{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:J6JIR7BKADBJBFUTRGZDHL4ZNK","short_pith_number":"pith:J6JIR7BK","canonical_record":{"source":{"id":"1504.07036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-27T11:48:35Z","cross_cats_sorted":[],"title_canon_sha256":"23351c334c27ccdefc87176e1c84942fa67a2f6ce5dc918cc1a1b4a7aa62c815","abstract_canon_sha256":"3cac24d1ebf3472db06cde811709c00505d36f241e172945b080de58764e2716"},"schema_version":"1.0"},"canonical_sha256":"4f9288fc2a00c290969389b233af996a98c819cf24ae408b957f5c4d67ea9a09","source":{"kind":"arxiv","id":"1504.07036","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07036","created_at":"2026-05-18T02:17:43Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07036v1","created_at":"2026-05-18T02:17:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07036","created_at":"2026-05-18T02:17:43Z"},{"alias_kind":"pith_short_12","alias_value":"J6JIR7BKADBJ","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"J6JIR7BKADBJBFUT","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"J6JIR7BK","created_at":"2026-05-18T12:29:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:J6JIR7BKADBJBFUTRGZDHL4ZNK","target":"record","payload":{"canonical_record":{"source":{"id":"1504.07036","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-27T11:48:35Z","cross_cats_sorted":[],"title_canon_sha256":"23351c334c27ccdefc87176e1c84942fa67a2f6ce5dc918cc1a1b4a7aa62c815","abstract_canon_sha256":"3cac24d1ebf3472db06cde811709c00505d36f241e172945b080de58764e2716"},"schema_version":"1.0"},"canonical_sha256":"4f9288fc2a00c290969389b233af996a98c819cf24ae408b957f5c4d67ea9a09","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:43.843831Z","signature_b64":"j9bSNVLScVj4E09bMYFy0h5jp1MyTHrM+Fbo12X8zl4+edPL4vU90e/Ngoie+xegEKOll0iIZHOzqK7Y+AcpCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4f9288fc2a00c290969389b233af996a98c819cf24ae408b957f5c4d67ea9a09","last_reissued_at":"2026-05-18T02:17:43.843457Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:43.843457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1504.07036","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":"2026-05-18T02:17:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hvwWSimq9N+3VQPN5Q45DoeO8SZNNd0634l4V1iOX37jlUlsnkKzZvd2fLBN8Qopij25VcEizVKyp79BtUOCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:30:15.913892Z"},"content_sha256":"98d602530496b9746a8113e287e223d7d2567bd113fa475d2af6f47f47beaf99","schema_version":"1.0","event_id":"sha256:98d602530496b9746a8113e287e223d7d2567bd113fa475d2af6f47f47beaf99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:J6JIR7BKADBJBFUTRGZDHL4ZNK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Resistive magnetohydrodynamic simulations of the ideal tearing mode","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Emanuele Papini, Fulvia Pucci, Luca Del Zanna, Marco Velli, Simone Landi","submitted_at":"2015-04-27T11:48:35Z","abstract_excerpt":"We study the linear and nonlinear evolution of the tearing instability on thin current sheets by means of two-dimensional numerical simulations, within the framework of compressible, resistive magnetohydrodynamics. In particular we analyze the behavior of current sheets whose inverse aspect ratio scales with the Lundquist number $S$ as $S^{-1/3}$. This scaling has been recently recognized to yield the threshold separating fast, ideal reconnection, with an evolution and growth which are independent of $S$ provided this is high enough, as it should be natural having the ideal case as a limit for"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07036","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":"2026-05-18T02:17:43Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TOKaPXQJKBMj7pdN2w4HmhPbQR0TRUb+xTsaP36rAAViCNo2MIVFAj+4GTvQpJlarQVOTufxFwOtFUW/Rg1+Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T08:30:15.914245Z"},"content_sha256":"38f1a7621a27ef9e5556eef4cdf3839037a4a04f699c5aa0beb9599e99f8c1db","schema_version":"1.0","event_id":"sha256:38f1a7621a27ef9e5556eef4cdf3839037a4a04f699c5aa0beb9599e99f8c1db"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK/bundle.json","state_url":"https://pith.science/