{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2007:BPVVIYCSSB3LO3TL7VQA7XMV24","short_pith_number":"pith:BPVVIYCS","canonical_record":{"source":{"id":"0711.2887","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-11-19T10:18:04Z","cross_cats_sorted":[],"title_canon_sha256":"82522e2e575e2c0ce8f4296959635e8fc0b00d333539457e9bbe56281e1722f2","abstract_canon_sha256":"d2ea7148eb2fe8579b95ef8cb807150d54952d9e10da8cf382b900ddade8389a"},"schema_version":"1.0"},"canonical_sha256":"0beb5460529076b76e6bfd600fdd95d714059e29762d02822e0fd9f4da2ebe5d","source":{"kind":"arxiv","id":"0711.2887","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0711.2887","created_at":"2026-05-18T02:16:09Z"},{"alias_kind":"arxiv_version","alias_value":"0711.2887v1","created_at":"2026-05-18T02:16:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0711.2887","created_at":"2026-05-18T02:16:09Z"},{"alias_kind":"pith_short_12","alias_value":"BPVVIYCSSB3L","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"BPVVIYCSSB3LO3TL","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"BPVVIYCS","created_at":"2026-05-18T12:25:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2007:BPVVIYCSSB3LO3TL7VQA7XMV24","target":"record","payload":{"canonical_record":{"source":{"id":"0711.2887","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-11-19T10:18:04Z","cross_cats_sorted":[],"title_canon_sha256":"82522e2e575e2c0ce8f4296959635e8fc0b00d333539457e9bbe56281e1722f2","abstract_canon_sha256":"d2ea7148eb2fe8579b95ef8cb807150d54952d9e10da8cf382b900ddade8389a"},"schema_version":"1.0"},"canonical_sha256":"0beb5460529076b76e6bfd600fdd95d714059e29762d02822e0fd9f4da2ebe5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:16:09.261258Z","signature_b64":"E9hC7fN66/8ShJKWvMKEJWxzXV1SM7gBDKHO/ajGMt53VslFf5NbfSG6OeTecYuUrWDDrvxd/YhCHCq1Y3YvCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0beb5460529076b76e6bfd600fdd95d714059e29762d02822e0fd9f4da2ebe5d","last_reissued_at":"2026-05-18T02:16:09.260539Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:16:09.260539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0711.2887","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":"2026-05-18T02:16:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HZ/lmho56EfHsbUeFcK4/mq8GVKAEARfDc3PKkwiotBj/yg/U8JN3D3VvBY6+G9PBSRLpGHtACHc866EHCTEBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:50:29.386680Z"},"content_sha256":"4149b77838796e9e979cc3261c52d04bb6f5185db4578ee56f6845a205085c30","schema_version":"1.0","event_id":"sha256:4149b77838796e9e979cc3261c52d04bb6f5185db4578ee56f6845a205085c30"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2007:BPVVIYCSSB3LO3TL7VQA7XMV24","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Modelling the Global Solar Corona II: Coronal Evolution and Filament Chirality Comparison","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Harvard-Smithsonian Center for Astrophysics), A. A. van Ballegooijen (2) ((1) University of St Andrews, A. R. Yeates (1), D. H. Mackay (1)","submitted_at":"2007-11-19T10:18:04Z","abstract_excerpt":"The hemispheric pattern of solar filaments is considered using newly-developed simulations of the real photospheric and 3D coronal magnetic fields over a 6-month period, on a global scale. The magnetic field direction in the simulation is compared directly with the chirality of observed filaments, at their observed locations. In our model the coronal field evolves through a continuous sequence of nonlinear force-free equilibria, in response to the changing photospheric boundary conditions and the emergence of new magnetic flux. In total 119 magnetic bipoles with properties matching observed ac"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0711.2887","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":"2026-05-18T02:16:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"geFTAGnelMnWrx+75HM7rJcDlqyc+HO3S8eINzbPsighfbt1g6NxgxgKNTRxeAeW2Sthv1vPr+bzhWVLzgw+AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:50:29.387032Z"},"content_sha256":"37592c79af6195d3e406c9ed20a50caf510b7c268cfec43946e5e51120cebd8e","schema_version":"1.0","event_id":"sha256:37592c79af6195d3e406c9ed20a50caf510b7c268cfec43946e5e51120cebd8e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BPVVIYCSSB3LO3TL7VQA7XMV24/bundle.json","state_url":"https://pith.science/pith/BPVVIYCSSB3LO3TL7