{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:74NDXLY3CCOY7P5XU4L44U5ZQR","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":"918c72d44f3e123df1cd27ac10e8af1ef5c8e311a851b45ae5a0ce646668dcee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-01-29T13:28:02Z","title_canon_sha256":"1a732d5aea8f877a4b3f4e774046ffcbff06d43b4dc57b74ee376c39050ba5b4"},"schema_version":"1.0","source":{"id":"1901.10274","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.10274","created_at":"2026-05-17T23:55:15Z"},{"alias_kind":"arxiv_version","alias_value":"1901.10274v1","created_at":"2026-05-17T23:55:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.10274","created_at":"2026-05-17T23:55:15Z"},{"alias_kind":"pith_short_12","alias_value":"74NDXLY3CCOY","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"74NDXLY3CCOY7P5X","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"74NDXLY3","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:05e9a7191efe210485ae703c6914b3c5b12b9b4954e5c499df82d586d9be299d","target":"graph","created_at":"2026-05-17T23:55:15Z","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 characterize the performance of a backscatter tag-to-tag (T2T) multi-hop network. For this, we developed a discrete component-based backscatter T2T transceiver and a communication protocol suite. The protocol composed of a novel (i) flooding-based link control tailored towards backscatter transmission, and (ii) low-power listening MAC. The MAC design is based on the new insight that backscatter reception is more energy costly than transmission. Our experiments show that multi-hopping extends the coverage of backscatter networks by enabling longer backward T2T links (tag far from the exciter","authors_text":"Amjad Yousef Majid, Guillermo Ortas Delgado, Kas{\\i}m Sinan Y{\\i}ld{\\i}r{\\i}m, Michel Jansen, Przemys{\\l}aw Pawe{\\l}czak","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-01-29T13:28:02Z","title":"Multi-hop Backscatter Tag-to-Tag Networks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.10274","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:d54818f2acd938d94c801dc8c438b1e2e931f51a2b05f5995f526a5f3b80cc59","target":"record","created_at":"2026-05-17T23:55:15Z","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":"918c72d44f3e123df1cd27ac10e8af1ef5c8e311a851b45ae5a0ce646668dcee","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2019-01-29T13:28:02Z","title_canon_sha256":"1a732d5aea8f877a4b3f4e774046ffcbff06d43b4dc57b74ee376c39050ba5b4"},"schema_version":"1.0","source":{"id":"1901.10274","kind":"arxiv","version":1}},"canonical_sha256":"ff1a3baf1b109d8fbfb7a717ce53b98460a214e7805bf5cdee9f37e53cc009ad","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ff1a3baf1b109d8fbfb7a717ce53b98460a214e7805bf5cdee9f37e53cc009ad","first_computed_at":"2026-05-17T23:55:15.695255Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:15.695255Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V7rypa5Ymard+fN33jzs0dbWe08Bqiu6FZRHY6953q/YT6ogMe1eaJM1T1p7UkOA+rG0psF6kAMApDcIOJXFDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:15.695714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.10274","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d54818f2acd938d94c801dc8c438b1e2e931f51a2b05f5995f526a5f3b80cc59","sha256:05e9a7191efe210485ae703c6914b3c5b12b9b4954e5c499df82d586d9be299d"],"state_sha256":"4ed92d1849bb8aa00d90f93254602e7b8a183ba75043f03d36f4fac250ab61cb"}