{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:BAAWMCDMCFFBAWXKQHNCEEIAVR","short_pith_number":"pith:BAAWMCDM","canonical_record":{"source":{"id":"0904.1038","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-07T00:58:15Z","cross_cats_sorted":[],"title_canon_sha256":"349f1b1464a96325d41f9634f2a1961f7df4f596a02cd070d968727b3784212e","abstract_canon_sha256":"a56baee507d0efede39c91c1a495939d92159c4978becf7004434a506959240c"},"schema_version":"1.0"},"canonical_sha256":"080166086c114a105aea81da221100ac628d28453f4ef0a218d9a30463c03ba6","source":{"kind":"arxiv","id":"0904.1038","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1038","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1038v1","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1038","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"pith_short_12","alias_value":"BAAWMCDMCFFB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BAAWMCDMCFFBAWXK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BAAWMCDM","created_at":"2026-05-18T12:25:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:BAAWMCDMCFFBAWXKQHNCEEIAVR","target":"record","payload":{"canonical_record":{"source":{"id":"0904.1038","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-07T00:58:15Z","cross_cats_sorted":[],"title_canon_sha256":"349f1b1464a96325d41f9634f2a1961f7df4f596a02cd070d968727b3784212e","abstract_canon_sha256":"a56baee507d0efede39c91c1a495939d92159c4978becf7004434a506959240c"},"schema_version":"1.0"},"canonical_sha256":"080166086c114a105aea81da221100ac628d28453f4ef0a218d9a30463c03ba6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:14:07.137859Z","signature_b64":"P/0SnC7iD8j88+swvS5xFvv/SY3tO9LJw/iQoVUfXAOQUeNfGjhu0YRWIfdzm99mjTbEvOzkx8BFRzg3dvoPBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"080166086c114a105aea81da221100ac628d28453f4ef0a218d9a30463c03ba6","last_reissued_at":"2026-05-18T02:14:07.137226Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:14:07.137226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0904.1038","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":"2026-05-18T02:14:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"JlHQr0nvJdxq7WW3AE6fSdZ7JWut0KWOVczHhjIvR76QJacrxIhowlKb4sr16SsvkN2EszkOOrJn1CTlGKVRCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T01:29:13.493844Z"},"content_sha256":"0a8058348045fa482c4a425f4f3b6ab61b0bcca54e1cb948ad4309496a9eaaa1","schema_version":"1.0","event_id":"sha256:0a8058348045fa482c4a425f4f3b6ab61b0bcca54e1cb948ad4309496a9eaaa1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:BAAWMCDMCFFBAWXKQHNCEEIAVR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Saturated magnetic field amplification at supernova shocks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Don Melrose, Qinghuan Luo","submitted_at":"2009-04-07T00:58:15Z","abstract_excerpt":"Cosmic-ray streaming instabilities at supernova shocks are discussed in the quasilinear diffusion formalism which takes into account the feedback effect of wave growth on the cosmic ray streaming motion. In particular, the nonresonant instability that leads to magnetic field amplification in the short wavelength regime is considered. The linear growth rate is calculated using kinetic theory for a streaming distribution. We show that the nonresonant instability is actually driven by a compensating current in the background plasma. The nonresonant instability can develop into a nonlinear regime "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1038","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":"2026-05-18T02:14:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dr+UpZePo4miIQ/2Y293zAUZjeLdZ2hP+wjQhjKdM6B6qtDLThBAgbUSGf+Gbi5BBrh4EWP9e/kFYA6oojnwBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-20T01:29:13.494196Z"},"content_sha256":"4c8df9111365473d9618334422ebe74754470a0145c2cb229b22f45be3e9f917","schema_version":"1.0","event_id":"sha256:4c8df9111365473d9618334422ebe74754470a0145c2cb229b22f45be3e9f917"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR/bundle.json","state_url":"https://pith.science/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR/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":"2026-06-20T01:29:13Z","links":{"resolver":"https://pith.science/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR","bundle":"https://pith.science/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR/bundle.json","state":"https://pith.science/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BAAWMCDMCFFBAWXKQHNCEEIAVR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:BAAWMCDMCFFBAWXKQHNCEEIAVR","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":"a56baee507d0efede39c91c1a495939d92159c4978becf7004434a506959240c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-07T00:58:15Z","title_canon_sha256":"349f1b1464a96325d41f9634f2a1961f7df4f596a02cd070d968727b3784212e"},"schema_version":"1.0","source":{"id":"0904.1038","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0904.1038","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"arxiv_version","alias_value":"0904.1038v1","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0904.1038","created_at":"2026-05-18T02:14:07Z"},{"alias_kind":"pith_short_12","alias_value":"BAAWMCDMCFFB","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_16","alias_value":"BAAWMCDMCFFBAWXK","created_at":"2026-05-18T12:25:58Z"},{"alias_kind":"pith_short_8","alias_value":"BAAWMCDM","created_at":"2026-05-18T12:25:58Z"}],"graph_snapshots":[{"event_id":"sha256:4c8df9111365473d9618334422ebe74754470a0145c2cb229b22f45be3e9f917","target":"graph","created_at":"2026-05-18T02:14:07Z","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":"Cosmic-ray streaming instabilities at supernova shocks are discussed in the quasilinear diffusion formalism which takes into account the feedback effect of wave growth on the cosmic ray streaming motion. In particular, the nonresonant instability that leads to magnetic field amplification in the short wavelength regime is considered. The linear growth rate is calculated using kinetic theory for a streaming distribution. We show that the nonresonant instability is actually driven by a compensating current in the background plasma. The nonresonant instability can develop into a nonlinear regime ","authors_text":"Don Melrose, Qinghuan Luo","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-07T00:58:15Z","title":"Saturated magnetic field amplification at supernova shocks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0904.1038","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":"sha256:0a8058348045fa482c4a425f4f3b6ab61b0bcca54e1cb948ad4309496a9eaaa1","target":"record","created_at":"2026-05-18T02:14:07Z","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":"a56baee507d0efede39c91c1a495939d92159c4978becf7004434a506959240c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-04-07T00:58:15Z","title_canon_sha256":"349f1b1464a96325d41f9634f2a1961f7df4f596a02cd070d968727b3784212e"},"schema_version":"1.0","source":{"id":"0904.1038","kind":"arxiv","version":1}},"canonical_sha256":"080166086c114a105aea81da221100ac628d28453f4ef0a218d9a30463c03ba6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"080166086c114a105aea81da221100ac628d28453f4ef0a218d9a30463c03ba6","first_computed_at":"2026-05-18T02:14:07.137226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:14:07.137226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"P/0SnC7iD8j88+swvS5xFvv/SY3tO9LJw/iQoVUfXAOQUeNfGjhu0YRWIfdzm99mjTbEvOzkx8BFRzg3dvoPBA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:14:07.137859Z","signed_message":"canonical_sha256_bytes"},"source_id":"0904.1038","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0a8058348045fa482c4a425f4f3b6ab61b0bcca54e1cb948ad4309496a9eaaa1","sha256:4c8df9111365473d9618334422ebe74754470a0145c2cb229b22f45be3e9f917"],"state_sha256":"0d80ffd6c851d3e25df7217cc4a70ff442e1de86c7727e61581b457fa37f6762"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MAOC++Ec+p2cI48QSC9gGnvzqcRG2C19gEQbbYURvqBU4GJGGEU96odkQggp5eSF0BVu4wXtjovMwA/yzmD+CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-20T01:29:13.496152Z","bundle_sha256":"e0fe522c0a091074d97e2b99bcc11785a1d6d6be846f437cdaf2ca74da87ada7"}}