{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:B54RF27EDAVUDHVALZ2NAQMVIU","short_pith_number":"pith:B54RF27E","canonical_record":{"source":{"id":"1808.04584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-14T08:43:14Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"d66d496f0b6cccc4c9fd02632179c8e50a188eb85dd03a07bc61cf5d744c5cb7","abstract_canon_sha256":"6311449988967a87f98a4e4acfa177a467cac56e0e033b7ce2a62ac3475318ae"},"schema_version":"1.0"},"canonical_sha256":"0f7912ebe4182b419ea05e74d041954514c2ee1be4af8c319b9402f278918ff2","source":{"kind":"arxiv","id":"1808.04584","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04584","created_at":"2026-05-18T00:07:56Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04584v1","created_at":"2026-05-18T00:07:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04584","created_at":"2026-05-18T00:07:56Z"},{"alias_kind":"pith_short_12","alias_value":"B54RF27EDAVU","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"B54RF27EDAVUDHVA","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"B54RF27E","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:B54RF27EDAVUDHVALZ2NAQMVIU","target":"record","payload":{"canonical_record":{"source":{"id":"1808.04584","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-14T08:43:14Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"d66d496f0b6cccc4c9fd02632179c8e50a188eb85dd03a07bc61cf5d744c5cb7","abstract_canon_sha256":"6311449988967a87f98a4e4acfa177a467cac56e0e033b7ce2a62ac3475318ae"},"schema_version":"1.0"},"canonical_sha256":"0f7912ebe4182b419ea05e74d041954514c2ee1be4af8c319b9402f278918ff2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:07:56.345154Z","signature_b64":"KrBwgT43iPwUmT6+VHXwNv/FHDOk6GMOix6NxzQVtRshSvT3FDl9Vq8JBKMrqqC/awLdpcQ9LnRJCS0CJmwxDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f7912ebe4182b419ea05e74d041954514c2ee1be4af8c319b9402f278918ff2","last_reissued_at":"2026-05-18T00:07:56.344642Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:07:56.344642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1808.04584","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":"2026-05-18T00:07:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UzdcrxwWb5FMuHvT6OQX+fDnueVZGmSy0FQweJsOf1CEz1iY0WvBN5uz8J3HaEC8uTeG5EAOBECAbapfnvJGCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:59:25.130005Z"},"content_sha256":"16d4a04cb91e0a64cd6a816ec04fe18c7cda2aa3a55bad02f84c4744588a1589","schema_version":"1.0","event_id":"sha256:16d4a04cb91e0a64cd6a816ec04fe18c7cda2aa3a55bad02f84c4744588a1589"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:B54RF27EDAVUDHVALZ2NAQMVIU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the possible mechanism of radio emission of polars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. G. Zhilkin, D. V. Bisikalo, E. P. Kurbatov","submitted_at":"2018-08-14T08:43:14Z","abstract_excerpt":"We suggest a mechanism for generation of radio emission from polars. It is based on the cyclotron radiation of thermal electrons at the background of fluctuating magnetic field. The source of fluctuations is Alfv\\'{e}n wave turbulence. Expressions for the radiation spectrum and degree of polarization are obtained. By the example of the polar AM~Her, the fluxes of radio emission from the accretion stream are calculated. Within the framework of proposed emission model, with realistic plasma characteristics, it is possible to reproduce observed radiation fluxes in the VLA bands."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04584","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":"2026-05-18T00:07:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uyBKMsRCCAap76mw7D3lyRrudcZ6rySs7ByC6UGbw8jkPmSfJlf9ykC83kFD1VV0ztKzASAFQXL3tEe+nXQVAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T15:59:25.130679Z"},"content_sha256":"df24631bfe33c4124dbfb5f5460a5bb6a5093d48f933d1c5f394a8781bb3ddb1","schema_version":"1.0","event_id":"sha256:df24631bfe33c4124dbfb5f5460a5bb6a5093d48f933d1c5f394a8781bb3ddb1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B54RF27EDAVUDHVALZ2NAQMVIU/bundle.json","state_url":"https://pith.science/pith