{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:CXUCL5OSOKBLAWENG2KDERF33S","short_pith_number":"pith:CXUCL5OS","canonical_record":{"source":{"id":"0908.2999","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-20T20:04:26Z","cross_cats_sorted":[],"title_canon_sha256":"0e22212da29a5dc10602ad675720b9dc0af8446d6a4c15bbb2e7631be4a36777","abstract_canon_sha256":"f408f7547a14d84bae15214ec4ea5b47735fbbe3c64931b734d0803471f3ec3f"},"schema_version":"1.0"},"canonical_sha256":"15e825f5d27282b0588d36943244bbdcbe06a0dacbbc66e0c1c415baecb7b43c","source":{"kind":"arxiv","id":"0908.2999","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.2999","created_at":"2026-05-18T02:12:24Z"},{"alias_kind":"arxiv_version","alias_value":"0908.2999v1","created_at":"2026-05-18T02:12:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.2999","created_at":"2026-05-18T02:12:24Z"},{"alias_kind":"pith_short_12","alias_value":"CXUCL5OSOKBL","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"CXUCL5OSOKBLAWEN","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"CXUCL5OS","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:CXUCL5OSOKBLAWENG2KDERF33S","target":"record","payload":{"canonical_record":{"source":{"id":"0908.2999","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-20T20:04:26Z","cross_cats_sorted":[],"title_canon_sha256":"0e22212da29a5dc10602ad675720b9dc0af8446d6a4c15bbb2e7631be4a36777","abstract_canon_sha256":"f408f7547a14d84bae15214ec4ea5b47735fbbe3c64931b734d0803471f3ec3f"},"schema_version":"1.0"},"canonical_sha256":"15e825f5d27282b0588d36943244bbdcbe06a0dacbbc66e0c1c415baecb7b43c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:24.591337Z","signature_b64":"+E/5U6o61GamZvEzcTTqf++Qoukds9Ih1gTA8rN2GVCTr5impilZPU2kt/ZLFQmJNfYgPFJpQkdcjSdB6MNJDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"15e825f5d27282b0588d36943244bbdcbe06a0dacbbc66e0c1c415baecb7b43c","last_reissued_at":"2026-05-18T02:12:24.590548Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:24.590548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0908.2999","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":"2026-05-18T02:12:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KBRXD65d/XwaFzQoduHmA8UwVJewbvlPGMD2mmOvxzzNjCVwEFehOOmw0XeGhmQTRyyTyXkVkn4JG0Rn95IZCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:10:07.314650Z"},"content_sha256":"679d8bcd0801a9880c800d23983cc7d7695a1d5b09b7570bcf24373e38c6541a","schema_version":"1.0","event_id":"sha256:679d8bcd0801a9880c800d23983cc7d7695a1d5b09b7570bcf24373e38c6541a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:CXUCL5OSOKBLAWENG2KDERF33S","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Signatures of Relativistic Helical Motion in the Rotation Measures of AGN Jets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Abraham Loeb, Avery E Broderick","submitted_at":"2009-08-20T20:04:26Z","abstract_excerpt":"Polarization has proved an invaluable tool for probing magnetic fields in relativistic jets. Maps of the intrinsic polarization vectors have provided the best evidence to date for uniform, toroidally dominated magnetic fields within jets. More recently, maps of the rotation measure (RM) in jets have for the first time probed the field geometry of the cool, moderately relativistic surrounding material. In most cases, clear signatures of toroidal magnetic field are detected, corresponding to gradients in RM profiles transverse to the jet. However, in many objects these profiles also display mark"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.2999","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":"2026-05-18T02:12:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W+XK3DOuubCk+JhpnhmoQjIlG7O2gqia9W9mIgHAc2+nhg3xDB3UWgwG3oyu4w+sibONFSj4nFCyMNZzKdX5AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T07:10:07.315009Z"},"content_sha256":"49c2c7474d8a7032519edaa5ab95dddfdc65102dae206ef9546ed8e073f1efa9","schema_version":"1.0","event_id":"sha256:49c2c7474d8a7032519edaa5ab95dddfdc65102dae206ef9546ed8e073f1efa9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CXUCL5OSOKBLAWENG2KDERF33S/bundle.json","state_url":"https://pith.science