{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:46U6WVJ6A7YPRGZJJWPQUV2V5M","short_pith_number":"pith:46U6WVJ6","canonical_record":{"source":{"id":"1903.10293","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-25T13:11:57Z","cross_cats_sorted":[],"title_canon_sha256":"5829f34b7ec7c564bae260300766188e41ef7f4e57467fb860e61ae19f568772","abstract_canon_sha256":"316fe6023c965fb7073eb8498908d0ab39aa04a258333246e222926237625a41"},"schema_version":"1.0"},"canonical_sha256":"e7a9eb553e07f0f89b294d9f0a5755eb1ce05b462d4a1603341994653934d007","source":{"kind":"arxiv","id":"1903.10293","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.10293","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"arxiv_version","alias_value":"1903.10293v1","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.10293","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"pith_short_12","alias_value":"46U6WVJ6A7YP","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"46U6WVJ6A7YPRGZJ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"46U6WVJ6","created_at":"2026-05-18T12:33:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:46U6WVJ6A7YPRGZJJWPQUV2V5M","target":"record","payload":{"canonical_record":{"source":{"id":"1903.10293","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-25T13:11:57Z","cross_cats_sorted":[],"title_canon_sha256":"5829f34b7ec7c564bae260300766188e41ef7f4e57467fb860e61ae19f568772","abstract_canon_sha256":"316fe6023c965fb7073eb8498908d0ab39aa04a258333246e222926237625a41"},"schema_version":"1.0"},"canonical_sha256":"e7a9eb553e07f0f89b294d9f0a5755eb1ce05b462d4a1603341994653934d007","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:54.521288Z","signature_b64":"Q2DyPZijDyRls5joJh8agaZt9VK9HDj+wyFQDqC+6JVazc1YanoD2sndhy4BTiYWj36C835aYRGaZrv+LYDIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7a9eb553e07f0f89b294d9f0a5755eb1ce05b462d4a1603341994653934d007","last_reissued_at":"2026-05-17T23:39:54.520677Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:54.520677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.10293","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":"2026-05-17T23:39:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DofaIbSLVxnflHgBB4aZtegHkQ636pF6DpgGD08dHVTO6myUCHWsGd3/Rsb//nCSoIvI8m2zRwAnE1Cr3VomDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:22:01.808762Z"},"content_sha256":"f76ca3596925cbe0f2f704c793ed5d7612f9af38772763af1ffbdaab90d46235","schema_version":"1.0","event_id":"sha256:f76ca3596925cbe0f2f704c793ed5d7612f9af38772763af1ffbdaab90d46235"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:46U6WVJ6A7YPRGZJJWPQUV2V5M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Inter-Media Backscatter Communications with Magnetic Induction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Hongzhi Guo, Zhi Sun","submitted_at":"2019-03-25T13:11:57Z","abstract_excerpt":"Wireless sensors in extreme environments such as underground, concrete wall, and the human body, can enable a large number of important applications. However, deploying wireless sensors in such environments on a large scale is a great challenge due to the high cost and the large profile of wireless sensors. Backscatter communications can reduce the cost and size of wireless sensors by removing most of the typical wireless components. In this paper, we propose to leverage the RFID sensors for inter-media magnetic induction-based backscatter communications (MIBC). In this way, the complexity and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.10293","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":""},"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":"2026-05-17T23:39:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ThK3XjgIMN3DlZgWdp8y8/CGyA+mHwnrh9cjCTAac17HJXQ+lq/1LZWgX1Q0psC18jKoR8BNsTN58YCKHdGeAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T21:22:01.809437Z"},"content_sha256":"257e4b1a931880841e7a821be84924db290b95fd583bb3a13e5d0fb961f20a24","schema_version":"1.0","event_id":"sha256:257e4b1a931880841e7a821be84924db290b95fd583bb3a13e5d0fb961f20a24"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M/bundle.json","state_url":"https://pith.science/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M/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":"2026-06-06T21:22:01Z","links":{"resolver":"https://pith.science/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M","bundle":"https://pith.science/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M/bundle.json","state":"https://pith.science/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/46U6WVJ6A7YPRGZJJWPQUV2V5M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:46U6WVJ6A7YPRGZJJWPQUV2V5M","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":"316fe6023c965fb7073eb8498908d0ab39aa04a258333246e222926237625a41","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-25T13:11:57Z","title_canon_sha256":"5829f34b7ec7c564bae260300766188e41ef7f4e57467fb860e61ae19f568772"},"schema_version":"1.0","source":{"id":"1903.10293","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.10293","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"arxiv_version","alias_value":"1903.10293v1","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.10293","created_at":"2026-05-17T23:39:54Z"},{"alias_kind":"pith_short_12","alias_value":"46U6WVJ6A7YP","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_16","alias_value":"46U6WVJ6A7YPRGZJ","created_at":"2026-05-18T12:33:10Z"},{"alias_kind":"pith_short_8","alias_value":"46U6WVJ6","created_at":"2026-05-18T12:33:10Z"}],"graph_snapshots":[{"event_id":"sha256:257e4b1a931880841e7a821be84924db290b95fd583bb3a13e5d0fb961f20a24","target":"graph","created_at":"2026-05-17T23:39:54Z","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":"Wireless sensors in extreme environments such as underground, concrete wall, and the human body, can enable a large number of important applications. However, deploying wireless sensors in such environments on a large scale is a great challenge due to the high cost and the large profile of wireless sensors. Backscatter communications can reduce the cost and size of wireless sensors by removing most of the typical wireless components. In this paper, we propose to leverage the RFID sensors for inter-media magnetic induction-based backscatter communications (MIBC). In this way, the complexity and","authors_text":"Hongzhi Guo, Zhi Sun","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-25T13:11:57Z","title":"Inter-Media Backscatter Communications with Magnetic Induction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.10293","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:f76ca3596925cbe0f2f704c793ed5d7612f9af38772763af1ffbdaab90d46235","target":"record","created_at":"2026-05-17T23:39:54Z","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":"316fe6023c965fb7073eb8498908d0ab39aa04a258333246e222926237625a41","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2019-03-25T13:11:57Z","title_canon_sha256":"5829f34b7ec7c564bae260300766188e41ef7f4e57467fb860e61ae19f568772"},"schema_version":"1.0","source":{"id":"1903.10293","kind":"arxiv","version":1}},"canonical_sha256":"e7a9eb553e07f0f89b294d9f0a5755eb1ce05b462d4a1603341994653934d007","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7a9eb553e07f0f89b294d9f0a5755eb1ce05b462d4a1603341994653934d007","first_computed_at":"2026-05-17T23:39:54.520677Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:54.520677Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Q2DyPZijDyRls5joJh8agaZt9VK9HDj+wyFQDqC+6JVazc1YanoD2sndhy4BTiYWj36C835aYRGaZrv+LYDIAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:54.521288Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.10293","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f76ca3596925cbe0f2f704c793ed5d7612f9af38772763af1ffbdaab90d46235","sha256:257e4b1a931880841e7a821be84924db290b95fd583bb3a13e5d0fb961f20a24"],"state_sha256":"b10e6ef01d7d0d34a125784234665defa09dc4737697dcb130be200c20159dda"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"APHEDpPITQBENQLML15veYiMCVHMRM7S8YKJS9KEf4H9WIRR+P9svlibpPtEQxusckxeBUVIMEs/3lonXqpEDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T21:22:01.812779Z","bundle_sha256":"9908aa1beba6b83593d04e207e1929d6b31f37b5c6d319fbddaef80618b5b4a7"}}