{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TUS25VFLD7ZHXBNCZWME4NCHRJ","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":"db02639d8e316edebd48a1c853fe869969c12d89e103e903334f67aee1540643","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2019-04-14T15:08:27Z","title_canon_sha256":"80b28590ba20cb54ea44d412fdb2b342aa1d0558b13f802dd410a855f53a7554"},"schema_version":"1.0","source":{"id":"1904.06704","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.06704","created_at":"2026-07-05T00:37:06Z"},{"alias_kind":"arxiv_version","alias_value":"1904.06704v3","created_at":"2026-07-05T00:37:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.06704","created_at":"2026-07-05T00:37:06Z"},{"alias_kind":"pith_short_12","alias_value":"TUS25VFLD7ZH","created_at":"2026-07-05T00:37:06Z"},{"alias_kind":"pith_short_16","alias_value":"TUS25VFLD7ZHXBNC","created_at":"2026-07-05T00:37:06Z"},{"alias_kind":"pith_short_8","alias_value":"TUS25VFL","created_at":"2026-07-05T00:37:06Z"}],"graph_snapshots":[{"event_id":"sha256:161bd49546a17969b878095f416a65cee7ed6c1f65e7770fb239c4ab2b02b4e8","target":"graph","created_at":"2026-07-05T00:37:06Z","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/1904.06704/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Transmission through reconfigurable intelligent surfaces (RISs), which control the reflection/scattering characteristics of incident waves in a deliberate manner to enhance the signal quality at the receiver, appears as a promising candidate for future wireless communication systems. In this paper, we bring the concept of RIS-assisted communications to the realm of index modulation (IM) by proposing RIS-space shift keying (RIS-SSK) and RIS-spatial modulation (RIS-SM) schemes. These two schemes are realized through not only intelligent reflection of the incoming signals to improve the reception","authors_text":"Ertugrul Basar","cross_cats":["eess.SP","math.IT"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2019-04-14T15:08:27Z","title":"Reconfigurable Intelligent Surface-Based Index Modulation: A New Beyond MIMO Paradigm for 6G"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.06704","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":"sha256:06c8a22a79d126ab327b4d3fcc25547a762acfbd045862e50950e6c9f6462175","target":"record","created_at":"2026-07-05T00:37:06Z","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":"db02639d8e316edebd48a1c853fe869969c12d89e103e903334f67aee1540643","cross_cats_sorted":["eess.SP","math.IT"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IT","submitted_at":"2019-04-14T15:08:27Z","title_canon_sha256":"80b28590ba20cb54ea44d412fdb2b342aa1d0558b13f802dd410a855f53a7554"},"schema_version":"1.0","source":{"id":"1904.06704","kind":"arxiv","version":3}},"canonical_sha256":"9d25aed4ab1ff27b85a2cd984e34478a71c190a717be5a0e6d3dbac96d8d00dc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d25aed4ab1ff27b85a2cd984e34478a71c190a717be5a0e6d3dbac96d8d00dc","first_computed_at":"2026-07-05T00:37:06.800175Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:37:06.800175Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eltnXz22+KFbhbwY66oAnfvgo2QliU9i8l+IjP4bIC+76bDc0n9J01hOwAUd8qFBbQzybfSgOv8OXxpqhQVnAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:37:06.800663Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.06704","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:06c8a22a79d126ab327b4d3fcc25547a762acfbd045862e50950e6c9f6462175","sha256:161bd49546a17969b878095f416a65cee7ed6c1f65e7770fb239c4ab2b02b4e8"],"state_sha256":"578d9b9b9725e93060fb00a592f09615cf724e3b308652818c8407f9de77f678"}