/pith/CXUCL5OSOKBLAWENG2KDERF33S/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CXUCL5OSOKBLAWENG2KDERF33S/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":"2026-05-30T07:10:07Z","links":{"resolver":"https://pith.science/pith/CXUCL5OSOKBLAWENG2KDERF33S","bundle":"https://pith.science/pith/CXUCL5OSOKBLAWENG2KDERF33S/bundle.json","state":"https://pith.science/pith/CXUCL5OSOKBLAWENG2KDERF33S/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CXUCL5OSOKBLAWENG2KDERF33S/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:CXUCL5OSOKBLAWENG2KDERF33S","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":"f408f7547a14d84bae15214ec4ea5b47735fbbe3c64931b734d0803471f3ec3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-20T20:04:26Z","title_canon_sha256":"0e22212da29a5dc10602ad675720b9dc0af8446d6a4c15bbb2e7631be4a36777"},"schema_version":"1.0","source":{"id":"0908.2999","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.2999","created_at":"2026-05-18T02:12:24Z"},{"alias_kind":"arxiv_version","alias_value":"0908.2999v1","created_at":"2026-05-18T02:12:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.2999","created_at":"2026-05-18T02:12:24Z"},{"alias_kind":"pith_short_12","alias_value":"CXUCL5OSOKBL","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"CXUCL5OSOKBLAWEN","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"CXUCL5OS","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:49c2c7474d8a7032519edaa5ab95dddfdc65102dae206ef9546ed8e073f1efa9","target":"graph","created_at":"2026-05-18T02:12:24Z","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":"Polarization has proved an invaluable tool for probing magnetic fields in relativistic jets. Maps of the intrinsic polarization vectors have provided the best evidence to date for uniform, toroidally dominated magnetic fields within jets. More recently, maps of the rotation measure (RM) in jets have for the first time probed the field geometry of the cool, moderately relativistic surrounding material. In most cases, clear signatures of toroidal magnetic field are detected, corresponding to gradients in RM profiles transverse to the jet. However, in many objects these profiles also display mark","authors_text":"Abraham Loeb, Avery E Broderick","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-20T20:04:26Z","title":"Signatures of Relativistic Helical Motion in the Rotation Measures of AGN Jets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.2999","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":"sha256:679d8bcd0801a9880c800d23983cc7d7695a1d5b09b7570bcf24373e38c6541a","target":"record","created_at":"2026-05-18T02:12:24Z","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":"f408f7547a14d84bae15214ec4ea5b47735fbbe3c64931b734d0803471f3ec3f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-20T20:04:26Z","title_canon_sha256":"0e22212da29a5dc10602ad675720b9dc0af8446d6a4c15bbb2e7631be4a36777"},"schema_version":"1.0","source":{"id":"0908.2999","kind":"arxiv","version":1}},"canonical_sha256":"15e825f5d27282b0588d36943244bbdcbe06a0dacbbc66e0c1c415baecb7b43c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"15e825f5d27282b0588d36943244bbdcbe06a0dacbbc66e0c1c415baecb7b43c","first_computed_at":"2026-05-18T02:12:24.590548Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:24.590548Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"+E/5U6o61GamZvEzcTTqf++Qoukds9Ih1gTA8rN2GVCTr5impilZPU2kt/ZLFQmJNfYgPFJpQkdcjSdB6MNJDw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:24.591337Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.2999","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:679d8bcd0801a9880c800d23983cc7d7695a1d5b09b7570bcf24373e38c6541a","sha256:49c2c7474d8a7032519edaa5ab95dddfdc65102dae206ef9546ed8e073f1efa9"],"state_sha256":"549893e7748e303ba0a4956d0df8102e0dbc80530ca57c67ed60bf16b593e8b3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z7WotaQBHVQvdIzLTYgBi9x0aDfRLIAvglT/C6skMFhfnvqTPnTmrpny+cKHTMB+9H+LP5hrMq5RyZV31K40Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T07:10:07.318177Z","bundle_sha256":"7799338a8655bebba78f4d7a5a2e0654b1fd25e3b84a83f4348d3402459ddf34"}}