VQA7XMV24/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BPVVIYCSSB3LO3TL7VQA7XMV24/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":"2026-05-30T03:50:29Z","links":{"resolver":"https://pith.science/pith/BPVVIYCSSB3LO3TL7VQA7XMV24","bundle":"https://pith.science/pith/BPVVIYCSSB3LO3TL7VQA7XMV24/bundle.json","state":"https://pith.science/pith/BPVVIYCSSB3LO3TL7VQA7XMV24/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BPVVIYCSSB3LO3TL7VQA7XMV24/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2007:BPVVIYCSSB3LO3TL7VQA7XMV24","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":"d2ea7148eb2fe8579b95ef8cb807150d54952d9e10da8cf382b900ddade8389a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-11-19T10:18:04Z","title_canon_sha256":"82522e2e575e2c0ce8f4296959635e8fc0b00d333539457e9bbe56281e1722f2"},"schema_version":"1.0","source":{"id":"0711.2887","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0711.2887","created_at":"2026-05-18T02:16:09Z"},{"alias_kind":"arxiv_version","alias_value":"0711.2887v1","created_at":"2026-05-18T02:16:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0711.2887","created_at":"2026-05-18T02:16:09Z"},{"alias_kind":"pith_short_12","alias_value":"BPVVIYCSSB3L","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_16","alias_value":"BPVVIYCSSB3LO3TL","created_at":"2026-05-18T12:25:55Z"},{"alias_kind":"pith_short_8","alias_value":"BPVVIYCS","created_at":"2026-05-18T12:25:55Z"}],"graph_snapshots":[{"event_id":"sha256:37592c79af6195d3e406c9ed20a50caf510b7c268cfec43946e5e51120cebd8e","target":"graph","created_at":"2026-05-18T02:16:09Z","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":"The hemispheric pattern of solar filaments is considered using newly-developed simulations of the real photospheric and 3D coronal magnetic fields over a 6-month period, on a global scale. The magnetic field direction in the simulation is compared directly with the chirality of observed filaments, at their observed locations. In our model the coronal field evolves through a continuous sequence of nonlinear force-free equilibria, in response to the changing photospheric boundary conditions and the emergence of new magnetic flux. In total 119 magnetic bipoles with properties matching observed ac","authors_text":"(2) Harvard-Smithsonian Center for Astrophysics), A. A. van Ballegooijen (2) ((1) University of St Andrews, A. R. Yeates (1), D. H. Mackay (1)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2007-11-19T10:18:04Z","title":"Modelling the Global Solar Corona II: Coronal Evolution and Filament Chirality Comparison"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0711.2887","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":"sha256:4149b77838796e9e979cc3261c52d04bb6f5185db4578ee56f6845a205085c30","target":"record","created_at":"2026-05-18T02:16:09Z","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":"d2ea7148eb2fe8579b95ef8cb807150d54952d9e10da8cf382b900ddade8389a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2007-11-19T10:18:04Z","title_canon_sha256":"82522e2e575e2c0ce8f4296959635e8fc0b00d333539457e9bbe56281e1722f2"},"schema_version":"1.0","source":{"id":"0711.2887","kind":"arxiv","version":1}},"canonical_sha256":"0beb5460529076b76e6bfd600fdd95d714059e29762d02822e0fd9f4da2ebe5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0beb5460529076b76e6bfd600fdd95d714059e29762d02822e0fd9f4da2ebe5d","first_computed_at":"2026-05-18T02:16:09.260539Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:16:09.260539Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"E9hC7fN66/8ShJKWvMKEJWxzXV1SM7gBDKHO/ajGMt53VslFf5NbfSG6OeTecYuUrWDDrvxd/YhCHCq1Y3YvCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:16:09.261258Z","signed_message":"canonical_sha256_bytes"},"source_id":"0711.2887","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4149b77838796e9e979cc3261c52d04bb6f5185db4578ee56f6845a205085c30","sha256:37592c79af6195d3e406c9ed20a50caf510b7c268cfec43946e5e51120cebd8e"],"state_sha256":"979ff13fe956e0adf1954197aafac0f6e76ebec801d1b287f2208345a5737582"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NnBB0BiX84w4BStr/zbbdrLUlFIYht35ZX2rt0WgMEatCPx3Pkbx1+KNEhQPZQLkZP3KHfPgIau2JT2uqpdsDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T03:50:29.389211Z","bundle_sha256":"a5468a8267e66088e2b8f72f32b2be57ec51880c2280cbe5b53872db650418c9"}}