha256:61942fee13f8ff324b56a6210b3a53e0a67e6a39ff84b2135161ca2109916f1a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2008:P6FRW35FBJTHFFLDYLA4LSJTNA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic field generation by the stationary accretion shock instability","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Mezzacappa, C. Y. Cardall, E. Endeve, R. D. Budiardja","submitted_at":"2008-06-18T23:07:12Z","abstract_excerpt":"By adding a weak magnetic field to a spherically symmetric fluid configuration that caricatures a stalled shock in the post-bounce supernova environment, we explore the capacity of the stationary accretion shock instability (SASI) to generate magnetic fields. The SASI develops upon perturbation of the initial condition, and the ensuing flow generates--{\\em in the absence of rotation}--dynamically significant magnetic fields ($\\sim 10^{15}$ G) on a time scale that is relevant for the explosion mechanism of core-collapse supernovae. We describe our model, present some recent results, and discuss"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.3104","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":"2026-05-18T04:18:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CWxY/aDxcSeepWjxb0v91YV5s/o6hOT5JBqCczpkjSSm1QGvey3tYZStcv62UOzX6X/2GQn9EyJK/eYiqjiiCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T12:04:57.095725Z"},"content_sha256":"35d578c9db1bdb5f96dd6e71d258e1e3d46d60d4ce8ba91ed8cb973b50853a3c","schema_version":"1.0","event_id":"sha256:35d578c9db1bdb5f96dd6e71d258e1e3d46d60d4ce8ba91ed8cb973b50853a3c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P6FRW35FBJTHFFLDYLA4LSJTNA/bundle.json","state_url":"https://pith.science/pith/P6FRW35FBJTHFFLDYLA4LSJTNA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P6FRW35FBJTHFFLDYLA4LSJTNA/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":"2026-05-30T12:04:57Z","links":{"resolver":"https://pith.science/pith/P6FRW35FBJTHFFLDYLA4LSJTNA","bundle":"https://pith.science/pith/P6FRW35FBJTHFFLDYLA4LSJTNA/bundle.json","state":"https://pith.science/pith/P6FRW35FBJTHFFLDYLA4LSJTNA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P6FRW35FBJTHFFLDYLA4LSJTNA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2008:P6FRW35FBJTHFFLDYLA4LSJTNA","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":"784e1a1772353fe830dd4f55b8407bd67e3043510909e7f26ac1673a69a19b2d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T23:07:12Z","title_canon_sha256":"7686a54d54df2e66f4d622e3e00c9fb3d87d92dff9382ffb56054c6da8d14d67"},"schema_version":"1.0","source":{"id":"0806.3104","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0806.3104","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"arxiv_version","alias_value":"0806.3104v1","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0806.3104","created_at":"2026-05-18T04:18:13Z"},{"alias_kind":"pith_short_12","alias_value":"P6FRW35FBJTH","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_16","alias_value":"P6FRW35FBJTHFFLD","created_at":"2026-05-18T12:25:57Z"},{"alias_kind":"pith_short_8","alias_value":"P6FRW35F","created_at":"2026-05-18T12:25:57Z"}],"graph_snapshots":[{"event_id":"sha256:35d578c9db1bdb5f96dd6e71d258e1e3d46d60d4ce8ba91ed8cb973b50853a3c","target":"graph","created_at":"2026-05-18T04:18:13Z","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":"By adding a weak magnetic field to a spherically symmetric fluid configuration that caricatures a stalled shock in the post-bounce supernova environment, we explore the capacity of the stationary accretion shock instability (SASI) to generate magnetic fields. The SASI develops upon perturbation of the initial condition, and the ensuing flow generates--{\\em in the absence of rotation}--dynamically significant magnetic fields ($\\sim 10^{15}$ G) on a time scale that is relevant for the explosion mechanism of core-collapse supernovae. We describe our model, present some recent results, and discuss","authors_text":"A. Mezzacappa, C. Y. Cardall, E. Endeve, R. D. Budiardja","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T23:07:12Z","title":"Magnetic field generation by the stationary accretion shock instability"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0806.3104","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":"sha256:61942fee13f8ff324b56a6210b3a53e0a67e6a39ff84b2135161ca2109916f1a","target":"record","created_at":"2026-05-18T04:18:13Z","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":"784e1a1772353fe830dd4f55b8407bd67e3043510909e7f26ac1673a69a19b2d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-06-18T23:07:12Z","title_canon_sha256":"7686a54d54df2e66f4d622e3e00c9fb3d87d92dff9382ffb56054c6da8d14d67"},"schema_version":"1.0","source":{"id":"0806.3104","kind":"arxiv","version":1}},"canonical_sha256":"7f8b1b6fa50a66729563c2c1c5c9336806c63967ec594396ad3e72fcda346373","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f8b1b6fa50a66729563c2c1c5c9336806c63967ec594396ad3e72fcda346373","first_computed_at":"2026-05-18T04:18:13.436664Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:18:13.436664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QFr4eof8ZXOKHGV6ki6ld6H7IgVkJybsv6cI6EWY+8+pIOrwEH/93dVz7pVIOfXhvUpHJNQMh4xo/S/XuRb2Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:18:13.437151Z","signed_message":"canonical_sha256_bytes"},"source_id":"0806.3104","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:61942fee13f8ff324b56a6210b3a53e0a67e6a39ff84b2135161ca2109916f1a","sha256:35d578c9db1bdb5f96dd6e71d258e1e3d46d60d4ce8ba91ed8cb973b50853a3c"],"state_sha256":"5525f08f57e7b985f288c46b96f5a13bf25746974f4faeca2b4cb96a331dce89"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0xw5M8JMZ1zyVQe8oo430JxJ3mxNwTT3V52K69BwecRTt2/m+uqbSUa9QCGbAEhFkm8hC7fCkzE4I+BPbPn5Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T12:04:57.099778Z","bundle_sha256":"58cd54d637c41ce2ec997f44d14fc51e4ff6a713b4077f7a50e2a1ea1e420534"}}