{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:WBOBUXNVBXLGV66FG7H5U5MKMT","short_pith_number":"pith:WBOBUXNV","canonical_record":{"source":{"id":"2502.05711","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-02-08T22:09:20Z","cross_cats_sorted":[],"title_canon_sha256":"952038d5d86dd111c05dce1b0c8bb8e8f46e80c341e7b4cc3b3ba39d45b6bc08","abstract_canon_sha256":"e62256afd2914797175b549e1c3abb943ea22940e0abc82506030d5001a072f9"},"schema_version":"1.0"},"canonical_sha256":"b05c1a5db50dd66afbc537cfda758a64f285c5fabc8cc0bda0859cd9063fb5e0","source":{"kind":"arxiv","id":"2502.05711","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.05711","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"arxiv_version","alias_value":"2502.05711v1","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.05711","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"pith_short_12","alias_value":"WBOBUXNVBXLG","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"pith_short_16","alias_value":"WBOBUXNVBXLGV66F","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"pith_short_8","alias_value":"WBOBUXNV","created_at":"2026-07-05T10:11:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:WBOBUXNVBXLGV66FG7H5U5MKMT","target":"record","payload":{"canonical_record":{"source":{"id":"2502.05711","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-02-08T22:09:20Z","cross_cats_sorted":[],"title_canon_sha256":"952038d5d86dd111c05dce1b0c8bb8e8f46e80c341e7b4cc3b3ba39d45b6bc08","abstract_canon_sha256":"e62256afd2914797175b549e1c3abb943ea22940e0abc82506030d5001a072f9"},"schema_version":"1.0"},"canonical_sha256":"b05c1a5db50dd66afbc537cfda758a64f285c5fabc8cc0bda0859cd9063fb5e0","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:11:42.381942Z","signature_b64":"vRKoFt7r8m9wNOxv/Kt8FuFtvLlP6Flp3TVnFPX+7Ll/sDCghx/O3Yqi8SmG3AKDG+LsiL6sSpP+XuHjQloBDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b05c1a5db50dd66afbc537cfda758a64f285c5fabc8cc0bda0859cd9063fb5e0","last_reissued_at":"2026-07-05T10:11:42.381563Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:11:42.381563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.05711","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":"2026-07-05T10:11:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"htf/xVuGBCWPcy3NA0873FUb8JTKDujtAE5FH483KJD6PIyVqSljmGIDLXQHR3DJqnCIqRflM0giCuB7GOAjAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T15:00:12.172338Z"},"content_sha256":"90f0292ea24a8ce8daf15086614173dc5b7adc35ee25327b2afef8f22ae4f83b","schema_version":"1.0","event_id":"sha256:90f0292ea24a8ce8daf15086614173dc5b7adc35ee25327b2afef8f22ae4f83b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:WBOBUXNVBXLGV66FG7H5U5MKMT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Reconfigurable Intelligent Surface-Enabled Physical-Layer Network Coding for Higher Order M-QAM Signals","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Ehsan Atefat Doost, Felipe Gil-Casti\\~neira, Firooz B. Saghezchi, Jinwara Surattanagul, John Vardakas, Jonathan Rodriguez, Maria Papaioannou, Pablo Fondo-Ferreiro","submitted_at":"2025-02-08T22:09:20Z","abstract_excerpt":"Physical-Layer Network Coding (PNC) is an effective technique to improve the throughput and latency in wireless networks. However, there are two major challenges for PNC, especially when using higher order modulations: 1) phase synchronization and power control at the paired User Equipments (UEs); and 2) the ambiguity removal of the PNC mapping at the relay node. To address these challenges, in this paper, we apply power control at transmitting UEs and exploit Reconfigurable Intelligent Surfaces (RISs) to synchronize the phase of the transmitted signals and ensure that they arrive at the relay"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.05711","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2502.05711/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T10:11:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Um/iPAWHnDW8hwQJ0agZ2WK7m4ZutWtfn6IU+FzClJ4+DBLOVXyLwlQxQ6E5JwJSWxY/u9zzHds+P/WiKqSdAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T15:00:12.177865Z"},"content_sha256":"64bd8ed8f49966011b60f18120038345dbb189c4ba32b2680acfd24da98e5960","schema_version":"1.0","event_id":"sha256:64bd8ed8f49966011b60f18120038345dbb189c4ba32b2680acfd24da98e5960"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WBOBUXNVBXLGV66FG7H5U5MKMT/bundle.json","state_url":"https://pith.science