{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:SNBRNVPM2VFUDUS4MEOAMCIFVF","short_pith_number":"pith:SNBRNVPM","canonical_record":{"source":{"id":"2606.18107","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-16T16:09:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"8d7eac6db00c7ebc865cd0e90fa170e929ec32f8fcb8d6e89149e382ec86a223","abstract_canon_sha256":"0d5ad22efddf6e3e1015674d89a0d1d3f53d54d58d5efbff90419fcaf11840ed"},"schema_version":"1.0"},"canonical_sha256":"934316d5ecd54b41d25c611c060905a94d3b4fc595adcc509cb1a2469a22c8dc","source":{"kind":"arxiv","id":"2606.18107","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18107","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18107v1","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18107","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"pith_short_12","alias_value":"SNBRNVPM2VFU","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"pith_short_16","alias_value":"SNBRNVPM2VFUDUS4","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"pith_short_8","alias_value":"SNBRNVPM","created_at":"2026-06-19T16:10:48Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:SNBRNVPM2VFUDUS4MEOAMCIFVF","target":"record","payload":{"canonical_record":{"source":{"id":"2606.18107","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-16T16:09:05Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"8d7eac6db00c7ebc865cd0e90fa170e929ec32f8fcb8d6e89149e382ec86a223","abstract_canon_sha256":"0d5ad22efddf6e3e1015674d89a0d1d3f53d54d58d5efbff90419fcaf11840ed"},"schema_version":"1.0"},"canonical_sha256":"934316d5ecd54b41d25c611c060905a94d3b4fc595adcc509cb1a2469a22c8dc","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-19T16:10:48.619283Z","signature_b64":"sqpxmS7S0OOEmMI2yUOUPVUU00mHJT0b5sLZeoPqxK2IjrNheJLTGZaNOqHMCGU2IFpiFa+XnNN1EsBO3SWNDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"934316d5ecd54b41d25c611c060905a94d3b4fc595adcc509cb1a2469a22c8dc","last_reissued_at":"2026-06-19T16:10:48.618935Z","signature_status":"signed_v1","first_computed_at":"2026-06-19T16:10:48.618935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.18107","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":"2026-06-19T16:10:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ifBqu0qq1i/NydmEpLsFWkNJjKe6/H5QnpOtB2H3uu2sRMMwnWbu4P56hRoHyUH1wLpFhWuz+lmeNN/4WUr/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T00:54:55.697834Z"},"content_sha256":"d4f87f81b4ce4c2985b4e2061ae11ed28c694cb6ccdcab199def041bb9fe5a88","schema_version":"1.0","event_id":"sha256:d4f87f81b4ce4c2985b4e2061ae11ed28c694cb6ccdcab199def041bb9fe5a88"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:SNBRNVPM2VFUDUS4MEOAMCIFVF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Polarized emission of orbiting hot-spots near Sagittarius A*: effects of electromagnetic interaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Abylaikhan Tlemissov, Arman Tursunov, Maciek Wielgus","submitted_at":"2026-06-16T16:09:05Z","abstract_excerpt":"We investigate the polarimetric signatures of orbiting hot-spots around a Schwarzschild black hole in the presence of an external magnetic field, accounting for the electromagnetic interaction between the charged emitter and the field. Using a general-relativistic model that incorporates synchrotron emission and ray-tracing of light propagation, we analyze how the electromagnetic interaction parameter modifies the observed polarization patterns, with particular emphasis on the behavior of the electric vector position angle (EVPA) and the time-evolving polarization loops in the $Q$-$U$ plane. A"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18107","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.18107/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-06-19T16:10:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2aaNNz1vy+9UN002T91MNDeaTv30kwqiM2f/o66Q+Vr+QcaE4EAJ4qB3IUBIfk5HKUlBqCauZKyKht7T25O3Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T00:54:55.698237Z"},"content_sha256":"62582ea5136a3835cd839ed76f802b6ca506e802c06675a739c59b23f1314e9a","schema_version":"1.0","event_id":"sha256:62582ea5136a3835cd839ed76f802b6ca506e802c06675a739c59b23f1314e9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF/bundle.json","state_url":"https