{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:JLH6WY6PHPRFJQ6VJFYOZGITDU","short_pith_number":"pith:JLH6WY6P","canonical_record":{"source":{"id":"1310.3274","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-10-11T20:00:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"cd33ee1fd88de573763e7d0c9aa68dc3ea6c73baf10e1b9c113b940286fb8aed","abstract_canon_sha256":"7106ae47ab63d2f96863f6db41a05dac4f4f3c83a8cfedc736bfa1e1fd5552ad"},"schema_version":"1.0"},"canonical_sha256":"4acfeb63cf3be254c3d54970ec99131d300f2b7047fbd137f52155402f210650","source":{"kind":"arxiv","id":"1310.3274","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3274","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3274v2","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3274","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"pith_short_12","alias_value":"JLH6WY6PHPRF","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JLH6WY6PHPRFJQ6V","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JLH6WY6P","created_at":"2026-05-18T12:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:JLH6WY6PHPRFJQ6VJFYOZGITDU","target":"record","payload":{"canonical_record":{"source":{"id":"1310.3274","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-10-11T20:00:02Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"cd33ee1fd88de573763e7d0c9aa68dc3ea6c73baf10e1b9c113b940286fb8aed","abstract_canon_sha256":"7106ae47ab63d2f96863f6db41a05dac4f4f3c83a8cfedc736bfa1e1fd5552ad"},"schema_version":"1.0"},"canonical_sha256":"4acfeb63cf3be254c3d54970ec99131d300f2b7047fbd137f52155402f210650","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:47:06.314397Z","signature_b64":"go9MmWV/p6EcZJ+y3u6ISnSvbWVSpBh7jpivYMuWrOW59zj8nUq2bYAxPQhZ2F4bSVB97rKIjT9fZr2cr6DRDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4acfeb63cf3be254c3d54970ec99131d300f2b7047fbd137f52155402f210650","last_reissued_at":"2026-05-18T01:47:06.313929Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:47:06.313929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.3274","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":"2026-05-18T01:47:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"koWEbexDPvddJEZ67ETbydi9/afEJBMXrXTWmlgNVx44VMHwqv+/mDVjyFortLVpG1BwtAXLZ/xr7a+MSIX5Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:30:14.875892Z"},"content_sha256":"a815d3facaa7ed200c88f805f54b731d9abc7d1d0c1b2f5afbd34ef71faae981","schema_version":"1.0","event_id":"sha256:a815d3facaa7ed200c88f805f54b731d9abc7d1d0c1b2f5afbd34ef71faae981"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:JLH6WY6PHPRFJQ6VJFYOZGITDU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A new scheme for matching general relativistic ideal magnetohydrodynamics to its force-free limit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Stuart L. Shapiro, Vasileios Paschalidis","submitted_at":"2013-10-11T20:00:02Z","abstract_excerpt":"We present a new computational method for smoothly matching general relativistic ideal magnetohydrodynamics (MHD) to its force-free limit. The method is based on a flux-conservative formalism for MHD and its force-free limit, and a vector potential formulation for the induction equation to maintain the zero divergence constraint for the magnetic field. The force-free formulation we adopt evolves the magnetic field and the Poynting vector, instead of the magnetic and electric fields. We show that our force-free code passes a robust suite of tests, performed both in 1D flat spacetime and in 3D b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3274","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":"2026-05-18T01:47:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HF5YW7ectGH0Y83rG1yjs5Edz+IKXNLTzg3UzeCCtvWPGLNaYBdnFShzwheX608hOnZVUwfSkQGhI2ZL1REmAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T03:30:14.876583Z"},"content_sha256":"9fbb14fba284cd4b4087ca51bcf6c5c18d231a3b412b26bda4b81f07f37ebaa0","schema_version":"1.0","event_id":"sha256:9fbb14fba284cd4b4087ca51bcf6c5c18d231a3b412b26bda4b81f07f37ebaa0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU/bundle.json","state_url":"https://pith.science/