/pith/WBOBUXNVBXLGV66FG7H5U5MKMT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WBOBUXNVBXLGV66FG7H5U5MKMT/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":"2026-08-20T15:00:12Z","links":{"resolver":"https://pith.science/pith/WBOBUXNVBXLGV66FG7H5U5MKMT","bundle":"https://pith.science/pith/WBOBUXNVBXLGV66FG7H5U5MKMT/bundle.json","state":"https://pith.science/pith/WBOBUXNVBXLGV66FG7H5U5MKMT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WBOBUXNVBXLGV66FG7H5U5MKMT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:WBOBUXNVBXLGV66FG7H5U5MKMT","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":"e62256afd2914797175b549e1c3abb943ea22940e0abc82506030d5001a072f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-02-08T22:09:20Z","title_canon_sha256":"952038d5d86dd111c05dce1b0c8bb8e8f46e80c341e7b4cc3b3ba39d45b6bc08"},"schema_version":"1.0","source":{"id":"2502.05711","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.05711","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"arxiv_version","alias_value":"2502.05711v1","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.05711","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"pith_short_12","alias_value":"WBOBUXNVBXLG","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"pith_short_16","alias_value":"WBOBUXNVBXLGV66F","created_at":"2026-07-05T10:11:42Z"},{"alias_kind":"pith_short_8","alias_value":"WBOBUXNV","created_at":"2026-07-05T10:11:42Z"}],"graph_snapshots":[{"event_id":"sha256:64bd8ed8f49966011b60f18120038345dbb189c4ba32b2680acfd24da98e5960","target":"graph","created_at":"2026-07-05T10:11:42Z","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/2502.05711/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Physical-Layer Network Coding (PNC) is an effective technique to improve the throughput and latency in wireless networks. However, there are two major challenges for PNC, especially when using higher order modulations: 1) phase synchronization and power control at the paired User Equipments (UEs); and 2) the ambiguity removal of the PNC mapping at the relay node. To address these challenges, in this paper, we apply power control at transmitting UEs and exploit Reconfigurable Intelligent Surfaces (RISs) to synchronize the phase of the transmitted signals and ensure that they arrive at the relay","authors_text":"Ehsan Atefat Doost, Felipe Gil-Casti\\~neira, Firooz B. Saghezchi, Jinwara Surattanagul, John Vardakas, Jonathan Rodriguez, Maria Papaioannou, Pablo Fondo-Ferreiro","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-02-08T22:09:20Z","title":"Reconfigurable Intelligent Surface-Enabled Physical-Layer Network Coding for Higher Order M-QAM Signals"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.05711","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":"sha256:90f0292ea24a8ce8daf15086614173dc5b7adc35ee25327b2afef8f22ae4f83b","target":"record","created_at":"2026-07-05T10:11:42Z","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":"e62256afd2914797175b549e1c3abb943ea22940e0abc82506030d5001a072f9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-02-08T22:09:20Z","title_canon_sha256":"952038d5d86dd111c05dce1b0c8bb8e8f46e80c341e7b4cc3b3ba39d45b6bc08"},"schema_version":"1.0","source":{"id":"2502.05711","kind":"arxiv","version":1}},"canonical_sha256":"b05c1a5db50dd66afbc537cfda758a64f285c5fabc8cc0bda0859cd9063fb5e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b05c1a5db50dd66afbc537cfda758a64f285c5fabc8cc0bda0859cd9063fb5e0","first_computed_at":"2026-07-05T10:11:42.381563Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:11:42.381563Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vRKoFt7r8m9wNOxv/Kt8FuFtvLlP6Flp3TVnFPX+7Ll/sDCghx/O3Yqi8SmG3AKDG+LsiL6sSpP+XuHjQloBDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:11:42.381942Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.05711","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:90f0292ea24a8ce8daf15086614173dc5b7adc35ee25327b2afef8f22ae4f83b","sha256:64bd8ed8f49966011b60f18120038345dbb189c4ba32b2680acfd24da98e5960"],"state_sha256":"ee801c0c29e80bea5a3e8f1271f0881366d75f1a8944b102d25925f3008c591a"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dvsS0BzXYKgIjV4H64sSV7EwrhGOCEW8S1kmEKPbHkOI4A1bidBqw04odk7uSg+c3mg70iMHbCXjotlet53WAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T15:00:12.187244Z","bundle_sha256":"cbb752dc6bbc3a43b07f6bd7f3c1d2ca8edebdc10567d8a6026a00023fedf446"}}