{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:FSZJT5FWYBXM2W2A4ZJ3VGUXHD","short_pith_number":"pith:FSZJT5FW","canonical_record":{"source":{"id":"1710.07172","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-10-19T15:03:33Z","cross_cats_sorted":[],"title_canon_sha256":"8317bbb46ba5e5b356d55fce293ab02e2928777b30387c56338f4bc6186b5b0d","abstract_canon_sha256":"892d2e31ace5dd4aef9dd9277f08c313f9a4e87b51c483dec8511d62631d5995"},"schema_version":"1.0"},"canonical_sha256":"2cb299f4b6c06ecd5b40e653ba9a9738c83be7c3fb8964e95b3f027614b25f5b","source":{"kind":"arxiv","id":"1710.07172","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.07172","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"1710.07172v3","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.07172","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"FSZJT5FWYBXM","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FSZJT5FWYBXM2W2A","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FSZJT5FW","created_at":"2026-05-18T12:31:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:FSZJT5FWYBXM2W2A4ZJ3VGUXHD","target":"record","payload":{"canonical_record":{"source":{"id":"1710.07172","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-10-19T15:03:33Z","cross_cats_sorted":[],"title_canon_sha256":"8317bbb46ba5e5b356d55fce293ab02e2928777b30387c56338f4bc6186b5b0d","abstract_canon_sha256":"892d2e31ace5dd4aef9dd9277f08c313f9a4e87b51c483dec8511d62631d5995"},"schema_version":"1.0"},"canonical_sha256":"2cb299f4b6c06ecd5b40e653ba9a9738c83be7c3fb8964e95b3f027614b25f5b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:19:26.096619Z","signature_b64":"whWfn9ockwcfh4hl2W99z5R/XUDiDW9hkmuwoNjUYW1YUMLBV0o2T2qq3z5X/NI+4HpPlhoZpfCiqtwhacTlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2cb299f4b6c06ecd5b40e653ba9a9738c83be7c3fb8964e95b3f027614b25f5b","last_reissued_at":"2026-05-18T00:19:26.095930Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:19:26.095930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.07172","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:19:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"maHX8QX+q4oGb5/t9SLaal2+sMhAFdDg0r1WdkqLGy+rEHIqBvgIte5HlCemcF/l2eVnSIvRSYq32TjIw5KUCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:23:56.143118Z"},"content_sha256":"5c6bcb313ffc887cad1793cb6ef78b5c0fcfa278d6eee36be3fc47972f00ff0e","schema_version":"1.0","event_id":"sha256:5c6bcb313ffc887cad1793cb6ef78b5c0fcfa278d6eee36be3fc47972f00ff0e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:FSZJT5FWYBXM2W2A4ZJ3VGUXHD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Shadows of Bonnor black dihole by chaotic lensing","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Jiliang Jing, Mingzhi Wang, Songbai Chen","submitted_at":"2017-10-19T15:03:33Z","abstract_excerpt":"We have studied numerically the shadows of Bonnor black dihole through the technique of backward ray-tracing. The presence of magnetic dipole yields non-integrable photon motion, which affects sharply the shadow of the compact object. Our results show that there exists a critical value for the shadow. As the magnetic dipole parameter is less than the critical value, the shadow is a black disk, but as the magnetic dipole parameter is larger than the critical one, the shadow becomes a concave disk with eyebrows possessing a self-similar fractal structure. These behavior are very similar to those"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.07172","kind":"arxiv","version":3},"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":"2026-05-18T00:19:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LdYWH8oF9HnM6wz/4jD8Nhqz1Ao/3wRzFB/PE4YMT3a8/QvnB9nOUhSpT7s940gJS8q/+km/RCiV/2bq06DTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T14:23:56.143517Z"},"content_sha256":"6f45d02c05b768d947c683add136b02fa72ae77a91d11c92e0012823a8d05e3e","schema_version":"1.0","event_id":"sha256:6f45d02c05b768d947c683add136b02fa72ae77a91d11c92e0012823a8d05e3e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD/bundle.json","state_url":"https://pith.science/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD/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":"2026-05-25T14:23:56Z","links":{"resolver":"https://pith.science/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD","bundle":"https://pith.science/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD/bundle.json","state":"https://pith.science/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FSZJT5FWYBXM2W2A4ZJ3VGUXHD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:FSZJT5FWYBXM2W2A4ZJ3VGUXHD","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":"892d2e31ace5dd4aef9dd9277f08c313f9a4e87b51c483dec8511d62631d5995","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-10-19T15:03:33Z","title_canon_sha256":"8317bbb46ba5e5b356d55fce293ab02e2928777b30387c56338f4bc6186b5b0d"},"schema_version":"1.0","source":{"id":"1710.07172","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.07172","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"arxiv_version","alias_value":"1710.07172v3","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.07172","created_at":"2026-05-18T00:19:26Z"},{"alias_kind":"pith_short_12","alias_value":"FSZJT5FWYBXM","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_16","alias_value":"FSZJT5FWYBXM2W2A","created_at":"2026-05-18T12:31:15Z"},{"alias_kind":"pith_short_8","alias_value":"FSZJT5FW","created_at":"2026-05-18T12:31:15Z"}],"graph_snapshots":[{"event_id":"sha256:6f45d02c05b768d947c683add136b02fa72ae77a91d11c92e0012823a8d05e3e","target":"graph","created_at":"2026-05-18T00:19:26Z","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 have studied numerically the shadows of Bonnor black dihole through the technique of backward ray-tracing. The presence of magnetic dipole yields non-integrable photon motion, which affects sharply the shadow of the compact object. Our results show that there exists a critical value for the shadow. As the magnetic dipole parameter is less than the critical value, the shadow is a black disk, but as the magnetic dipole parameter is larger than the critical one, the shadow becomes a concave disk with eyebrows possessing a self-similar fractal structure. These behavior are very similar to those","authors_text":"Jiliang Jing, Mingzhi Wang, Songbai Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-10-19T15:03:33Z","title":"Shadows of Bonnor black dihole by chaotic lensing"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.07172","kind":"arxiv","version":3},"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":"sha256:5c6bcb313ffc887cad1793cb6ef78b5c0fcfa278d6eee36be3fc47972f00ff0e","target":"record","created_at":"2026-05-18T00:19:26Z","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":"892d2e31ace5dd4aef9dd9277f08c313f9a4e87b51c483dec8511d62631d5995","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-10-19T15:03:33Z","title_canon_sha256":"8317bbb46ba5e5b356d55fce293ab02e2928777b30387c56338f4bc6186b5b0d"},"schema_version":"1.0","source":{"id":"1710.07172","kind":"arxiv","version":3}},"canonical_sha256":"2cb299f4b6c06ecd5b40e653ba9a9738c83be7c3fb8964e95b3f027614b25f5b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cb299f4b6c06ecd5b40e653ba9a9738c83be7c3fb8964e95b3f027614b25f5b","first_computed_at":"2026-05-18T00:19:26.095930Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:19:26.095930Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"whWfn9ockwcfh4hl2W99z5R/XUDiDW9hkmuwoNjUYW1YUMLBV0o2T2qq3z5X/NI+4HpPlhoZpfCiqtwhacTlAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:19:26.096619Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.07172","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5c6bcb313ffc887cad1793cb6ef78b5c0fcfa278d6eee36be3fc47972f00ff0e","sha256:6f45d02c05b768d947c683add136b02fa72ae77a91d11c92e0012823a8d05e3e"],"state_sha256":"5b1534dedb04dec18f9d1658ca195cb246084028b70fd6054b181819d034d679"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FhJr3EZlJf0DGb4DKuVgWdd+Tf8+Wc6afS/WIai7sos3ZQcLbqMvELBbwKE7zV8+anTrNbAOK+nzFgxxyh/kAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T14:23:56.146329Z","bundle_sha256":"bf5bdf89d337692a5b826ef251e0cd151f596aa9f78f209784fa2feef61e4d5a"}}