{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:YVZ5SBBKBJV7WFZP6UYWISTDJM","short_pith_number":"pith:YVZ5SBBK","canonical_record":{"source":{"id":"1606.04181","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-14T00:06:54Z","cross_cats_sorted":[],"title_canon_sha256":"5fcb1a77b6123d3d919555907c08fba3756c8d59e8dd4abd8edacf96d785b287","abstract_canon_sha256":"31fe3cf3e6764b323cfd0a40bf59aa7b938b9bad5093ead55edc7738ffd9c9fb"},"schema_version":"1.0"},"canonical_sha256":"c573d9042a0a6bfb172ff531644a634b2b0e016e2ed195fd3824baafcce61343","source":{"kind":"arxiv","id":"1606.04181","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.04181","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1606.04181v1","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.04181","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"YVZ5SBBKBJV7","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YVZ5SBBKBJV7WFZP","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YVZ5SBBK","created_at":"2026-05-18T12:30:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:YVZ5SBBKBJV7WFZP6UYWISTDJM","target":"record","payload":{"canonical_record":{"source":{"id":"1606.04181","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-14T00:06:54Z","cross_cats_sorted":[],"title_canon_sha256":"5fcb1a77b6123d3d919555907c08fba3756c8d59e8dd4abd8edacf96d785b287","abstract_canon_sha256":"31fe3cf3e6764b323cfd0a40bf59aa7b938b9bad5093ead55edc7738ffd9c9fb"},"schema_version":"1.0"},"canonical_sha256":"c573d9042a0a6bfb172ff531644a634b2b0e016e2ed195fd3824baafcce61343","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:18.620510Z","signature_b64":"5SYHgie6oFbU18QiGQa5dziXEyvt7bSY2OsFEk5jTW9p+AAFcPDnKy02vW1y0UQg7HLtZj0lWgqcn1xEZbsHBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c573d9042a0a6bfb172ff531644a634b2b0e016e2ed195fd3824baafcce61343","last_reissued_at":"2026-05-18T01:04:18.619897Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:18.619897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.04181","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":"2026-05-18T01:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+bxFYzrIGyMdTy1sHzwocfhXli++r7IOhoRAH2vZDpZuP1EyqehK5CvxgSpm4tUQL7dWfifcRW1zcMFD7sqnDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:45:03.612902Z"},"content_sha256":"8b6f50c650d27b8486c7cf30504c9948d5ea243cb1c8542e2e255986aa3bcee2","schema_version":"1.0","event_id":"sha256:8b6f50c650d27b8486c7cf30504c9948d5ea243cb1c8542e2e255986aa3bcee2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:YVZ5SBBKBJV7WFZP6UYWISTDJM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Full-Wave Feasibility Study of Anti-Radar Diagnostic of Magnetic Field Based on O-X Mode Conversion and Oblique Reflectometry Imaging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"F.A. Volpe, O. Meneghini","submitted_at":"2016-06-14T00:06:54Z","abstract_excerpt":"An innovative millimeter wave diagnostic is proposed to measure the local magnetic field and edge current as a function of the minor radius in the tokamak pedestal region. The idea is to identify the direction of minimum reflectivity at the O-mode cutoff layer. Correspondingly, the transmissivity due to O-X mode conversion is maximum. That direction, and the angular map of reflectivity around it, contain information on the magnetic field vector B at the cutoff layer. Probing the plasma with different wave frequencies provides the radial profile of B. Full-wave finite-element simulations are pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.04181","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":"2026-05-18T01:04:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VAI7+N8iBHEWFkwpuUT7CmVyuBxrzM7b81teRCoHCVZHsE3n7ktkIzlmykpxmCG4re5g4K/PXm9N+pYhw/U5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T22:45:03.613626Z"},"content_sha256":"6c1e0ebddcb61175c595742b68674ebec52f492d44bdbfba191141bb0115b6e1","schema_version":"1.0","event_id":"sha256:6c1e0ebddcb61175c595742b68674ebec52f492d44bdbfba191141bb0115b6e1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM/bundle.json","state_url":"https://pith.science/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM/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":"2026-06-07T22:45:03Z","links":{"resolver":"https://pith.science/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM","bundle":"https://pith.science/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM/bundle.json","state":"https://pith.science/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YVZ5SBBKBJV7WFZP6UYWISTDJM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:YVZ5SBBKBJV7WFZP6UYWISTDJM","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":"31fe3cf3e6764b323cfd0a40bf59aa7b938b9bad5093ead55edc7738ffd9c9fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-14T00:06:54Z","title_canon_sha256":"5fcb1a77b6123d3d919555907c08fba3756c8d59e8dd4abd8edacf96d785b287"},"schema_version":"1.0","source":{"id":"1606.04181","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.04181","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"arxiv_version","alias_value":"1606.04181v1","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.04181","created_at":"2026-05-18T01:04:18Z"},{"alias_kind":"pith_short_12","alias_value":"YVZ5SBBKBJV7","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_16","alias_value":"YVZ5SBBKBJV7WFZP","created_at":"2026-05-18T12:30:53Z"},{"alias_kind":"pith_short_8","alias_value":"YVZ5SBBK","created_at":"2026-05-18T12:30:53Z"}],"graph_snapshots":[{"event_id":"sha256:6c1e0ebddcb61175c595742b68674ebec52f492d44bdbfba191141bb0115b6e1","target":"graph","created_at":"2026-05-18T01:04:18Z","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":"An innovative millimeter wave diagnostic is proposed to measure the local magnetic field and edge current as a function of the minor radius in the tokamak pedestal region. The idea is to identify the direction of minimum reflectivity at the O-mode cutoff layer. Correspondingly, the transmissivity due to O-X mode conversion is maximum. That direction, and the angular map of reflectivity around it, contain information on the magnetic field vector B at the cutoff layer. Probing the plasma with different wave frequencies provides the radial profile of B. Full-wave finite-element simulations are pr","authors_text":"F.A. Volpe, O. Meneghini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-14T00:06:54Z","title":"Full-Wave Feasibility Study of Anti-Radar Diagnostic of Magnetic Field Based on O-X Mode Conversion and Oblique Reflectometry Imaging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.04181","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":"sha256:8b6f50c650d27b8486c7cf30504c9948d5ea243cb1c8542e2e255986aa3bcee2","target":"record","created_at":"2026-05-18T01:04:18Z","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":"31fe3cf3e6764b323cfd0a40bf59aa7b938b9bad5093ead55edc7738ffd9c9fb","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2016-06-14T00:06:54Z","title_canon_sha256":"5fcb1a77b6123d3d919555907c08fba3756c8d59e8dd4abd8edacf96d785b287"},"schema_version":"1.0","source":{"id":"1606.04181","kind":"arxiv","version":1}},"canonical_sha256":"c573d9042a0a6bfb172ff531644a634b2b0e016e2ed195fd3824baafcce61343","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c573d9042a0a6bfb172ff531644a634b2b0e016e2ed195fd3824baafcce61343","first_computed_at":"2026-05-18T01:04:18.619897Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:18.619897Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5SYHgie6oFbU18QiGQa5dziXEyvt7bSY2OsFEk5jTW9p+AAFcPDnKy02vW1y0UQg7HLtZj0lWgqcn1xEZbsHBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:18.620510Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.04181","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8b6f50c650d27b8486c7cf30504c9948d5ea243cb1c8542e2e255986aa3bcee2","sha256:6c1e0ebddcb61175c595742b68674ebec52f492d44bdbfba191141bb0115b6e1"],"state_sha256":"41bc509bc26192d37e944a8ec0d64d9b17876920f7492905d16b64045cde0199"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gM1yDoyxtbKNcu9M3w0VWOxd0KkJdaib/uuqYwsvwflitkpfBuf37CaSjxhtYi3Qh4ZZavThxxEy0iaD1ieIDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T22:45:03.617401Z","bundle_sha256":"d794313808cb1d3a2d4322f4aa3239f0dd508f29c3be6e63af4e66fb62e19be9"}}