://pith.science/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF/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":"2026-06-30T00:54:55Z","links":{"resolver":"https://pith.science/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF","bundle":"https://pith.science/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF/bundle.json","state":"https://pith.science/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SNBRNVPM2VFUDUS4MEOAMCIFVF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:SNBRNVPM2VFUDUS4MEOAMCIFVF","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":"0d5ad22efddf6e3e1015674d89a0d1d3f53d54d58d5efbff90419fcaf11840ed","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-16T16:09:05Z","title_canon_sha256":"8d7eac6db00c7ebc865cd0e90fa170e929ec32f8fcb8d6e89149e382ec86a223"},"schema_version":"1.0","source":{"id":"2606.18107","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.18107","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"arxiv_version","alias_value":"2606.18107v1","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.18107","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"pith_short_12","alias_value":"SNBRNVPM2VFU","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"pith_short_16","alias_value":"SNBRNVPM2VFUDUS4","created_at":"2026-06-19T16:10:48Z"},{"alias_kind":"pith_short_8","alias_value":"SNBRNVPM","created_at":"2026-06-19T16:10:48Z"}],"graph_snapshots":[{"event_id":"sha256:62582ea5136a3835cd839ed76f802b6ca506e802c06675a739c59b23f1314e9a","target":"graph","created_at":"2026-06-19T16:10:48Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.18107/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the polarimetric signatures of orbiting hot-spots around a Schwarzschild black hole in the presence of an external magnetic field, accounting for the electromagnetic interaction between the charged emitter and the field. Using a general-relativistic model that incorporates synchrotron emission and ray-tracing of light propagation, we analyze how the electromagnetic interaction parameter modifies the observed polarization patterns, with particular emphasis on the behavior of the electric vector position angle (EVPA) and the time-evolving polarization loops in the $Q$-$U$ plane. A","authors_text":"Abylaikhan Tlemissov, Arman Tursunov, Maciek Wielgus","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-16T16:09:05Z","title":"Polarized emission of orbiting hot-spots near Sagittarius A*: effects of electromagnetic interaction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.18107","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:d4f87f81b4ce4c2985b4e2061ae11ed28c694cb6ccdcab199def041bb9fe5a88","target":"record","created_at":"2026-06-19T16:10:48Z","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":"0d5ad22efddf6e3e1015674d89a0d1d3f53d54d58d5efbff90419fcaf11840ed","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-16T16:09:05Z","title_canon_sha256":"8d7eac6db00c7ebc865cd0e90fa170e929ec32f8fcb8d6e89149e382ec86a223"},"schema_version":"1.0","source":{"id":"2606.18107","kind":"arxiv","version":1}},"canonical_sha256":"934316d5ecd54b41d25c611c060905a94d3b4fc595adcc509cb1a2469a22c8dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"934316d5ecd54b41d25c611c060905a94d3b4fc595adcc509cb1a2469a22c8dc","first_computed_at":"2026-06-19T16:10:48.618935Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:10:48.618935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sqpxmS7S0OOEmMI2yUOUPVUU00mHJT0b5sLZeoPqxK2IjrNheJLTGZaNOqHMCGU2IFpiFa+XnNN1EsBO3SWNDw==","signature_status":"signed_v1","signed_at":"2026-06-19T16:10:48.619283Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.18107","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4f87f81b4ce4c2985b4e2061ae11ed28c694cb6ccdcab199def041bb9fe5a88","sha256:62582ea5136a3835cd839ed76f802b6ca506e802c06675a739c59b23f1314e9a"],"state_sha256":"1120b5c95681ecfb6b7ba2ecbdf0fcad0c489f043e8e1b00094ba3dd6053c92d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcC60KaC+Y6EBVeYGr98S/ELN6f8CmVAqbFuRLemIG/PFsDnL6gdli+NeIsbtTAoUL5LMMKbaLdl4BvT51TPAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T00:54:55.700452Z","bundle_sha256":"4cbe9d61760488c7c3292db2cd22c650dbf5fe9cba81b873046dfb6f6bba9221"}}