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU/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":"2026-06-11T03:30:14Z","links":{"resolver":"https://pith.science/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU","bundle":"https://pith.science/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU/bundle.json","state":"https://pith.science/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JLH6WY6PHPRFJQ6VJFYOZGITDU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:JLH6WY6PHPRFJQ6VJFYOZGITDU","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":"7106ae47ab63d2f96863f6db41a05dac4f4f3c83a8cfedc736bfa1e1fd5552ad","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-10-11T20:00:02Z","title_canon_sha256":"cd33ee1fd88de573763e7d0c9aa68dc3ea6c73baf10e1b9c113b940286fb8aed"},"schema_version":"1.0","source":{"id":"1310.3274","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.3274","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"arxiv_version","alias_value":"1310.3274v2","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.3274","created_at":"2026-05-18T01:47:06Z"},{"alias_kind":"pith_short_12","alias_value":"JLH6WY6PHPRF","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"JLH6WY6PHPRFJQ6V","created_at":"2026-05-18T12:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"JLH6WY6P","created_at":"2026-05-18T12:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:9fbb14fba284cd4b4087ca51bcf6c5c18d231a3b412b26bda4b81f07f37ebaa0","target":"graph","created_at":"2026-05-18T01:47:06Z","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 present a new computational method for smoothly matching general relativistic ideal magnetohydrodynamics (MHD) to its force-free limit. The method is based on a flux-conservative formalism for MHD and its force-free limit, and a vector potential formulation for the induction equation to maintain the zero divergence constraint for the magnetic field. The force-free formulation we adopt evolves the magnetic field and the Poynting vector, instead of the magnetic and electric fields. We show that our force-free code passes a robust suite of tests, performed both in 1D flat spacetime and in 3D b","authors_text":"Stuart L. Shapiro, Vasileios Paschalidis","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-10-11T20:00:02Z","title":"A new scheme for matching general relativistic ideal magnetohydrodynamics to its force-free limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.3274","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:a815d3facaa7ed200c88f805f54b731d9abc7d1d0c1b2f5afbd34ef71faae981","target":"record","created_at":"2026-05-18T01:47:06Z","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":"7106ae47ab63d2f96863f6db41a05dac4f4f3c83a8cfedc736bfa1e1fd5552ad","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2013-10-11T20:00:02Z","title_canon_sha256":"cd33ee1fd88de573763e7d0c9aa68dc3ea6c73baf10e1b9c113b940286fb8aed"},"schema_version":"1.0","source":{"id":"1310.3274","kind":"arxiv","version":2}},"canonical_sha256":"4acfeb63cf3be254c3d54970ec99131d300f2b7047fbd137f52155402f210650","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4acfeb63cf3be254c3d54970ec99131d300f2b7047fbd137f52155402f210650","first_computed_at":"2026-05-18T01:47:06.313929Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:47:06.313929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"go9MmWV/p6EcZJ+y3u6ISnSvbWVSpBh7jpivYMuWrOW59zj8nUq2bYAxPQhZ2F4bSVB97rKIjT9fZr2cr6DRDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:47:06.314397Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.3274","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a815d3facaa7ed200c88f805f54b731d9abc7d1d0c1b2f5afbd34ef71faae981","sha256:9fbb14fba284cd4b4087ca51bcf6c5c18d231a3b412b26bda4b81f07f37ebaa0"],"state_sha256":"6501455a34327cb90543d573170cdd7ea7b7d4beccbd55e6af3cc8c2d2ecb55b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ppvjGsgDuQb7psplLHndDw0To5lHIv7dX+h+Q9Wf9YFrKcz0zgybhcDG347FHe1z8mkUELmr1mU5FIFLPZSrDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T03:30:14.880615Z","bundle_sha256":"e0cd4b684bff1bcedd33225db412d0578e830b2adcc09ddbacb1b7ad5a5b6d2f"}}