{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:NFERTJJFMOOB66ZRRKOR2H2GI4","short_pith_number":"pith:NFERTJJF","canonical_record":{"source":{"id":"1210.2508","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-09T07:26:46Z","cross_cats_sorted":[],"title_canon_sha256":"9a1aaf9583f773b9ac742412a9a4f146f454117e2fc2ae423f873edc6605e3b4","abstract_canon_sha256":"f58016db440d22ce03ed0dd27501ef76b127849e04e1f171b722165c4b7b5b89"},"schema_version":"1.0"},"canonical_sha256":"694919a525639c1f7b318a9d1d1f46470e102c59ca6957c039b07fde956da2f7","source":{"kind":"arxiv","id":"1210.2508","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2508","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2508v2","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2508","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"pith_short_12","alias_value":"NFERTJJFMOOB","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NFERTJJFMOOB66ZR","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NFERTJJF","created_at":"2026-05-18T12:27:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:NFERTJJFMOOB66ZRRKOR2H2GI4","target":"record","payload":{"canonical_record":{"source":{"id":"1210.2508","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-09T07:26:46Z","cross_cats_sorted":[],"title_canon_sha256":"9a1aaf9583f773b9ac742412a9a4f146f454117e2fc2ae423f873edc6605e3b4","abstract_canon_sha256":"f58016db440d22ce03ed0dd27501ef76b127849e04e1f171b722165c4b7b5b89"},"schema_version":"1.0"},"canonical_sha256":"694919a525639c1f7b318a9d1d1f46470e102c59ca6957c039b07fde956da2f7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:54:04.267487Z","signature_b64":"u4j5taFhXGq7zF1KgME/kNPwKQZe54AVKzqfr/I7hchSaKpYcBefEcvuIZliIEx77j8Qk25NGwXjbxdsG5M6Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"694919a525639c1f7b318a9d1d1f46470e102c59ca6957c039b07fde956da2f7","last_reissued_at":"2026-05-18T01:54:04.267031Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:54:04.267031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.2508","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":"2026-05-18T01:54:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QyNKQ6Os9OdLsuh+nzT6ZHE87ToTRs0xD9RvCOJgJ6AVfpFjjdgymXOG2EQhzqTdYOc2De/xBiDMlZIZVBRPCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:17:12.461256Z"},"content_sha256":"424ac27c9670aa4e900603f8d5fae1084cf7875be4ee572c35272d2faaea30b0","schema_version":"1.0","event_id":"sha256:424ac27c9670aa4e900603f8d5fae1084cf7875be4ee572c35272d2faaea30b0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:NFERTJJFMOOB66ZRRKOR2H2GI4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Interdependence of Electric Discharge and The Magnetorotational Instability in Protoplanetary Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Satoshi Okuzumi, Shu-ichiro Inutsuka, Takayuki Muranushi","submitted_at":"2012-10-09T07:26:46Z","abstract_excerpt":"We study how the magnetorotational instability (MRI) in protoplanetary disks is affected by the electric discharge caused by the electric field in the resistive MHD. We have performed three-dimensional shearing box simulations with various values of plasma beta and electrical breakdown models. We find the self-sustainment of the MRI in spite of the high resistivity. The instability gives rise to the large electric field that causes the electrical breakdown, and the breakdown maintains the high ionization degree required for the instability.\n  The condition for this self-sustained MRI is set by"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2508","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":"2026-05-18T01:54:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iCPZ7nIZ24TIv274n0QrLhbQm41KJFUEtlztrAmKUkci/qxY5DtVqktkriKGPqCLIcrcTtrRcOzuNPAXkE6iCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T03:17:12.461621Z"},"content_sha256":"4b84ae249050cc45cd88ad14af2422ea6f3f4549548fb2c72af0b18ce0f83fde","schema_version":"1.0","event_id":"sha256:4b84ae249050cc45cd88ad14af2422ea6f3f4549548fb2c72af0b18ce0f83fde"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFERTJJFMOOB66ZRRKOR2H2GI4/bundle.json","state_url":"https://pith.science/pith/NFERTJJFMOOB66ZRRKOR2H2GI4