/B54RF27EDAVUDHVALZ2NAQMVIU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B54RF27EDAVUDHVALZ2NAQMVIU/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":"2026-06-06T15:59:25Z","links":{"resolver":"https://pith.science/pith/B54RF27EDAVUDHVALZ2NAQMVIU","bundle":"https://pith.science/pith/B54RF27EDAVUDHVALZ2NAQMVIU/bundle.json","state":"https://pith.science/pith/B54RF27EDAVUDHVALZ2NAQMVIU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B54RF27EDAVUDHVALZ2NAQMVIU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:B54RF27EDAVUDHVALZ2NAQMVIU","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":"6311449988967a87f98a4e4acfa177a467cac56e0e033b7ce2a62ac3475318ae","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-14T08:43:14Z","title_canon_sha256":"d66d496f0b6cccc4c9fd02632179c8e50a188eb85dd03a07bc61cf5d744c5cb7"},"schema_version":"1.0","source":{"id":"1808.04584","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1808.04584","created_at":"2026-05-18T00:07:56Z"},{"alias_kind":"arxiv_version","alias_value":"1808.04584v1","created_at":"2026-05-18T00:07:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.04584","created_at":"2026-05-18T00:07:56Z"},{"alias_kind":"pith_short_12","alias_value":"B54RF27EDAVU","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"B54RF27EDAVUDHVA","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"B54RF27E","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:df24631bfe33c4124dbfb5f5460a5bb6a5093d48f933d1c5f394a8781bb3ddb1","target":"graph","created_at":"2026-05-18T00:07:56Z","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 suggest a mechanism for generation of radio emission from polars. It is based on the cyclotron radiation of thermal electrons at the background of fluctuating magnetic field. The source of fluctuations is Alfv\\'{e}n wave turbulence. Expressions for the radiation spectrum and degree of polarization are obtained. By the example of the polar AM~Her, the fluxes of radio emission from the accretion stream are calculated. Within the framework of proposed emission model, with realistic plasma characteristics, it is possible to reproduce observed radiation fluxes in the VLA bands.","authors_text":"A. G. Zhilkin, D. V. Bisikalo, E. P. Kurbatov","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-14T08:43:14Z","title":"On the possible mechanism of radio emission of polars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.04584","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":"sha256:16d4a04cb91e0a64cd6a816ec04fe18c7cda2aa3a55bad02f84c4744588a1589","target":"record","created_at":"2026-05-18T00:07:56Z","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":"6311449988967a87f98a4e4acfa177a467cac56e0e033b7ce2a62ac3475318ae","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-08-14T08:43:14Z","title_canon_sha256":"d66d496f0b6cccc4c9fd02632179c8e50a188eb85dd03a07bc61cf5d744c5cb7"},"schema_version":"1.0","source":{"id":"1808.04584","kind":"arxiv","version":1}},"canonical_sha256":"0f7912ebe4182b419ea05e74d041954514c2ee1be4af8c319b9402f278918ff2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f7912ebe4182b419ea05e74d041954514c2ee1be4af8c319b9402f278918ff2","first_computed_at":"2026-05-18T00:07:56.344642Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:07:56.344642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KrBwgT43iPwUmT6+VHXwNv/FHDOk6GMOix6NxzQVtRshSvT3FDl9Vq8JBKMrqqC/awLdpcQ9LnRJCS0CJmwxDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:07:56.345154Z","signed_message":"canonical_sha256_bytes"},"source_id":"1808.04584","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16d4a04cb91e0a64cd6a816ec04fe18c7cda2aa3a55bad02f84c4744588a1589","sha256:df24631bfe33c4124dbfb5f5460a5bb6a5093d48f933d1c5f394a8781bb3ddb1"],"state_sha256":"f35646fce19fbb8daf4b58023d997b1c5223d95ac1313a79cd41ea294e4bafe9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eIh6UYVy0OMXTXXC1QkBnKCMnRzQssx9LXUcnoCpufehZP4NdzGX1Mfm5gNBO/aDLLUH8EMhuk7MgkfALdbDDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T15:59:25.134972Z","bundle_sha256":"2bba98e503fedd62feb9151dda03c1a8e1a8778dd2d6e50befa85db6e30c2dad"}}