{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:LPM6SAFSGDU2LFITQWJMOOXZWU","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":"91ed0f223f550bf9e4bc3fe93a7fb4aa9656e82364508b390763152e2ddeca75","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.class-ph","submitted_at":"2012-12-02T05:03:51Z","title_canon_sha256":"8e27604dee59c6317ca18db8df57f23158afc72504bbbfa4f5b03f4db40318e1"},"schema_version":"1.0","source":{"id":"1212.0748","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1212.0748","created_at":"2026-05-18T03:32:47Z"},{"alias_kind":"arxiv_version","alias_value":"1212.0748v2","created_at":"2026-05-18T03:32:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1212.0748","created_at":"2026-05-18T03:32:47Z"},{"alias_kind":"pith_short_12","alias_value":"LPM6SAFSGDU2","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_16","alias_value":"LPM6SAFSGDU2LFIT","created_at":"2026-05-18T12:27:14Z"},{"alias_kind":"pith_short_8","alias_value":"LPM6SAFS","created_at":"2026-05-18T12:27:14Z"}],"graph_snapshots":[{"event_id":"sha256:70fb532e35ada6f93d7dde4b506c18050d981adec075f8455f558d152d380a65","target":"graph","created_at":"2026-05-18T03:32:47Z","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 present and analyze a gedanken experiment and show that the assumption that an antenna operating at a single frequency can transmit more than two independent information channels to the far field violates the Second Law of Thermodynamics. Transmission of a large number of channels, each associated with an angular momentum \"twisted wave\" mode, to the far field in free space is therefore not possible.","authors_text":"Laszlo B. Kish, Robert D. Nevels","cross_cats":["cs.IT","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.class-ph","submitted_at":"2012-12-02T05:03:51Z","title":"Twisted Radio Waves and Twisted Thermodynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1212.0748","kind":"arxiv","version":2},"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:cfc881b162f62dad75a7ba05f7373fd58b1f99c9ab0541931e45ef6d91b2f3da","target":"record","created_at":"2026-05-18T03:32:47Z","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":"91ed0f223f550bf9e4bc3fe93a7fb4aa9656e82364508b390763152e2ddeca75","cross_cats_sorted":["cs.IT","math.IT"],"license":"http://creativecommons.org/licenses/publicdomain/","primary_cat":"physics.class-ph","submitted_at":"2012-12-02T05:03:51Z","title_canon_sha256":"8e27604dee59c6317ca18db8df57f23158afc72504bbbfa4f5b03f4db40318e1"},"schema_version":"1.0","source":{"id":"1212.0748","kind":"arxiv","version":2}},"canonical_sha256":"5bd9e900b230e9a595138592c73af9b516586839a753c3791a1e92888e32b575","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bd9e900b230e9a595138592c73af9b516586839a753c3791a1e92888e32b575","first_computed_at":"2026-05-18T03:32:47.188814Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:32:47.188814Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zh+rYYv8dWwqjxarNScNI2jOkJRuh+HmAmALTjIDeP8O7R1jnfFt378LKoUIF1c2ADzVLVAGsAkjsy0t74PaCA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:32:47.189596Z","signed_message":"canonical_sha256_bytes"},"source_id":"1212.0748","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cfc881b162f62dad75a7ba05f7373fd58b1f99c9ab0541931e45ef6d91b2f3da","sha256:70fb532e35ada6f93d7dde4b506c18050d981adec075f8455f558d152d380a65"],"state_sha256":"68ecc82384eab7052fef33cd9fed6eda97fdc7161cdf0547c105424c6bfeff1d"}