{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:OXEMP3P6JFH5HI5GZYOWZWOBZT","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":"f8894868956ad01caae83f40e27948b68bbe562bad3971fa2134b47a36c5505c","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-01T18:00:54Z","title_canon_sha256":"ff98883485782e92a810693b200bd9725b902b2078fe8b94b66104219e26a127"},"schema_version":"1.0","source":{"id":"2006.01161","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.01161","created_at":"2026-07-05T02:08:08Z"},{"alias_kind":"arxiv_version","alias_value":"2006.01161v3","created_at":"2026-07-05T02:08:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.01161","created_at":"2026-07-05T02:08:08Z"},{"alias_kind":"pith_short_12","alias_value":"OXEMP3P6JFH5","created_at":"2026-07-05T02:08:08Z"},{"alias_kind":"pith_short_16","alias_value":"OXEMP3P6JFH5HI5G","created_at":"2026-07-05T02:08:08Z"},{"alias_kind":"pith_short_8","alias_value":"OXEMP3P6","created_at":"2026-07-05T02:08:08Z"}],"graph_snapshots":[{"event_id":"sha256:bd106c87a65a8d6e83a7c992996ad5078b54abc20c2bbcc52c537b8d0b45ea89","target":"graph","created_at":"2026-07-05T02:08:08Z","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/2006.01161/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In the presence of magnetic fields, gravitational waves are converted into photons and vice versa. We demonstrate that this conversion leads to a distortion of the cosmic microwave background (CMB), which can serve as a detector for MHz to GHz gravitational wave sources active before reionization. The measurements of the radio telescope EDGES can be cast as a bound on the gravitational wave amplitude, $h_c < 10^{-21} (10^{-12})$ at 78 MHz, for the strongest (weakest) cosmic magnetic fields allowed by current astrophysical and cosmological constraints. Similarly, the results of ARCADE 2 imply $","authors_text":"Camilo Garcia-Cely, Valerie Domcke","cross_cats":["gr-qc","hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-01T18:00:54Z","title":"Potential of radio telescopes as high-frequency gravitational wave detectors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.01161","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":"sha256:36b7113ea57e3c592405f07a213a87778fa3b04b78b7b805b569053e09450cd8","target":"record","created_at":"2026-07-05T02:08:08Z","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":"f8894868956ad01caae83f40e27948b68bbe562bad3971fa2134b47a36c5505c","cross_cats_sorted":["gr-qc","hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2020-06-01T18:00:54Z","title_canon_sha256":"ff98883485782e92a810693b200bd9725b902b2078fe8b94b66104219e26a127"},"schema_version":"1.0","source":{"id":"2006.01161","kind":"arxiv","version":3}},"canonical_sha256":"75c8c7edfe494fd3a3a6ce1d6cd9c1ccdeb0597476ddc33b4629cab8344d406a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75c8c7edfe494fd3a3a6ce1d6cd9c1ccdeb0597476ddc33b4629cab8344d406a","first_computed_at":"2026-07-05T02:08:08.288853Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:08:08.288853Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GJSik3wKDeXVNPbg/Ur0U0nuT9e34q9Wlxt2oM9yZwhDaU2Zqvji569aaUqkrgZUCoEt5f5gSBGOq3eIwEZqDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:08:08.289363Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.01161","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:36b7113ea57e3c592405f07a213a87778fa3b04b78b7b805b569053e09450cd8","sha256:bd106c87a65a8d6e83a7c992996ad5078b54abc20c2bbcc52c537b8d0b45ea89"],"state_sha256":"b2e326a934acc5d32b0df2e859e8db8d974b31b036d3e1fb299ad3cbb84c3e74"}