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK/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":"2026-05-27T08:30:15Z","links":{"resolver":"https://pith.science/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK","bundle":"https://pith.science/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK/bundle.json","state":"https://pith.science/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/J6JIR7BKADBJBFUTRGZDHL4ZNK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:J6JIR7BKADBJBFUTRGZDHL4ZNK","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":"3cac24d1ebf3472db06cde811709c00505d36f241e172945b080de58764e2716","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-27T11:48:35Z","title_canon_sha256":"23351c334c27ccdefc87176e1c84942fa67a2f6ce5dc918cc1a1b4a7aa62c815"},"schema_version":"1.0","source":{"id":"1504.07036","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1504.07036","created_at":"2026-05-18T02:17:43Z"},{"alias_kind":"arxiv_version","alias_value":"1504.07036v1","created_at":"2026-05-18T02:17:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1504.07036","created_at":"2026-05-18T02:17:43Z"},{"alias_kind":"pith_short_12","alias_value":"J6JIR7BKADBJ","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_16","alias_value":"J6JIR7BKADBJBFUT","created_at":"2026-05-18T12:29:27Z"},{"alias_kind":"pith_short_8","alias_value":"J6JIR7BK","created_at":"2026-05-18T12:29:27Z"}],"graph_snapshots":[{"event_id":"sha256:38f1a7621a27ef9e5556eef4cdf3839037a4a04f699c5aa0beb9599e99f8c1db","target":"graph","created_at":"2026-05-18T02:17:43Z","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 the linear and nonlinear evolution of the tearing instability on thin current sheets by means of two-dimensional numerical simulations, within the framework of compressible, resistive magnetohydrodynamics. In particular we analyze the behavior of current sheets whose inverse aspect ratio scales with the Lundquist number $S$ as $S^{-1/3}$. This scaling has been recently recognized to yield the threshold separating fast, ideal reconnection, with an evolution and growth which are independent of $S$ provided this is high enough, as it should be natural having the ideal case as a limit for","authors_text":"Emanuele Papini, Fulvia Pucci, Luca Del Zanna, Marco Velli, Simone Landi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-27T11:48:35Z","title":"Resistive magnetohydrodynamic simulations of the ideal tearing mode"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1504.07036","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":"sha256:98d602530496b9746a8113e287e223d7d2567bd113fa475d2af6f47f47beaf99","target":"record","created_at":"2026-05-18T02:17:43Z","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":"3cac24d1ebf3472db06cde811709c00505d36f241e172945b080de58764e2716","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-04-27T11:48:35Z","title_canon_sha256":"23351c334c27ccdefc87176e1c84942fa67a2f6ce5dc918cc1a1b4a7aa62c815"},"schema_version":"1.0","source":{"id":"1504.07036","kind":"arxiv","version":1}},"canonical_sha256":"4f9288fc2a00c290969389b233af996a98c819cf24ae408b957f5c4d67ea9a09","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4f9288fc2a00c290969389b233af996a98c819cf24ae408b957f5c4d67ea9a09","first_computed_at":"2026-05-18T02:17:43.843457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:17:43.843457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"j9bSNVLScVj4E09bMYFy0h5jp1MyTHrM+Fbo12X8zl4+edPL4vU90e/Ngoie+xegEKOll0iIZHOzqK7Y+AcpCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:17:43.843831Z","signed_message":"canonical_sha256_bytes"},"source_id":"1504.07036","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:98d602530496b9746a8113e287e223d7d2567bd113fa475d2af6f47f47beaf99","sha256:38f1a7621a27ef9e5556eef4cdf3839037a4a04f699c5aa0beb9599e99f8c1db"],"state_sha256":"c580c5f6dc27247e0e56310202a28a84f0ec28a8f114ed88fd009667e41b2670"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fzPLXkcYG6MmBHVmyz66CLPocVNPC1Wu19Zl3VLZkjzBDyAy4fWqAtIlDm+AGehDkndz7ThRvxIiPV0vQKZmBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T08:30:15.916385Z","bundle_sha256":"e3ed0b1d1d71d1e62d101cd03867793c2b4d7b9c056cb0572c9b6f9c625875d8"}}