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFERTJJFMOOB66ZRRKOR2H2GI4/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":"2026-05-27T03:17:12Z","links":{"resolver":"https://pith.science/pith/NFERTJJFMOOB66ZRRKOR2H2GI4","bundle":"https://pith.science/pith/NFERTJJFMOOB66ZRRKOR2H2GI4/bundle.json","state":"https://pith.science/pith/NFERTJJFMOOB66ZRRKOR2H2GI4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFERTJJFMOOB66ZRRKOR2H2GI4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:NFERTJJFMOOB66ZRRKOR2H2GI4","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":"f58016db440d22ce03ed0dd27501ef76b127849e04e1f171b722165c4b7b5b89","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-09T07:26:46Z","title_canon_sha256":"9a1aaf9583f773b9ac742412a9a4f146f454117e2fc2ae423f873edc6605e3b4"},"schema_version":"1.0","source":{"id":"1210.2508","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.2508","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"arxiv_version","alias_value":"1210.2508v2","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.2508","created_at":"2026-05-18T01:54:04Z"},{"alias_kind":"pith_short_12","alias_value":"NFERTJJFMOOB","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_16","alias_value":"NFERTJJFMOOB66ZR","created_at":"2026-05-18T12:27:16Z"},{"alias_kind":"pith_short_8","alias_value":"NFERTJJF","created_at":"2026-05-18T12:27:16Z"}],"graph_snapshots":[{"event_id":"sha256:4b84ae249050cc45cd88ad14af2422ea6f3f4549548fb2c72af0b18ce0f83fde","target":"graph","created_at":"2026-05-18T01:54:04Z","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 how the magnetorotational instability (MRI) in protoplanetary disks is affected by the electric discharge caused by the electric field in the resistive MHD. We have performed three-dimensional shearing box simulations with various values of plasma beta and electrical breakdown models. We find the self-sustainment of the MRI in spite of the high resistivity. The instability gives rise to the large electric field that causes the electrical breakdown, and the breakdown maintains the high ionization degree required for the instability.\n  The condition for this self-sustained MRI is set by","authors_text":"Satoshi Okuzumi, Shu-ichiro Inutsuka, Takayuki Muranushi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-09T07:26:46Z","title":"Interdependence of Electric Discharge and The Magnetorotational Instability in Protoplanetary Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.2508","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":"sha256:424ac27c9670aa4e900603f8d5fae1084cf7875be4ee572c35272d2faaea30b0","target":"record","created_at":"2026-05-18T01:54:04Z","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":"f58016db440d22ce03ed0dd27501ef76b127849e04e1f171b722165c4b7b5b89","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2012-10-09T07:26:46Z","title_canon_sha256":"9a1aaf9583f773b9ac742412a9a4f146f454117e2fc2ae423f873edc6605e3b4"},"schema_version":"1.0","source":{"id":"1210.2508","kind":"arxiv","version":2}},"canonical_sha256":"694919a525639c1f7b318a9d1d1f46470e102c59ca6957c039b07fde956da2f7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"694919a525639c1f7b318a9d1d1f46470e102c59ca6957c039b07fde956da2f7","first_computed_at":"2026-05-18T01:54:04.267031Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:54:04.267031Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u4j5taFhXGq7zF1KgME/kNPwKQZe54AVKzqfr/I7hchSaKpYcBefEcvuIZliIEx77j8Qk25NGwXjbxdsG5M6Bw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:54:04.267487Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.2508","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:424ac27c9670aa4e900603f8d5fae1084cf7875be4ee572c35272d2faaea30b0","sha256:4b84ae249050cc45cd88ad14af2422ea6f3f4549548fb2c72af0b18ce0f83fde"],"state_sha256":"d5f5195b7b49d06573b5660ee94dff41fb1d6f4bcfa9230e2983f34e3882c111"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P+VqwaFOkldr9i7xje0n0yXkZmKxJT0W5b9BvkULk997IAgl8ABUavnkFoeiFiVHbcW3/HZKL+Holri6pPBqCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T03:17:12.463770Z","bundle_sha256":"46e62666bc2b441dc8d38c053d7d5c9af3d887a1e8ee06f8bfd94afcbbd0fb2a"}}